Patents 5668725 - 5668980

 

 

Patent 5668725: Internal combustion engine misfire detection
(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 : Vibration, roughness, knock : Detection of O2 concentration)

Patent 5668726: Data backup apparatus utilized in an electronic control system and data backup method performed in the data backup apparatus
(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 : Specific memory or interfacing device : Detection of O2 concentration)

Patent 5668727: Powertrain torque control method
(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 : Control of air/fuel ratio or fuel injection : Controlling timing :)

Patent 5668728: Removable deflectors for bwr fuel with steam vents and part-length rods
(INDUCED NUCLEAR REACTIONS: PROCESSES, SYSTEMS, AND ELEMENTS : FUEL COMPONENT STRUCTURE : Plural fuel segments or elements : In pack or bundle : With coolant flow path deflecting means : With fuel element contacting protuberance or projection)

Patent 5668729: Franking machine
(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 5668730: Method for automatically generating chain stitches
(DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS : SPECIFIC APPLICATION, APPARATUS OR PROCESS : Product assembly or manufacturing : Particular manufactured product or operation : Textile : Sewing : Embroidering :)

Patent 5668731: Method and apparatus for plotting a trace pattern on the tread band of a tire
(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 : Laser : Thickness control)

Patent 5668732: Method for estimating power consumption of a cyclic sequential electronic circuit
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : MEASUREMENT SYSTEM IN A SPECIFIC ENVIRONMENT : Electrical signal parameter measurement system : Power parameter : Fault location)

Patent 5668733: Substrate processing apparatus and method
(DATA PROCESSING: DESIGN AND ANALYSIS OF CIRCUIT OR SEMICONDUCTOR MASK : DESIGN OF SEMICONDUCTOR MASK : Logical circuit synthesizer)

Patent 5668734: Method for analyzing 2D transferred noesy spectra of molecules undergoing multistate conformational exchange
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : MEASUREMENT SYSTEM IN A SPECIFIC ENVIRONMENT : Chemical analysis : Cell count or shape or size analysis (e.g., blood cell))

Patent 5668735: Method and apparatus for continuous emissions monitoring system using gas chromatography
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : MEASUREMENT SYSTEM IN A SPECIFIC ENVIRONMENT : Chemical analysis : Quantitative determination (e.g., mass, concentration, density) : Gaseous mixture (e.g., solid-gas, liquid-gas, gas-gas) : Fluid flow investigation)

Patent 5668736: Method for designing and illustrating architectural enhancements to existing buildings
(DATA PROCESSING: STRUCTURAL DESIGN, MODELING, SIMULATION, AND EMULATION : STRUCTURAL DESIGN :)

Patent 5668737: High-speed data processor and coding method
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: PROCESSING ARCHITECTURES AND INSTRUCTION PROCESSING (E.G., PROCESSORS) : PROCESSING ARCHITECTURE :)

Patent 5668738: Dynamic idle aggregation in digital signal transmission
(MULTIPLEX COMMUNICATIONS : DATA FLOW CONGESTION PREVENTION OR CONTROL : Flow control of data transmission through a network : Based on data flow rate measurement)

Patent 5668739: System and method for tracking objects using a detection system
(IMAGE ANALYSIS : APPLICATIONS : Target tracking or detecting : ZIP code)

Patent 5668740: Method for detecting a rough road surface
(DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION : VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION : Indication or control of braking, acceleration, or deceleration : Adaptive control)

Patent 5668741: Process and device to continuously and in real time control a complex manufacturing process
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : MEASUREMENT SYSTEM : Performance or efficiency evaluation : Probability determination)

Patent 5668742: Apparatus for determining position of moving body
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : CALIBRATION OR CORRECTION SYSTEM : Position measurement : Coordinate positioning : Frequency)

Patent 5668743: Method for vision testing
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : MEASUREMENT SYSTEM : Dimensional determination : Linear distance or length : 3D orientation)

Patent 5668744: Active noise control using piezoelectric sensors and actuators
(DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS : SPECIFIC APPLICATION, APPARATUS OR PROCESS : Mechanical control system : Vibration or acoustic noise control : Specific thermally responsive controller)

Patent 5668745: Method and apparatus for testing of semiconductor devices
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : TESTING SYSTEM : Including multiple test instruments : Including input/output or test mode selection means)

Patent 5668746: Reproduced waveform equalization circuit
(ELECTRICAL COMPUTERS: ARITHMETIC PROCESSING AND CALCULATING : ELECTRICAL DIGITAL CALCULATING COMPUTER : Particular function performed : Filtering : Wave : Tone detection)

Patent 5668747: Coefficient updating method for an adaptive filter
(ELECTRICAL COMPUTERS: ARITHMETIC PROCESSING AND CALCULATING : ELECTRICAL DIGITAL CALCULATING COMPUTER : Particular function performed : Filtering : Adaptive : Tone detection)

Patent 5668748: Apparatus for two-dimensional discrete cosine transform
(ELECTRICAL COMPUTERS: ARITHMETIC PROCESSING AND CALCULATING : ELECTRICAL DIGITAL CALCULATING COMPUTER : Particular function performed : Transform : Discrete Cosine Transform (i.e., DCT) : Equalizer)

Patent 5668749: Circuit for performing arithmetic operations in a demodulator
(ELECTRICAL COMPUTERS: ARITHMETIC PROCESSING AND CALCULATING : ELECTRICAL DIGITAL CALCULATING COMPUTER : Particular function performed : Arithmetical operation : Vector resolver)

Patent 5668750: Bipolar multiplier with wide input voltage range using multitail cell
(ELECTRICAL COMPUTERS: ARITHMETIC PROCESSING AND CALCULATING : ELECTRICAL ANALOG CALCULATING COMPUTER : Particular function performed : Multiplication : Amplifier with additional feedback loop)

Patent 5668751: Antifuse programming method and apparatus
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ ONLY SYSTEMS (I.E.. SEMIPERMANENT) : Fusible : With other type core)

Patent 5668752: Multi-stage ROM wherein a cell current of a selected memory cell is compared with a plurality of constant currents when driven to read
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ ONLY SYSTEMS (I.E.. SEMIPERMANENT) : Semiconductive : Transistors : Flash)

Patent 5668753: Ferroelectric memory and method for controlling operation of the same
(STATIC INFORMATION STORAGE AND RETRIEVAL : SYSTEMS USING PARTICULAR ELEMENT : Ferroelectric : Same size apertures)

Patent 5668754: Ferroelectric memory cell and reading/writing method thereof
(STATIC INFORMATION STORAGE AND RETRIEVAL : SYSTEMS USING PARTICULAR ELEMENT : Ferroelectric : Same size apertures)

Patent 5668755: Semiconductor memory device having well region
(STATIC INFORMATION STORAGE AND RETRIEVAL : SYSTEMS USING PARTICULAR ELEMENT : Semiconductive : Insulated gate devices : Biax)

Patent 5668756: Multi-value level type non-volatile semiconductor memory unit and method of rewriting the same
(STATIC INFORMATION STORAGE AND RETRIEVAL : FLOATING GATE : Multiple values (e.g., analog) : Overlays)

Patent 5668757: Scalable flash eeprom memory cell and array
(STATIC INFORMATION STORAGE AND RETRIEVAL : FLOATING GATE : Particular connection : Extended floating gate : Rectangular bars)

Patent 5668758: Decoded wordline driver with positive and negative voltage modes
(STATIC INFORMATION STORAGE AND RETRIEVAL : FLOATING GATE : Particular biasing : Drive circuitry (e.g., word line driver) : Verify signal)

Patent 5668759: Method for erasing and verifying nonvolatile semiconductor memory
(STATIC INFORMATION STORAGE AND RETRIEVAL : FLOATING GATE : Particular biasing : Erase : Verify signal)

