Patents 5521735 - 5521987

 

 

Patent 5521735: Electron wave combining/branching devices and quantum interference devices
(OPTICAL COMMUNICATIONS : RECEIVER : Including optical element (e.g., lens, mirror, etc.) : Intermodulation)

Patent 5521736: Control circuits for parallel optical interconnects
(OPTICAL COMMUNICATIONS : TRANSMITTER AND RECEIVER SYSTEM : Including synchronization : Dispersion compensation)

Patent 5521737: Optical amplifier and optical communication system with optical amplifier using pumping light beam
(OPTICAL COMMUNICATIONS : DIAGNOSTIC TESTING : Determination of communication parameter : Using supervisory signal : Different wavelengths for diagnostic and communication :)

Patent 5521738: Data encoded optical pulse generator
(OPTICAL COMMUNICATIONS : TRANSMITTER : Having particular modulation : Soliton)

Patent 5521739: Raster output scanner for reducing color misregistration
(OPTICAL: SYSTEMS AND ELEMENTS : DEFLECTION USING A MOVING ELEMENT OR MEDIUM (OFFSETTING OR CHANGING AT LEAST A PORTION OF THE BEAM) : Using a periodically moving element (periodic change of optically reflecting, refracting or diffracting element) : Including reflective type moving element : Having multifaceted rotating element : Single plane mirror element)

Patent 5521740: Resonant optical scanner
(OPTICAL: SYSTEMS AND ELEMENTS : DEFLECTION USING A MOVING ELEMENT OR MEDIUM (OFFSETTING OR CHANGING AT LEAST A PORTION OF THE BEAM) : By moving a reflective element : Reflective element moved by deformable support : Having planar rotating reflector with rotation axis in its plane)

Patent 5521741: Polarization plane switch and optical switching device using the same
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL MODULATOR : Light wave temporal modulation (e.g., frequency, amplitude, etc.) : Changing bulk optical parameter : Electro-optic : Modulation of polarized light via modulating input signal : Having five or fewer facets)

Patent 5521742: Semiconductor optical modulator
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL MODULATOR : Light wave temporal modulation (e.g., frequency, amplitude, etc.) : Changing bulk optical parameter : Electro-optic : Modulation of polarized light via modulating input signal : Using reflective or cavity structure : Semiconductor :)

Patent 5521743: Photon-counting spatial light modulator with APD structure
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL MODULATOR : Light wave temporal modulation (e.g., frequency, amplitude, etc.) : Changing bulk optical parameter : Electro-optic : Modulation of polarized light via modulating input signal : Using reflective or cavity structure : Semiconductor :)

Patent 5521744: Dimmable safety mirror suitable for motor vehicles and method of operation
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL MODULATOR : Light wave temporal modulation (e.g., frequency, amplitude, etc.) : Changing bulk optical parameter : Electro-optic : Electrochromic : Reflection-type (e.g., display device) : Liquid medium)

Patent 5521745: Electrochromic device
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL MODULATOR : Light wave temporal modulation (e.g., frequency, amplitude, etc.) : Changing bulk optical parameter : Electro-optic : Electrochromic : Reflection-type (e.g., display device) : Liquid cell :)

Patent 5521746: Poppet valve modulator
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL MODULATOR : Light wave temporal modulation (e.g., frequency, amplitude, etc.) : By changing physical characteristics (e.g., shape, size or contours) of an optical element : Shape or contour of light control surface altered : Light control surface forms image on projected light beam : With particular direction of the field in relation to the medium, beam direction or polarization)

Patent 5521747: Electronically addressed deformable media light modulator
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL MODULATOR : Light wave temporal modulation (e.g., frequency, amplitude, etc.) : By changing physical characteristics (e.g., shape, size or contours) of an optical element : Shape or contour of light control surface altered : Light control surface forms image on projected light beam : With particular direction of the field in relation to the medium, beam direction or polarization)

Patent 5521748: Light modulator with a laser or laser array for exposing image data
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL MODULATOR : Having particular chemical composition or structure : Electro-optic)

Patent 5521749: Optical modulation apparatus
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL DEMODULATOR : Having particular chemical composition or structure)

Patent 5521750: Process for forming proton exchange layer and wavelength converting element
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL FREQUENCY CONVERTER : Dielectric optical waveguide type : Third harmonic)

Patent 5521751: Noise measurement for optical amplifier and a system therefor
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL AMPLIFIER : Correction of deleterious effects : Third harmonic)

Patent 5521752: Fiber-optic amplifier with a device for monitoring the input power
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL AMPLIFIER : Optical fiber : Feedback : Surge protection : Adjusting input signal power)

Patent 5521753: Multi-stage fibre amplifier
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL AMPLIFIER : Optical fiber : Pumping : Radiation routing : Adjusting input signal power)

Patent 5521754: Optical apparatus and a method using the apparatus, which utilizes the occurrence of a change in a both-end voltage of an amplifying region
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL AMPLIFIER : Particular active medium (e.g., crystal, plasma, fluid, etc.) : Semiconductor : Fault detection)

Patent 5521755: Epi-illumination system for microscopes
(OPTICAL: SYSTEMS AND ELEMENTS : COMPOUND LENS SYSTEM : Microscope : Illuminator : Focus adjustment)

Patent 5521756: Antistatic microscope
(OPTICAL: SYSTEMS AND ELEMENTS : COMPOUND LENS SYSTEM : Microscope : Stage or slide carrier : With illuminator support)

Patent 5521757: Adjustment lever for attachment to a scope adjustment ring
(OPTICAL: SYSTEMS AND ELEMENTS : COMPOUND LENS SYSTEM : Telescope : Focusing or relatively sliding barrels : With reticle)

Patent 5521758: Variable-magnification optical system capable of image stabilization
(OPTICAL: SYSTEMS AND ELEMENTS : IMAGE STABILIZATION : By movable refractive structure : Having plural reflecting surfaces)

Patent 5521759: Optical filters for suppressing unwanted reflections
(OPTICAL: SYSTEMS AND ELEMENTS : LIGHT INTERFERENCE : Produced by coating or lamina : Including metal or conductive layer : Laminated or layered)

Patent 5521760: Energy absorbing rearview mirror assembly
(OPTICAL: SYSTEMS AND ELEMENTS : GLARE OR UNWANTED LIGHT REDUCTION : With reflection)

Patent 5521761: Real image mode finder optical system with high magnification
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : Multiple component lenses : Three components : + - + Arrangement : With third component biconvex : With multiple element component)

Patent 5521762: Method for producing an objective lens actuator having elastic supports
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With support : Lens movable in its plane : Electromagnetic motive power : With third component biconvex)

Patent 5521763: Optical device
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With support : Lens mounts : Monocular loupe type)

Patent 5521764: Device for lateral adjustment of lenses in a high-performance lens system
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With support : Lens mounts : Adjustable : With axial adjustment (e.g., adjustable focus, etc.) : Electromagnetic or piezoelectric drive : Having a biconvex single element component)

Patent 5521765: Electrically-conductive, contrast-selectable, contrast-improving filter
(OPTICAL: SYSTEMS AND ELEMENTS : ABSORPTION FILTER : With selective absorption or transparent overcoating)

Patent 5521766: Method and apparatus for reproducing digital acoustic and video signals
(TELEVISION SIGNAL PROCESSING FOR DYNAMIC RECORDING OR REPRODUCING : PROCESSING OF TELEVISION SIGNAL FOR DYNAMIC RECORDING OR REPRODUCING : Having another signal : Audio signal : Digital audio signal : Plurality of audio channels)

