Patents 5642023 - 5642278

 

 

Patent 5642023: Method and apparatus for the electronic control of electric motor driven golf car
(ELECTRICITY: MOTIVE POWER SYSTEMS : CONTROL OF BOTH ARMATURE (OR PRIMARY) CIRCUIT AND FIELD (OR SECONDARY) CIRCUIT : Responsive to direction, inclination or angular position of bodies)

Patent 5642024: Positioning apparatus and method with virtual transmission
(ELECTRICITY: MOTIVE POWER SYSTEMS : POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) : Plural servomotors : By deadband at null (e.g., threshold circuits))

Patent 5642025: Process and apparatus for the reduction of surges in switch-on current in the operation of a rotary current load
(ELECTRICITY: MOTIVE POWER SYSTEMS : INDUCTION MOTOR SYSTEMS : Primary circuit control : Starting control : Pole changing)

Patent 5642026: Windshield wiper system having reduced wipe speed at reversal points using variable frequency induction motor control
(ELECTRICITY: MOTIVE POWER SYSTEMS : INDUCTION MOTOR SYSTEMS : Primary circuit control : Condition responsive : Responsive to motor voltage)

Patent 5642027: Current-limited system for capacitive load powering
(ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING : CAPACITOR CHARGING OR DISCHARGING : With current sensing to detect proper battery connection (e.g., polarity, ripple, reverse current, etc.))

Patent 5642028: Combined rechargable battery and charger assembly
(ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING : CELL OR BATTERY CHARGER STRUCTURE : Having plug for A-C receptacle : Employing "jumper" cable)

Patent 5642029: Constant current battery charger with auxiliary output for portable apparatus
(ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING : BATTERY OR CELL CHARGING : With detection of current or voltage amplitude : Having solid-state control device : Having solid-state control device)

Patent 5642030: Charge control circuit
(ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING : WIND, SOLAR, THERMAL, OR FUEL-CELL SOURCE :)

Patent 5642031: Battery recharging system with state of charge detection that initially detects whether a battery to be charged is already at or near full
(ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING : BATTERY OR CELL CHARGING : Time control : Detection of current or voltage differential (e.g., slope, etc.) : Temperature compensation)

Patent 5642032: Charging method for a battery assembly including a plurality of secondary batteries
(ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING : BATTERY OR CELL CHARGING : With peak detection of current or voltage (e.g., delta-V or delta-I utilized, etc.) : Hysteresis type (e.g., antichattering, etc.))

Patent 5642033: Overload-protected and reference-voltage-loss-protected electronic voltage regulator for vehicular-type alternators that both tolerates
(ELECTRICITY: SINGLE GENERATOR SYSTEMS : AUTOMATIC CONTROL OF GENERATOR OR DRIVING MEANS : Plural conditions : Including an electrical condition : Plural electrical conditions : Voltage and current :)

Patent 5642034: Regulated power supply circuit permitting an adjustment of output current when the output thereof is grounded
(ELECTRICITY: POWER SUPPLY OR REGULATION SYSTEMS : OUTPUT LEVEL RESPONSIVE : Using a three or more terminal semiconductive device as the final control device : Linearly acting : With plural condition sensing : For protective system : With current sensor :)

Patent 5642035: Transfection high-voltage controller
(ELECTRICITY: POWER SUPPLY OR REGULATION SYSTEMS : OUTPUT LEVEL RESPONSIVE : Using a three or more terminal semiconductive device as the final control device : Switched (e.g., switching regulators) : With reference voltage circuitry)

Patent 5642036: Electrical consumption stabilizing method and apparatus
(ELECTRICITY: POWER SUPPLY OR REGULATION SYSTEMS : INPUT LEVEL RESPONSIVE : Using an impedance as the final control device)

Patent 5642037: Integrated circuit with fast starting function for reference voltage of reference current sources
(ELECTRICITY: POWER SUPPLY OR REGULATION SYSTEMS : SELF-REGULATING (E.G., NONRETROACTIVE) : Using a three or more terminal semiconductive device as the final control device : For current stabilization : Including parallel paths (e.g., current mirror) : With amplifier connected to or between current paths : In flyback path)

Patent 5642038: Method of detecting partial discharge using frequency spectrum analyzer
(ELECTRICITY: MEASURING AND TESTING : MEASURING, TESTING, OR SENSING ELECTRICITY, PER SE : Analysis of complex waves : Frequency spectrum analyzer : With slope detector)

Patent 5642039: Handheld vector network analyzer
(ELECTRICITY: MEASURING AND TESTING : MEASURING, TESTING, OR SENSING ELECTRICITY, PER SE : Frequency of cyclic current or voltage (e.g., cyclic counting etc.) : By phase comparison : With phase lock : With counter)

Patent 5642040: Electrooptic probe for measuring voltage of an object having a high permittivity film fixed on an end face of a reflecting film fixed on an
(ELECTRICITY: MEASURING AND TESTING : MEASURING, TESTING, OR SENSING ELECTRICITY, PER SE : Using radiant energy : Conductive field (e.g., mercury))

Patent 5642041: Alternating current sensor employing parallel plates and having high dynamic range and accuracy
(ELECTRICITY: MEASURING AND TESTING : MEASURING, TESTING, OR SENSING ELECTRICITY, PER SE : With coupling means (e.g., attenuator, shunt) : Transformer (e.g., split core admits conductor carrying unknown current) : Digital voltmeters)

Patent 5642042: Rotary motion measuring device with a rotating signal generator ring and a stationary snugly fitted sensor with a protective housing around the
(ELECTRICITY: MEASURING AND TESTING : ELECTRICAL SPEED MEASURING : Including speed-related frequency generator : Including magnetic detector : With extent-of-travel indicator)

Patent 5642043: Linear position sensor
(ELECTRICITY: MEASURING AND TESTING : MAGNETIC : Displacement : Linear : Magnetoresistive)

Patent 5642044: Method and apparatus for exciting a three-phase variable reluctance position sensor
(ELECTRICITY: MEASURING AND TESTING : MAGNETIC : Displacement : Rotary : Magnetoresistive)

Patent 5642045: Magnetic field gradiometer with improved correction circuits
(ELECTRICITY: MEASURING AND TESTING : MAGNETIC : Magnetometers : Induced voltage-type sensor)

Patent 5642046: Low power magnetometer circuits requiring a single switching cycle
(ELECTRICITY: MEASURING AND TESTING : MAGNETIC : Magnetometers : Saturable core magnetometers : Plural sensors)

Patent 5642047: Method for correcting MR phase information image data
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE : Using a nuclear resonance spectrometer system : To obtain localized resonance within a sample :)

Patent 5642048: RF resonator for NMR
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE : Spectrometer components : Including a test sample and control sample)

Patent 5642049: Magnetic field producing apparatus and manufacturing method
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE : Spectrometer components : Including a test sample and control sample)

