Patents 5257134 - 5257388

 

 

Patent 5257134: Zoom lens
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With variable magnification (e.g., zoom type) : With fixed conjugates : In a variable media (e.g., gas, elastomer, etc.))

Patent 5257135: Compact zoom lens system
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With variable magnification (e.g., zoom type) : With mechanical compensation : Three groups : + - - + Arrangement)

Patent 5257136: Reverse telephoto agron objective lens
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : Reverse telephoto : With five or less components : Having curvilinear lens)

Patent 5257137: Photo-taking lens for an underwater camera
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : Multiple component lenses : Four components : First component negative)

Patent 5257138: Optical unit for use in an image forming apparatus
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With support : Lens mounts : Monocular loupe type)

Patent 5257139: Reflection reduction projection optical system
(OPTICAL: SYSTEMS AND ELEMENTS : MIRROR : Plural mirrors or reflecting surfaces : With successive reflections : Including curved mirror surfaces in series : With concave and convex mirrors in series : Sliding barrels)

Patent 5257140: Mirror for infrared and visible wavelength radiation
(OPTICAL: SYSTEMS AND ELEMENTS : MIRROR : With selective absorption or transparent overcoating : Laminated or layered mirror support)

Patent 5257141: Method of recording a digital video signal
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : CONVERTING AN ANALOG SIGNAL TO DIGITAL FORM FOR RECORDING; REPRODUCING AND RECONVERTING : Frequency)

Patent 5257142: Video cassette recorder which stores signal during tape replacement and records stored signal with next signal in picture-in-picture format
(TELEVISION SIGNAL PROCESSING FOR DYNAMIC RECORDING OR REPRODUCING : PROCESSING OF TELEVISION SIGNAL FOR DYNAMIC RECORDING OR REPRODUCING : Using disc)

Patent 5257143: Method and apparatus for positioning head of disk drive using zone-bit-recording
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : GENERAL PROCESSING OF A DIGITAL SIGNAL : Data in specific format : Intra-cell transition)

Patent 5257144: Synchronization and automatic resynchronization of multiple incremental recorders
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : GENERAL PROCESSING OF A DIGITAL SIGNAL : Data clocking : Intra-cell transition)

Patent 5257145: Optical data recording and reproducing apparatus
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With support : Lens mounts : Monocular loupe type)

Patent 5257146: Magnetic head swing clamp and cross-talk eliminator for read/write preamplifier
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : GENERAL RECORDING OR REPRODUCING : Specifics of the amplifier : Between heads in alternate engagement with medium)

Patent 5257147: Method for setting tracking data of variable speed modes in a video tape recorder
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : AUTOMATIC CONTROL OF A RECORDER MECHANISM : Controlling the record : Speed : Linear carrier : Plural speed transport : Variable speed :)

Patent 5257148: Method and apparatus for positioning a magnetic head in a magnetic layer memory system using tracking by reading a spaced pair of corresponding
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : AUTOMATIC CONTROL OF A RECORDER MECHANISM : Controlling the head : Track centering : Rotary carrier : Reproduced data signal used for tracking : By signal derived from transport)

Patent 5257149: Disc drive with offset address field
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : AUTOMATIC CONTROL OF A RECORDER MECHANISM : Controlling the head : Track changing : For rotary carrier (e.g., disc) : By recorded servo reference or address signal : Stepping motor)

Patent 5257150: Magnetic tape cassette apparatus having a tiltable transport member for switching tape transport direction
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORD TRANSPORT WITH HEAD STATIONARY DURING TRANSDUCING : Tape record : Tape in container : Plural reels : Reel drive details : Stepping motor)

Patent 5257151: Disc-drive with a rim-motor
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORD TRANSPORT WITH HEAD STATIONARY DURING TRANSDUCING : Disk record : Plural disks : Rotational drive detail : Mechanical detail)

Patent 5257152: Disk drive apparatus having a spindle permitting a thinner disk drive
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORD TRANSPORT WITH HEAD STATIONARY DURING TRANSDUCING : Disk record : Rotational drive detail : Motorized)

Patent 5257153: Disc case
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORD MEDIUM : In container : For disk : Disc record)

Patent 5257154: Recording medium disk with clearance for adhesive bond
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORD MEDIUM : Disk : For disk)

Patent 5257155: Short-circuit proof field effect transistor
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : SAFETY AND PROTECTION OF SYSTEMS AND DEVICES : Voltage regulator protective circuits : Shunt connected capacitors)

Patent 5257156: Turn-on transient overcurrent response suppressor
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : SAFETY AND PROTECTION OF SYSTEMS AND DEVICES : Voltage regulator protective circuits : Shunt connected capacitors)

Patent 5257157: Protector network for A-C equipment
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : SAFETY AND PROTECTION OF SYSTEMS AND DEVICES : Transient responsive : Plural conductors in single sheath (e.g., compound))

Patent 5257158: Apparatus for magnetizing and demagnetizing a tool
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : CONTROL CIRCUITS FOR ELECTROMAGNETIC DEVICES : Systems for magnetizing, demagnetizing, or controlling the magnetic field : Horn gap)

Patent 5257159: Electronically monitored and controlled electrostatic discharge flooring system
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : DISCHARGING OR PREVENTING ACCUMULATION OF ELECTRIC CHARGE (E.G., STATIC ELECTRICITY) : Specific conduction means or dissipator : With external structure of vehicle)

Patent 5257160: Serial signal transmission device and control method for determining polarity
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : POLARITY REVERSING : Automatic : Phase comparison)

Patent 5257161: Coupling system for electric switchgear modules in transformation centers and the like
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electrical power distribution systems and devices : Electrical switchgear : Gas insulated)

Patent 5257162: Bellows lid for c4 flip-chip package
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : With cooling means : Thermal conduction : With cooling fins)

Patent 5257163: Computer system having monitor with detachable module for providing diverse functionality
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : Computer related support : Input/output device support : Disk drive support)

Patent 5257164: Counter-top touch-screen interface terminal chassis having a plurality of positions
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : Including display support : Fluid)

Patent 5257165: Pin grid array adaptor mounting hardware
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : Printed circuit board : With locking means or device)

Patent 5257166: Configurable electronic circuit board adapter therefor, and designing method of electronic circuit using the same board
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : Printed circuit board : Connection of components to board : With lock or interlock)

Patent 5257167: Silhouette illuminated vehicle display apparatus
(ILLUMINATION : ILLUMINATED SCALE OR DIAL : Edge illuminated modifier or light rod/pipe : Plural light sources : Indexing (i.e., dynamic))

Patent 5257168: Projection headlamp lighting system using a light conductor having stepped termination
(ILLUMINATION : LIGHT FIBER, ROD, OR PIPE : With optical fiber bundle : Including specific fiber structure : Type of surface)

Patent 5257169: Barbecue grill lighting apparatus
(ILLUMINATION : WITH HEATER OR REFRIGERATOR : Cleaning)

Patent 5257170: Electric converter with several induction coils
(ELECTRIC POWER CONVERSION SYSTEMS : CURRENT CONVERSION : Including D.C.-A.C.-D.C. converter : Having transistorized inverter : With dynamic rectifier in phase 2 to D.C. stage (e.g., commutator type))

Patent 5257171: Electric control apparatus for dishwashing machine
(DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS : GENERIC CONTROL SYSTEM, APPARATUS OR PROCESS : Sequential or selective : State of condition or parameter (e.g., on/off) : Time responsive (duration) :)

Patent 5257172: Trouble light
(ILLUMINATION : QUICK DISCONNECT-TYPE LIGHT UNIT : Particular engagement : Push to engage : Male contact : Snap means)

Patent 5257173: Light irradiating apparatus having light emitting diode used as light source
(ILLUMINATION : PLURAL LIGHT SOURCES : With modifier : Different wavelengths)