Patent 5668760: Nonvolatile memory with a write protection circuit
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ/WRITE CIRCUIT : Semiconductive)

Patent 5668761: Fast read domino SRAM
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ/WRITE CIRCUIT : Having particular data buffer or latch : Four or more devices per bit)

Patent 5668762: Semiconductor memory device allowing reduction of power consumed in a shared sense amplifier type sense amplifier
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ/WRITE CIRCUIT : Including level shift or pull-up circuit : Four or more devices per bit)

Patent 5668763: Semiconductor memory for increasing the number of half good memories by selecting and using good memory blocks
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ/WRITE CIRCUIT : Bad bit : Coincident A.C. signal with pulse)

Patent 5668764: Testability apparatus and method for faster data access and silicon die size reduction
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ/WRITE CIRCUIT : Testing : Coincident A.C. signal with pulse)

Patent 5668765: Charge transfer sense amplifier
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ/WRITE CIRCUIT : Flip-flop used for sensing : Coincident A.C. signal with pulse)

Patent 5668766: Method and apparatus for increasing memory read access speed using double-sensing
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ/WRITE CIRCUIT : Noise suppression : Differential sensing : Sense/inhibit)

Patent 5668767: Polled FIFO flags
(STATIC INFORMATION STORAGE AND RETRIEVAL : READ/WRITE CIRCUIT : Serial read/write : Holographic)

Patent 5668769: Memory device performance by delayed power-down
(STATIC INFORMATION STORAGE AND RETRIEVAL : POWERING : Having fuse element)

Patent 5668770: Static memory cell having independent data holding voltage
(STATIC INFORMATION STORAGE AND RETRIEVAL : POWERING : Conservation of power : Holographic)

Patent 5668771: Programmable logic array integrated circuits
(STATIC INFORMATION STORAGE AND RETRIEVAL : ADDRESSING : Plural blocks or banks : Standby power)

Patent 5668772: Semiconductor memory device and access method for the same
(STATIC INFORMATION STORAGE AND RETRIEVAL : ADDRESSING : Particular decoder or driver circuit : Alternate addressing (e.g., even/odd))

Patent 5668773: Synchronous burst extended data out DRAM
(STATIC INFORMATION STORAGE AND RETRIEVAL : ADDRESSING : Sync/clocking : Magnetic)

Patent 5668774: Dynamic semiconductor memory device having fast operation mode and operating with low current consumption
(STATIC INFORMATION STORAGE AND RETRIEVAL : ADDRESSING : Sync/clocking : Magnetic)

Patent 5668775: Methods for determining the position of seismic equipment, and applications of the methods
(COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES : SEISMIC PROSPECTING : Offshore prospecting : Transducer cable location determination : Fluid variation)

Patent 5668776: Velocity measurement apparatus of moving object
(COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES : ECHO SYSTEMS : Speed determination : Linear valve control)

Patent 5668777: Torpedo signal processor
(COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES : ECHO SYSTEMS : Returned signal used for control : External device : Vehicle mounted system for determining vehicle speed)

Patent 5668778: Method for detecting acoustic signals from an underwater source
(COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES : RECEIVER CIRCUITRY : Telemetering)

Patent 5668779: Hydrophone group design for shallow towed applications
(COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES : SIGNAL TRANSDUCERS : Underwater type : Exclusive-type receiver : Electrically driven underwater bells or sirens)

Patent 5668780: Baby cry recognizer
(COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES : SELECTIVE (E.G., REMOTE CONTROL) : Humanly generated sound or speech responsive (e.g., human whistle) : With indicator)

Patent 5668781: Analog electronic timepiece having a multifunctional calendar disc
(HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES : WITH CALENDAR INDICATOR : With movable disk display)

Patent 5668782: Programmed multi time interval pin
(HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES : TIME INTERVAL : Electrical or electromechanical : With reset means)

Patent 5668783: Sound generator in particular for a timepiece
(HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES : SIGNALLING MEANS : Time condition responsive (i.e., alarm) : Electrical : Of dial fasteners)

Patent 5668784: Watch band attachment mechanism
(HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES : CASES : Wrist worn : With band or bracelet details : Setting)

Patent 5668785: Multiple audio signal recording and reproducing apparatus
(DYNAMIC INFORMATION STORAGE OR RETRIEVAL : COMBINED INDEPENDENT AUDIO SYSTEMS : One of systems having plural concurrent signals (e.g., stereophonic) : Fading between plural signals)

Patent 5668786: Magneto-optic disk apparatus having means for eliminating fluctuation component in reproduction magneto-optic signal
(DYNAMIC INFORMATION STORAGE OR RETRIEVAL : STORAGE OR RETRIEVAL BY SIMULTANEOUS APPLICATION OF DIVERSE TYPES OF ELECTROMAGNETIC RADIATION : Magnetic field and light beam : Light beam generation : Light beam transducer assembly : Linear polarization)

Patent 5668787: Mark length recording system with trial writing to maximize recording power and error recovery
(DYNAMIC INFORMATION STORAGE OR RETRIEVAL : STORAGE OR RETRIEVAL BY SIMULTANEOUS APPLICATION OF DIVERSE TYPES OF ELECTROMAGNETIC RADIATION : Magnetic field and light beam : Cabinet details)

Patent 5668788: Programmed juke box capable of calculating a continuous updated playlist
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : DISPLAY PERIPHERAL INTERFACE INPUT DEVICE : Touch panel : Having programmable function key)

Patent 5668789: Recording method of recording medium
(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 5668790: Disk reproducing apparatus with plural disk trays
(DYNAMIC INFORMATION STORAGE OR RETRIEVAL : DYNAMIC MECHANISM SUBSYSTEM : Access of multiple storage elements (e.g., record changer) : Storage disc fed to and removed from turntable : Coplanar storage : By replacement)

Patent 5668791: Damper mechanism for a recording and/or reproducing apparatus
(DYNAMIC OPTICAL INFORMATION STORAGE OR RETRIEVAL : DYNAMIC MECHANISM OPTICAL SUBSYSTEM : Chassis base supporting transducer carriage : Vibration or resonance suppression : Grommet and coil spring : Dampening or resonance suppression)

Patent 5668792: Turntable of a disc player for both a compact disc and a mini disc
(DYNAMIC OPTICAL INFORMATION STORAGE OR RETRIEVAL : PARTICULAR CABINET STRUCTURE FOR OPTICAL MEDIA : Capable of alternatively accepting protected or unprotected insertable single optical medium : Shutter opening mechanism)

Patent 5668793: Disk cartridge driving apparatus
(DYNAMIC OPTICAL INFORMATION STORAGE OR RETRIEVAL : PARTICULAR CABINET STRUCTURE FOR OPTICAL MEDIA : Environmental control : Door mechanism)

Patent 5668794: Variable gain echo suppressor
(MULTIPLEX COMMUNICATIONS : DUPLEX : Transmit/receive interaction control : Echo suppression or cancellation : Using an attenuator : Including cancellation of certain signals)

Patent 5668795: Modulation system for spread spectrum CDMA communiction
(MULTIPLEX COMMUNICATIONS : GENERALIZED ORTHOGONAL OR SPECIAL MATHEMATICAL TECHNIQUES : Particular set of orthogonal functions : Walsh functions :)

Patent 5668796: Duplexing and switching system and method in a multiplexed system
(MULTIPLEX COMMUNICATIONS : FAULT RECOVERY : Bypass an inoperative switch or inoperative element of a switching system : Walsh functions)