Patent 5642050: Plural frequency method and system for identifying metal objects in a background environment using a target model
(ELECTRICITY: MEASURING AND TESTING : OF GEOPHYSICAL SURFACE OR SUBSURFACE IN SITU : For small object detection or location : Using movable transmitter and receiver : Of the beat frequency type)

Patent 5642051: Method and apparatus for surveying and monitoring a reservoir penetrated by a well including fixing electrodes hydraulically isolated within a
(ELECTRICITY: MEASURING AND TESTING : OF GEOPHYSICAL SURFACE OR SUBSURFACE IN SITU : Using electrode arrays, circuits, structure, or supports : Coupled to artificial current source : Including separate pickup of generated fields or potentials : While drilling)

Patent 5642052: Hand-held tester for receptacle ground fault circuit interrupters
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Instruments and devices for fault testing : Having a lamp or light indicator : Sheet material)

Patent 5642053: Fluid identification sensor
(ELECTRICITY: MEASURING AND TESTING : IMPEDANCE, ADMITTANCE OR OTHER QUANTITIES REPRESENTATIVE OF ELECTRICAL STIMULUS/RESPONSE RELATIONSHIPS : Lumped type parameters : Using resistance or conductance measurement : With frequency response, change or processing circuit : Including a tuned or resonant circuit : Including corrosion or erosion)

Patent 5642054: Active circuit multi-port membrane probe for full wafer testing
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : With probe elements : Using electro-optic device)

Patent 5642055: Electrical interconnect using particle enhanced joining of metal surfaces
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : With probe elements : Probe contact enhancement : Of reflected test signal)

Patent 5642056: Probe apparatus for correcting the probe card posture before testing
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : With probe elements : Probe alignment or positioning : Of reflected test signal)

Patent 5642057: Testable embedded microprocessor and method of testing same
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : DUT including test circuit : Cantilever)

Patent 5642058: Periphery input/output interconnect structure
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : MULTIFUNCTIONAL OR PROGRAMMABLE (E.G., UNIVERSAL, ETC.) : Array (e.g., PLA, PAL, PLD, etc.) : Significant integrated structure, layout, or layout interconnections : With clocking)

Patent 5642059: Bus driver circuit with overvoltage protection
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : INTERFACE (E.G., CURRENT DRIVE, LEVEL SHIFT, ETC.) : Current driving (e.g., fan in/out, off chip driving, etc.) : Field-effect transistor : Bus driving : Having plural output pull-up or pull-down transistors)

Patent 5642060: Clock generator
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : CLOCKING OR SYNCHRONIZING OF LOGIC STAGES OR GATES : Current driving (e.g., fan in/out, off chip driving, etc.))

Patent 5642061: Short circuit current free dynamic logic clock timing
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : CLOCKING OR SYNCHRONIZING OF LOGIC STAGES OR GATES : Field-effect transistor : Two or more clocks (e.g., phase clocking, etc.) : MOSFET : Having plural output pull-up or pull-down transistors)

Patent 5642062: Comparator circuit operating on variable current
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC SIGNAL DISCRIMINATING (E.G., COMPARING, SELECTING, ETC.) WITHOUT SUBSEQUENT CONTROL : By amplitude : Comparison between plural varying inputs : Differential input : Current mirror : Cross-coupled)

Patent 5642063: Current-saving detection for input signal level exceeding a threshold value
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC SIGNAL DISCRIMINATING (E.G., COMPARING, SELECTING, ETC.) WITHOUT SUBSEQUENT CONTROL : By amplitude : Input signal compared to plural fixed references : Reference derived by feedback)

Patent 5642064: Voltage to current conversion circuit including a differential amplifier
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SIGNAL CONVERTING, SHAPING, OR GENERATING : Converting input voltage to output current or vice versa : With logic or bistable circuit)

Patent 5642065: Zero-voltage switching circuitry, as for use in resonant inverters
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SIGNAL CONVERTING, SHAPING, OR GENERATING : Current driver : Having inductive load (e.g., coil, etc.) : Sample and hold)

Patent 5642066: Linear ramp generator having two voltage controlled current sources
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SIGNAL CONVERTING, SHAPING, OR GENERATING : Generating sawtooth or triangular output : With current source or current mirror : With particular tube or distributed parameter element)

Patent 5642067: Variable slew rate pulse generator
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SIGNAL CONVERTING, SHAPING, OR GENERATING : Generating sawtooth or triangular output : With slope or duration control : With particular tube or distributed parameter element)

Patent 5642068: Clock period dependent pulse generator
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SIGNAL CONVERTING, SHAPING, OR GENERATING : Rectangular (e.g., clock, etc.) or pulse waveform width control : Having negative resistance device (e.g., tunnel diode, etc.))

Patent 5642069: Clock signal loss detection and recovery apparatus in multiple clock signal system
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SIGNAL CONVERTING, SHAPING, OR GENERATING : Clock or pulse waveform generating : Clock fault compensation or redundant clocks : Electron tube)

Patent 5642070: Signal processing circuit and system for detection of absolute value
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC INPUT TO OUTPUT FUNCTION : Absolute value : With vacuum tube)

Patent 5642071: Transit mixer with current mode input
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC INPUT TO OUTPUT FUNCTION : Combining of plural signals : Product : Differential amplifier : Field-effect type device)

Patent 5642072: High voltage generator circuit
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC IDENTIFIABLE DEVICE, CIRCUIT, OR SYSTEM : With specific source of supply or bias voltage : Having particular substrate biasing : Having stabilized bias or power supply level : Hyperconductive diode)

Patent 5642073: System powered with inter-coupled charge pumps
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC IDENTIFIABLE DEVICE, CIRCUIT, OR SYSTEM : With specific source of supply or bias voltage : Having particular substrate biasing : Having stabilized bias or power supply level : Charge pump details : With emitter follower)

Patent 5642074: Amplifier circuit with reduced turn-on and turn-off transients
(AMPLIFIERS : COMBINED WITH AUTOMATIC AMPLIFIER DISABLING SWITCH MEANS : Having signal applied to magnetic means)

Patent 5642075: Sampled data automatic gain control
(AMPLIFIERS : WITH CONTROL OF POWER SUPPLY OR BIAS VOLTAGE : With control of input electrode or gain control electrode bias : D.C. coupling)

Patent 5642076: No turn-on pop noise amplifier
(AMPLIFIERS : HUM OR NOISE OR DISTORTION BUCKING INTRODUCED INTO SIGNAL CHANNEL : Electron tube or diode as impedance)

Patent 5642077: Wide band constant gain amplifier
(AMPLIFIERS : WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) : Including differential amplifier : Having field effect transistor :)

Patent 5642078: Amplifier having frequency compensation by gain degeneration
(AMPLIFIERS : WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) : Including differential amplifier : Having field effect transistor :)

Patent 5642079: Amplifier with pole/zero compensation
(AMPLIFIERS : WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) : Including differential amplifier : Having signal feedback means :)

Patent 5642080: Low noise amplifier in monolithic integrated circuit
(AMPLIFIERS : WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) : Including field effect transistor : Having transformer)