Patent 5257174: Engine-driven power generating system with over-current protection and stator teeth with grooves on a top surface
(ELECTRIC POWER CONVERSION SYSTEMS : CURRENT CONVERSION : Including an A.C.-D.C.-A.C. converter : For change of phase (e.g., number of phases) : Double-ended type (i.e., push-pull))

Patent 5257175: Analog control of inductive flyback voltages in a full bridge circuit
(ELECTRIC POWER CONVERSION SYSTEMS : CURRENT CONVERSION : Including automatic or integral protection means : For inverters : Transistor inverter : Bridge type : For semiconductor rectifier)

Patent 5257176: Control operation specification setting apparatus for an elevator
(DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS : GENERIC CONTROL SYSTEM, APPARATUS OR PROCESS : Having operator control interface (e.g., control/display console) : Backup/standby)

Patent 5257177: Apparatus for controlling the movement of hydraulically movable work equipment and a path control arrangement
(DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS : GENERIC CONTROL SYSTEM, APPARATUS OR PROCESS : Digital positioning (other than machine tool) : Multiple axis motion or path control : Having optical sensing (e.g., image projection))

Patent 5257178: Method of optimally operating a computer numerical control milling machine to mill optimal high density interconnect substrates
(DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS : GENERIC CONTROL SYSTEM, APPARATUS OR PROCESS : Having preparation of program : Positional (e.g., joystick))

Patent 5257179: Audit and pricing system for coin-operated games
(AMUSEMENT DEVICES: GAMES : INCLUDING MEANS FOR PROCESSING ELECTRONIC DATA (E.G., COMPUTER/VIDEO GAME, ETC.) : Credit/debit monitoring or manipulation (e.g., game entry, betting, prize level, etc.) : Lot generator (e.g., card distribution, simulated dice, random number generator, etc.))

Patent 5257180: Controlling system for parallel operation of AC output inverters with restrained cross currents
(ELECTRIC POWER CONVERSION SYSTEMS : CURRENT CONVERSION : Having plural converters for single conversion : Plural inverters : In parallel)

Patent 5257181: Programmable control system
(DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS : GENERIC CONTROL SYSTEM, APPARATUS OR PROCESS : Sequential or selective : Plural controllers : Specific programming (e.g., relay or ladder logic))

Patent 5257182: Morphological classification system and method
(IMAGE ANALYSIS : PATTERN RECOGNITION : Classification : Electronic template)

Patent 5257183: Method and apparatus for converting cone beam X-ray projection data to planar integral and reconstructing a three-dimensional computerized
(X-RAY OR GAMMA RAY SYSTEMS OR DEVICES : SPECIFIC APPLICATION : Computerized tomography :)

Patent 5257184: Method and apparatus with multiple data input stylii for collecting curvilinear contour data
(DENTISTRY : APPARATUS : Having gauge or guide : Having tool, marker, or coupling or guiding means therefor : Articulator or attachment therefor)

Patent 5257185: Interactive, cross-referenced knowledge system
(DATA PROCESSING: DATABASE AND FILE MANAGEMENT OR DATA STRUCTURES : DATABASE SCHEMA OR DATA STRUCTURE : Distributed or remote access)

Patent 5257186: Digital computing apparatus for preparing document text
(DATA PROCESSING: PRESENTATION PROCESSING OF DOCUMENT, OPERATOR INTERFACE PROCESSING, AND SCREEN SAVER DISPLAY PROCESSING : PRESENTATION PROCESSING OF DOCUMENT : Edit, composition, or storage control : Text : Horizontal spacing)

Patent 5257187: Translation machine system
(DATA PROCESSING: SPEECH SIGNAL PROCESSING, LINGUISTICS, LANGUAGE TRANSLATION, AND AUDIO COMPRESSION/DECOMPRESSION : LINGUISTICS : Translation machine : Having particular Input/Output device :)

Patent 5257188: Engine brake control of continuous variable transmission responsive to vehicle brake
(DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION : VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION : Transmission control : And other vehicle control : By frequency or waveform analysis)

Patent 5257189: Speed stage shifting of automatic transmission of automobile in relation to yaw rate in steering
(DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION : VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION : Transmission control : By changing shift map, schedule, or pattern : Having a plurality of preset maps, schedules, or patterns : Inner/outer loop)

Patent 5257190: Interactive dynamic realtime management system for powered vehicles
(DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION : VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION : Vehicle diagnosis or maintenance indication : With data recording device : Modification or correction of route information)

Patent 5257191: Steering device for rear vehicle wheels
(DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION : VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION : Vehicle subsystem or accessory control : Steering control : Fail-safe system : Inner/outer loop)

Patent 5257192: Brake pressure control system for motor vehicles
(DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION : VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION : Indication or control of braking, acceleration, or deceleration : Antiskid, antilock, or brake slip control : Control of brake pressure : Having speed variation responsive means (e.g., acceleration, deceleration) :)

Patent 5257193: Method of automatically changing the speed stage of a construction vehicle based on vehicle loading
(DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION : VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION : With indicator or control of power plant (e.g., performance) : Internal-combustion engine : Digital or programmed data processor : Speed, acceleration, deceleration : Detection of O2 concentration)

Patent 5257194: Highway traffic signal local controller
(DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION : VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION : Traffic analysis or control of surface vehicle : Internal-combustion engine)

Patent 5257195: On-board vehicle position detector
(DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION : NAVIGATION : Employing position determining equipment : Using Global Positioning System (GPS) : Means to improve accuracy of position or location : Having an self-contained position computing means (e.g., dead reckoning) : Detection of O2 concentration)

Patent 5257196: Apparatus and method for the processing of mail
(DATA PROCESSING: FINANCIAL, BUSINESS PRACTICE, MANAGEMENT, OR COST/PRICE DETERMINATION : FOR COST/PRICE : Postage meter system : Recharging : With paper check handling)

Patent 5257197: Franking module
(DATA PROCESSING: FINANCIAL, BUSINESS PRACTICE, MANAGEMENT, OR COST/PRICE DETERMINATION : FOR COST/PRICE : Postage meter system : With specific mail handling means : With paper check handling)

Patent 5257198: Method of transmitting edger information to a remote numerically controlled edger
(DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS : SPECIFIC APPLICATION, APPARATUS OR PROCESS : Product assembly or manufacturing : Particular manufactured product or operation : Machining : Having particular tool or tool operation : Control or detection of a particular condition)

Patent 5257199: Apparatus for identifying tools and for managing tool data
(DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS : SPECIFIC APPLICATION, APPARATUS OR PROCESS : Product assembly or manufacturing : Particular manufactured product or operation : Machining : Having particular tool or tool operation : Control or detection of a particular condition)

Patent 5257200: Optimization system
(DATA PROCESSING: STRUCTURAL DESIGN, MODELING, SIMULATION, AND EMULATION : MODELING BY MATHEMATICAL EXPRESSION :)

Patent 5257201: Method to efficiently reduce the number of connections in a circuit
(DATA PROCESSING: DESIGN AND ANALYSIS OF CIRCUIT OR SEMICONDUCTOR MASK : CIRCUIT DESIGN : Optimization (e.g., redundancy, compaction) :)

Patent 5257202: Method and means for parallel frequency acquisition in frequency domain fluorometry
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : MEASUREMENT SYSTEM IN A SPECIFIC ENVIRONMENT : Chemical analysis : Specific signal data processing : Using radiant energy)

Patent 5257203: Method and apparatus for manipulating computer-based representations of objects of complex and unique geometry
(DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS : SPECIFIC APPLICATION, APPARATUS OR PROCESS : Product assembly or manufacturing : Particular manufactured product or operation : Machining : Having particular tool or tool operation : 3-D sculpturing using nontracing prototype sensor : Thickness control)

Patent 5257204: Automatic measuring apparatus for measuring a three-dimensional contour
(DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS : SPECIFIC APPLICATION, APPARATUS OR PROCESS : Product assembly or manufacturing : Particular manufactured product or operation : Machining : Having operator interface feature : Including CAD, CAM, or CIM technique : Tool/workpiece interference prevention)