Patent 5521767: Optimized equalizer system for data recovery and timing extraction in partial response read channels
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : GENERAL PROCESSING OF A DIGITAL SIGNAL : Head amplifier circuit : Intra-cell transition)

Patent 5521768: Low-power hard disk drive system architecture
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : AUTOMATIC CONTROL OF A RECORDER MECHANISM : Specifics of the amplifier)

Patent 5521769: Magnetic tape drive with displaceable head capable of a re-try operation
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : AUTOMATIC CONTROL OF A RECORDER MECHANISM : Synchronizing moving-head moving-record recorders : Recording amplifier)

Patent 5521770: Disc apparatus having a plurality of reading/recording head driving manners for disc track seeking movement
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : AUTOMATIC CONTROL OF A RECORDER MECHANISM : Controlling the head : Stopping or reversing)

Patent 5521771: Servo gain compensation in a disk drive
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : AUTOMATIC CONTROL OF A RECORDER MECHANISM : Controlling the head : Stopping or reversing)

Patent 5521772: Disk drive with accerleration rate sensing
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : AUTOMATIC CONTROL OF A RECORDER MECHANISM : Controlling the head : Stopping or reversing)

Patent 5521773: Method of compensating offtrack in disk unit
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : AUTOMATIC CONTROL OF A RECORDER MECHANISM : Controlling the head : Track centering : Rotary carrier : By memory storage of repeatable error or correction : By signal derived from transport)

Patent 5521774: Memory storage module for storing and accessing
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORD TRANSPORT WITH HEAD MOVING DURING TRANSDUCING : Slide or movie projectors)

Patent 5521775: Fast running mode conversion device for magnetic recording and reproducing apparatus
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORD TRANSPORT WITH HEAD MOVING DURING TRANSDUCING : Tape record : Rotating head : Tape in container : Drum)

Patent 5521776: Magnetic disk drive with dust cleaning function
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORD TRANSPORT WITH HEAD STATIONARY DURING TRANSDUCING : Disk record : Environmental control (e.g., air filter, temperature control) : Plural reels)

Patent 5521777: Automatic apparatus for selectively sliding a write-protect tab
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORD TRANSPORT WITH HEAD STATIONARY DURING TRANSDUCING : Disk record : Plural disks : Changer : Mechanical detail : With pivotal holder)

Patent 5521778: Disk drive with primary and secondary actuator drives
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : HEAD MOUNTING : For shifting head between tracks : Disk record : Arcuate head movement : Driver detail : Plural drivers for each head : Dithering)

Patent 5521779: Rotary magnetic head apparatus which includes a device for electrically connecting a circuit board, a rotor, and magnetic heads
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : HEAD MOUNTING : For moving head during transducing : Tape record having rotary head : Signal transfer to/from head : Electrical connection between head and rotary part of transformer : Hydrodynamic)

Patent 5521780: Tape cassette and magnetic recording/reproducing apparatus used therefor
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORD MEDIUM : In container : Pressure element)

Patent 5521781: Substrate for magnetic recording medium
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORD MEDIUM : Disk : For disk)

Patent 5521782: Ground fault detection system in a power supply for an electromagnetic riveting apparatus
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : SAFETY AND PROTECTION OF SYSTEMS AND DEVICES : Ground fault protection : Transformer with structurally combined protective device)

Patent 5521783: Electrostatic discharge protection circuit
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : SAFETY AND PROTECTION OF SYSTEMS AND DEVICES : Load shunting by fault responsive means (e.g., crowbar circuit) : Voltage responsive : With more than two wires)

Patent 5521784: Cover layer in filter unit for connectors
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : ELECTROSTATIC CAPACITORS : Fixed capacitor : Multiple capacitors : Mica)

Patent 5521785: Electrical driving unit
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : With cooling means : Thermal conduction : For printed circuit board : For integrated circuit)

Patent 5521786: Semiconductor module and IC package used for the semiconductor module
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : Printed circuit board : Plural : With separable connector or socket means : Stacked : Circuit board mounted)

Patent 5521787: Differential current fault protection for a system utilizing a power conversion unit exhibiting balanced load characteristics
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : SAFETY AND PROTECTION OF SYSTEMS AND DEVICES : Ground fault protection : Transformer with structurally combined protective device)

Patent 5521788: Electric vehicle control device
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : SAFETY AND PROTECTION OF SYSTEMS AND DEVICES : Ground fault protection : Transformer with structurally combined protective device)

Patent 5521789: BICMOS electrostatic discharge protection circuit
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : SAFETY AND PROTECTION OF SYSTEMS AND DEVICES : Transient responsive : Plural conductors in single sheath (e.g., compound))

Patent 5521790: Electrostatic chuck having relatively thick and thin areas and means for uniformly cooling said thick and thin areas during chuck anodization
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : ELECTRIC CHARGE GENERATING OR CONDUCTING MEANS (E.G., CHARGING OF GASES) : Use of forces of electric charge or field : Pinning : Liquid type)

Patent 5521791: Three-terminal dip type capacitor
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : ELECTROLYTIC SYSTEMS OR DEVICES : Solid electrolytic capacitor (e.g., dry electrolytic capacitor) : Casing : With header, cover, or endseal : Significant electrical connection means (e.g., terminals or leads) : Specific alignment or guide means)

Patent 5521792: Split shield amplifier housing and mount
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : With cooling means : Thermal conduction : For module : Electrically insulating thermally conductive)

Patent 5521793: Wireless base station
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : Printed circuit board : With housing or chassis : With particular conductive material or coating)

Patent 5521794: Radio comprised of flexible elements
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : Radio type : With particular insulation)

Patent 5521795: Solenoid mounting apparatus
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : Support brackets : With protective device or unit)

Patent 5521796: Light conducting plate for surface light source device and method for the manufacture thereof
(ILLUMINATION : EDGE LIGHTED PANEL : Light guide : Reflective face : Film or coating)

Patent 5521797: Backlighting device
(ILLUMINATION : EDGE LIGHTED PANEL : Light guide : Emission face : Indexing (i.e., dynamic))

Patent 5521798: Headlamp for vehicles with reflector edge cover
(ILLUMINATION : SUPPORTED BY VEHICLE STRUCTURE (E.G., ESPECIALLY ADAPTED FOR VEHICLE) : Light modifier : Adjustable or positionable : Reflector : Including brake or emergency)

Patent 5521799: Illuminated display assembly
(ILLUMINATION : SUPPORTED BY VEHICLE STRUCTURE (E.G., ESPECIALLY ADAPTED FOR VEHICLE) : Automobile : License plate : Sun visor or vanity mirror)

Patent 5521800: Bottom lighting system for use with a conveyer system
(ILLUMINATION : LIGHT FIBER, ROD, OR PIPE : With optical fiber bundle : Holder)

Patent 5521801: Lamp with oblong lighting means and reflectors
(ILLUMINATION : WITH STATIC STRUCTURE : Wall or ceiling : Repositionable as a unit)

Patent 5521802: Light enhanced music labels
(ILLUMINATION : WITH CONTAINER : With closure controlled switch : Subceiling)

Patent 5521803: Flashlight with flexible core
(ILLUMINATION : SELF POWERED LAMP : Lamp bulb or lamp support axis adjustable or angularly fixed relative to axis of flashlight casing : Flexibly or extensibly mounted lamp bulb or lamp support : Tube structure)

Patent 5521804: Lighting fixture having pivotable lamp sockets
(ILLUMINATION : ELONGATED SOURCE LIGHT UNIT OR SUPPORT : Repositionable : With switch)

Patent 5521805: Fluorescent lamp
(ILLUMINATION : ELONGATED SOURCE LIGHT UNIT OR SUPPORT : With means to accommodate additional circuit element : With switch)

Patent 5521806: Vehicle utility/emergency light assembly
(ILLUMINATION : SUPPORTED BY VEHICLE STRUCTURE (E.G., ESPECIALLY ADAPTED FOR VEHICLE) : Portable : Baggage rack)

Patent 5521807: DC-To-DC converter with secondary flyback core reset
(ELECTRIC POWER CONVERSION SYSTEMS : CURRENT CONVERSION : Including D.C.-A.C.-D.C. converter : Having transistorized inverter : Single-ended, separately-driven type : With automatic control of the magnitude of output voltage or current : For forward-type converter : Having particular zero-switching control circuit (e.g., for quasi-resonant converter, etc.))