Patent 5642081: FMCW VCO closed loop linearizer
(OSCILLATORS : AUTOMATIC FREQUENCY STABILIZATION USING A PHASE OR FREQUENCY SENSING MEANS : Search sweep of oscillator :)

Patent 5642082: Loop filter level detection circuit and method
(OSCILLATORS : AUTOMATIC FREQUENCY STABILIZATION USING A PHASE OR FREQUENCY SENSING MEANS : With reference oscillator or source : Signal or phase comparator : With motor comparator)

Patent 5642083: High-frequency switch
(WAVE TRANSMISSION LINES AND NETWORKS : PLURAL CHANNEL SYSTEMS : Having branched circuits : Including switching means : Having semiconductor operating means :)

Patent 5642084: Dielectric filter having respective capacitance gaps flushed with the inner surface of corresponding holes
(WAVE TRANSMISSION LINES AND NETWORKS : COUPLING NETWORKS : Wave filters including long line elements : Magnetostrictive wave transmission path)

Patent 5642085: TM mode dielectric resonator having coupling holes with voids
(WAVE TRANSMISSION LINES AND NETWORKS : RESONATORS (DISTRIBUTED PARAMETER TYPE) : Dielectric type : Providing negative resistance)

Patent 5642086: Magnetic switch for coaxial transmission lines
(ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS : ELECTROMAGNETICALLY ACTUATED SWITCHES : Radio frequency switch (e.g., T/R switch) :)

Patent 5642087: Generating highly uniform electromagnetic field characteristics
(ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS : MAGNETS AND ELECTROMAGNETS : Superconductive type : With coil structure)

Patent 5642088: Magnet support sleeve for linear electromechanical transducer
(ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS : MAGNETS AND ELECTROMAGNETS : With magneto-mechanical motive device (e.g., electromagnet with armature) : With relatively movable coil and permanent magnet (e.g., D'Arsonval type) position on the cathode ray tube) : With electric or magnetic-shielding means)

Patent 5642089: Magnetic holder for contact sensor
(ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS : MAGNETS AND ELECTROMAGNETS : Work or object holding type : Coil shape, structure or material)

Patent 5642090: Chip fuse
(ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES : ELECTROTHERMALLY ACTUATED SWITCHES : Fusible element actuated : Fusible link or element structure or material : With nonconductive core (e.g., printed circuit) : Rotary selector means)

Patent 5642091: Method and apparatus for data transmission in a textile machine
(COMMUNICATIONS: ELECTRICAL : SYSTEMS : Signal over power line : Modulation technique : With independent manual controller)

Patent 5642092: Evacuation assistance system
(COMMUNICATIONS: ELECTRICAL : SYSTEMS : Plural (e.g., concurrent auxiliary) single indications (e.g., light flashes when bell rings) : Bowling)

Patent 5642093: Warning system for vehicle
(COMMUNICATIONS: ELECTRICAL : LAND VEHICLE ALARMS OR INDICATORS : Internal alarm or indicator responsive to a condition of the vehicle : Operation efficiency (e.g., engine performance, driver habits) : Accessory (e.g., speaker, radio face plate, etc.))

Patent 5642094: Type-of-stop expectation warning
(COMMUNICATIONS: ELECTRICAL : LAND VEHICLE ALARMS OR INDICATORS : External signal light system : Brake light : With plural bulbs sequentially flashed)

Patent 5642095: Alarm for a card shaped object
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Article placement or removal (e.g., anti-theft) : Currency, credit card, or container therefor (e.g., wallet or handbag) : Specified connector (e.g., phone jack-type plug))

Patent 5642096: Device for prevention of ulcers in the feet of diabetes patients
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Human or animal : Detectable device on protected article (e.g., "tag"))

Patent 5642097: Remotely readable fuel tank indicator system
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Fluent material : Material level : Liquid : Having means locking device to article)

Patent 5642098: Capacitive oil water emulsion sensor system
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Fluent material : Material level : Liquid : Having means locking device to article)

Patent 5642099: Light scattering type smoke detector
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Fluent material : Particle suspension in fluid : Smoke : Photoelectric : Pivoted arm)

Patent 5642100: Method and apparatus for controlling thermal runaway in a battery backup system
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Condition of electrical apparatus : Battery : By current : Photoelectric)

Patent 5642101: Control apparatus for use in a dwelling
(COMMUNICATIONS: ELECTRICAL : SELECTIVE : Monitoring in addition to control (e.g., supervisory) : Including addressing : Polling or roll call : Step-by-step)

Patent 5642102: Pager with automatic detection of insertion into holster
(COMMUNICATIONS: ELECTRICAL : SELECTIVE : Having indication or alarm (e.g., location indication) : Code responsive (i.e., paging) : Message presentation : Display : News information provider (e.g., sports, weather, etc.))

Patent 5642103: Transponder used in a remote identification system
(COMMUNICATIONS: ELECTRICAL : SELECTIVE : Interrogation response : Additional control : Programming (e.g., read/write) : Audible)

Patent 5642104: Audible alert for automatic shutoff circuit
(COMMUNICATIONS: ELECTRICAL : SELECTIVE : Frequency responsive actuation : Wireless link : Radio link)

Patent 5642105: Bearing with an arrangement for obtaining an indication of the temperature within the bearing
(COMMUNICATIONS: ELECTRICAL : CONTINUOUSLY VARIABLE INDICATING (E.G., TELEMETERING) : Condition responsive : Temperature : Using particular sync)

Patent 5642106: Visual incremental turn detector
(COMMUNICATIONS: ELECTRICAL : VEHICLE POSITION INDICATION : Rudder position indicator)

Patent 5642107: Telecommunications system for dynamically modifying and indicating present navigational status
(COMMUNICATIONS: ELECTRICAL : VEHICLE POSITION INDICATION : Map display : Including particular display structure (e.g., detachable, rolling map sheet, etc.) : Intersection turn guidance)

Patent 5642108: Chordic keyboard system for generating a signal in response to a chord that is assigned using a correlation based on a composite
(CODED DATA GENERATION OR CONVERSION : BODILY ACTUATED CODE GENERATOR : Including keyboard or keypad : Having optical waveguide)

Patent 5642109: Flexible inflatable multi-chamber signal generator
(CODED DATA GENERATION OR CONVERSION : BODILY ACTUATED CODE GENERATOR : Including keyboard or keypad : Having optical waveguide)

Patent 5642110: Memory mapped keyboard controller
(CODED DATA GENERATION OR CONVERSION : BODILY ACTUATED CODE GENERATOR : Including keyboard or keypad : With particular key scanning feature : With rollover feature (i.e., antidoublestrike))

Patent 5642111: High efficiency encoding or decoding method and device
(CODED DATA GENERATION OR CONVERSION : DIGITAL CODE TO DIGITAL CODE CONVERTERS : With rotary dial)

Patent 5642112: Method and apparatus for performing LZW data compression utilizing an associative memory
(CODED DATA GENERATION OR CONVERSION : DIGITAL CODE TO DIGITAL CODE CONVERTERS : Adaptive coding : Pressure sensitive actuation)