Patent 5668797: Traffic controller for cell-based transmission
(MULTIPLEX COMMUNICATIONS : DATA FLOW CONGESTION PREVENTION OR CONTROL : Bypass an inoperative channel)

Patent 5668798: Multiplexed TC sublayer for ATM switch
(MULTIPLEX COMMUNICATIONS : DATA FLOW CONGESTION PREVENTION OR CONTROL : Control of data admission to the network : Spare channel)

Patent 5668799: Bus line traffic control adapter apparatus
(MULTIPLEX COMMUNICATIONS : DATA FLOW CONGESTION PREVENTION OR CONTROL : Control of data admission to the network : Spare channel)

Patent 5668800: Path testing in communications networks
(MULTIPLEX COMMUNICATIONS : DIAGNOSTIC TESTING (OTHER THAN SYNCHRONIZATION) : Path check : Having a dedicated test line or channel)

Patent 5668801: Method for evaluating a number of discriminated digital data units and for estimating the response time
(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 5668802: High-speed digital subscriber lines
(MULTIPLEX COMMUNICATIONS : DUPLEX : Duplex diplex)

Patent 5668803: Protocol for packet data communication system
(MULTIPLEX COMMUNICATIONS : COMMUNICATION OVER FREE SPACE : Message addressed to multiple destinations : Having a plurality of contiguous regions served by respective fixed stations)

Patent 5668804: Base station with time-aligned mobile transmitting moments according to distance to base station
(MULTIPLEX COMMUNICATIONS : COMMUNICATION OVER FREE SPACE : Having a plurality of contiguous regions served by respective fixed stations : Channel assignment : Hand-off control : Including onboard switching)

Patent 5668805: Multiplex broadcasting method and 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 code word channels using multiple access techniques (e.g., CDMA) : Based upon a particular signal quality measurement)

Patent 5668806: Spread spectrum communication apparatus
(MULTIPLEX COMMUNICATIONS : COMMUNICATION OVER FREE SPACE : Combining or distributing information via code word channels using multiple access techniques (e.g., CDMA) : Channel assignment)

Patent 5668807: Synchronization of transparent TDM superchannels
(MULTIPLEX COMMUNICATIONS : PATHFINDING OR ROUTING : Through a circuit switch : Switching control : Time switch, per se (e.g., T or T-T) : Having details of control storage arrangement : Having details of control storage arrangement)

Patent 5668808: Path route retrieval method in a time multiplexer network
(MULTIPLEX COMMUNICATIONS : PATHFINDING OR ROUTING : Through a circuit switch : Switching control : Time switch, per se (e.g., T or T-T) : Having details of control storage arrangement : Having details of control storage arrangement)

Patent 5668809: Single chip network hub with dynamic window filter
(MULTIPLEX COMMUNICATIONS : PATHFINDING OR ROUTING : Switching a message which includes an address header : Processing of address header for routing, per se : Multistage switch)

Patent 5668810: Data transmission protocol method and apparatus
(MULTIPLEX COMMUNICATIONS : PATHFINDING OR ROUTING : Switching a message which includes an address header : Processing of address header for routing, per se : Multistage switch)

Patent 5668811: Method of maintaining frame synchronization in a communication network
(MULTIPLEX COMMUNICATIONS : PATHFINDING OR ROUTING : Switching a message which includes an address header : Centralized switching : Including a bus for interconnecting inputs and outputs : Including a ring or loop for interconnecting inputs and outputs : At least one bus is a ring network)

Patent 5668812: Apparatus for detecting and controlling loss of ATM cell
(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 5668813: Dynamic synchronization code detection window
(MULTIPLEX COMMUNICATIONS : COMMUNICATION TECHNIQUES FOR INFORMATION CARRIED IN PLURAL CHANNELS : Combining or distributing information via time channels : Synchronizing : Using synchronization information contained in a frame : Unique synchronization word or unique bit sequence : Plural synchronization words)

Patent 5668814: Dual DDS data multiplexer
(MULTIPLEX COMMUNICATIONS : COMMUNICATION TECHNIQUES FOR INFORMATION CARRIED IN PLURAL CHANNELS : Combining or distributing information via time channels : Multiplexing plural input channels to a common output channel : Plural input channels of same rate to a single common rate output channel : Multiple levels of multiplexing to form a multiplex hierarchy)

Patent 5668815: Method for testing integrated memory using an integrated DMA controller
(ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY : PULSE OR DATA ERROR HANDLING : Memory testing : Read-in with read-out and compare : Loop-back)

Patent 5668816: Method and apparatus for injecting errors into an array built-in self-test
(ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY : PULSE OR DATA ERROR HANDLING : Memory testing : Read-in with read-out and compare : Special test pattern (e.g., checkerboard, walking ones) : Bus or I/O channel device fault)

Patent 5668817: Self-testable digital signal processor and method for self-testing of integrating circuits including DSP data paths
(ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY : PULSE OR DATA ERROR HANDLING : Digital logic testing : Signature analysis : Clock or synchronization)

Patent 5668818: System and method for scan control of a programmable fuse circuit in an integrated circuit
(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)) : Special test pattern (e.g., checkerboard, walking ones))

Patent 5668819: Mask control device for LSI tester
(ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY : PULSE OR DATA ERROR HANDLING : Digital logic testing : Device response compared to expected fault-free response : Clock or synchronization)

Patent 5668820: Digital communication system having a punctured convolutional coding system and method
(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) : Code based on generator polynomial)

Patent 5668821: Optical systems and devices employing spectrally flattened amplified spontaneous emission
(COHERENT LIGHT GENERATORS : OPTICAL FIBER LASER :)

Patent 5668822: Integrated semiconductor laser device
(COHERENT LIGHT GENERATORS : PARTICULAR TEMPERATURE CONTROL : Heat sink : Frequency)

Patent 5668823: Injection laser assembly incorporating a monitor photosensor
(COHERENT LIGHT GENERATORS : PARTICULAR ACTIVE MEDIA : Semiconductor : Injection : Monolithic integrated : Having photodetection means : With vertical output (surface emission))

Patent 5668824: Method and apparatus for replenishing dye solution in a dye laser
(COHERENT LIGHT GENERATORS : PARTICULAR ACTIVE MEDIA : Liquid : Particular structural features : Monolithic integrated)

Patent 5668825: Lens support structure for laser diode arrays
(COHERENT LIGHT GENERATORS : PARTICULAR RESONANT CAVITY : Specified cavity component : Lens or lens system : Hollow electrode)

Patent 5668826: Electro-optical device comprising a controlled laser diode
(COHERENT LIGHT GENERATORS : PARTICULAR BEAM CONTROL DEVICE : Optical output stabilization : Frequency : Rotating prism)

Patent 5668827: Crucible for induction melting
(INDUSTRIAL ELECTRIC HEATING FURNACES : INDUCTION FURNACE DEVICE : Coreless : Crucible : Cooling)

Patent 5668828: Enhanced frequency agile radio
(PULSE OR DIGITAL COMMUNICATIONS : SPREAD SPECTRUM : Frequency hopping : Receiver : Having specific code acquisition or tracking)

Patent 5668829: Spread spectrum communication apparatus
(PULSE OR DIGITAL COMMUNICATIONS : SPREAD SPECTRUM : Direct sequence : End-to-end transmission system : Having correlation-type receiver :)

Patent 5668830: Digital phase alignment and integrated multichannel transceiver employing same
(PULSE OR DIGITAL COMMUNICATIONS : TRANSCEIVERS : Transmission interface between two stations or terminals : Phase locked loop)

Patent 5668831: Signal processing apparatus and method
(PULSE OR DIGITAL COMMUNICATIONS : EQUALIZERS : Automatic : Adaptive : Matched-filter-type receiver)