Patent 5521808: Method and circuitry for controlling start-up characteristics of a magnetic amplifier control circuit
(ELECTRIC POWER CONVERSION SYSTEMS : CURRENT CONVERSION : With starting arrangement : In rectifier systems)

Patent 5521809: Current share circuit for DC to DC converters
(ELECTRIC POWER CONVERSION SYSTEMS : CURRENT CONVERSION : Having plural converters for single conversion : Plural inverters : In parallel)

Patent 5521810: Rectifying saturable reactor
(ELECTRIC POWER CONVERSION SYSTEMS : CURRENT CONVERSION : With condition responsive means to control the output voltage or current : Cooperating separate sensing and control means : For rectifier system : With inductive control means in the line circuit : Saturable reactor (e.g., magnetic amplifier) : Including short protection across a series-connected pair of transistors (e.g., shoot-through protection, etc.))

Patent 5521811: High efficiency AC to DC power conversion system
(ELECTRIC POWER CONVERSION SYSTEMS : CURRENT CONVERSION : With conductive support mounting : 110/220 Volts A.C. in, constant 110 Volts D.C. out)

Patent 5521812: Emergency information apparatus and method
(DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS : SPECIFIC APPLICATION, APPARATUS OR PROCESS : Having specific algorithm)

Patent 5521813: System and method for the advanced prediction of weather impact on managerial planning applications
(DATA PROCESSING: FINANCIAL, BUSINESS PRACTICE, MANAGEMENT, OR COST/PRICE DETERMINATION : AUTOMATED ELECTRICAL FINANCIAL OR BUSINESS PRACTICE OR MANAGEMENT ARRANGEMENT : Operations research : Allocating resources or scheduling for an administrative function : Including a payment switch or gateway)

Patent 5521814: Process optimization and control system that plots inter-relationships between variables to meet an objective
(DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS : SPECIFIC APPLICATION, APPARATUS OR PROCESS : Chemical process control or monitoring system : Having particular operator interface (e.g., teaching box, digitizer, tablet, pendant, dummy arm))

Patent 5521815: Uniform system for verifying and tracking articles of value
(DATA PROCESSING: FINANCIAL, BUSINESS PRACTICE, MANAGEMENT, OR COST/PRICE DETERMINATION : AUTOMATED ELECTRICAL FINANCIAL OR BUSINESS PRACTICE OR MANAGEMENT ARRANGEMENT : Inventory management : Presentation of image or description of sales item (e.g., electronic catalog browsing))

Patent 5521816: Word inflection correction system
(DATA PROCESSING: SPEECH SIGNAL PROCESSING, LINGUISTICS, LANGUAGE TRANSLATION, AND AUDIO COMPRESSION/DECOMPRESSION : LINGUISTICS : Natural language : Storage or retrieval of data)

Patent 5521817: Airborne drone formation control system
(DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION : VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION : Aeronautical vehicle :)

Patent 5521818: Shift solenoid functional test strategy for an automatic transmission control system having electronic shift controllers
(DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION : VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION : Transmission control : Fail-safe control (e.g., preventing a gear shift) : Feedback control (e.g., closed loop))

Patent 5521819: Control systems for drivelines including continuously-variable-ratio transmissions
(DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION : VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION : Transmission control : Adaptive control : Feedback control (e.g., closed loop) : Inner/outer loop)

Patent 5521820: Method for controlling a steering system
(DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION : VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION : Vehicle subsystem or accessory control : Steering control : Feedback, transfer function or proportional and derivative (P& D) control : Inner/outer loop)

Patent 5521821: Suspension control system for automotive vehicle
(DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION : VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION : Vehicle subsystem or accessory control : Suspension control : Modification or correction of route information)

Patent 5521822: Method for controlling actuation of a vehicle safety device using filtered vehicle deceleration data
(DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION : VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION : Vehicle subsystem or accessory control : Control of vehicle safety devices (e.g., airbag, seat-belt, etc.) : Artificial intelligence (e.g., fuzzy logic))

Patent 5521823: Learning control vehicle
(DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION : VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION : Vehicle subsystem or accessory control : With data recording device)

Patent 5521824: Method and apparatus for controlling an engine test apparatus using lead-lag control
(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 : Artificial intelligence (e.g., fuzzy logic))

Patent 5521825: Engine inlet air valve positioning
(DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION : VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION : Vehicle subsystem or accessory control : With data recording device)

Patent 5521826: Travel guiding apparatus for vehicle
(DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION : NAVIGATION : Employing position determining equipment : For use in a map data base system : Digital or programmed data processor)

Patent 5521827: On-board aircraft weighting and center of gravity determing apparatus and method
(DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION : VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION : Determining balance or center of gravity (e.g., load distribution of vehicle) : With course diversion)

Patent 5521828: Unit and method for setup-change instruction and the production system
(DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS : SPECIFIC APPLICATION, APPARATUS OR PROCESS : Product assembly or manufacturing : Design or planning : Rework or engineering change : Knowledge based (e.g., expert system))

Patent 5521829: Path tracing apparatus for a robot
(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 : Tracing or duplicating : Thickness control)

Patent 5521830: Motion controller and synchronous control process therefor
(DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS : SPECIFIC APPLICATION, APPARATUS OR PROCESS : Product assembly or manufacturing : Particular manufactured product or operation : Machining : Digital positioning technique : Alignment of tool or workpiece (e.g., origin or path return) : Repeated machining passes)

Patent 5521831: Method and system for the detection of counterfeit credit or debit cards and other counterfeit objects
(REGISTERS : SYSTEMS CONTROLLED BY DATA BEARING RECORDS : Credit or identification card systems : Price determination)

Patent 5521832: Method for checking an output stage and an electrical load triggered by the output stage for the presence of a fault
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : MEASUREMENT SYSTEM IN A SPECIFIC ENVIRONMENT : Electrical signal parameter measurement system : For electrical fault detection : Liquid level or volume determination)

Patent 5521833: Method for programming programmable integrated circuits
(DATA PROCESSING: DESIGN AND ANALYSIS OF CIRCUIT OR SEMICONDUCTOR MASK : CIRCUIT DESIGN : Programmable integrated circuit (e.g., basic cell, standard cell, macrocell) : PLA, PLD, FPGA, OR MCM)

Patent 5521834: Method and apparatus for calculating dynamic power dissipation in CMOS integrated circuits
(DATA PROCESSING: DESIGN AND ANALYSIS OF CIRCUIT OR SEMICONDUCTOR MASK : CIRCUIT DESIGN : Testing or evaluating : Design verification (e.g., wiring line capacitance, fan-out checking, minimum path width) : Timing analysis (e.g., delay time, path delay, latch timing) :)