Patent 5257206: Statistical process control for air separation process
(DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS : SPECIFIC APPLICATION, APPARATUS OR PROCESS : Chemical process control or monitoring system : Separation process : Of fuel)

Patent 5257207: Method for monitoring gasket compression during fastener tensioning
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : MEASUREMENT SYSTEM IN A SPECIFIC ENVIRONMENT : Mechanical measurement system : Force or torque measurement : Stress or strain measurement : Torsional, shear, tensile, or compression : Hydrocarbon prospecting)

Patent 5257208: Computerized portable testing device for backflow valves
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : MEASUREMENT SYSTEM : Pressure : Thermal related property)

Patent 5257209: Optical flow computation for moving sensors
(DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION : VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION :)

Patent 5257210: Processor for processing sensor signals to obtain a desired transfer behavior
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : TESTING SYSTEM : For transfer function determination : Tare weight adjusted)

Patent 5257211: Adjustable bandwidth concept (ABC) signal energy detector
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : MEASUREMENT SYSTEM IN A SPECIFIC ENVIRONMENT : Electrical signal parameter measurement system : Power parameter : Fault location)

Patent 5257212: Normalizing analyzer systems to a standard analyzer
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : MEASUREMENT SYSTEM IN A SPECIFIC ENVIRONMENT : Chemical analysis : Quantitative determination (e.g., mass, concentration, density) : Liquid mixture (e.g., solid-liquid, liquid-liquid) : Fluid flow investigation)

Patent 5257213: Method and circuit for two-dimensional discrete cosine transform
(ELECTRICAL COMPUTERS: ARITHMETIC PROCESSING AND CALCULATING : ELECTRICAL DIGITAL CALCULATING COMPUTER : Particular function performed : Transform : Multidimensional : Equalizer)

Patent 5257214: Qualification of register file write enables using self-timed floating point exception flags
(ELECTRICAL COMPUTERS: ARITHMETIC PROCESSING AND CALCULATING : ELECTRICAL DIGITAL CALCULATING COMPUTER : Particular function performed : Arithmetical operation : Status condition/flag generation or use : Matrix array)

Patent 5257215: Floating point and integer number conversions in a floating point adder
(ELECTRICAL COMPUTERS: ARITHMETIC PROCESSING AND CALCULATING : ELECTRICAL DIGITAL CALCULATING COMPUTER : Particular function performed : Format conversion : Zero suppression)

Patent 5257216: Floating point safe instruction recognition apparatus
(ELECTRICAL COMPUTERS: ARITHMETIC PROCESSING AND CALCULATING : ELECTRICAL DIGITAL CALCULATING COMPUTER : Particular function performed : Arithmetical operation : Floating point : Compensation for finite word length : Overflow or underflow :)

Patent 5257217: Area-efficient multiplier for use in an integrated circuit
(ELECTRICAL COMPUTERS: ARITHMETIC PROCESSING AND CALCULATING : ELECTRICAL DIGITAL CALCULATING COMPUTER : Particular function performed : Arithmetical operation : Multiplication : Binary : Repeated addition : Multiple digit : Carry-save adders (i.e., CSAs) :)

Patent 5257218: Parallel carry and carry propagation generator apparatus for use with carry-look-ahead adders
(ELECTRICAL COMPUTERS: ARITHMETIC PROCESSING AND CALCULATING : ELECTRICAL DIGITAL CALCULATING COMPUTER : Particular function performed : Arithmetical operation : Addition/subtraction : Binary : Parallel : Carry look-ahead : Slice block having block look-ahead :)

Patent 5257219: Spectrum equalization arrangement
(ELECTRICAL COMPUTERS: ARITHMETIC PROCESSING AND CALCULATING : ELECTRICAL ANALOG CALCULATING COMPUTER : Particular function performed : Filtering : Having tapped delay line)

Patent 5257220: Digital data memory unit and memory unit array
(STATIC INFORMATION STORAGE AND RETRIEVAL : ASSOCIATIVE MEMORIES : Magnetic)

Patent 5257221: Apparatus for selecting mumber of wait states in a burst EPROM architecture
(STATIC INFORMATION STORAGE AND RETRIEVAL : HARDWARE FOR STORAGE ELEMENTS : Shields : Erase)

Patent 5257222: Antifuse programming by transistor snap-back
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ ONLY SYSTEMS (I.E.. SEMIPERMANENT) : Fusible : With other type core)

Patent 5257223: Flip-flop circuit with controllable copying between slave and scan latches
(STATIC INFORMATION STORAGE AND RETRIEVAL : SYSTEMS USING PARTICULAR ELEMENT : Flip-flop (electrical) : Nuclear induction or spin echo)

Patent 5257224: Semiconductor device with multiple layers of memory cell arrays
(STATIC INFORMATION STORAGE AND RETRIEVAL : SYSTEMS USING PARTICULAR ELEMENT : Semiconductive : Diodes : Biax)

Patent 5257225: Method for programming programmable devices by utilizing single or multiple pulses varying in pulse width and amplitude
(STATIC INFORMATION STORAGE AND RETRIEVAL : FLOATING GATE : Particular biasing : Multiple pulses (e.g., ramp) : Weak inversion injection)

Patent 5257226: Integrated circuit with self-biased differential data lines
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ/WRITE CIRCUIT : Including reference or bias voltage generator : Four or more devices per bit)

Patent 5257227: Bipolar FET read-write circuit for memory
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ/WRITE CIRCUIT : For complementary information : Four or more devices per bit)

Patent 5257228: Efficiency improved DRAM row redundancy circuit
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ/WRITE CIRCUIT : Bad bit : Coincident A.C. signal with pulse)

Patent 5257229: Column redundancy architecture for a read/write memory
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ/WRITE CIRCUIT : Bad bit : Coincident A.C. signal with pulse)

Patent 5257230: Memory device including redundancy cells with programmable fuel elements and process of manufacturing the same
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ/WRITE CIRCUIT : Bad bit : Coincident A.C. signal with pulse)

Patent 5257231: Semicustom-made integrated circuit with built-in memory unit associated with internal timing generator for internal write enable signal
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ/WRITE CIRCUIT : Testing : Coincident A.C. signal with pulse)

Patent 5257232: Sensing circuit for semiconductor memory with limited bitline voltage swing
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ/WRITE CIRCUIT : Precharge : Coincident A.C. signal with pulse)

Patent 5257233: Low power memory module using restricted RAM activation
(STATIC INFORMATION STORAGE AND RETRIEVAL : POWERING : Conservation of power : Holographic)

Patent 5257234: Semiconductor integrated circuit device
(STATIC INFORMATION STORAGE AND RETRIEVAL : FLOATING GATE : Particular connection : Segregated columns : Rectangular bars)

Patent 5257235: Semiconductor memory device having serial access mode
(STATIC INFORMATION STORAGE AND RETRIEVAL : ADDRESSING : Plural blocks or banks : Standby power)

Patent 5257236: Static RAM
(STATIC INFORMATION STORAGE AND RETRIEVAL : ADDRESSING : Multiple port access : Alternate addressing (e.g., even/odd))

Patent 5257237: SAM data selection on dual-ported DRAM devices
(STATIC INFORMATION STORAGE AND RETRIEVAL : ADDRESSING : Multiple port access : Alternate addressing (e.g., even/odd))

Patent 5257238: Dynamic memory having access transistor turn-off state
(STATIC INFORMATION STORAGE AND RETRIEVAL : ADDRESSING : Particular decoder or driver circuit : Alternate addressing (e.g., even/odd))

Patent 5257239: Memory cell with known state on power-up
(STATIC INFORMATION STORAGE AND RETRIEVAL : ADDRESSING : Particular decoder or driver circuit : Alternate addressing (e.g., even/odd))

Patent 5257240: Wave restructurer/non-volatile computer memory bit
(STATIC INFORMATION STORAGE AND RETRIEVAL : MISCELLANEOUS : Including magnetic element)