Patent 5668832: Automatic equalizer for removing inter-code interference with fading and method of controlling tap coefficients thereof
(PULSE OR DIGITAL COMMUNICATIONS : EQUALIZERS : Automatic : Adaptive : Decision feedback equalizer : Having SAW or charge-transfer device)

Patent 5668833: Decision-feedback type equalizer
(PULSE OR DIGITAL COMMUNICATIONS : EQUALIZERS : Automatic : Adaptive : Decision feedback equalizer : Having SAW or charge-transfer device)

Patent 5668834: Signal transmitting device suitable for fast signal transmission including an arrangement to reduce signal amplitude in a second stage
(PULSE OR DIGITAL COMMUNICATIONS : CABLE SYSTEMS AND COMPONENTS : Noise or distortion reduction)

Patent 5668836: Split frequency band signal digitizer and method
(PULSE OR DIGITAL COMMUNICATIONS : RECEIVERS : Keying circuits)

Patent 5668837: Dual-mode radio receiver for receiving narrowband and wideband signals
(PULSE OR DIGITAL COMMUNICATIONS : RECEIVERS : Keying circuits)

Patent 5668838: Instantaneous phase detecting circuit and clock recovery signal generating circuit incorporated in differential demodulator
(PULSE OR DIGITAL COMMUNICATIONS : RECEIVERS : Particular pulse demodulator or detector : Carrier controlling local generator)

Patent 5668839: IF signal combiner for minimizing the BER in a space or angle diversity digital radio receiver
(PULSE OR DIGITAL COMMUNICATIONS : RECEIVERS : Interference or noise reduction : Diversity (frequency or time) : Separate mark and space channels)

Patent 5668840: Synchronizing circuit for use in a digital audio signal compressingxpanding system
(PULSE OR DIGITAL COMMUNICATIONS : SYNCHRONIZERS : Frequency or phase control using synchronizing signal : Synchronization word : Synchronizer pattern recognizers : More than two phases)

Patent 5668841: Timing recovery for variable bit-rate video on asynchronous transfer mode (ATM) networks
(PULSE OR DIGITAL COMMUNICATIONS : SYNCHRONIZERS : Phase displacement, slip or jitter correction : Start - stop)

Patent 5668842: High-speed digital-to-RF-converter
(PULSE OR DIGITAL COMMUNICATIONS : TRANSMITTERS : Angle modulation : Phase shift keying : Two or more oscillators)

Patent 5668843: Storage cage for storage and transport of fuel assemblies
(INDUCED NUCLEAR REACTIONS: PROCESSES, SYSTEMS, AND ELEMENTS : HANDLING OF FISSION REACTOR COMPONENT STRUCTURE WITHIN REACTOR SYSTEM : Storage container systems for new and/or irradiated core elements : Upper axial transfer)

Patent 5668844: Self-calibrated tomosynthetic, radiographic-imaging system, method, and device
(X-RAY OR GAMMA RAY SYSTEMS OR DEVICES : SPECIFIC APPLICATION : Radiation coding :)

Patent 5668845: Computed-tomography apparatus and control method thereof
(X-RAY OR GAMMA RAY SYSTEMS OR DEVICES : SPECIFIC APPLICATION : Computerized tomography :)

Patent 5668846: Methods and apparatus for scanning an object and displaying an image in a computed tomography system
(X-RAY OR GAMMA RAY SYSTEMS OR DEVICES : SPECIFIC APPLICATION : Computerized tomography :)

Patent 5668847: Apparatus and method for adjusting radiation in a radiation-emitting device
(X-RAY OR GAMMA RAY SYSTEMS OR DEVICES : SPECIFIC APPLICATION : Absorption : Irradiating : Therapy : Pipe crawler)

Patent 5668848: X-ray target tape system
(X-RAY OR GAMMA RAY SYSTEMS OR DEVICES : SOURCE : Electron tube : With movable target : Tube overload)

Patent 5668849: Method of manufacturing a rotating anode X-ray tube
(X-RAY OR GAMMA RAY SYSTEMS OR DEVICES : SOURCE : Electron tube : With movable target : With specific bearing means : With lubrication :)

Patent 5668850: Systems and methods of determining x-ray tube life
(X-RAY OR GAMMA RAY SYSTEMS OR DEVICES : MISCELLANEOUS : Object holder or support)

Patent 5668851: X-ray Tomography system with stabilized detector response
(X-RAY OR GAMMA RAY SYSTEMS OR DEVICES : SPECIFIC APPLICATION : Computerized tomography : Beam detection system : Fan beam translation)

Patent 5668852: Automatic caller-associated information provision system, improvement and method for paging system
(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 5668853: Telecommunications calling feature method and apparatus
(TELEPHONIC COMMUNICATIONS : AUDIO MESSAGE STORAGE, RETRIEVAL, OR SYNTHESIS : Including infra-red link with landline telephone network)

Patent 5668854: Distributed system for call processing
(TELEPHONIC COMMUNICATIONS : AUDIO MESSAGE STORAGE, RETRIEVAL, OR SYNTHESIS : Interacting voice message systems : Pager activation)

Patent 5668855: Message management system
(TELEPHONIC COMMUNICATIONS : AUDIO MESSAGE STORAGE, RETRIEVAL, OR SYNTHESIS : Message management : Caller identification received at substation)

Patent 5668856: Method and system for screening calls directed to an international telephone operator
(TELEPHONIC COMMUNICATIONS : AUDIO MESSAGE STORAGE, RETRIEVAL, OR SYNTHESIS : Interacting voice message systems : Pager activation)

Patent 5668857: Communication server apparatus and method
(TELEPHONIC COMMUNICATIONS : TELEPHONE LINE OR SYSTEM COMBINED WITH DIVERSE ELECTRICAL SYSTEM OR SIGNALLING (E.G., COMPOSITE) : Having transmission of a digital message signal over a telephone line : Terminal interface circuitry : To plural lines or networks : Recording voice message from non subscriber caller)

Patent 5668858: Control device for a facsimile apparatus
(TELEPHONIC COMMUNICATIONS : TELEPHONE LINE OR SYSTEM COMBINED WITH DIVERSE ELECTRICAL SYSTEM OR SIGNALLING (E.G., COMPOSITE) : To produce visual-graphic copy (e.g., facsimile) : By voice frequency signal (e.g., tone code))

Patent 5668859: Apparatus and method for connecting remote callers to loudspeakers or other projecting means in an event facility
(TELEPHONIC COMMUNICATIONS : TELEPHONE LINE OR SYSTEM COMBINED WITH DIVERSE ELECTRICAL SYSTEM OR SIGNALLING (E.G., COMPOSITE) : Audio program distribution : Transmission scheme)

Patent 5668860: Call screening at a hierarchical switch based on organizational membership of the parties
(TELEPHONIC COMMUNICATIONS : SPECIAL SERVICES : Call diversion (e.g., call capture) : Call forwarding : No answer (e.g., ringing signal, on-hook, idle))

Patent 5668861: Telecommunications system with notification hold
(TELEPHONIC COMMUNICATIONS : SPECIAL SERVICES : Call Waiting : Secretarial or answering service)

Patent 5668862: Method and apparatus for providing user controlled call management services
(TELEPHONIC COMMUNICATIONS : SPECIAL SERVICES : Service trigger (activation or deactivation) : Dialed number identification service (DNIS) : No answer (e.g., ringing signal, on-hook, idle))

Patent 5668863: Method and apparatus for recording and retrieval of audio conferences
(TELEPHONIC COMMUNICATIONS : SPECIAL SERVICES : Conferencing : Detecting presence or absence of party or object)