Patent 5521835: Method for programming an FPLD using a library-based technology mapping algorithm
(DATA PROCESSING: DESIGN AND ANALYSIS OF CIRCUIT OR SEMICONDUCTOR MASK : CIRCUIT DESIGN : Programmable integrated circuit (e.g., basic cell, standard cell, macrocell) : PLA, PLD, FPGA, OR MCM)

Patent 5521836: Method for determining instance placements in circuit layouts
(DATA PROCESSING: DESIGN AND ANALYSIS OF CIRCUIT OR SEMICONDUCTOR MASK : CIRCUIT DESIGN : Floorplanning : Constraint-based placement (e.g., critical block assignment, delay limits, wiring capacitance) : Timing analysis (e.g., delay time, path delay, latch timing))

Patent 5521837: Timing driven method for laying out a user's circuit onto a programmable integrated circuit device
(DATA PROCESSING: DESIGN AND ANALYSIS OF CIRCUIT OR SEMICONDUCTOR MASK : CIRCUIT DESIGN : Floorplanning : Constraint-based placement (e.g., critical block assignment, delay limits, wiring capacitance) : Timing analysis (e.g., delay time, path delay, latch timing))

Patent 5521838: Power supply
(DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS : SPECIFIC APPLICATION, APPARATUS OR PROCESS : Electrical power generation or distribution system : Power allocation management (e.g., load adding/shedding) : Abnormal phase, waveform, or polarity condition)

Patent 5521839: Deep level transient spectroscopy (DLTS) system and method
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : MEASUREMENT SYSTEM IN A SPECIFIC ENVIRONMENT : Electrical signal parameter measurement system : Voltage or current : Including related electrical parameter : Including communication means)

Patent 5521840: Diagnostic system responsive to learned audio signatures
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : MEASUREMENT SYSTEM : Performance or efficiency evaluation : Diagnostic analysis : By radiant energy (e.g., X-ray, light))

Patent 5521841: Browsing contents of a given video sequence
(DATA PROCESSING: PRESENTATION PROCESSING OF DOCUMENT, OPERATOR INTERFACE PROCESSING, AND SCREEN SAVER DISPLAY PROCESSING : OPERATOR INTERFACE (E.G., GRAPHICAL USER INTERFACE) : On screen video or audio system interface : For video segment editing or sequencing : Video parameter control)

Patent 5521842: Diagnostic device and a data communication system for use with the diagnostic device
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: MULTICOMPUTER DATA TRANSFERRING : COMPUTER NETWORK MANAGING : Computer network monitoring :)

Patent 5521843: System for and method of recognizing and tracking target mark
(DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS : SPECIFIC APPLICATION, APPARATUS OR PROCESS : Robot control : Specific enhancing or modifying technique (e.g., adaptive control) : Programmed data (e.g., path) modified by sensed data : Movable (e.g., rotatable))

Patent 5521844: Printing press monitoring and advising system
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : MEASUREMENT SYSTEM : Performance or efficiency evaluation : Diagnostic analysis : Cause or fault identification : Odometer)

Patent 5521845: Analytical system for remote transmission of data
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : MEASUREMENT SYSTEM IN A SPECIFIC ENVIRONMENT : Mechanical measurement system : Specific signal data processing)

Patent 5521846: Device for measuring parameters, in particular parameters relating to aircraft or vehicle wheels
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : CALIBRATION OR CORRECTION SYSTEM : Zeroing (e.g., null) : Quality control)

Patent 5521847: System and method for determining airfoil characteristics from coordinate measuring machine probe center data
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : MEASUREMENT SYSTEM : Orientation or position : 3D position : Specific mathematical operation performed)

Patent 5521848: Computer based system timer (CBST)
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : MEASUREMENT SYSTEM : Performance or efficiency evaluation : Probability determination)

Patent 5521849: System for operating application software in a safety critical environment
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : TESTING SYSTEM : Of circuit : Including program initialization (e.g., program loading) or code selection (e.g., program creation) : Frequency)

Patent 5521850: Method and apparatus for calibration and controlling multiple heaters
(DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS : SPECIFIC APPLICATION, APPARATUS OR PROCESS : Specific application of temperature responsive control system : Power supply regulation operation)

Patent 5521851: Noise reduction method and apparatus
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : MEASUREMENT SYSTEM : Measured signal processing : Signal extraction or separation (e.g., filtering) : For noise removal or suppression : By mathematical attenuation (e.g., weighting, averaging) : Subtracting noise component :)

Patent 5521852: Method and system for designing lighting installations
(DATA PROCESSING: STRUCTURAL DESIGN, MODELING, SIMULATION, AND EMULATION : STRUCTURAL DESIGN :)

Patent 5521853: Method and system for designing lighting installations
(DATA PROCESSING: STRUCTURAL DESIGN, MODELING, SIMULATION, AND EMULATION : STRUCTURAL DESIGN :)

Patent 5521854: Power-saving control for a control unit in a computer system
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: SUPPORT : COMPUTER POWER CONTROL : Power conservation : Programmable calculator with power saving feature : Including generation of associated coded record)

Patent 5521855: Multiplying circuit
(ELECTRICAL COMPUTERS: ARITHMETIC PROCESSING AND CALCULATING : ELECTRICAL DIGITAL CALCULATING COMPUTER : Particular function performed : Arithmetical operation : Multiplication : Binary : Repeated addition : Multiple digit :)

Patent 5521856: Multiplier capable of calculating double precision, single precision, inner product and multiplying complex
(ELECTRICAL COMPUTERS: ARITHMETIC PROCESSING AND CALCULATING : ELECTRICAL DIGITAL CALCULATING COMPUTER : Particular function performed : Arithmetical operation : Multiplication : Binary : Repeated addition : Multiple digit :)

Patent 5521857: Process and device for the analog convolution of images
(ELECTRICAL COMPUTERS: ARITHMETIC PROCESSING AND CALCULATING : ELECTRICAL ANALOG CALCULATING COMPUTER : Particular function performed : Correlation or convolution : Of multidimensional data : Binary)

Patent 5521858: Semiconductor device
(STATIC INFORMATION STORAGE AND RETRIEVAL : FLOATING GATE : Multiple values (e.g., analog) : Overlays)

Patent 5521859: Semiconductor memory device having thin film transistor and method of producing the same
(STATIC INFORMATION STORAGE AND RETRIEVAL : SYSTEMS USING PARTICULAR ELEMENT : Capacitors : Same size apertures)

Patent 5521860: CMOS static memory
(STATIC INFORMATION STORAGE AND RETRIEVAL : SYSTEMS USING PARTICULAR ELEMENT : Flip-flop (electrical) : Nuclear induction or spin echo)

Patent 5521861: High-speed high-density SRAM cell
(STATIC INFORMATION STORAGE AND RETRIEVAL : SYSTEMS USING PARTICULAR ELEMENT : Flip-flop (electrical) : Complementary : Biax)

Patent 5521862: Apparatus and method for storing information in magnetic fields
(STATIC INFORMATION STORAGE AND RETRIEVAL : SYSTEMS USING PARTICULAR ELEMENT : Superconductive : Complementary)

Patent 5521863: Non-volatile semiconductor memory device incorporating data latch and address counter for page mode programming
(STATIC INFORMATION STORAGE AND RETRIEVAL : FLOATING GATE : Particular connection : Bank or block architecture : Parallel row lines (e.g., page mode) :)