Patent 5257241: Method and system for acquisition of 3-dimensional marine seismic data
(COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES : SEISMIC PROSPECTING : Offshore prospecting : Liquid or deformable surface holography)

Patent 5257242: Method of geophysical exploration
(COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES : SEISMIC PROSPECTING : Land-reflection type : Signal analysis and/or correction : Frequency dependent determination)

Patent 5257243: Flexible acoustic array with polymer hydrophones
(COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES : SIGNAL TRANSDUCERS : Underwater type : Elongated continuous type : Pressure compensating means)

Patent 5257244: Menu display of operating instructions with indicia for multimode electronic timepiece
(HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES : WITH MEMORANDUM HOLDER OR ERASABLE WRITING SURFACE : Movable belt)

Patent 5257245: Automatic mode sequencing to last used mode for multimode electronic timepiece
(HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES : CHRONOLOGICAL : With manually actuated display : Operated sequentially for distinct time data : Having mechanically actuated electrical switch)

Patent 5257246: Timekeeping display
(HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES : CASES : Wrist worn : With band or bracelet details : Setting)

Patent 5257247: Safety valve for diver's timepiece
(HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES : CASES : With protection means : For crown or stem : By waterproofing : Push-button stem type : Lever engagement)

Patent 5257248: Information recording apparatus capable of efficiently verifying recording information
(DYNAMIC INFORMATION STORAGE OR RETRIEVAL : INFORMATION LOCATION OR REMOTE OPERATOR ACTUATED CONTROL : Selective addressing of storage medium (e.g., programmed access) : Of optical storage medium : Electrical information signal processing : Monitoring signal error or verification : Correction of error : Magnetic domain wall)

Patent 5257249: Optical information recording reproducing apparatus for recording and reproducing information on a record medium and for generating track
(DYNAMIC INFORMATION STORAGE OR RETRIEVAL : WITH SERVO POSITIONING OF TRANSDUCER ASSEMBLY OVER TRACK COMBINED WITH INFORMATION SIGNAL PROCESSING : Optical servo system : Of track on single storage medium)

Patent 5257250: Tracking-control target-position adjustment method
(DYNAMIC INFORMATION STORAGE OR RETRIEVAL : WITH SERVO POSITIONING OF TRANSDUCER ASSEMBLY OVER TRACK COMBINED WITH INFORMATION SIGNAL PROCESSING : Optical servo system : Servo signal compared to a reference signal : Structure for shaping beam or causing astigmatic condition)

Patent 5257251: Single loop servo-positioning systems having means for changing the dynamic range of a position-error signal with speed of the relatively
(DYNAMIC INFORMATION STORAGE OR RETRIEVAL : WITH SERVO POSITIONING OF TRANSDUCER ASSEMBLY OVER TRACK COMBINED WITH INFORMATION SIGNAL PROCESSING : Optical servo system : Servo signal compared to a reference signal : Structure for shaping beam or causing astigmatic condition)

Patent 5257252: Adaptive control system for a disk drive actuator
(DYNAMIC INFORMATION STORAGE OR RETRIEVAL : WITH SERVO POSITIONING OF TRANSDUCER ASSEMBLY OVER TRACK COMBINED WITH INFORMATION SIGNAL PROCESSING : Optical servo system : Initialization/start-up or changing modes of system : Servo loop gain/switching control : Means to mask or shield a portion of the beam)

Patent 5257253: Laser vision disc with digital sound (LDD) disc player for reproducing analog audio signals mixed with digital audio signals
(TELEVISION SIGNAL PROCESSING FOR DYNAMIC RECORDING OR REPRODUCING : PROCESSING OF TELEVISION SIGNAL FOR DYNAMIC RECORDING OR REPRODUCING : Having another signal : Audio signal : Selective mode (e.g., mono, stereo, or bilingual) :)

Patent 5257254: Apparatus for controlling CD audio player to playback CD-ROM
(DYNAMIC INFORMATION STORAGE OR RETRIEVAL : INFORMATION LOCATION OR REMOTE OPERATOR ACTUATED CONTROL : Selective addressing of storage medium (e.g., programmed access) : Of optical storage medium : Remote operating mode control : Auxiliary information)

Patent 5257255: Recording and/or reproducing apparatus with sensor for detecting head speed or acceleration
(DYNAMIC INFORMATION STORAGE OR RETRIEVAL : CONDITION INDICATING, MONITORING, OR TESTING : Having abnormality condition indicating : Positioning adjunct)

Patent 5257256: Recording waveform for mark-length modulation optical recording
(DYNAMIC INFORMATION STORAGE OR RETRIEVAL : SPECIFIC DETAIL OF INFORMATION HANDLING PORTION OF SYSTEM : Radiation beam modification of or by storage medium : Light intensity adjustment or maintenance : With driving or stabilizing mechanism)

Patent 5257257: Method of controlling the operation of a packet switched CDMA communication network for controlling the operation of transmitters and
(MULTIPLEX COMMUNICATIONS : CHANNEL ASSIGNMENT TECHNIQUES : Combining or distributing information via code word channels using multiple access techniques (e.g., CDMA) : Control line is used to request or reserve access)

Patent 5257258: "Least time to reach bound" service policy for buffer systems
(MULTIPLEX COMMUNICATIONS : DATA FLOW CONGESTION PREVENTION OR CONTROL : Flow control of data transmission through a network : Based on data flow rate measurement)

Patent 5257259: Ring-type local area network
(MULTIPLEX COMMUNICATIONS : PATHFINDING OR ROUTING : Combined circuit switching and packet switching : Switching network having separate elements to handle circuit switched traffic and packet switched traffic : Channel reservation scheme)

Patent 5257260: Expanding switching capability of a time division communication system by multiplexing groups of circuits into successions
(MULTIPLEX COMMUNICATIONS : PATHFINDING OR ROUTING : Through a circuit switch : Switching control : Time switch, per se (e.g., T or T-T) : Time slot interchange, per se : Having details of control storage arrangement)

Patent 5257261: Methods and apparatus for concatenating a plurality of lower level SONET signals into higher level sonet signals
(MULTIPLEX COMMUNICATIONS : COMMUNICATION TECHNIQUES FOR INFORMATION CARRIED IN PLURAL CHANNELS : Combining or distributing information via time channels : Signaling (ancillary to main information) : Unique synchronization pulse)

Patent 5257262: DCME unit capable of processing a wide variety of input information signals
(MULTIPLEX COMMUNICATIONS : CHANNEL ASSIGNMENT TECHNIQUES : Combining or distributing information via time channels using multiple access technique (e.g., TDMA) : Using channel reservation : With priority resolution : Including a ring or loop for interconnecting inputs and outputs)

Patent 5257263: Circuit for decoding convolutional codes for executing the survivor path storage and reverse scanning stage of a Viterbi algorithm
(ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY : PULSE OR DATA ERROR HANDLING : Digital data error correction : Forward error correction by tree code (e.g., convolutional) : Viterbi decoding : Syndrome computed)

Patent 5257264: Automatically deactivated no-owner frame removal mechanism for token ring networks
(MULTIPLEX COMMUNICATIONS : CHANNEL ASSIGNMENT TECHNIQUES : Polling : Passing a signal identifying the idle or busy state of a channel (e.g., token passing) : On bus : On ring or loop : Initialization or reinitialization of network : Ring or loop forms backbone for interconnecting other networks)

Patent 5257265: Method and apparatus for reducing multipath distortion
(PULSE OR DIGITAL COMMUNICATIONS : EQUALIZERS : Automatic : Adaptive : Decision feedback equalizer : Having SAW or charge-transfer device)

Patent 5257266: Computer and communications systems employing universal direct spherics processing architectures
(ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY : DATA PROCESSING SYSTEM ERROR OR FAULT HANDLING : Reliability and availability : Fault recovery : By masking or reconfiguration : Of network :)