Patent 5668864: Data communication method and apparatus including volatile and non-volatile storage
(TELEPHONIC COMMUNICATIONS : SUPERVISORY OR CONTROL LINE SIGNALING : Substation originated : Repertory or abbreviated call signal generation : Selection of registered call address signal : Including modification of indicia associated with a call address)

Patent 5668865: Echo canceler E-side speech detector
(TELEPHONIC COMMUNICATIONS : ECHO CANCELLATION OR SUPPRESSION : Using digital signal processing : Adaptive filtering : Allowing movement of equipment (e.g., movable, modular))

Patent 5668866: Apparatus for protecting a subscriber line interface circuit against overvoltages
(TELEPHONIC COMMUNICATIONS : SUBSCRIBER LINE OR TRANSMISSION LINE INTERFACE : Protective circuit : Electronic noninductive)

Patent 5668867: Foldable portable telephone with improved antenna gain
(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 5668868: Memorandum recorder for use with a telephone
(TELEPHONIC COMMUNICATIONS : TERMINAL ACCESSORY OR AUXILIARY EQUIPMENT : Attachable to terminal housing : Acoustic)

Patent 5668869: Mobile telephone handset holder
(TELEPHONIC COMMUNICATIONS : TERMINAL ACCESSORY OR AUXILIARY EQUIPMENT : Attachable to terminal housing : Handset holder (e.g., shoulder rest) : Antiseptic)

Patent 5668870: Audible signaling device for informing when a telephone line is available or in use
(TELEPHONIC COMMUNICATIONS : SUPERVISORY OR CONTROL LINE SIGNALING : Using line or loop condition detection (e.g., line circuit) : Silencing ring signal)

Patent 5668871: Audio signal processor and method therefor for substantially reducing audio feedback in a cummunication unit
(TELEPHONIC COMMUNICATIONS : ECHO CANCELLATION OR SUPPRESSION : Using digital signal processing : Using attenuator : Allowing movement of equipment (e.g., movable, modular))

Patent 5668872: Information processing method and system
(DATA PROCESSING: FINANCIAL, BUSINESS PRACTICE, MANAGEMENT, OR COST/PRICE DETERMINATION : BUSINESS PROCESSING USING CRYPTOGRAPHY : Usage protection of distributed data files : Requiring a supplemental attachment or input (e.g., dongle) to open : Adding plural layers of rights or limitations by other than the original producer)

Patent 5668873: Video signal processor with copy prevention function
(DATA PROCESSING: FINANCIAL, BUSINESS PRACTICE, MANAGEMENT, OR COST/PRICE DETERMINATION : BUSINESS PROCESSING USING CRYPTOGRAPHY : Usage protection of distributed data files : Copy protection or prevention : Specific computer ID (e.g., serial number, configuration, etc.))

Patent 5668874: Identification card verification system and method
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: SUPPORT : SYSTEM ACCESS CONTROL BASED ON USER IDENTIFICATION BY CRYPTOGRAPHY : Using record or token : Biometric acquisition : Including generation of associated coded record)

Patent 5668875: Method and apparatus for authentication in a communication system
(CRYPTOGRAPHY : CELLULAR TELEPHONE CRYPTOGRAPHIC AUTHENTICATION : Visiting center : Including addressed decoder control signal)

Patent 5668876: User authentication method and apparatus
(CRYPTOGRAPHY : COMMUNICATION SYSTEM USING CRYPTOGRAPHY : Wireless communication : Having receiver selection (e.g., pager) : Nonlinear or chaotic system)

Patent 5668877: Method and apparatus for stepping pair keys in a key-management scheme
(CRYPTOGRAPHY : PARTICULAR ALGORITHMIC FUNCTION ENCODING : Public key : Plural generators)

Patent 5668878: Secure cryptographic methods for electronic transfer of information
(CRYPTOGRAPHY : PARTICULAR ALGORITHMIC FUNCTION ENCODING : Public key : Plural generators)

Patent 5668879: Audio scrambling system for scrambling and descrambling audio signals
(CRYPTOGRAPHY : COMMUNICATION SYSTEM USING CRYPTOGRAPHY : Circuit switched network (e.g., wired telephone) : Having quantizing and subsequent normalizing of signal (e.g., reentry telephone circuitry) : Having command signal for receiver)

Patent 5668880: Inter-vehicle personal data communications device
(MULTIPLEX COMMUNICATIONS : COMMUNICATION OVER FREE SPACE : Combining or distributing information via code word channels using multiple access techniques (e.g., CDMA) : Channel assignment)

Patent 5668881: Encryption of data in different formats
(CRYPTOGRAPHY : ELECTRIC SIGNAL MODIFICATION : Having production of printed copy (e.g., printer, typewriter) : By perforated record)

Patent 5668882: Notebook computer speakers
(ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES : BINAURAL AND STEREOPHONIC : Stereo speaker arrangement : Matrix)

Patent 5668883: Headphone apparatus including an equalizer system having an open loop characteristic with a rising slope outside the cancellation band
(ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES : HEARING PROTECTORS, ELECTRICAL : Counterwave generation control path)

Patent 5668884: Enhanced concert audio system
(ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES : ONE-WAY AUDIO SIGNAL PROGRAM DISTRIBUTION : Public address system : With switching)

Patent 5668885: Low frequency audio conversion circuit
(ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES : INCLUDING FREQUENCY CONTROL : Feedforward circuitry for transducer compensation)

Patent 5668886: Loudspeaker structure
(ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES : ELECTRO-ACOUSTIC AUDIO TRANSDUCER : Electromagnetic (e.g., dyynamic) : Magnetic circuit : Coil coating, winding layer structure, or wire)

Patent 5668887: Coating density analyzer and method using non-synchronous TDI camera
(IMAGE ANALYSIS : APPLICATIONS : Surface texture or roughness measuring : License plate)

Patent 5668888: Method and system for automatic detection of ribs and pneumothorax in digital chest radiographs
(IMAGE ANALYSIS : APPLICATIONS : Biomedical applications : X-ray film analysis (e.g., radiography) : With a prism)

Patent 5668889: Apparatus for determining an image position, and method for adjusting read-out conditions and/or image processing conditions for a radiation
(IMAGE ANALYSIS : APPLICATIONS : Biomedical applications : X-ray film analysis (e.g., radiography) : With a prism)

Patent 5668890: Method and apparatus for the automatic analysis of density range, color cast, and gradation of image originals on the BaSis of image values
(IMAGE ANALYSIS : COLOR IMAGE PROCESSING : Color correction : Alphanumerics)

Patent 5668891: Methods for determining font attributes of characters
(IMAGE ANALYSIS : HISTOGRAM PROCESSING : Color correction)

Patent 5668892: Table recognition apparatus
(IMAGE ANALYSIS : IMAGE SEGMENTATION : Segmenting individual characters or words : Alphanumerics)

Patent 5668893: Method for determining orientation of contour line segment in local area and for determining straight line and corner
(IMAGE ANALYSIS : PATTERN RECOGNITION : Feature extraction : Local or regional features : Directional codes and vectors (e.g., Freeman chains, compasslike codes) : Faulty soldering)

Patent 5668894: Method for processing three-dimensional shape data
(IMAGE ANALYSIS : IMAGE COMPRESSION OR CODING : Contour or chain coding (e.g., Bezier) : Checking spelling for recognition)

Patent 5668895: Digital filter for image processing
(IMAGE ANALYSIS : IMAGE ENHANCEMENT OR RESTORATION : Image filter : Line thinning or thickening)

Patent 5668896: Method of and apparatus for processing image having a plurality of image areas
(IMAGE ANALYSIS : IMAGE TRANSFORMATION OR PREPROCESSING : Selecting a portion of an image : Based on peak levels)