Patent 5521864: Non-volatile semiconductor memory device allowing fast verifying operation
(STATIC INFORMATION STORAGE AND RETRIEVAL : FLOATING GATE : Particular biasing : Reference signal (e.g., dummy cell) : Verify signal :)

Patent 5521865: Non-volatile semiconductor memory device for storing multi-value data
(STATIC INFORMATION STORAGE AND RETRIEVAL : FLOATING GATE : Particular biasing : Reference signal (e.g., dummy cell) : Verify signal :)

Patent 5521866: Non-volatile semiconductor memory device having floating gate
(STATIC INFORMATION STORAGE AND RETRIEVAL : FLOATING GATE : Particular biasing : Erase : Verify signal)

Patent 5521867: Adjustable threshold voltage conversion circuit
(STATIC INFORMATION STORAGE AND RETRIEVAL : FLOATING GATE : Particular biasing : Erase : Flash : Radiation erasure)

Patent 5521868: NOR-type non-volatile memory using tunnel current and having selective re-write
(STATIC INFORMATION STORAGE AND RETRIEVAL : FLOATING GATE : Particular biasing : Reference signal (e.g., dummy cell) : Verify signal :)

Patent 5521869: Semiconductor memory with improved transfer gate drivers
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ/WRITE CIRCUIT : Semiconductive)

Patent 5521870: Semiconductor memory device having a coincidence detection circuit and its test method
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ/WRITE CIRCUIT : Including signal comparison : Four or more devices per bit)

Patent 5521871: Voltage boosting circuit of a semiconductor memory circuit
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ/WRITE CIRCUIT : Including level shift or pull-up circuit : Four or more devices per bit)

Patent 5521872: Apparatus and method for control of a first input first output type device
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ/WRITE CIRCUIT : With shift register : Four or more devices per bit)

Patent 5521873: Semiconductor dynamic random access memory
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ/WRITE CIRCUIT : Signals : Strobe : Variable threshold)

Patent 5521874: High speed differential to single ended sense amplifier
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ/WRITE CIRCUIT : Noise suppression : Differential sensing : Sense/inhibit)

Patent 5521875: Dynamic single-ended sense amp improvement with charge share assist
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ/WRITE CIRCUIT : Noise suppression : Differential sensing : Sense/inhibit)

Patent 5521876: FIFO memory device capable of writing contiguous data into rows
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ/WRITE CIRCUIT : Serial read/write : Holographic)

Patent 5521877: Serial random access memory device capable of reducing peak current through subword data register
(STATIC INFORMATION STORAGE AND RETRIEVAL : ADDRESSING : Multiple port access : Alternate addressing (e.g., even/odd))

Patent 5521878: Clock synchronous semiconductor memory device
(STATIC INFORMATION STORAGE AND RETRIEVAL : ADDRESSING : Sync/clocking : Magnetic)

Patent 5521879: Synchronous dynamic random acess memory
(STATIC INFORMATION STORAGE AND RETRIEVAL : ADDRESSING : Sync/clocking : Magnetic)

Patent 5521880: Integrated circuit memory having control circuitry for shared data bus
(STATIC INFORMATION STORAGE AND RETRIEVAL : ADDRESSING : Sync/clocking : Transition detection : Magnetic)

Patent 5521881: Method of processing seismic data having multiple reflection noise
(COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES : SEISMIC PROSPECTING : Offshore prospecting : Signal processing : Reverberation removal :)

Patent 5521882: Measurement of formation characteristics using acoustic borehole tool having sources of different frequencies
(COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES : SEISMIC PROSPECTING : Well logging : Amplitude measurement : Frequency dependent determination :)

Patent 5521883: Method of remotely determining the three-dimensional velocity of a fluid such as air or water
(COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES : ECHO SYSTEMS : Speed determination : By doppler effect : Multiplex)

Patent 5521884: Vibrating element transducer
(COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES : SIGNAL TRANSDUCERS : Animal control)

Patent 5521885: Hydrophone arrangement
(COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES : SIGNAL TRANSDUCERS : Underwater type : Plural transducer array : Line array : Frequency)

Patent 5521886: Diaphragm for use with an electro-acoustic transducer and method of producing the same
(COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES : SIGNAL TRANSDUCERS : Underwater type : Transducer with diaphragm : Pressure compensating means)

Patent 5521887: Time transfer system
(HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES : PLURAL TIMEPIECE SYSTEM OR SYSTEM DEVICE (E.G., PRIMARY OR SECONDARY CLOCKS) : With wireless synchronization : With jumper spring)

Patent 5521888: Clock having a suspended dial train with pivotally coupled arbors
(HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES : DISPLAY TRAINS : With transistor)

Patent 5521889: Watch having a fluid-tight rotary crystal or crystal-bezel unit
(HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES : CASES : With bezel or crystal details : Antimagnetic shielding)

Patent 5521890: Push-piece crown for a timepiece
(HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES : CROWN OR STEM DETAILS : With support details)

Patent 5521891: Speed detection apparatus, speed control motor, and track jump control circuit
(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 : While track jumping or crossing : Means to mask or shield a portion of the beam)

Patent 5521892: Closed-loop control system and servo device of optical disk unit
(DYNAMIC INFORMATION STORAGE OR RETRIEVAL : WITH SERVO POSITIONING OF TRANSDUCER ASSEMBLY OVER TRACK COMBINED WITH INFORMATION SIGNAL PROCESSING : Optical servo system : Servo loop gain/switching control : Variable gain : Recording)

Patent 5521893: Data recording apparatus
(DYNAMIC INFORMATION STORAGE OR RETRIEVAL : CONTROL OF STORAGE OR RETRIEVAL OPERATION BY A CONTROL SIGNAL TO BE RECORDED OR REPRODUCED : Mechanism control by the control signal : During initialization or start-up or changing system mode : By program or address signal)

Patent 5521894: Optical disc dubbing apparatus having user erase capability
(DYNAMIC INFORMATION STORAGE OR RETRIEVAL : CONTROL OF STORAGE OR RETRIEVAL OPERATION BY A CONTROL SIGNAL TO BE RECORDED OR REPRODUCED : Control of initiation of pause mode : Arithmetic operation using plural photodetectors)

Patent 5521895: Optical disk reproducing apparatus for controlling the rotational speed of a spindle motor between a CLV control and a CAV control
(DYNAMIC INFORMATION STORAGE OR RETRIEVAL : CONTROL OF STORAGE OR RETRIEVAL OPERATION BY A CONTROL SIGNAL TO BE RECORDED OR REPRODUCED : Mechanism control by the control signal : Control of relative motion producing mechanism : Responsive to change in transduced location : Including static memory write address controlling)

Patent 5521896: Adaptive system for optimizing disk drive power consumption
(DYNAMIC INFORMATION STORAGE OR RETRIEVAL : CONDITION INDICATING, MONITORING, OR TESTING : Including radiation storage or retrieval : Having abnormal condition indicating : System disturbance : Defect)

Patent 5521897: Double beam optical head
(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 5521898: Apparatus for insertion of information into existing information record
(TELEVISION SIGNAL PROCESSING FOR DYNAMIC RECORDING OR REPRODUCING : PROCESSING OF TELEVISION SIGNAL FOR DYNAMIC RECORDING OR REPRODUCING : Compressing in recording or decompressing in reproducing : Digital compressing : Including television camera)

Patent 5521899: Optical disk apparatus for mechanically restricting the distance between an optical disk and an optical head
(DYNAMIC OPTICAL INFORMATION STORAGE OR RETRIEVAL : DYNAMIC MECHANISM OPTICAL SUBSYSTEM : Having power driven optical transducer assembly : Arcuate transducer assembly movement : Sliding mechanism)