Patent 5257267: Variable length scan string and cell for same
(ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY : PULSE OR DATA ERROR HANDLING : Digital logic testing : Scan path testing (e.g., level sensitive scan design (LSSD)) : Clock or synchronization : Bus or I/O channel device fault)

Patent 5257268: Cost-function directed search method for generating tests for sequential logic circuits
(ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY : PULSE OR DATA ERROR HANDLING : Digital logic testing : Including test pattern generator : Clock or synchronization)

Patent 5257269: Error controller for use in debugging microprocessor
(ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY : DATA PROCESSING SYSTEM ERROR OR FAULT HANDLING : Reliability and availability : Fault locating (i.e., diagnosis or testing) : Component dependent technique : Bus, I/O channel, or network path component fault : Memory emulator feature)

Patent 5257270: Shift-correction code rate-enhancing parity encoding/decoding
(ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY : PULSE OR DATA ERROR HANDLING : Digital data error correction : Forward correction by block code : Code based on generator polynomial : Solid state memory)

Patent 5257271: Sample data transmission apparatus
(ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY : PULSE OR DATA ERROR HANDLING : Digital data error correction : Forward correction by block code : Double encoding codes (e.g., product, concatenated) : Bus or I/O channel device fault)

Patent 5257272: Time-varying modulo N trellis codes for input restricted partial response channels
(ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY : PULSE OR DATA ERROR HANDLING : Digital data error correction : Forward error correction by tree code (e.g., convolutional) : Trellis code : Syndrome computed)

Patent 5257273: Amplifier/filter combination
(COHERENT LIGHT GENERATORS : OPTICAL FIBER LASER :)

Patent 5257274: High power laser employing fiber optic delivery means
(COHERENT LIGHT GENERATORS : PARTICULAR BEAM CONTROL DEVICE : Tuning : Plural Q-switches)

Patent 5257275: Multiple output wavelength solid state laser and technique
(COHERENT LIGHT GENERATORS : PARTICULAR BEAM CONTROL DEVICE : Producing plural wavelength output : Frequency multiplying (e.g., harmonic generator))

Patent 5257276: Strained layer InP/InGaAs quantum well laser
(COHERENT LIGHT GENERATORS : PARTICULAR ACTIVE MEDIA : Semiconductor : Injection : Particular confinement layer : With strained layer :)

Patent 5257277: Semiconductor-laser-pumped, solid-state laser
(COHERENT LIGHT GENERATORS : PARTICULAR PUMPING MEANS : Pumping with optical or radiant energy : Semiconductor : Electron beam)

Patent 5257278: Helium-cadmium laser for 353.6 nm line
(COHERENT LIGHT GENERATORS : PARTICULAR RESONANT CAVITY : Specified cavity component : Reflector : Hollow electrode)

Patent 5257279: Adjustable focus technique and apparatus using a moveable weak lens
(COHERENT LIGHT GENERATORS : PARTICULAR RESONANT CAVITY : Specified cavity component : Lens or lens system : Hollow electrode)

Patent 5257280: Gas introducing and stirring apparatus of metallurgical vessel
(INDUSTRIAL ELECTRIC HEATING FURNACES : ARC FURNACE DEVICE : For manipulation of the charge or melt (e.g., stirring) : Discharge by tilting)

Patent 5257281: Induction heating apparatus and method
(INDUSTRIAL ELECTRIC HEATING FURNACES : INDUCTION FURNACE DEVICE : Coreless : Lining : Cooling)

Patent 5257282: High speed code sequence generator
(ELECTRICAL COMPUTERS: ARITHMETIC PROCESSING AND CALCULATING : ELECTRICAL DIGITAL CALCULATING COMPUTER : Particular function performed : Random number generation : Plural parallel outputs bits :)

Patent 5257283: Spread spectrum transmitter power control method and system
(TELECOMMUNICATIONS : TRANSMITTER AND RECEIVER AT SEPARATE STATIONS : Plural transmitters or receivers (i.e., more than two stations) : Central station (e.g., master, etc.) : To or from mobile station : Transmission power control technique : On-site or multi-site trunking)

Patent 5257284: Circuit for accurately measuring phase relationship of BPSK signals
(PULSE OR DIGITAL COMMUNICATIONS : SPREAD SPECTRUM : Chirp : Receiver)

Patent 5257285: Transimpedance pre-amplifier and a receiver including the pre-amplifier
(PULSE OR DIGITAL COMMUNICATIONS : EQUALIZERS : With indicator)

Patent 5257286: High frequency receive equalizer
(PULSE OR DIGITAL COMMUNICATIONS : EQUALIZERS : Automatic : Angle modulation)

Patent 5257287: Automatic polarity detection and correction method and apparatus employing linkpulses
(PULSE OR DIGITAL COMMUNICATIONS : MULTILEVEL : Disparity reduction : Duobinary)

Patent 5257288: Data transmission system
(PULSE OR DIGITAL COMMUNICATIONS : PULSE CODE MODULATION : Pulse code modulation)

Patent 5257289: High-speed hybrid transmission interface
(PULSE OR DIGITAL COMMUNICATIONS : CABLE SYSTEMS AND COMPONENTS : Noise or distortion reduction)

Patent 5257290: Transmission line termination of guide-communications wire for guided vehicles
(PULSE OR DIGITAL COMMUNICATIONS : SYSTEMS USING ALTERNATING OR PULSATING CURRENT : Plural channels for transmission of a single pulse train : Quadrature amplitude modulation : Plural feedback loops)

Patent 5257291: Circuit for evaluating frequency difference
(PULSE OR DIGITAL COMMUNICATIONS : RECEIVERS : Angle modulation : Phase shift keying : Including switching or gating (digital circuits))

Patent 5257292: Circuit arrangement for influencing the frequency response of a digital audio signal
(PULSE OR DIGITAL COMMUNICATIONS : RECEIVERS : Interference or noise reduction : By filtering (e.g., digital) : Separate mark and space channels)

Patent 5257293: Phase locked loop for extracting clock pulses through wave differential method
(PULSE OR DIGITAL COMMUNICATIONS : SYNCHRONIZERS : Phase displacement, slip or jitter correction : Phase locking : With frequency detector and phase detector : More than two phases)

Patent 5257294: Phase-locked loop circuit and method
(PULSE OR DIGITAL COMMUNICATIONS : SYNCHRONIZERS : Phase displacement, slip or jitter correction : Phase locking : Phase locked loop : More than two phases)

Patent 5257295: Core baffling device for nuclear reactors
(INDUCED NUCLEAR REACTIONS: PROCESSES, SYSTEMS, AND ELEMENTS : REACTOR PROTECTION OR DAMAGE PREVENTION : Core restraint means : Catalytic)

Patent 5257296: Steam generator chemical solvent mixing system and method
(INDUCED NUCLEAR REACTIONS: PROCESSES, SYSTEMS, AND ELEMENTS : FISSION REACTOR MATERIAL (INCLUDING REACTION PRODUCTS) TREATMENT : Impurity removal : By addition of material to coolant)

Patent 5257297: System for monitoring the radioactivity of liquid waste
(INDUCED NUCLEAR REACTIONS: PROCESSES, SYSTEMS, AND ELEMENTS : FISSION REACTOR MATERIAL (INCLUDING REACTION PRODUCTS) TREATMENT : Impurity removal : By addition of material to coolant)

Patent 5257298: Nuclear fuel pellets having an aluminosilicate deposition phase
(INDUCED NUCLEAR REACTIONS: PROCESSES, SYSTEMS, AND ELEMENTS : FUEL COMPONENT STRUCTURE : Encased with nonfuel component : Homogeneously intermixed : Multiple or composite cladding-type layers)

Patent 5257299: Method and system for counting irregularly shaped moving articles
(ELECTRICAL PULSE COUNTERS, PULSE DIVIDERS, OR SHIFT REGISTERS: CIRCUITS AND SYSTEMS : APPLICATIONS : Counting animate or inanimate entities :)