Patent 5668897: Method and apparatus for imaging, image processing and data compression merge/purge techniques for document image databases
(IMAGE ANALYSIS : IMAGE TRANSFORMATION OR PREPROCESSING : Selecting a portion of an image : Using a mask : Skeletonizing)

Patent 5668898: Device for detecting the inclination of image
(IMAGE ANALYSIS : IMAGE TRANSFORMATION OR PREPROCESSING : Measuring image properties (e.g., length, width, or area) : Determining amount an image is rotated or skewed : Where the image is a character, word, or text : Counting difference pixels)

Patent 5668899: Optical radiation coupler for an optical fiber
(OPTICAL WAVEGUIDES : WITH OPTICAL COUPLER : Input/output coupler : Lens : Mode strippers)

Patent 5668900: Taper shapes for sidelobe suppression and bandwidth minimization in distributed feedback optical reflection filters
(OPTICAL WAVEGUIDES : WITH OPTICAL COUPLER : Input/output coupler : Grating : Spherical)

Patent 5668901: Low reflectivity fiber bragg grating with rectangular reflection function
(OPTICAL WAVEGUIDES : WITH OPTICAL COUPLER : Input/output coupler : Grating : Spherical)

Patent 5668902: Coupling structure between a semiconductor laser and an optical fiber and coupling method thereof
(OPTICAL WAVEGUIDES : WITH OPTICAL COUPLER : Input/output coupler : End fire : Spherical)

Patent 5668903: Compound laser system for high power densities
(OPTICAL WAVEGUIDES : WITH OPTICAL COUPLER : Input/output coupler : End fire : Spherical)

Patent 5668904: Fiber optic cable connector apparatus and method
(OPTICAL WAVEGUIDES : WITH DISENGAGABLE MECHANICAL CONNECTOR : Structure surrounding optical fiber-to-fiber connection : With additional structure at or immediately surrounding each optical fiber end face : Fiber end held in ferrule : Fiber end held in ferrule)

Patent 5668905: Optical fiber ferrule assembly having angular index showing polarization plane
(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 5668906: Connector assembly for elongated elements
(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 : Groove-type holding structure : Tube-type holding structure)

Patent 5668907: Thin optical display panel
(OPTICAL WAVEGUIDES : OPTICAL FIBER BUNDLE : Fiber bundle plate : With lens or mirror)

Patent 5668908: Fiber optic gyro sensor coil with improved temperature stability
(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 5668909: Container for housing optical components in an active fiber optical amplifier
(OPTICAL WAVEGUIDES : ACCESSORIES : Thin film optical waveguide)

Patent 5668910: Wire guide and optical fiber storage spool assembly
(OPTICAL WAVEGUIDES : ACCESSORIES : Thin film optical waveguide)

Patent 5668911: Storage holders for optical fibers
(OPTICAL WAVEGUIDES : ACCESSORIES : Splice box and surplus fiber storage/trays/organizers/ carriers : Channel waveguide)

Patent 5668912: Rectangular optical fiber cable
(OPTICAL WAVEGUIDES : OPTICAL TRANSMISSION CABLE : Including splice joint reinforcement)

Patent 5668913: Light expanding system for producing a linear or planar light beam from a point-like light source
(OPTICAL WAVEGUIDES : NONCYCLINDRICAL OR NONPLANAR SHAPED WAVEGUIDE : Of waveguide cladding)

Patent 5668914: Video signal reproduction processing method and apparatus for reproduction of a recorded video signal as either a sharp still image
(TELEVISION SIGNAL PROCESSING FOR DYNAMIC RECORDING OR REPRODUCING : PROCESSING OF TELEVISION SIGNAL FOR DYNAMIC RECORDING OR REPRODUCING : Using disc)

Patent 5668915: Method for automatically setting VCR clock based on a broadcast time signal and displaying time
(TELEVISION SIGNAL PROCESSING FOR DYNAMIC RECORDING OR REPRODUCING : PROCESSING OF TELEVISION SIGNAL FOR DYNAMIC RECORDING OR REPRODUCING : Using disc)

Patent 5668916: Apparatus for reproducing data not successively located on a recording medium
(TELEVISION SIGNAL PROCESSING FOR DYNAMIC RECORDING OR REPRODUCING : PROCESSING OF TELEVISION SIGNAL FOR DYNAMIC RECORDING OR REPRODUCING : Drop-out correction : Color signal in nonpictorial form)

Patent 5668917: Apparatus and method for detection of unwanted broadcast information
(TELEVISION SIGNAL PROCESSING FOR DYNAMIC RECORDING OR REPRODUCING : PROCESSING OF TELEVISION SIGNAL FOR DYNAMIC RECORDING OR REPRODUCING : Editing : Using static memory or delay means)

Patent 5668918: Method for recording digital data using a series of adjacent heads of alternating azimuths located on a headwheel to record data at a rate
(TELEVISION SIGNAL PROCESSING FOR DYNAMIC RECORDING OR REPRODUCING : PROCESSING OF TELEVISION SIGNAL FOR DYNAMIC RECORDING OR REPRODUCING : Compressing in recording or decompressing in reproducing : Intraframe or interframe : Including television camera)

Patent 5668919: Camera
(PHOTOGRAPHY : HAVING PHOTOCELL AT SPECIFIC POSITION WITHIN CAMERA : Safety lock)

Patent 5668920: Ceiling fan with attachable heater housing having an additional fan therein
(ELECTRIC RESISTANCE HEATING DEVICES : : Convection space heater : Forced air type : Heating attachment for fan : Wall mounted)

Patent 5668921: Hot-air dryer with infrared heater and slit-shaped outlet
(ELECTRIC RESISTANCE HEATING DEVICES : : Concentrated heated air stream (i.e., blast) : Combined with radiation)

Patent 5668922: Water heater having molded plastic storage tank and associated fabrication methods
(ELECTRIC RESISTANCE HEATING DEVICES : : Tank or container type liquid heater : Multi-direction radiant heat output)

Patent 5668923: Voice messaging system and method making efficient use of orthogonal modulation components
(DATA PROCESSING: SPEECH SIGNAL PROCESSING, LINGUISTICS, LANGUAGE TRANSLATION, AND AUDIO COMPRESSION/DECOMPRESSION : SPEECH SIGNAL PROCESSING : For storage or transmission : Transformation : Orthogonal functions :)

Patent 5668924: Digital sound recording and reproduction device using a coding technique to compress data for reduction of memory requirements
(DATA PROCESSING: SPEECH SIGNAL PROCESSING, LINGUISTICS, LANGUAGE TRANSLATION, AND AUDIO COMPRESSION/DECOMPRESSION : SPEECH SIGNAL PROCESSING : For storage or transmission : Linear prediction : Correlation function)

Patent 5668925: Low data rate speech encoder with mixed excitation
(DATA PROCESSING: SPEECH SIGNAL PROCESSING, LINGUISTICS, LANGUAGE TRANSLATION, AND AUDIO COMPRESSION/DECOMPRESSION : SPEECH SIGNAL PROCESSING : For storage or transmission : Analysis by synthesis : Correlation function)

Patent 5668926: Method and apparatus for converting text into audible signals using a neural network
(DATA PROCESSING: SPEECH SIGNAL PROCESSING, LINGUISTICS, LANGUAGE TRANSLATION, AND AUDIO COMPRESSION/DECOMPRESSION : SPEECH SIGNAL PROCESSING : Recognition : Neural network : Post-transmission)

Patent 5668927: Method for reducing noise in speech signals by adaptively controlling a maximum likelihood filter for calculating speech components
(DATA PROCESSING: SPEECH SIGNAL PROCESSING, LINGUISTICS, LANGUAGE TRANSLATION, AND AUDIO COMPRESSION/DECOMPRESSION : SPEECH SIGNAL PROCESSING : Recognition : Specialized equations or comparisons : Probability : Cross-correlation)