Patent 5521900: Disk having a lead-in region containing display data and an apparatus for recording and/or reproducing the disc
(DYNAMIC INFORMATION STORAGE OR RETRIEVAL : CONDITION INDICATING, MONITORING, OR TESTING : Including radiation storage or retrieval : Of record carrier : By detection of storage medium incident radiation : Defect)

Patent 5521901: Re-writable phase change type optical disk with suppressed recording mark distortion
(DYNAMIC INFORMATION STORAGE OR RETRIEVAL : STORAGE MEDIUM STRUCTURE : Optical track structure (e.g., phase or diffracting structure, etc.) : Erasable, reversible or re-recordable : Disc holding or locating (e.g., spindle structure))

Patent 5521902: Location identification in a communications signalling network
(MULTIPLEX COMMUNICATIONS : DIAGNOSTIC TESTING (OTHER THAN SYNCHRONIZATION) : Path check : Having a dedicated test line or channel)

Patent 5521903: Port system for interfacing digital PBX to digital transmission facility
(MULTIPLEX COMMUNICATIONS : DIAGNOSTIC TESTING (OTHER THAN SYNCHRONIZATION) : Path check : Having a dedicated test line or channel)

Patent 5521904: Method and apparatus for testing a base station in a time division multiple access radio communications system
(MULTIPLEX COMMUNICATIONS : DIAGNOSTIC TESTING (OTHER THAN SYNCHRONIZATION) : Loopback : Having a dedicated test line or channel)

Patent 5521905: Adaptive traffic control apparatus and method for controlling connection of arriving calls
(MULTIPLEX COMMUNICATIONS : DATA FLOW CONGESTION PREVENTION OR CONTROL : Control of data admission to the network : Based on data flow rate measurement : Using a spare channel)

Patent 5521906: Method and apparatus for updating carrier channel allocations
(MULTIPLEX COMMUNICATIONS : DIAGNOSTIC TESTING (OTHER THAN SYNCHRONIZATION) : Determination of communication parameters : Having dedicated test line or channel)

Patent 5521907: Method and apparatus for non-intrusive measurement of round trip delay in communications networks
(MULTIPLEX COMMUNICATIONS : DIAGNOSTIC TESTING (OTHER THAN SYNCHRONIZATION) : Determination of communication parameters : Measurement of flow rate of messages having an address header : ATM least cost routing)

Patent 5521908: Method and apparatus for providing reduced complexity echo cancellation in a multicarrier communication system
(MULTIPLEX COMMUNICATIONS : DUPLEX : Transmit/receive interaction control : Echo suppression or cancellation : Using summation of conferee signals)

Patent 5521909: Frame relay management system
(MULTIPLEX COMMUNICATIONS : PATHFINDING OR ROUTING : Switching a message which includes an address header : Having a plurality of nodes performing distributed switching : Bridge or gateway between networks : Bridge between bus systems : At least one bus is a ring network : Ring or loop forms backbone for interconnecting other networks :)

Patent 5521910: Method for determining a best path between two nodes
(MULTIPLEX COMMUNICATIONS : NETWORK CONFIGURATION DETERMINATION : Using a particular learning algorithm or technique : Spanning tree : ATM least cost routing)

Patent 5521911: Hanger for displaying eyeglasses
(OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING : SPECTACLES AND EYEGLASSES : Combined : Neck retainers)

Patent 5521912: Time slot shifter enhances data concentration
(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 5521913: Distributed processing ethernet switch with adaptive cut-through switching
(MULTIPLEX COMMUNICATIONS : PATHFINDING OR ROUTING : Switching a message which includes an address header : Particular switching network arrangement)

Patent 5521914: Switched access to frame relay
(MULTIPLEX COMMUNICATIONS : PATHFINDING OR ROUTING : Combined circuit switching and packet switching : Synchronization)

Patent 5521915: Synchronous digital channel cell assembly and disassembly device, synchronous digital channel switching center, and asynchronous digital
(MULTIPLEX COMMUNICATIONS : PATHFINDING OR ROUTING : Switching a message which includes an address header : Message transmitted using fixed length packets (e.g., ATM cells) : Connection identifier assignment : Based on traffic contract (including using setup messages, QoS, delay/bandwidth requirement))

Patent 5521916: Implementation of selective pushout for space priorities in a shared memory asynchronous transfer mode switch
(MULTIPLEX COMMUNICATIONS : PATHFINDING OR ROUTING : Switching a message which includes an address header : Queuing arrangement : Having both input and output queuing : Contention resolution for output : At least one bus is a ring network)

Patent 5521917: Asynchronous transfer mode switching system capable of reducing capacity of management table
(MULTIPLEX COMMUNICATIONS : PATHFINDING OR ROUTING : Switching a message which includes an address header : Message transmitted using fixed length packets (e.g., ATM cells) : Centralized switching : Employing logical addressing for routing (e.g., VP or VC) : Data memory addressing)

Patent 5521918: Adaptive bit stream demultiplexing apparatus in a decoding system
(MULTIPLEX COMMUNICATIONS : PATHFINDING OR ROUTING : Store and forward : Space switching)

Patent 5521919: Method and apparatus for providing switch-based features
(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 5521920: Time-division multiplexer with reduced delay time
(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 5521921: Data communications method and apparatus
(MULTIPLEX COMMUNICATIONS : COMMUNICATION TECHNIQUES FOR INFORMATION CARRIED IN PLURAL CHANNELS : Adaptive : Frame length : Message having an address header : On ring or loop)

Patent 5521922: Data demultiplexer
(MULTIPLEX COMMUNICATIONS : COMMUNICATION TECHNIQUES FOR INFORMATION CARRIED IN PLURAL CHANNELS : Combining or distributing information via time channels : Demultiplexing single input channel to plural output channels : Different rate output channels : Multiple levels of multiplexing to form a multiplex hierarchy)

Patent 5521923: Method and facility for temporarily storing data packets, and exchange with such a facility
(MULTIPLEX COMMUNICATIONS : PATHFINDING OR ROUTING : Switching a message which includes an address header : Queuing arrangement : Having a signaling feature)

Patent 5521924: Telephone subscriber accomodation system in a broadband network
(MULTIPLEX COMMUNICATIONS : COMMUNICATION TECHNIQUES FOR INFORMATION CARRIED IN PLURAL CHANNELS : Adaptive : Converting between protocols : On ring or loop network)

Patent 5521925: Method and apparatus for providing mixed voice and data communication in a time division multiple access radio communication system
(MULTIPLEX COMMUNICATIONS : COMMUNICATION OVER FREE SPACE : Having a plurality of contiguous regions served by respective fixed stations : Channel assignment : Combining or distributing information via time channels : Multiple access (e.g., TDMA) : Using multiple antennas at a station)

Patent 5521926: Method and apparatus for improved message reception at a fixed system receiver
(MULTIPLEX COMMUNICATIONS : COMMUNICATION OVER FREE SPACE : Combining or distributing information via time channels : Multiple access (e.g., TDMA) : Combining or distributing information via time channels)

Patent 5521927: Elementary stream packetizing unit for MPEG-2 system
(MULTIPLEX COMMUNICATIONS : COMMUNICATION TECHNIQUES FOR INFORMATION CARRIED IN PLURAL CHANNELS : Assembly or disassembly of messages having address headers : Transmission of a single message having multiple packets)

Patent 5521928: Time slot exchanger mechanism in a network for data communication having isochronous capability
(MULTIPLEX COMMUNICATIONS : PATHFINDING OR ROUTING : Through a circuit switch : Switching control : Bus switch : Multiple access (e.g., TDMA))