Patent 5642113: Methods and devices for converting a sequence of m-bit information words to a modulated signal and including that signal on a record carrier,
(CODED DATA GENERATION OR CONVERSION : DIGITAL CODE TO DIGITAL CODE CONVERTERS : To or from minimum d.c. level codes : Binary to or from ternary)

Patent 5642114: Variable length code decoder using a content addressable memory with match inhibiting gate
(CODED DATA GENERATION OR CONVERSION : DIGITAL CODE TO DIGITAL CODE CONVERTERS : To or from variable length codes : To or from Morse code)

Patent 5642115: Variable length coding system
(CODED DATA GENERATION OR CONVERSION : DIGITAL CODE TO DIGITAL CODE CONVERTERS : To or from variable length codes : To or from Morse code)

Patent 5642116: Self calibrating segmented digital-to-analog converter
(CODED DATA GENERATION OR CONVERSION : CONVERTER CALIBRATION OR TESTING : Temperature compensation)

Patent 5642117: Process and apparatus for conversion of an N-bit digital data word into an analog voltage value
(CODED DATA GENERATION OR CONVERSION : ANALOG TO OR FROM DIGITAL CONVERSION : Digital to analog conversion : With intermediate conversion of digital value to time interval : With rollover feature (i.e., antidoublestrike))

Patent 5642118: Apparatus for dissipating electromagnetic waves
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : RADIO WAVE ABSORBER : With particular geometric configuration :)

Patent 5642119: Electronic parking meter and system
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : RETURN SIGNAL CONTROLS EXTERNAL DEVICE : Device actuated by presence of land vehicle : With terrain avoidance or alarm)

Patent 5642120: Antenna device and wireless apparatus employing the same
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : With radio cabinet :)

Patent 5642121: High-gain, waveguide-fed antenna having controllable higher order mode phasing
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : Wave guide type (e.g., horn) : With horn : With main and subreflector (Casse-grain type))

Patent 5642122: Spacecraft antennas and beam steering methods for satellite communciation system
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : With support for antenna, reflector or director : Adjustable or collapsible support : Foldable : Quarter-wave transformer)

Patent 5642123: Apparatus for electrically driving a retractable antenna
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : Rod type : Telescoping : Flexible rod actuated : Quarter-wave transformer)

Patent 5642124: Image processing system
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : PLURAL DISPLAY SYSTEMS : Controlling the condition of display elements)

Patent 5642125: Two path liquid crystal light valve color display
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : PLURAL PHYSICAL DISPLAY ELEMENT CONTROL SYSTEM (E.G., NON-CRT) : Display elements arranged in matrix (e.g., rows and columns) : Light-controlling display elements : Liquid crystal display elements (LCD) : Resistor-diode arrangement)

Patent 5642126: Driving circuit for driving a display apparatus and a method for the same
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : PLURAL PHYSICAL DISPLAY ELEMENT CONTROL SYSTEM (E.G., NON-CRT) : Display elements arranged in matrix (e.g., rows and columns) : Light-controlling display elements : Liquid crystal display elements (LCD) : Waveform generation : Redundancy (e.g., plural control elements or electrodes))

Patent 5642127: Display driver
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : PLURAL PHYSICAL DISPLAY ELEMENT CONTROL SYSTEM (E.G., NON-CRT) : Display elements arranged in matrix (e.g., rows and columns) : Light-controlling display elements : Liquid crystal display elements (LCD) : Waveform generation : Three or more voltages : Smooth or continuous)

Patent 5642128: Display control device
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : PLURAL PHYSICAL DISPLAY ELEMENT CONTROL SYSTEM (E.G., NON-CRT) : Display elements arranged in matrix (e.g., rows and columns) : Light-controlling display elements : Liquid crystal display elements (LCD) : Waveform generation : Field period polarity reversal : Smooth or continuous)

Patent 5642129: Color sequential display panels
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : PLURAL PHYSICAL DISPLAY ELEMENT CONTROL SYSTEM (E.G., NON-CRT) : Display elements arranged in matrix (e.g., rows and columns) : Light-controlling display elements : Liquid crystal display elements (LCD) : Specific display element control means (e.g., latches, memories, logic) : Particular row or column control (e.g., shift register) : Smooth or continuous)

Patent 5642130: Display array and power control circuit
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : PLURAL PHYSICAL DISPLAY ELEMENT CONTROL SYSTEM (E.G., NON-CRT) : Display elements arranged in matrix (e.g., rows and columns) : Plural mechanically movable display elements : With a permanent magnet placed on movable display elements : Input/output liquid crystal display panel)

Patent 5642131: Method and apparatus for cursor positioning
(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 : Cursor : Proximity detection : Dynamically changed appearance (e.g., animated or live action))

Patent 5642132: Circuit arrangement for controlling the display of a cursor symbol of variable magnitude and shape in a cursor field of variable magnitude
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : DISPLAY PERIPHERAL INTERFACE INPUT DEVICE : Cursor mark position control device : Temporal interpolation or processing)

Patent 5642133: Split interval gray level addressing for LCDs
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : DISPLAY DRIVING CONTROL CIRCUITRY : Intensity or color driving control (e.g., gray scale) : Having common base or substrate)

Patent 5642134: Integrated tablet device having position detecting function and image display function
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : DISPLAY PERIPHERAL INTERFACE INPUT DEVICE : Touch panel : Including impedance detection : Optical detector)

Patent 5642135: Image processor
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS DISPLAY MEMORY SYSTEM : Frame buffer : Memory for storing video data : Data transfer between system memory display memory)

Patent 5642136: Method and apparatus for screen refresh bandwidth reduction for video display modes
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS PROCESSING : Character generating : Straight line)

Patent 5642137: Color selecting method
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS PROCESSING : Attributes (surface detail or characteristic, display attributes) : Color or intensity : Color bit data modification or conversion : Change in number of bits for a designated color (e.g., 4 bits to 8 bits, 8 bits to 4 bits) : Plural look up tables)

Patent 5642138: Display control system using a different clock in the graphics mode from that in the text mode in accessing an image memory
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS DISPLAY MEMORY SYSTEM : Addressing : Page mode : Address translation (e.g., between virtual and physical addresses))

Patent 5642139: PCMCIA video card
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS DISPLAY MEMORY SYSTEM : Frame buffer : Memory for storing video data : Data transfer between system memory display memory)

Patent 5642140: Rotational arm assembly for a printing mechanism of a recorder and copy machine incorporating same
(RECORDERS : MARKERS AND/OR DRIVING MEANS THEREFOR : Drum)

Patent 5642141: Low energy heat activated transfer printing process
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Combined : Reproduction (e.g., facsimile, copier, etc.) :)

Patent 5642142: Variable halftone operation inkjet printheads
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Controller : Of ejector : Creating plural tones : Full-line array)

Patent 5642143: Ink-jet hard copy apparatus having print cartridge biasing mechanism and cartridge loading method
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Ejector mechanism (i.e., print head) : Modular : Nozzles)

Patent 5642144: Rechargeable pen for printer
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Fluid or fluid source handling means : Fluid supply system : Cartridge : With integral ejector : Drop sensors)

Patent 5642145: Image forming apparatus
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : ELECTRIC MARKING APPARATUS OR PROCESSES : Housing)

Patent 5642146: Printer having transport device for correcting image distortion
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : ELECTRIC MARKING APPARATUS OR PROCESSES : Electrostatic : Photo scanning : Light emitting diodes : Laminated head including charged particle generation layer)

Patent 5642147: Thermal printer with label printing mode
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : THERMAL MARKING APPARATUS OR PROCESSES : By electrochemical)

Patent 5642148: Thermal head apparatus with integrated circuits and current detection
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : THERMAL MARKING APPARATUS OR PROCESSES : Having driving circuitry for recording means : Specific conductor means (e.g., electrode, conducting pattern, etc.))