Patent 5257300: Digital anti-slosh system
(ELECTRICAL PULSE COUNTERS, PULSE DIVIDERS, OR SHIFT REGISTERS: CIRCUITS AND SYSTEMS : APPLICATIONS : Measuring or testing : Fluid flow : Counting by detecting electrical impedance variations)

Patent 5257301: Direct digital frequency multiplier
(ELECTRICAL PULSE COUNTERS, PULSE DIVIDERS, OR SHIFT REGISTERS: CIRCUITS AND SYSTEMS : SYSTEMS : Pulse multiplication or division : Biquinary code)

Patent 5257302: Fluorescent X-ray analyzing system
(X-RAY OR GAMMA RAY SYSTEMS OR DEVICES : SPECIFIC APPLICATION : Fluorescence : Composition analysis : Continuous image)

Patent 5257303: Surface channeled X-ray tube
(X-RAY OR GAMMA RAY SYSTEMS OR DEVICES : SPECIFIC APPLICATION : Diffraction, reflection, or scattering analysis : Spatial energy dispersion : Monochromator or focusing device : With plural dispersing elements :)

Patent 5257304: High-voltage power device and power pack for X-ray tube
(X-RAY OR GAMMA RAY SYSTEMS OR DEVICES : ELECTRONIC CIRCUIT : X-ray source power supply : Televison)

Patent 5257305: Slit radiography device provided with absorption elements, and procedure for producing absorption elements
(X-RAY OR GAMMA RAY SYSTEMS OR DEVICES : BEAM CONTROL : Scanner : Rotary)

Patent 5257306: Video teleconferencing system
(TELEVISION : TWO-WAY VIDEO AND VOICE COMMUNICATION (E.G., VIDEOPHONE) : Conferencing (e.g., loop) : Conferencing with multipoint control unit :)

Patent 5257307: Radio pager system which transmits secret coded messages from a caller to a pager terminal apparatus
(COMMUNICATIONS: ELECTRICAL : SELECTIVE : Having indication or alarm (e.g., location indication) : Code responsive (i.e., paging) : Paging terminal (i.e., element prior to the transmitter) : Message input : Zoned)

Patent 5257308: Pair facsimile devices
(TELEPHONIC COMMUNICATIONS : TELEPHONE LINE OR SYSTEM COMBINED WITH DIVERSE ELECTRICAL SYSTEM OR SIGNALLING (E.G., COMPOSITE) : To produce visual-graphic copy (e.g., facsimile) : Having detachable device (e.g., detachable storage medium, scanner) : Having acoustic link)

Patent 5257309: Dual tone multifrequency signal detection and identification methods and apparatus
(TELEPHONIC COMMUNICATIONS : CENTRALIZED SWITCHING SYSTEM : Switching controlled in response to called station addressing signal : Having shared or common switching control : Including registering or storing device for call address signal : Voice frequency receiver : Dual tone multifrequency (DTMF) receiver : End-to-end marking (e.g., self-seeking))

Patent 5257310: Portable telephone
(TELEPHONIC COMMUNICATIONS : TERMINAL : Housing or housing component : Handset structure : Moveable or removeable element (e.g., cover) : Rotatable mechanism (e.g., hinge) : Recording audio for use as the alerting signal)

Patent 5257311: System for monitoring ATM cross-connecting apparatus by inside-apparatus monitoring cell
(MULTIPLEX COMMUNICATIONS : DIAGNOSTIC TESTING (OTHER THAN SYNCHRONIZATION) : Fault detection : Of a switching system : ATM least cost routing)

Patent 5257312: Time-discrete stereo decoder
(ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES : BINAURAL AND STEREOPHONIC : Broadcast or multiplex stereo : FM final modulation : AM subcarrier :)

Patent 5257313: Surround audio apparatus
(ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES : BINAURAL AND STEREOPHONIC : Pseudo stereophonic : Pseudo quadrasonic : Having transmitter)

Patent 5257314: Voice recognition system having word frequency and intermediate result display features
(DATA PROCESSING: SPEECH SIGNAL PROCESSING, LINGUISTICS, LANGUAGE TRANSLATION, AND AUDIO COMPRESSION/DECOMPRESSION : SPEECH SIGNAL PROCESSING : Recognition : Word recognition : Specialized models)

Patent 5257315: Hearing aid to be worn in the ear
(ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES : HEARING AIDS, ELECTRICAL : Specified casing or housing : Component mounting : Helical spring)

Patent 5257316: Acoustic conductance and silencer utilizing same
(ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES : ACOUSTICAL NOISE OR SOUND CANCELLATION : Within duct : Inductive pickup)

Patent 5257317: Sound recording console
(ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES : WITH MIXER : With magnetic loudspeaker)

Patent 5257318: Earphone spacer with electronically variable sound level
(ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES : ELECTRO-ACOUSTIC AUDIO TRANSDUCER : Plural or compound reproducers : Headphone : Particular support structure : Sound conducting tube : Four or more diodes)

Patent 5257319: Character recognition apparatus
(IMAGE ANALYSIS : APPLICATIONS : Reading bank checks (e.g., documents bearing E-13B type characters) : Reading MICR data : Blood cells)

Patent 5257320: Signature verification system
(IMAGE ANALYSIS : APPLICATIONS : Personnel identification (e.g., biometrics) : Using a signature :)

Patent 5257322: Method and apparatus for pattern recognition and display with optical correlator
(IMAGE ANALYSIS : PATTERN RECOGNITION : Template matching (e.g., specific devices that determine the best match) : Spatial filtering (e.g., holography) : With electrically controlled light modulator or filter : Topological properties (e.g., number of holes in a pattern, connectivity, etc.))

Patent 5257323: Selection agent for a symbol determination system with multiple character recognition processors
(IMAGE ANALYSIS : EDITING, ERROR CHECKING, OR CORRECTION (E.G., POSTRECOGNITION PROCESSING) : Correcting alphanumeric recognition errors : Morphological operations (i.e., local neighborhood operations))

Patent 5257324: Zero-time-delay video processor circuit
(IMAGE ANALYSIS : IMAGE TRANSFORMATION OR PREPROCESSING : Changing the image coordinates : To change the scale or size of an image : Rotation of image is limited to 90 degrees, 180 degrees, or 270 degrees)

Patent 5257325: Electronic parallel raster dual image registration device
(IMAGE ANALYSIS : IMAGE TRANSFORMATION OR PREPROCESSING : Changing the image coordinates : Registering or aligning multiple images to one another : Where the object is a character, word, or text)

Patent 5257326: Method and apparatus for interpolating a video signal of a picture element which has not been sampled and transmitted by an interleave
(IMAGE ANALYSIS : IMAGE TRANSFORMATION OR PREPROCESSING : Changing the image coordinates : To change the scale or size of an image : Raising or lowering the image resolution (e.g., subpixel accuracy) : Interpolation : Using an Exclusive-OR gate)

Patent 5257327: Method of and apparatus for forming a one-page-image
(IMAGE ANALYSIS : IMAGE COMPRESSION OR CODING : Substantial processing of image in compressed form : Checking spelling for recognition)

Patent 5257328: Document recognition device
(IMAGE ANALYSIS : EDITING, ERROR CHECKING, OR CORRECTION (E.G., POSTRECOGNITION PROCESSING) : Including operator interaction : Morphological operations (i.e., local neighborhood operations))

Patent 5257329: Depolarization of light in an optical switching system
(OPTICAL WAVEGUIDES : POLARIZATION WITHOUT MODULATION : Electro-optic)

Patent 5257330: Polarization filter with intermediate optical waveguide which is monomodal for one polarization and bimodal for the other
(OPTICAL WAVEGUIDES : POLARIZATION WITHOUT MODULATION : Electro-optic)

Patent 5257331: Junction between a rectangular and a circular waveguide
(OPTICAL WAVEGUIDES : WITH OPTICAL COUPLER : Movable coupler : Single pole single throw)