Patent 5521929: Robust and redundant physical block identification scheme for data storage devices
(ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY : PULSE OR DATA ERROR HANDLING : Digital data error correction : Forward correction by block code : Memory access : Dynamic data storage : Error checking code)

Patent 5521930: Device for injection-seeding, frequency-shifting, and q-switching a laser source
(COHERENT LIGHT GENERATORS : PARTICULAR BEAM CONTROL DEVICE : Q-switch : Acousto-optic :)

Patent 5521931: Nonmonolithic arrays of accurately positioned diode lasers
(COHERENT LIGHT GENERATORS : PARTICULAR TEMPERATURE CONTROL : Heat sink : Frequency)

Patent 5521932: Scalable side-pumped solid-state laser
(COHERENT LIGHT GENERATORS : PARTICULAR TEMPERATURE CONTROL : Heat sink : Frequency)

Patent 5521933: Backmatched laser diode driver
(COHERENT LIGHT GENERATORS : PARTICULAR COMPONENT CIRCUITRY : For driving or controlling laser : Frequency)

Patent 5521934: Materials for II-VI lasers
(COHERENT LIGHT GENERATORS : PARTICULAR ACTIVE MEDIA : Semiconductor : Injection : Particular confinement layer :)

Patent 5521935: Strained superlattice light emitting device
(COHERENT LIGHT GENERATORS : PARTICULAR ACTIVE MEDIA : Semiconductor : Injection : Particular confinement layer : With strained layer :)

Patent 5521936: Radial laser diode array
(COHERENT LIGHT GENERATORS : PARTICULAR PUMPING MEANS : Pumping with optical or radiant energy : Semiconductor : Electron beam)

Patent 5521937: Multicarrier direct sequence spread system and method
(PULSE OR DIGITAL COMMUNICATIONS : SPREAD SPECTRUM : Direct sequence : End-to-end transmission system : Having multi-receiver or interference cancellation :)

Patent 5521938: Apparatus for performing frequency conversion in a communication system
(PULSE OR DIGITAL COMMUNICATIONS : SPREAD SPECTRUM : Direct sequence : Transmitter : Having specific signaling for code synchronization)

Patent 5521939: Timing reproduction device
(PULSE OR DIGITAL COMMUNICATIONS : TRANSCEIVERS : Modems (data sets) : Phase locked loop)

Patent 5521940: Method and device for the compression and decompression of data in a transmission system
(PULSE OR DIGITAL COMMUNICATIONS : BANDWIDTH REDUCTION OR EXPANSION : Automatic)

Patent 5521941: Automatic threshold control for multi-level signals
(PULSE OR DIGITAL COMMUNICATIONS : MULTILEVEL : With threshold level : Phase shift keying)

Patent 5521942: Method for increasing the dynamic range of a signal in a simultaneous voice and data system by the use of overlapping signal point regions
(PULSE OR DIGITAL COMMUNICATIONS : TRANSMITTERS : Synchronized)

Patent 5521943: COFDM combined encoder modulation for digital broadcasting sound and video with PSK, PSK/AM, and QAM techniques
(PULSE OR DIGITAL COMMUNICATIONS : TRANSMITTERS : Synchronized)

Patent 5521944: Circuit for a demodulator for a radio data signal in a radio receiver
(PULSE OR DIGITAL COMMUNICATIONS : RECEIVERS : Angle modulation : Phase shift keying : Including switching or gating (digital circuits))

Patent 5521945: Reduced complexity EPR4 post-processor for sampled data detection
(PULSE OR DIGITAL COMMUNICATIONS : RECEIVERS : Particular pulse demodulator or detector : Maximum likelihood decoder or viterbi decoder : Separate mark and space channels)

Patent 5521946: Multi-phase filter/DAC
(PULSE OR DIGITAL COMMUNICATIONS : RECEIVERS : Interference or noise reduction : By filtering (e.g., digital) : Separate mark and space channels)

Patent 5521947: Phase detection reset in phase locked loops used for direct VCO modulation
(PULSE OR DIGITAL COMMUNICATIONS : SYNCHRONIZERS : Phase displacement, slip or jitter correction : Phase locking : With frequency detector and phase detector : More than two phases)

Patent 5521948: Frequency synthesizer
(PULSE OR DIGITAL COMMUNICATIONS : SYNCHRONIZERS : Phase displacement, slip or jitter correction : Phase locking : Phase locked loop : More than two phases)

Patent 5521949: Synchronization scheme for digital communications systems transporting data at a customer-controlled rate
(PULSE OR DIGITAL COMMUNICATIONS : MISCELLANEOUS : Phase displacement, slip or jitter correction)

Patent 5521950: Tool for unlatching control rod without removing fuel support
(INDUCED NUCLEAR REACTIONS: PROCESSES, SYSTEMS, AND ELEMENTS : HANDLING OF FISSION REACTOR COMPONENT STRUCTURE WITHIN REACTOR SYSTEM : By particular instrumentation circuitry)

Patent 5521951: Reactor core shroud repair with tapered pins
(INDUCED NUCLEAR REACTIONS: PROCESSES, SYSTEMS, AND ELEMENTS : HANDLING OF FISSION REACTOR COMPONENT STRUCTURE WITHIN REACTOR SYSTEM : By particular instrumentation circuitry)

Patent 5521952: Pulse counter circuit and pulse signal changeover circuit therefor
(ELECTRICAL PULSE COUNTERS, PULSE DIVIDERS, OR SHIFT REGISTERS: CIRCUITS AND SYSTEMS : SYSTEMS : Particular input circuit : Multiplication or division by a fraction)

Patent 5521953: Shift register with transfer gate-inverter arrangement providing stable operation
(ELECTRICAL PULSE COUNTERS, PULSE DIVIDERS, OR SHIFT REGISTERS: CIRCUITS AND SYSTEMS : SHIFT REGISTER : Compensating for or preventing signal deterioration : In charge-coupled device)

Patent 5521954: Method and apparatus for improved accuracy in computed tomography cone-beam imaging
(X-RAY OR GAMMA RAY SYSTEMS OR DEVICES : SPECIFIC APPLICATION : Computerized tomography : Object responsive :)

Patent 5521955: Method for quantitatively determining bone mineral mass by CT system
(X-RAY OR GAMMA RAY SYSTEMS OR DEVICES : SPECIFIC APPLICATION : Computerized tomography : With tissue equivalent material : Fan beam translation)

Patent 5521956: Medical imaging device using low-dose X- or gamma ionizing radiation
(X-RAY OR GAMMA RAY SYSTEMS OR DEVICES : BEAM CONTROL : Scanner : Rotary)

Patent 5521957: X-ray imaging system
(X-RAY OR GAMMA RAY SYSTEMS OR DEVICES : SOURCE SUPPORT : Including movable source : With mobile support : With film clamping)

Patent 5521958: Telecommunications test system including a test and trouble shooting expert system
(TELEPHONIC COMMUNICATIONS : DIAGNOSTIC TESTING, MALFUNCTION INDICATION, OR ELECTRICAL CONDITION MEASUREMENT : Using portable test set (e.g., handset type) : Of switchboard element condition (e.g., lamp))

Patent 5521959: Programmable source for supplying controllably variable AC/DC voltage output for telephone line measurement apparatus
(TELEPHONIC COMMUNICATIONS : DIAGNOSTIC TESTING, MALFUNCTION INDICATION, OR ELECTRICAL CONDITION MEASUREMENT : Testing of subscriber loop or terminal : By automatic testing sequence (e.g., programmable, test, script or test call generation program) : Noise)