Patent 5642149: Apparatus and method for printing with a non-refractive imaging system
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : LIGHT OR BEAM MARKING APPARATUS OR PROCESSES : Scan of light : Plural beam scan : Specific optical structure : Including switching means)

Patent 5642150: Light deflector
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : LIGHT OR BEAM MARKING APPARATUS OR PROCESSES : Scan of light : Specific optical structure : Having mounting or supporting means : Specific lens)

Patent 5642151: Distribution of television signals to workstations
(INTERACTIVE VIDEO DISTRIBUTION SYSTEMS : LOCAL VIDEO DISTRIBUTION SYSTEM : Multiunit or multiroom structure (e.g., home, hospital, hotel, office building, school, etc.) : Airplane)

Patent 5642152: Method and system for scheduling the transfer of data sequences utilizing an anti-clustering scheduling algorithm
(INTERACTIVE VIDEO DISTRIBUTION SYSTEMS : USER-REQUESTED VIDEO PROGRAM SYSTEM : Video-on-demand : Server or headend : Control process : Scheduling (e.g., grouping users together) : In accordance with server or network congestion)

Patent 5642153: Consumer interface for a digital television system
(INTERACTIVE VIDEO DISTRIBUTION SYSTEMS : OPERATOR INTERFACE : To facilitate tuning or selection of video signal : Electronic program guide : For displaying additional information :)

Patent 5642154: Cable maintenance system
(INTERACTIVE VIDEO DISTRIBUTION SYSTEMS : VIDEO DISTRIBUTION SYSTEM WITH UPSTREAM COMMUNICATION : Remote testing of cable system : Server or headend)

Patent 5642155: Method and apparatus for supporting two-way telecommunications on CATV networks
(INTERACTIVE VIDEO DISTRIBUTION SYSTEMS : VIDEO DISTRIBUTION SYSTEM WITH UPSTREAM COMMUNICATION : Transmission network : Having significant intermediate network unit (e.g., hub, substation, etc.) : Conveyed in video image)

Patent 5642156: Video-conference network managing system having function for managing each site and each schedule concerning video conference
(TELEVISION : TWO-WAY VIDEO AND VOICE COMMUNICATION (E.G., VIDEOPHONE) : Conferencing (e.g., loop) : Conferencing with multipoint control unit :)

Patent 5642157: Electronic endoscope apparatus usable in combination with medical diagnosis apparatus
(TELEVISION : SPECIAL APPLICATIONS : With endoscope : Image magnifying)

Patent 5642158: Method and apparatus to detect capillary indentations
(TELEVISION : SPECIAL APPLICATIONS : Manufacturing : Electronic circuit chip or board (e.g., positioning) : Color sequential illumination)

Patent 5642159: Method for tensioning ID saw blades and an apparatus for monitoring tensioning of an ID saw blades
(TELEVISION : SPECIAL APPLICATIONS : Manufacturing : Position detection : Alignment or positioning : With alternating polarization)

Patent 5642160: Digital image capture system for photo identification cards
(TELEVISION : SPECIAL APPLICATIONS : Observation of or from a specific location (e.g., surveillance) : Access control : Motion detection)

Patent 5642161: Color monitoring apparatus
(TELEVISION : MONITORING, TESTING, OR MEASURING : Monitor : Vectorscope : With rotating reflector)

Patent 5642162: Charge transfer device having a signal processing circuit for correcting output voltage
(TELEVISION : CAMERA, SYSTEM AND DETAIL : Combined image signal generator and general image signal processing : Including noise or undesired signal reduction : Using distinct luminance image sensor)

Patent 5642163: Imaging apparatus for switching the accumulative electric charge of an image pickup device
(TELEVISION : CAMERA, SYSTEM AND DETAIL : Solid-state image sensor : Accumulation or integration time responsive to light or signal intensity : Frequency separable signals)

Patent 5642164: Light spot position measuring apparatus having orthogonal cylindrical lenses
(TELEVISION : CAMERA, SYSTEM AND DETAIL : Optics : Power saving mode)

Patent 5642165: Motion picture encoding method and apparatus
(PULSE OR DIGITAL COMMUNICATIONS : BANDWIDTH REDUCTION OR EXPANSION : Television or motion video signal : Adaptive : Accumulator or up/down counter)

Patent 5642166: Bi-directional motion estimation method and apparatus thereof
(PULSE OR DIGITAL COMMUNICATIONS : BANDWIDTH REDUCTION OR EXPANSION : Television or motion video signal : Predictive : Bidirectional : Subband coding)

Patent 5642167: TV picture compression and expansion
(PULSE OR DIGITAL COMMUNICATIONS : BANDWIDTH REDUCTION OR EXPANSION : Television or motion video signal : Block coding : Discrete cosine)

Patent 5642168: High resolution picture image processing method and system
(TELEVISION : FORMAT CONVERSION : Scan rate variation)

Patent 5642169: Television signal converting apparatus
(TELEVISION : FORMAT CONVERSION : Conversion between standards with different aspect ratios : Specified chrominance signal)

Patent 5642170: Method and apparatus for motion compensated interpolation of intermediate fields or frames
(TELEVISION : FORMAT CONVERSION : Changing number of fields for standard conversion : Frequency change of subcarrier)

Patent 5642171: Method and apparatus for synchronizing audio and video data streams in a multimedia system
(TELEVISION : SYNCHRONIZATION : Locking of video or audio to reference timebase : Audio to video : Color television)

Patent 5642172: Image processing system for adjusting the image characteristics of a display system
(TELEVISION : IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION : Display controlled by ambient light : Specified color (e.g., saturation and contrast control) : Marker or pointer generator)

Patent 5642173: Gain adjusting circuit for field-sequential signal
(TELEVISION : IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION : Color balance or temperature (e.g., white balance) : Receiver type : By phase change of chrominance signal or subcarrier)

Patent 5642174: Scene change detecting device
(TELEVISION : IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION : Motion dependent key signal generation or scene change detection : Diode)