Patent 5257332: Optical fiber expanded beam coupler
(OPTICAL WAVEGUIDES : WITH DISENGAGABLE MECHANICAL CONNECTOR : Structure surrounding optical fiber-to-fiber connection : Multi-part (e.g., two pieces screwed together or bayonet latched) : With additional structure at or immediately surrounding each optical fiber end face : Plural fiber-to-fiber connections :)

Patent 5257333: Connecting device for interconnection of optical fibres
(OPTICAL WAVEGUIDES : WITH DISENGAGABLE MECHANICAL CONNECTOR : Structure surrounding optical fiber-to-fiber connection : Multi-part (e.g., two pieces screwed together or bayonet latched) : With additional structure at or immediately surrounding each optical fiber end face : Fiber end held in ferrule : Plural rods or balls structure :)

Patent 5257334: Ribbon type optical fiber connector
(OPTICAL WAVEGUIDES : WITH DISENGAGABLE MECHANICAL CONNECTOR : Structure surrounding optical fiber-to-fiber connection : Multi-part (e.g., two pieces screwed together or bayonet latched) : With additional structure at or immediately surrounding each optical fiber end face : Fiber end held in ferrule : Groove-type holding structure :)

Patent 5257335: Single mode optical fiber device including a short lens optical fiber
(OPTICAL WAVEGUIDES : WITH DISENGAGABLE MECHANICAL CONNECTOR : Optical fiber/optical fiber cable termination structure : At or immediately surrounding an optical fiber end face : Fiber end held in ferrule : Fiber end held in ferrule)

Patent 5257336: Optical subassembly with passive optical alignment
(OPTICAL WAVEGUIDES : WITH DISENGAGABLE MECHANICAL CONNECTOR : Optical fiber to a nonfiber optical device connector : With housing : Including lens : Fiber/ferrule further processed (grinding, polishing, etc.))

Patent 5257337: Method of and apparatus for effecting an end-to-end fusion splice between optical fibres
(OPTICAL WAVEGUIDES : WITH SPLICE (PERMANENT CONNECTION) : Including splice joint reinforcement : End-to-end (butt) coupling)

Patent 5257338: Device for transmitting and returning light and apparatus and method of manufacture
(OPTICAL WAVEGUIDES : OPTICAL FIBER WAVEGUIDE WITH CLADDING : Utilizing nonsolid core or cladding : With lens or mirror)

Patent 5257339: Package of optical fiber suitable for high speed payout
(OPTICAL WAVEGUIDES : OPTICAL FIBER WAVEGUIDE WITH CLADDING : Utilizing multiple core or cladding : Concentric : Where the second or further layer is a coating : Fiber/ferrule further processed (grinding, polishing, etc.))

Patent 5257340: Linear coated core/clad light source/collector
(OPTICAL WAVEGUIDES : OPTICAL FIBER WAVEGUIDE WITH CLADDING : Utilizing multiple core or cladding : Concentric : Where the second or further layer is a coating : Fiber/ferrule further processed (grinding, polishing, etc.))

Patent 5257341: Compact in-line thermostatically controlled electric water heater for use with dental instruments
(ELECTRIC RESISTANCE HEATING DEVICES : : Continuous flow type fluid heater : Heated line section with heating element internal of flow path : With jacket for heating element : Coiled)

Patent 5257342: Learning method for a data processing system with neighborhoods
(DATA PROCESSING: ARTIFICIAL INTELLIGENCE : NEURAL NETWORK : Learning method : Beamforming (e.g., target location, radar))

Patent 5257343: Intelligence information processing system
(DATA PROCESSING: ARTIFICIAL INTELLIGENCE : NEURAL NETWORK : Learning task : Association :)

Patent 5257344: Character outline processor using relatively small memory storing coordinate data groups for different outlines of same character, and
(OPTICAL WAVEGUIDES : OPTICAL TRANSMISSION CABLE : Loose tube type : Compartmentalized : Prestressed)

Patent 5257345: Computer system and method for displaying functional information with parallax shift
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS PROCESSING : Three-dimension :)

Patent 5257346: Wire-mesh generation from image data
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS PROCESSING : Attributes (surface detail or characteristic, display attributes) : Texture : Z buffer (depth buffer))

Patent 5257347: Display methods and apparatus
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS PROCESSING : Graphic manipulation (object processing or display attributes) : Rotation : Hierarchy of transformations (e.g., hierarchy of global and local coordinate))

Patent 5257348: Apparatus for storing data both video and graphics signals in a single frame buffer
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS DISPLAY MEMORY SYSTEM : Frame buffer : Multi-format frame buffer : Data transfer between system memory display memory)

Patent 5257349: Interactive data visualization with smart object
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: VIRTUAL MACHINE TASK OR PROCESS MANAGEMENT OR TASK MANAGEMENT/CONTROL : VIRTUAL MACHINE TASK OR PROCESS MANAGEMENT :)

Patent 5257350: Computer with self configuring video circuitry
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHIC PROCESSING SYSTEM : Mechanical control (e.g., rotatable knob, slider))

Patent 5257351: Selective processing of a data stream based on font format
(DATA PROCESSING: PRESENTATION PROCESSING OF DOCUMENT, OPERATOR INTERFACE PROCESSING, AND SCREEN SAVER DISPLAY PROCESSING : PRESENTATION PROCESSING OF DOCUMENT : Font selection : Handwritten textual input)

Patent 5257352: Input/output control method and system
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: MEMORY : STORAGE ACCESSING AND CONTROL : Hierarchical memories : Caching : Entry replacement strategy : Least recently used :)

Patent 5257353: I/O control system having a plurality of access enabling bits for controlling access to selective parts of an I/O device
(ELECTRICAL COMPUTERS AND DIGITAL DATA PROCESSING SYSTEMS: INPUT/OUTPUT : INPUT/OUTPUT DATA PROCESSING : Input/Output access regulation : Burst data transfer)

Patent 5257354: System for monitoring and undoing execution of instructions beyond a serialization point upon occurrence of in-correct results
(ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY : DATA PROCESSING SYSTEM ERROR OR FAULT HANDLING : Reliability and availability : Fault recovery : State recovery (i.e., process or data file) : Forward recovery (e.g., redoing committed action) : Prepared backup processor (e.g., initializing cold backup) or updating backup processor (e.g., by checkpoint message))

Patent 5257355: Method and apparatus for generating non-linearly interpolated data in a data stream
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS PROCESSING : Shape generating : Curve : Image based (addressing))

Patent 5257356: Method of reducing wasted bus bandwidth due to slow responding slaves in a multiprocessor computer system
(ELECTRICAL COMPUTERS AND DIGITAL DATA PROCESSING SYSTEMS: INPUT/OUTPUT : INTRASYSTEM CONNECTION (E.G., BUS AND BUS TRANSACTION PROCESSING) : Bus access regulation : Bus master/slave controlling : Hot docking)

Patent 5257357: Method and apparatus for implementing a priority adjustment of an interrupt in a data processor
(ELECTRICAL COMPUTERS AND DIGITAL DATA PROCESSING SYSTEMS: INPUT/OUTPUT : INTERRUPT PROCESSING : Handling vector : Variable)

Patent 5257358: Method for counting the number of program instruction completed by a microprocessor
(ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY : DATA PROCESSING SYSTEM ERROR OR FAULT HANDLING : Reliability and availability : Fault locating (i.e., diagnosis or testing) : Analysis (e.g., of output, state, or design) : Of computer software : Memory emulator feature)

Patent 5257359: Instruction cache buffer with program-flow control
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: MEMORY : STORAGE ACCESSING AND CONTROL : Hierarchical memories : Caching : Cache bypassing : Least recently used)

Patent 5257360: Re-configurable block length cache
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: MEMORY : STORAGE ACCESSING AND CONTROL : Hierarchical memories : Caching : Direct access storage device (DASD))

Patent 5257361: Method and apparatus for controlling one or more hierarchical memories using a virtual storage scheme and physical to virtual address
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: MEMORY : ADDRESS FORMATION : Address mapping (e.g., conversion, translation) : Virtual addressing : Translation tables (e.g., segment and page table or map) : Directory tables (e.g., DLAT, TLB) :)