Patent 5668928: Speech recognition system and method with automatic syntax generation
(DATA PROCESSING: SPEECH SIGNAL PROCESSING, LINGUISTICS, LANGUAGE TRANSLATION, AND AUDIO COMPRESSION/DECOMPRESSION : SPEECH SIGNAL PROCESSING : Recognition : Creating patterns for matching : Viterbi trellis)

Patent 5668929: Speech activated security systems and methods
(DATA PROCESSING: SPEECH SIGNAL PROCESSING, LINGUISTICS, LANGUAGE TRANSLATION, AND AUDIO COMPRESSION/DECOMPRESSION : SPEECH SIGNAL PROCESSING : Application : Security system : Specialized models)

Patent 5668930: Off-line teaching method for a robot
(DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS : SPECIFIC APPLICATION, APPARATUS OR PROCESS : Robot control : Specific enhancing or modifying technique (e.g., adaptive control) : Interpolation : Movable (e.g., rotatable))

Patent 5668931: Method for automatic trap selection for correcting for plate misregistration in color printing
(FACSIMILE AND STATIC PRESENTATION PROCESSING : STATIC PRESENTATION PROCESSING (E.G., PROCESSING DATA FOR PRINTER, ETC.) : Plural marking means :)

Patent 5668932: Digital video data compression technique
(FACSIMILE AND STATIC PRESENTATION PROCESSING : STATIC PRESENTATION PROCESSING (E.G., PROCESSING DATA FOR PRINTER, ETC.) : Attribute control :)

Patent 5668933: Image transformation apparatus for producing an image collapsing effect
(FACSIMILE AND STATIC PRESENTATION PROCESSING : STATIC PRESENTATION PROCESSING (E.G., PROCESSING DATA FOR PRINTER, ETC.) : Character or font : Engraving or perforating material to form a printing surface (e.g., printing plate, cylinder, or stencil))

Patent 5668934: Interface to sophisticated printers
(FACSIMILE AND STATIC PRESENTATION PROCESSING : STATIC PRESENTATION PROCESSING (E.G., PROCESSING DATA FOR PRINTER, ETC.) : Character or font : Engraving or perforating material to form a printing surface (e.g., printing plate, cylinder, or stencil))

Patent 5668935: Character output device
(FACSIMILE AND STATIC PRESENTATION PROCESSING : STATIC PRESENTATION PROCESSING (E.G., PROCESSING DATA FOR PRINTER, ETC.) : Character or font : Engraving or perforating material to form a printing surface (e.g., printing plate, cylinder, or stencil))

Patent 5668936: Printer for exclusively selecting a host apparatus and a command system for use with the selected host apparatus
(FACSIMILE AND STATIC PRESENTATION PROCESSING : STATIC PRESENTATION PROCESSING (E.G., PROCESSING DATA FOR PRINTER, ETC.) : Communication : Engraving or perforating material to form a printing surface (e.g., printing plate, cylinder, or stencil))

Patent 5668937: Output method and apparatus
(FACSIMILE AND STATIC PRESENTATION PROCESSING : STATIC PRESENTATION PROCESSING (E.G., PROCESSING DATA FOR PRINTER, ETC.) : Memory : Engraving or perforating material to form a printing surface (e.g., printing plate, cylinder, or stencil))

Patent 5668938: Control system for programming first print out time in a printing system
(FACSIMILE AND STATIC PRESENTATION PROCESSING : STATIC PRESENTATION PROCESSING (E.G., PROCESSING DATA FOR PRINTER, ETC.) : Memory : Engraving or perforating material to form a printing surface (e.g., printing plate, cylinder, or stencil))

Patent 5668939: Method and apparatus for rendering a solid three dimensional model from two dimensional input information including closed region recognizing
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS PROCESSING : Three-dimension : Space transformation : Z buffer (depth buffer))

Patent 5668940: Method and apparatus for anti-aliasing polygon edges in a computer imaging system
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS PROCESSING : Attributes (surface detail or characteristic, display attributes) : Color or intensity : Transparency (mixing color values) :)

Patent 5668941: Optimum implementation of X-Y clipping on pixel boundary
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS PROCESSING : Graphic manipulation (object processing or display attributes) : Clipping : Based on image data : Masking : Plural look up tables)

Patent 5668942: Generic system for describing and using resources for print engine scheduling
(FACSIMILE AND STATIC PRESENTATION PROCESSING : STATIC PRESENTATION PROCESSING (E.G., PROCESSING DATA FOR PRINTER, ETC.) : Emulation or plural modes : Engraving or perforating material to form a printing surface (e.g., printing plate, cylinder, or stencil))

Patent 5668943: Virtual shared disks with application transparent recovery
(ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY : DATA PROCESSING SYSTEM ERROR OR FAULT HANDLING : Reliability and availability : Fault recovery : By masking or reconfiguration : Of memory or peripheral subsystem : Redundant stored data accessed (e.g., duplicated data, error correction coded data, or other parity-type data) : Reconfiguration (e.g., adding a replacement storage component) :)

Patent 5668944: Method and system for providing performance diagnosis of a computer system
(ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY : DATA PROCESSING SYSTEM ERROR OR FAULT HANDLING : Reliability and availability : Performance monitoring for fault avoidance : Operator interface for diagnosing or testing)

Patent 5668945: Data security apparatus and method
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: SUPPORT : SECURITY : Tamper resistant)

Patent 5668946: System for cable communication wherein interpretively coded data transmitted from headend selectively initiate loop free instruction
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: MULTICOMPUTER DATA TRANSFERRING : NETWORK COMPUTER CONFIGURING : Accessing a remote server)

Patent 5668947: Microprocessor self-test apparatus and method
(ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY : DATA PROCESSING SYSTEM ERROR OR FAULT HANDLING : Reliability and availability : Fault locating (i.e., diagnosis or testing) : Particular access structure : Built-in hardware for diagnosing or testing within-system component (e.g., microprocessor test mode circuit, scan path) : Memory emulator feature)

Patent 5668948: Media streamer with control node enabling same isochronous streams to appear simultaneously at output ports or different streams to appear
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: MULTICOMPUTER DATA TRANSFERRING : COMPUTER-TO-COMPUTER PROTOCOL IMPLEMENTING : Computer-to-computer data streaming :)

Patent 5668949: System utilizing multiple address decode resources and decoder receiving address determines address corresponding to resource based on select
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: MULTICOMPUTER DATA TRANSFERRING : DISTRIBUTED DATA PROCESSING :)

Patent 5668950: Network service system and communication unit for game machine and game machine capable of using said network service system
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: MULTICOMPUTER DATA TRANSFERRING : REMOTE DATA ACCESSING : Accessing another computer's memory)

Patent 5668951: Avoiding congestion system for reducing traffic load on selected end systems which utilizing above their allocated fair shares to optimize
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: MULTICOMPUTER DATA TRANSFERRING : COMPUTER-TO-COMPUTER PROTOCOL IMPLEMENTING : Computer-to-computer data transfer regulating : Congestion avoiding :)

Patent 5668952: Method for resolving network address by sending reresolve request to nodes at selected time period after establishing address table, and
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: MULTICOMPUTER DATA TRANSFERRING : COMPUTER-TO-COMPUTER DATA ADDRESSING : Centralized controlling)

Patent 5668953: Method and apparatus for handling a complaint
(DATA PROCESSING: FINANCIAL, BUSINESS PRACTICE, MANAGEMENT, OR COST/PRICE DETERMINATION : AUTOMATED ELECTRICAL FINANCIAL OR BUSINESS PRACTICE OR MANAGEMENT ARRANGEMENT : Secure transaction (e.g., EFT/POS))