Patent 5642175: Color cathode ray tube display device and method of eliminating the influence of an external magnetic field
(TELEVISION : VIDEO DISPLAY : Cathode-ray tube : With distortion, alignment or focus : Color TV)

Patent 5642176: Color filter substrate and liquid crystal display device
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : PARTICULAR STRUCTURE : Having significant detail of cell structure only : Filter : Color filter : For supertwisted nematic liquid crystal)

Patent 5642177: Detachable sunglasses with magnets
(OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING : SPECTACLES AND EYEGLASSES : With antiglare or shading : Removable and/or adjustable filters or screens (e.g., clip-on type) : Having support or cabinet)

Patent 5642178: Sports eyeglasses with soft, resilient connector pads
(OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING : SPECTACLES AND EYEGLASSES : Temples : Brace arm extends along edge of lens)

Patent 5642180: Photographic camera with information reading function
(PHOTOGRAPHY : EXPOSURE DATA FROM FILM CONTAINER : With power supply detail)

Patent 5642181: Image exposure apparatus
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : With focusing or projection screen : Reflector in optical path : Including)

Patent 5642182: Scanning apparatus with means to control the frequency of vibrations within the scanner
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : Focus or magnification control : Reflector between original and photo-sensitive paper)

Patent 5642183: Spatial filter used in a reduction-type projection printing apparatus
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : Illumination systems or details : Including shutter, diaphragm, polarizer or filter : Vertical optical path)

Patent 5642184: Method and apparatus for vacuum contact printing
(PHOTOCOPYING : CONTACT PRINTING : Fluid pressure retention of carrier and receiver in exposure position : With plural webs of indeterminate length (e.g., motion picture film))

Patent 5642185: Automatic termination of screen saver mode on a display of reproduction apparatus
(ELECTROPHOTOGRAPHY : MACHINE OPERATION : Operator interface (e.g., display control panel) : User access)

Patent 5642186: Shim-seal device in rotator assembly of toner hopper
(ELECTROPHOTOGRAPHY : HAVING PARTICULAR STRUCTURE : Particle or contaminant control)

Patent 5642187: Process cartridge, image forming apparatus usable therewith and image forming system
(ELECTROPHOTOGRAPHY : HAVING PARTICULAR STRUCTURE : Modular or displaceable : Process cartridge unit : Developer seal)

Patent 5642188: Wet-type electrophotographic image formation method
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Development : Liquid development : Bias voltage)

Patent 5642189: Color sensor simulating standard source illuminant
(OPTICS: MEASURING AND TESTING : WITH PLURAL DIVERSE TEST OR ART : Lamp attachments)

Patent 5642190: Dual-axis plasma imaging system for use in spectroscopic analysis
(OPTICS: MEASURING AND TESTING : BY DISPERSED LIGHT SPECTROSCOPY : With sample excitation (e.g., burning) : By high frequency field (e.g., plasma discharge) : Including sputtering)

Patent 5642191: Multi-channel imaging spectrophotometer
(OPTICS: MEASURING AND TESTING : BY DISPERSED LIGHT SPECTROSCOPY : Utilizing a spectrometer : Having beam modulation)

Patent 5642192: Dual spectrometer color sensor
(OPTICS: MEASURING AND TESTING : BY DISPERSED LIGHT SPECTROSCOPY : Utilizing a spectrometer : Having diffraction grating means : Prior to testing)

Patent 5642193: Particle counter employing a solid-state laser with an intracavity view volume
(OPTICS: MEASURING AND TESTING : BY PARTICLE LIGHT SCATTERING : With photocell detection : At right angles to the light beam (e.g., nephelometer) : With diffraction grating means)

Patent 5642194: White light velocity interferometer
(OPTICS: MEASURING AND TESTING : BY LIGHT INTERFERENCE (E.G., INTERFEROMETER) : For dimensional measurement : Having short coherence length source : Contour or profile)

Patent 5642195: Dispersion interferometer using orthogonally polarized waves
(OPTICS: MEASURING AND TESTING : BY LIGHT INTERFERENCE (E.G., INTERFEROMETER) : Having polarization : For dimensional measurement (e.g., thickness gap, alignment, profile))

Patent 5642196: Method and apparatus for measuring the thickness of a film using low coherence reflectometry
(OPTICS: MEASURING AND TESTING : DIMENSION : Thickness : Of light permeable material : Moire)

Patent 5642197: System and method for enhancing color seperation utilizing multiple pass scanner in a single pass color scanner
(OPTICS: MEASURING AND TESTING : BY SHADE OR COLOR : With color transmitting filter : Including rotating sequential filters : Including liquid filter comparison)

Patent 5642198: Method of inspecting moving material
(OPTICS: MEASURING AND TESTING : BY MONITORING OF WEBS OR THREAD : For flaws or imperfections : Drum or endless tape)

Patent 5642199: Copier having a security function
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Recording apparatus : Scanning)

Patent 5642200: Duplex image recording apparatus with memory
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Recording apparatus : Scanning)

Patent 5642201: Electrographic copying machine
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Specific image-processing circuitry)

Patent 5642202: Scan image target locator system for calibrating a printing system
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Facsimile measuring, testing, or calibrating : Composite image)

Patent 5642203: Method of enlarging and processing image data
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Specific signal processing circuitry : Image processing : Picture size conversion : Variable threshold determined by image or other condition (e.g., adaptive thresholding))

Patent 5642204: Error diffusion method
(FACSIMILE AND STATIC PRESENTATION PROCESSING : STATIC PRESENTATION PROCESSING (E.G., PROCESSING DATA FOR PRINTER, ETC.) : Attribute control : Multi-level image reproduction (e.g., gray level reproduction) : Error diffusion in gray level or halftone generation :)

Patent 5642205: Method and system for printing a simplex fax cover when in a duplex fax printing mode
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Specific signal processing circuitry : Facsimile control unit : Picture signal thresholding)

Patent 5642206: Image input equipment for transmitting video signals of an image of an object to a monitor television
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Picture signal generator : Carrier wave modulation)

Patent 5642207: Color scanner with variable line resolution
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Picture signal generator : Scanning : Picture signal thresholding)

Patent 5642208: Image forming system
(FACSIMILE AND STATIC PRESENTATION PROCESSING : NATURAL COLOR FACSIMILE : Image reproduction : Page or frame memory)

Patent 5642209: Directional light filter and holographic projector system for its production
(OPTICAL: SYSTEMS AND ELEMENTS : HOLOGRAPHIC SYSTEM OR ELEMENT : Using modulated or plural reference beams : Having nonplanar recording medium surface)

Patent 5642210: Method for mitigating cross-talk in high-efficiency holograms
(OPTICAL: SYSTEMS AND ELEMENTS : HOLOGRAPHIC SYSTEM OR ELEMENT : Using modulated or plural reference beams : Having nonplanar recording medium surface)

Patent 5642211: Liquid crystal display apparatus having a non-linear resistor connected to the pixel electrode and using a two-terminal device as a switching
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : PARTICULAR EXCITATION OF LIQUID CRYSTAL : Electrical excitation of liquid crystal (i.e., particular voltage pulses, AC vs. DC, threshold voltages, etc.) : With particular switching device : In active matrix with separate dedicated capacitor line)