Patent 5257362: Method and means for ensuring single pass small read/write access to variable length records stored on selected DASDs in a DASD array
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: MEMORY : STORAGE ACCESSING AND CONTROL : Specific memory composition : Accessing dynamic storage device : Direct access storage device (DASD) : Arrayed (e.g., RAIDs) :)

Patent 5257363: Computer-aided generation of programs modelling complex systems using colored petri nets
(DATA PROCESSING: STRUCTURAL DESIGN, MODELING, SIMULATION, AND EMULATION : SIMULATING ELECTRONIC DEVICE OR ELECTRICAL SYSTEM : Chemical)

Patent 5257364: Method for generating a correlated sequence of variates with desired marginal distribution for testing a model of a communications system
(DATA PROCESSING: STRUCTURAL DESIGN, MODELING, SIMULATION, AND EMULATION : SIMULATING ELECTRONIC DEVICE OR ELECTRICAL SYSTEM : Computer or peripheral device : Including logic)

Patent 5257365: Database system with multi-dimensional summary search tree nodes for reducing the necessity to access records
(DATA PROCESSING: DATABASE AND FILE MANAGEMENT OR DATA STRUCTURES : DATABASE SCHEMA OR DATA STRUCTURE : Distributed or remote access)

Patent 5257366: Query language execution on heterogeneous database servers using a bind-file bridge between application and database languages
(DATA PROCESSING: DATABASE AND FILE MANAGEMENT OR DATA STRUCTURES : DATABASE OR FILE ACCESSING : Query processing (i.e., searching) : Query formulation, input preparation, or translation :)

Patent 5257367: Data storage system with asynchronous host operating system communication link
(DATA PROCESSING: DATABASE AND FILE MANAGEMENT OR DATA STRUCTURES : FILE OR DATABASE MAINTENANCE : Coherency (e.g., same view to multiple users) : Archiving or backup :)

Patent 5257368: System for dynamically changing a system I/O configuration by determining differences between current and future configurations and
(DATA PROCESSING: DATABASE AND FILE MANAGEMENT OR DATA STRUCTURES : DATABASE OR FILE ACCESSING :)

Patent 5257369: Apparatus and method for providing decoupling of data exchange details for providing high performance communication between software processes
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: INTERPROGRAM COMMUNICATION OR INTERPROCESS COMMUNICATION (IPC) : INTERPROGRAM COMMUNICATION USING SHARED MEMORY :)

Patent 5257370: Method and system for optimizing data caching in a disk-based computer system
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: MEMORY : STORAGE ACCESSING AND CONTROL : Specific memory composition : Accessing dynamic storage device : Direct access storage device (DASD) : Caching :)

Patent 5257371: System packaging object class defining information
(DATA PROCESSING: DATABASE AND FILE MANAGEMENT OR DATA STRUCTURES : DATABASE SCHEMA OR DATA STRUCTURE : Object-oriented database structure : Pattern matching access)

Patent 5257372: Methods for efficient distribution of parallel tasks to slave processes in a multiprocessing system
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: VIRTUAL MACHINE TASK OR PROCESS MANAGEMENT OR TASK MANAGEMENT/CONTROL : TASK MANAGEMENT OR CONTROL : Process scheduling : Load balancing :)

Patent 5257373: System by determining if all multiple tasks were processed normally
(DATA PROCESSING: SOFTWARE DEVELOPMENT, INSTALLATION, AND MANAGEMENT : SOFTWARE PROGRAM DEVELOPMENT TOOL (E.G., INTEGRATED CASE TOOL OR STAND-ALONE DEVELOPMENT TOOL) : Testing or debugging : Design documentation)

Patent 5257374: Bus flow control mechanism
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: VIRTUAL MACHINE TASK OR PROCESS MANAGEMENT OR TASK MANAGEMENT/CONTROL : TASK MANAGEMENT OR CONTROL : Process scheduling : Load balancing :)

Patent 5257375: Method and apparatus for dispatching tasks requiring short-duration processor affinity
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: VIRTUAL MACHINE TASK OR PROCESS MANAGEMENT OR TASK MANAGEMENT/CONTROL : TASK MANAGEMENT OR CONTROL : Process scheduling : Resource allocation :)

Patent 5257376: Method and apparatus for configuring a control program nucleus with a minimum impact on system availabiltiy
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: SUPPORT : DIGITAL DATA PROCESSING SYSTEM INITIALIZATION OR CONFIGURATION (E.G., INITIALIZING, SET UP, CONFIGURATION, OR RESETTING) :)

Patent 5257377: Process for automatically migrating a subset of updated files from the boot disk to the replicated disks
(DATA PROCESSING: SOFTWARE DEVELOPMENT, INSTALLATION, AND MANAGEMENT : SOFTWARE UPGRADING OR UPDATING : Plural version management : Remote)

Patent 5257378: Network computer workstation with initial program load control
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: SUPPORT : DIGITAL DATA PROCESSING SYSTEM INITIALIZATION OR CONFIGURATION (E.G., INITIALIZING, SET UP, CONFIGURATION, OR RESETTING) : Loading initialization program (e.g., booting, rebooting, warm booting, remote booting, BIOS, initial program load (IPL), bootstrapping) :)

Patent 5257379: Establishing synchronization of hardware and software I/O configuration definitions
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: SUPPORT : DIGITAL DATA PROCESSING SYSTEM INITIALIZATION OR CONFIGURATION (E.G., INITIALIZING, SET UP, CONFIGURATION, OR RESETTING) :)

Patent 5257380: Initialization routine in an EEPROM
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: MEMORY : STORAGE ACCESSING AND CONTROL : Control technique : Resetting : With password or key)

Patent 5257381: Method of intercepting a global function of a network operating system and calling a monitoring function
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: INTERPROGRAM COMMUNICATION OR INTERPROCESS COMMUNICATION (IPC) : EVENT HANDLING OR EVENT NOTIFICATION : Agent)

Patent 5257382: Data bank priority system
(ELECTRICAL COMPUTERS AND DIGITAL DATA PROCESSING SYSTEMS: INPUT/OUTPUT : ACCESS ARBITRATING : Access prioritizing : Path selecting switch)

Patent 5257383: Programmable interrupt priority encoder method and apparatus
(ELECTRICAL COMPUTERS AND DIGITAL DATA PROCESSING SYSTEMS: INPUT/OUTPUT : INTERRUPT PROCESSING : Access prioritizing)

Patent 5257384: Asynchronous protocol for computer system manager
(ELECTRICAL COMPUTERS AND DIGITAL DATA PROCESSING SYSTEMS: INPUT/OUTPUT : INTRASYSTEM CONNECTION (E.G., BUS AND BUS TRANSACTION PROCESSING) : Protocol : Docking station)

Patent 5257385: Apparatus for providing priority arbitration in a computer system interconnect
(ELECTRICAL COMPUTERS AND DIGITAL DATA PROCESSING SYSTEMS: INPUT/OUTPUT : INTERRUPT PROCESSING : Interrupt prioritizing : Variable : Crossbar)

Patent 5257386: Data transfer control system for virtual machine system
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: PROCESSING ARCHITECTURES AND INSTRUCTION PROCESSING (E.G., PROCESSORS) : PROCESSING CONTROL : Processing control for data transfer : Masking)

Patent 5257387: Computer implemented method and apparatus for dynamic and automatic configuration of a computer system and circuit boards including
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: SUPPORT : CLOCK CONTROL OF DATA PROCESSING SYSTEM, COMPONENT, OR DATA TRANSMISSION : Correction for skew, phase, or rate)

Patent 5257388: Device for detecting whether an attached external memory stores valid data, if not, whether the external memory is capable of storing data
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: MEMORY : STORAGE ACCESSING AND CONTROL : Specific memory composition : Detachable memory : Direct access storage device (DASD))

 

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