Patent 5668954: Instructional CD player
(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 : Abnormal condition or changing mode of system : Correction of error)

Patent 5668955: Controller for accessing services from multiple providers of services
(TELEPHONIC COMMUNICATIONS : WITH USAGE MEASUREMENT (E.G., CALL OR TRAFFIC REGISTER) : Call charge metering or monitoring : At subscriber station : Manually set (e.g., key and lock))

Patent 5668956: Bus system for use with information processing apparatus
(ELECTRICAL COMPUTERS AND DIGITAL DATA PROCESSING SYSTEMS: INPUT/OUTPUT : INTRASYSTEM CONNECTION (E.G., BUS AND BUS TRANSACTION PROCESSING) : Bus interface architecture : Bus bridge : Delay reduction)

Patent 5668957: Method and apparatus for providing virtual DMA capability on an adapter connected to a computer system bus with no DMA support
(ELECTRICAL COMPUTERS AND DIGITAL DATA PROCESSING SYSTEMS: INPUT/OUTPUT : INPUT/OUTPUT DATA PROCESSING : Direct Memory Accessing (DMA) : Concurrent data transferring)

Patent 5668958: Heterogeneous filing system with common API and reconciled file management rules
(ELECTRICAL COMPUTERS AND DIGITAL DATA PROCESSING SYSTEMS: INPUT/OUTPUT : INTRASYSTEM CONNECTION (E.G., BUS AND BUS TRANSACTION PROCESSING) : Bus interface architecture : Decentralized bus arbitration)

Patent 5668959: Creating multiple versions of panels from a single panel definition file
(DATA PROCESSING: PRESENTATION PROCESSING OF DOCUMENT, OPERATOR INTERFACE PROCESSING, AND SCREEN SAVER DISPLAY PROCESSING : OPERATOR INTERFACE (E.G., GRAPHICAL USER INTERFACE) : User interface development (e.g., GUI builder) : Group window)

Patent 5668960: Data processing device with means for displaying files in accordance with applications with which the files can be read
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS PROCESSING : Graphic manipulation (object processing or display attributes) : Merge or overlay : Image based : Priority based : Plural look up tables)

Patent 5668961: System and method for fast display of data objects in a table
(DATA PROCESSING: PRESENTATION PROCESSING OF DOCUMENT, OPERATOR INTERFACE PROCESSING, AND SCREEN SAVER DISPLAY PROCESSING : OPERATOR INTERFACE (E.G., GRAPHICAL USER INTERFACE) : For plural users or sites (e.g., network) : Interface customization or adaption (e.g., client server) : Access rights to interactive controls)

Patent 5668962: Window managing system for selecting a window in a user designated identifier list
(DATA PROCESSING: PRESENTATION PROCESSING OF DOCUMENT, OPERATOR INTERFACE PROCESSING, AND SCREEN SAVER DISPLAY PROCESSING : OPERATOR INTERFACE (E.G., GRAPHICAL USER INTERFACE) : On-screen workspace or object : Window or viewpoint : On-screen window list or index : Hierarchical)

Patent 5668964: Graphical user interface for creating a new notebook with a dragged page
(DATA PROCESSING: PRESENTATION PROCESSING OF DOCUMENT, OPERATOR INTERFACE PROCESSING, AND SCREEN SAVER DISPLAY PROCESSING : OPERATOR INTERFACE (E.G., GRAPHICAL USER INTERFACE) : On-screen workspace or object : Indexed book or notebook metaphor : Virtual input device (e.g., virtual keyboard))

Patent 5668965: Menu system for data processor
(DATA PROCESSING: PRESENTATION PROCESSING OF DOCUMENT, OPERATOR INTERFACE PROCESSING, AND SCREEN SAVER DISPLAY PROCESSING : OPERATOR INTERFACE (E.G., GRAPHICAL USER INTERFACE) : On-screen workspace or object : Menu or selectable iconic array (e.g., palette) : Window memory structure)

Patent 5668966: System and method for direct manipulation of search predicates using a graphical user interface
(DATA PROCESSING: PRESENTATION PROCESSING OF DOCUMENT, OPERATOR INTERFACE PROCESSING, AND SCREEN SAVER DISPLAY PROCESSING : OPERATOR INTERFACE (E.G., GRAPHICAL USER INTERFACE) : On-screen workspace or object : Hierarchy or network structure : Picking 3D objects)

Patent 5668967: Apparatus and methods for reducing numbers of read-modify-write cycles to a memory, and for improving DMA efficiency
(ELECTRICAL COMPUTERS AND DIGITAL DATA PROCESSING SYSTEMS: INPUT/OUTPUT : INPUT/OUTPUT DATA PROCESSING : Direct Memory Accessing (DMA) : Concurrent data transferring)

Patent 5668968: Two-level virtual/real set associative cache system and method with improved synonym detection
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: MEMORY : ADDRESSING COMBINED WITH SPECIFIC MEMORY CONFIGURATION OR SYSTEM : Addressing cache memories :)

Patent 5668969: Address selective emulation routine pointer address mapping system
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: MEMORY : ADDRESS FORMATION : Address mapping (e.g., conversion, translation) : Memory partitioning)

Patent 5668970: Method and apparatus for generating a file allocation table for a storage medium with no file allocation table using file storage
(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) : Directories and tables (e.g., DLAT, TLB))

Patent 5668971: Posted disk read operations performed by signalling a disk read complete to the system prior to completion of data transfer
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: MEMORY : STORAGE ACCESSING AND CONTROL : Specific memory composition : Accessing dynamic storage device : Circulating memory)

Patent 5668972: Method and system for efficient miss sequence cache line allocation utilizing an allocation control cell state to enable a selected match
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: MEMORY : STORAGE ACCESSING AND CONTROL : Hierarchical memories : Caching : Entry replacement strategy : Least recently used :)

Patent 5668973: Protection system for critical memory information
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: MEMORY : STORAGE ACCESSING AND CONTROL : Shared memory area : Memory access blocking : Coherency)

Patent 5668974: Memory with variable levels of interleaving and associated configurator circuit
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: MEMORY : STORAGE ACCESSING AND CONTROL : Control technique : Interleaving : Coherency)

Patent 5668975: Method of requesting data by interlacing critical and non-critical data words of multiple data requests and apparatus therefor
(ELECTRICAL COMPUTERS AND DIGITAL PROCESSING SYSTEMS: MEMORY : STORAGE ACCESSING AND CONTROL : Access timing : Memory access pipelining : With password or key)

Patent 5668976: Error correction method and apparatus for disk drive emulator
(DATA PROCESSING: STRUCTURAL DESIGN, MODELING, SIMULATION, AND EMULATION : EMULATION : Of peripheral device : Including logic)

Patent 5668977: Dockable computer system capable of electric and electromagnetic communication
(DATA PROCESSING: STRUCTURAL DESIGN, MODELING, SIMULATION, AND EMULATION : EMULATION : Software program (i.e., performance prediction))

Patent 5668978: Apparatus and method for synthesizing program specification from independent sets of tables
(DATA PROCESSING: STRUCTURAL DESIGN, MODELING, SIMULATION, AND EMULATION : EMULATION : Of instruction : I/O adapter (e.g., port, controller))

Patent 5668979: Storage of clipping plane data in successive bit planes of residual frame buffer memory
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS DISPLAY MEMORY SYSTEM : Addressing : Address manipulation : Address translation (e.g., between virtual and physical addresses) : Photosensor encoder)

Patent 5668980: System for performing rotation of pixel matrices
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHIC PROCESSING SYSTEM : Mechanical control (e.g., rotatable knob, slider))

 

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