Patent 5642212: Display apparatus having a two-terminal device including a zinc sulfide layer and method for producing the same
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : PARTICULAR EXCITATION OF LIQUID CRYSTAL : Electrical excitation of liquid crystal (i.e., particular voltage pulses, AC vs. DC, threshold voltages, etc.) : With particular switching device : In active matrix with separate dedicated capacitor line)

Patent 5642213: Electro-optical device
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : PARTICULAR EXCITATION OF LIQUID CRYSTAL : Electrical excitation of liquid crystal (i.e., particular voltage pulses, AC vs. DC, threshold voltages, etc.) : With particular switching device : Transistor : Structure of transistor :)

Patent 5642214: Optical modulating element and electronic apparatus using it
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : PARTICULAR STRUCTURE : Having significant detail of cell structure only : Polarizer : Formed by particular technique)

Patent 5642215: Optical transmission system
(OPTICAL COMMUNICATIONS : TRANSMITTER AND RECEIVER SYSTEM : Including optical waveguide : Dispersion compensation : Redundant fibers)

Patent 5642217: Apparatus for repowering and monitoring serial links
(OPTICAL COMMUNICATIONS : DIAGNOSTIC TESTING : Determination of communication parameter : Amplifier or repeater operation : Monitoring)

Patent 5642218: Method for creating a multi-faceted polygon for a laser writer
(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 5642219: Optical repeater
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL AMPLIFIER : Optical fiber : Bi-directional : Interferometer or interference)

Patent 5642220: Microscope balance compensator
(OPTICAL: SYSTEMS AND ELEMENTS : COMPOUND LENS SYSTEM : Microscope : With rotatable adjustment : Focus adjustment)

Patent 5642221: Head mounted display system
(OPTICAL: SYSTEMS AND ELEMENTS : STEREOSCOPIC : Stereo-viewers : Supporting, mounting, enclosing or light shielding structure : Pictures offset, transposed or have respective right or left sides adjacent)

Patent 5642222: Elastomeric retroreflective structure
(OPTICAL: SYSTEMS AND ELEMENTS : SIGNAL REFLECTOR : 3-Corner retroreflective (i.e., cube corner, trihedral, or triple reflector type) : Unitary plate or sheet comprising plural reflecting elements : Wind driven)

Patent 5642223: Tilting lens system
(OPTICAL: SYSTEMS AND ELEMENTS : IMAGE STABILIZATION : By movable refractive structure : Having plural reflecting surfaces)

Patent 5642224: Zoom lens system with vibration reduction function
(OPTICAL: SYSTEMS AND ELEMENTS : IMAGE STABILIZATION : By movable refractive structure : Having plural reflecting surfaces)

Patent 5642225: Image position correcting optical system
(OPTICAL: SYSTEMS AND ELEMENTS : IMAGE STABILIZATION : By movable refractive structure : Having plural reflecting surfaces)

Patent 5642226: Lenticular optical system
(OPTICAL: SYSTEMS AND ELEMENTS : SINGLE CHANNEL SIMULTANEOUSLY TO OR FROM PLURAL CHANNELS (E.G., LIGHT DIVIDING, COMBINING, OR PLURAL IMAGE FORMING, ETC.) : By surface composed of lenticular elements : Collapsible or foldable)

Patent 5642227: Optical correction for virtual reality and heads up displays
(OPTICAL: SYSTEMS AND ELEMENTS : SINGLE CHANNEL SIMULTANEOUSLY TO OR FROM PLURAL CHANNELS (E.G., LIGHT DIVIDING, COMBINING, OR PLURAL IMAGE FORMING, ETC.) : By partial reflection at beam splitting or combining surface : Superimposing visual information on observer`s field of view (e.g., head-up arrangement, etc.) : Including curved reflector : Cylindrical lenslets)

Patent 5642228: Resin-molded lens having no sink marks and process for producing same
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : By refraction at beam splitting or combining surface)

Patent 5642229: Projection lens unit
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With field curvature shaping : Projection type : With additional reflector (e.g., serial reflections, etc.))

Patent 5642230: Zoom finder
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With variable magnification (e.g., zoom type) : With mechanical compensation : Three groups : + - + Arrangement : Having crossed axes)

Patent 5642231: Compact 3X zoom lens
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With variable magnification (e.g., zoom type) : With mechanical compensation : Two groups : + - Arrangement : Having crossed axes)

Patent 5642232: Backlash removing mechanism for zoom lens assembly
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With variable magnification (e.g., zoom type) : Adjusting mechanism : Having cam device : Cam ring type or zoom ring type : Auto focusing)

Patent 5642233: Optical device
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : Including a nonspherical surface : Having one component : With macro type focusing)

Patent 5642234: Illuminated magnifying lens assembly
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With viewed object or viewed field illumination : Magnifier : + - Arrangement)

Patent 5642235: Lens supporting device
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With support : Operation viewed through lens)

Patent 5642236: Dimmable safety mirror suitable for motor vehicles and method of operation
(OPTICAL: SYSTEMS AND ELEMENTS : MIRROR : Back to back : Plural reflecting surfaces)

Patent 5642237: Reflecting mirror support apparatus
(OPTICAL: SYSTEMS AND ELEMENTS : MIRROR : Including specified control or retention of the shape of a mirror surface : Including a plurality of adjustable mirror supports : Roof or roof-angle)

Patent 5642238: Ergonomically efficient side and rear vision system for motor vehicles
(OPTICAL: SYSTEMS AND ELEMENTS : MIRROR : With support : Concave)

Patent 5642239: Methods and apparatus for changing the repetition rate of image data, and for detecting still images and scene changes in image data
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORDING FOR CHANGING DURATION, FREQUENCY OR REDUNDANT CONTENT OF AN ANALOG SIGNAL : Motion picture film)

Patent 5642240: Video data recording and/or reproducing apparatus with control of read/write operation of a memory based on boundary positions of the
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : SPLITTING ONE INFORMATION SIGNAL FOR RECORDING ON PLURAL DISTINCT TRACKS OR REPRODUCING SUCH SIGNAL : Head gap azimuth multiplex)

Patent 5642241: Digital signal recording apparatus in which interleaved-NRZI modulated is generated with a lone 2T precoder
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : GENERAL PROCESSING OF A DIGITAL SIGNAL : In specific code or form : Nonreturn to zero :)

Patent 5642242: Processing system for digital video signal
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : GENERAL PROCESSING OF A DIGITAL SIGNAL : Data in specific format : Intra-cell transition)

Patent 5642243: Timing recovery frequency error detector for sampled amplitude magnetic recording
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : GENERAL PROCESSING OF A DIGITAL SIGNAL : Data clocking : Intra-cell transition)

Patent 5642244: Method and apparatus for switching between data and servo modes
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : GENERAL RECORDING OR REPRODUCING : Signal switching : With incremental movement between record and head)