Patent 5521960: Interactive telephonic device for `VCO` relay communication
(TELEPHONIC COMMUNICATIONS : INCLUDING AID FOR HANDICAPPED USER (E.G., VISUAL, TACTILE, HEARING AID COUPLING) : With automatic dialing or transmission of recorded audio message)

Patent 5521961: Mobility management method for delivering calls in a microcellular network
(TELECOMMUNICATIONS : RADIOTELEPHONE SYSTEM : Zoned or cellular telephone system : Handoff : Between macro and micro cells : Based on priority)

Patent 5521962: Temporary storage of authentication information throughout a personal communication system
(TELECOMMUNICATIONS : RADIOTELEPHONE SYSTEM : Zoned or cellular telephone system : Call routing (e.g., to prevent backhaul, routing efficiency, least cost, or alternate routing) : Between macro and micro cells)

Patent 5521963: System and method for using integrated services digital networks (ISDN) and the call appearance call handling (CACH) feature of electronic key
(TELECOMMUNICATIONS : RADIOTELEPHONE SYSTEM : Zoned or cellular telephone system : Handoff : Mobile assisted or initiated : Based on priority)

Patent 5521964: Visual message waiting indication in a telephone voice message system
(TELEPHONIC COMMUNICATIONS : AUDIO MESSAGE STORAGE, RETRIEVAL, OR SYNTHESIS : Indication or notification of message : Including data compression)

Patent 5521965: Apparatus and method for handling busy calls in telephone network
(TELEPHONIC COMMUNICATIONS : SPECIAL SERVICES : Repetitive call attempts (e.g., camp-on-busy, retry) : Ringing signal (e.g. having a predetermined cadence or distinctive ring))

Patent 5521966: Method and system for mediating transactions that use portable smart cards
(TELEPHONIC COMMUNICATIONS : TELEPHONE LINE OR SYSTEM COMBINED WITH DIVERSE ELECTRICAL SYSTEM OR SIGNALLING (E.G., COMPOSITE) : Credit authorization : At switching station : Message storage in centralized location (e.g., central office, PBX, etc.))

Patent 5521967: Method for monitoring telephone call progress
(TELEPHONIC COMMUNICATIONS : TELEPHONE LINE OR SYSTEM COMBINED WITH DIVERSE ELECTRICAL SYSTEM OR SIGNALLING (E.G., COMPOSITE) : To produce visual-graphic copy (e.g., facsimile) : Call signal generation (e.g., auto-dial) : Having acoustic link)

Patent 5521968: Call charging method in radio telephone system and radio telephone system employing the same method
(TELECOMMUNICATIONS : RADIOTELEPHONE SYSTEM : Usage measurement : Location monitoring)

Patent 5521969: Telephone caller identity delivery system and method with enhanced caller privacy
(TELEPHONIC COMMUNICATIONS : RECEPTION OF CALLING INFORMATION AT SUBSTATION IN WIRELINE COMMUNICATIONS SYSTEM : Blocking caller ID transmission : At subscriber)

Patent 5521970: Arrangement for extending call-coverage across a network of nodes
(TELEPHONIC COMMUNICATIONS : PLURAL EXCHANGE NETWORK OR INTERCONNECTION : With interexchange network routing : Alternate routing : Smart card)

Patent 5521971: Communication network control method
(TELEPHONIC COMMUNICATIONS : PLURAL EXCHANGE NETWORK OR INTERCONNECTION : With interexchange network routing : Algorithm (e.g., software, computer program) : Parameter optimization or enhancement (e.g., capacity or bandwidth) : Restoration (e.g., backup, recovery))

Patent 5521972: Communications system reconfigurable with reduced network configuration data
(TELEPHONIC COMMUNICATIONS : PLURAL EXCHANGE NETWORK OR INTERCONNECTION : Interexchange signalling : Signalling path distinct from trunk (e.g., CCIS) : Having signalling to operator)

Patent 5521973: Transport apparatus for large network telecommunication equipment
(TELEPHONIC COMMUNICATIONS : CENTRALIZED SWITCHING SYSTEM : Structure of equipment : Equipment mounting or support : Allowing movement of equipment (e.g., movable, modular) : Coordinate system (e.g., X-Y))

Patent 5521974: Line in-use indicator for a telephone set and facsimile machine connected to a single telephone line
(TELEPHONIC COMMUNICATIONS : SUPERVISORY OR CONTROL LINE SIGNALING : Using line or loop condition detection (e.g., line circuit) : Busy test or make busy : Visual indication of incoming call (e.g., LED or light bulb))

Patent 5521975: Telephone terminal device with means for detecting abandonment of call
(TELEPHONIC COMMUNICATIONS : SUPERVISORY OR CONTROL LINE SIGNALING : Using line or loop condition detection (e.g., line circuit) : For ring trip or polarity reversal detection : Visual indication of incoming call (e.g., LED or light bulb))

Patent 5521976: Modular subscriber device
(TELEPHONIC COMMUNICATIONS : SUBSTATION OR TERMINAL CIRCUITRY : Wire distribution : Suppression (e.g., antisidetone))

Patent 5521977: High density telephone network interface unit
(TELEPHONIC COMMUNICATIONS : SUBSCRIBER LINE OR TRANSMISSION LINE INTERFACE : Network interface device (NLD) : Connection block or module : Automatic adjustment)

Patent 5521978: Digital signal processing apparatus
(CRYPTOGRAPHY : VIDEO CRYPTOGRAPHY : Video electric signal modification (e.g., scrambling) : Image data converted to digital before modification : Having compression (e.g., MPEG) :)

Patent 5521979: Packet video signal inverse transport system
(CRYPTOGRAPHY : VIDEO CRYPTOGRAPHY : Video electric signal modification (e.g., scrambling) : Plural video stream multiplexing :)

Patent 5521980: Privacy-protected transfer of electronic information
(CRYPTOGRAPHY : PARTICULAR ALGORITHMIC FUNCTION ENCODING : Public key : Plural generators)

Patent 5521981: Sound positioner
(ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES : BINAURAL AND STEREOPHONIC : Pseudo stereophonic : AM or both AM and angle final modulation)

Patent 5521982: Electronic device for the generation of acoustic spatial effects
(ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES : BINAURAL AND STEREOPHONIC : Stereo speaker arrangement : Stereo earphone : Enclosure adaptation)

Patent 5521983: Speaker system for use in high background noise environments
(ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES : INCLUDING FREQUENCY CONTROL : Feedforward circuitry for transducer compensation)

Patent 5521984: System for registration, identification and verification of items utilizing unique intrinsic features
(IMAGE ANALYSIS : PATTERN RECOGNITION : Template matching (e.g., specific devices that determine the best match) : Waveform analysis)

Patent 5521985: Apparatus for recognizing machine generated or handprinted text
(IMAGE ANALYSIS : IMAGE SEGMENTATION : Distinguishing text from other regions : Alphanumerics)

Patent 5521986: Compact data input device
(IMAGE ANALYSIS : PATTERN RECOGNITION : On-line recognition of handwritten characters : With separate timing or alignment marks)

Patent 5521987: Image processing method and apparatus employing gray scale images having fewer bits per pixel and gray scale image restoration using small areas
(IMAGE ANALYSIS : PATTERN RECOGNITION : Template matching (e.g., specific devices that determine the best match) : Electronic template : Comparator : Topological properties (e.g., number of holes in a pattern, connectivity, etc.))

 

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