Patent 5642245: Tape cassette information detecting mechanism and reel lock releasing mechanism for recording and reproducing apparatus
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : AUTOMATIC CONTROL OF A RECORDER MECHANISM : Controlling the record : Recording amplifier)

Patent 5642246: Recording and/or reproducing apparatus for different sized cassette which utilizes the cassette housing to engage or disengage the drive
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORD TRANSPORT WITH HEAD STATIONARY DURING TRANSDUCING : Tape record : Tape in container : Transport accommodates different types : Drum)

Patent 5642247: Automatic fault monitoring system and motor control system incorporating same
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : SAFETY AND PROTECTION OF SYSTEMS AND DEVICES : Motor protective condition responsive circuits : Current : During energization of motor)

Patent 5642248: Electrical extension cord with built-in safety protection
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : SAFETY AND PROTECTION OF SYSTEMS AND DEVICES : Ground fault protection : Transformer with structurally combined protective device)

Patent 5642249: Method and apparatus for limiting high current electrical faults in distribution networks by use of superconducting excitation in
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : SAFETY AND PROTECTION OF SYSTEMS AND DEVICES : Impedance insertion : Current responsive)

Patent 5642250: Protection release method
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : SAFETY AND PROTECTION OF SYSTEMS AND DEVICES : With specific quantity comparison means : Voltage and current : Distance relaying : With sequentially inserted impedance)

Patent 5642251: Protection circuit for DC supply
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : SAFETY AND PROTECTION OF SYSTEMS AND DEVICES : With specific quantity comparison means : Reverse energy responsive (e.g., directional) : With time delay protective means)

Patent 5642252: Insulated gate semiconductor device and driving circuit device and electronic system both using the same
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : SAFETY AND PROTECTION OF SYSTEMS AND DEVICES : With specific current responsive fault sensor : Current limiting : Protection for thyristor)

Patent 5642253: Multi-channel ignition coil driver module
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : CONTROL CIRCUITS FOR ELECTROMAGNETIC DEVICES : Systems for magnetizing, demagnetizing, or controlling the magnetic field : Including particular drive circuit : Magnetic tape)

Patent 5642254: High duty cycle AC corona charger
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : ELECTRIC CHARGE GENERATING OR CONDUCTING MEANS (E.G., CHARGING OF GASES) : With specific power supply : Pinning)

Patent 5642255: Capacitor case having flat coupling sections
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : ELECTROLYTIC SYSTEMS OR DEVICES : Solid electrolytic capacitor (e.g., dry electrolytic capacitor) : Casing : With significant lead)

Patent 5642256: Interlock mechanism for a motor control unit
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electrical power distribution systems and devices : Electrical switchgear : With interlock : With plural removable control units in housing)

Patent 5642257: Attaching/detaching structure for a keyboard module in an information processing equipment
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : Including keyboard support : Fluid)

Patent 5642258: Computer accessory including a pivotably mounted combined handle and power source and associated methods of manufacturing
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : Computer related support : CRT support)

Patent 5642259: Arrangement for connecting an expansion card to a connector socket in a personal computer
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : Computer related support : Input/output device support : Disk drive support)

Patent 5642260: Welding power supply housing
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : With cooling means : Fluid : Air : With air circulating means : Fan or blower : With stabilizer or modifying substance)

Patent 5642261: Ball-grid-array integrated circuit package with solder-connected thermal conductor
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : With cooling means : Thermal conduction : With cooling fins)

Patent 5642262: High-density programmable logic device in a multi-chip module package with improved interconnect scheme
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : Printed circuit board : Connection of components to board : Having semiconductive device : With specific connection material)

Patent 5642263: Circuit board retention system
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : Printed circuit board : Plural : With housing or chassis : Specific latching or retaining device : Circuit board mounted)

Patent 5642264: Apparatus for supporting circuit cards in slot locations
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : Printed circuit board : Plural : With housing or chassis : Specific alignment or guide means : Circuit board mounted)

Patent 5642265: Ball grid array package with detachable module
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : Component mounting or support means : With discrete structure or support : Spacer details)

Patent 5642266: Apparatus for maintaining an electrical component in a fixed position
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : Component mounting or support means : With discrete structure or support : Spacer details)

Patent 5642267: Single-stage, unity power factor switching converter with voltage bidirectional switch and fast output regulation
(ELECTRIC POWER CONVERSION SYSTEMS : CURRENT CONVERSION : Including D.C.-A.C.-D.C. converter : Having transistorized inverter : With dynamic rectifier in phase 2 to D.C. stage (e.g., commutator type))

Patent 5642268: Power supply for a magnetron having controlled output power and narrow bandwidth
(ELECTRIC POWER CONVERSION SYSTEMS : CURRENT CONVERSION : Including D.C.-A.C.-D.C. converter : Having transistorized inverter : Bridge type : Including plural anode/single cathode device)

Patent 5642269: Power supply apparatus having separate plural outputs
(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)

Patent 5642270: Battery powered electric vehicle and electrical supply system
(ELECTRIC POWER CONVERSION SYSTEMS : CURRENT CONVERSION : Including D.C.-A.C.-D.C. converter : Having transistorized inverter : Bridge type : Including plural anode/single cathode device)

Patent 5642271: Pneumatic control system
(ELECTRIC POWER CONVERSION SYSTEMS : CURRENT CONVERSION : With means to introduce or eliminate frequency components : By electron tube rectifier and inverter)

Patent 5642272: Apparatus and method for device power-up using counter-enabled drivers
(ELECTRIC POWER CONVERSION SYSTEMS : CURRENT CONVERSION : With starting arrangement : In rectifier systems)

Patent 5642273: Resonant snubber inverter
(ELECTRIC POWER CONVERSION SYSTEMS : CURRENT CONVERSION : Including automatic or integral protection means : For inverters : Transistor inverter : Transient protection (e.g., snubber, etc.) : Having voltage protection)

Patent 5642274: Low noise sinusoidal controller for pulse width modulated converters
(ELECTRIC POWER CONVERSION SYSTEMS : CURRENT CONVERSION : With condition responsive means to control the output voltage or current : Cooperating separate sensing and control means : For inverter : With electron tube or valve control means in the line circuit)

Patent 5642275: Multilevel cascade voltage source inverter with seperate DC sources
(ELECTRIC POWER CONVERSION SYSTEMS : CURRENT CONVERSION : Using semiconductor-type converter : In thyristor inverter systems : Bridge type : D.C. to plural phase : For bridge-type inverter)

Patent 5642276: High frequency surface mount transformer-diode power module
(ELECTRIC POWER CONVERSION SYSTEMS : CURRENT CONVERSION : With conductive support mounting : 110/220 Volts A.C. in, constant 110 Volts D.C. out)

Patent 5642278: Method and apparatus for temperature and pressure compensation of pneumatic manifolds
(DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS : GENERIC CONTROL SYSTEM, APPARATUS OR PROCESS : Optimization or adaptive control : Having model : Having status indication)

 

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