Patents 5504387 - 5504640

 

 

Patent 5504387: Flat display where a first film electrode, a dielectric film, and a second film electrode are successively formed on a base plate and
(ELECTRIC LAMP AND DISCHARGE DEVICES : DISCHARGE DEVICES HAVING A THERMIONIC OR EMISSIVE CATHODE : Discharge control electrode)

Patent 5504388: Piezoelectric/electrostrictive element having electrode film(s) with specified surface roughness
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : NON-DYNAMOELECTRIC : Piezoelectric elements and devices : Electrode materials : Rochelle salt)

Patent 5504389: Black electrode TFEL display
(ELECTRIC LAMP AND DISCHARGE DEVICES : WITH LUMINESCENT SOLID OR LIQUID MATERIAL : Solid-state type : Plural layers : Organic phosphor)

Patent 5504390: Addressable electroluminescent display panel having a continuous footprint
(ELECTRIC LAMP AND DISCHARGE DEVICES : WITH LUMINESCENT SOLID OR LIQUID MATERIAL : Solid-state type : Plural layers : With dielectric layer : With shield or additional electrode)

Patent 5504391: Excimer lamp with high pressure fill
(ELECTRIC LAMP AND DISCHARGE DEVICES : WITH GAS OR VAPOR : Having a particular total or partial pressure : Greater than 760 torr : Pole pieces facing electrode ends)

Patent 5504392: High pressure metal halide lamp
(ELECTRIC LAMP AND DISCHARGE DEVICES : WITH GAS OR VAPOR : Having a particular total or partial pressure : Greater than 760 torr : Pole pieces facing electrode ends)

Patent 5504393: Combination tuner and second harmonic suppressor for extended interaction klystron
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : CATHODE RAY TUBE CIRCUITS : Combined cathode ray tube and circuit element structure : Inductor or distributed parameter-type inductive structure : Ray passes in or through a hollow distributed parameter device : Plural hollow devices : Device tunable : Three hollow devices)

Patent 5504394: Lamp bulb having integrated lighting function control circuitry and method of manufacture
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : COMBINED LOAD DEVICE OR LOAD DEVICE TEMPERATURE MODIFYING MEANS AND ELECTRICAL CIRCUIT DEVICE STRUCTURE : Load device and impedance : Plural filaments energized in parallel)

Patent 5504395: Lamp bulb having integrated RFI suppression and method of restricting RFI to selected level
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : COMBINED LOAD DEVICE OR LOAD DEVICE TEMPERATURE MODIFYING MEANS AND ELECTRICAL CIRCUIT DEVICE STRUCTURE : Load device and impedance : Plural filaments energized in parallel)

Patent 5504396: Discharge lamp control system
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : WITH AUTOMATIC SHUNT AND/OR CUTOUT : Plural load device systems : Automatic cut-out or voltage regulator for the heater circuit)

Patent 5504397: Neon lamp assembly
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : PLURAL SERIES CONNECTED LOAD DEVICES : Christmas lights : Asymmetrical discharge device loads)

Patent 5504398: Dimming controller for a fluorescent lamp
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : PERIODIC SWITCH IN THE SUPPLY CIRCUIT : Flashers)

Patent 5504399: Electrical circuit for operating a fluorescent lamp and for measuring the lamp current
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : PULSATING OR A.C. SUPPLY : Transformer in the supply circuit : Three or more coil-type transformers : With condenser in the control circuit)

Patent 5504400: Two-channel AC light dimmer and lighting system
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : CURRENT AND/OR VOLTAGE REGULATION : Circuit interrupter in the inductance circuit)

Patent 5504401: Transformer replacement for a solid-state lighting ballast
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : CURRENT AND/OR VOLTAGE REGULATION : Automatic regulation : Plural field-type generator)

Patent 5504402: BEMF rectification voltage when power supply energy fails
(ELECTRICITY: MOTIVE POWER SYSTEMS : BRAKING : Dynamic braking : Regenerative : With additional source of e.m.f. : With means for short-circuiting a winding)

Patent 5504403: Method and apparatus for controlling an electric assist steering system using an adaptive blending torque filter
(ELECTRICITY: MOTIVE POWER SYSTEMS : CONSTANT MOTOR CURRENT, LOAD AND/OR TORQUE CONTROL : Initial, "cracking" or "starting from rest" torque control)

Patent 5504404: Method and apparatus for controlling motor
(ELECTRICITY: MOTIVE POWER SYSTEMS : CONSTANT MOTOR CURRENT, LOAD AND/OR TORQUE CONTROL : Initial, "cracking" or "starting from rest" torque control)

Patent 5504405: Switch machine controller with fail safe mechanism
(ELECTRICITY: MOTIVE POWER SYSTEMS : MOTOR COMMUTATION CONTROL SYSTEMS : Control of motor load or device driven)

Patent 5504406: Wiper system with variable holddown force
(ELECTRICITY: MOTIVE POWER SYSTEMS : PERIODIC, REPETITIOUS OR SUCCESSIVE OPERATIONS CONTROL OF MOTOR, INCLUDING "JOG" AND "INCH" CONTROL : Different voltages)

Patent 5504407: Stage driving system
(ELECTRICITY: MOTIVE POWER SYSTEMS : POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) : Program- or pattern-controlled systems : With program recording or composing means : Multifunction manipulator (i.e., Robot) : With multimode control (e.g., course-fine, position-force, etc.) : Manual lead through)

Patent 5504408: Method of feeding a single-phase stepping motor
(ELECTRICITY: MOTIVE POWER SYSTEMS : POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) : With particular motor control system responsive to the "actuating signal" : "Step-by-step" motors in closed-loop servos : Rotating amplifier (e.g., "Ward Leonard" control))

Patent 5504409: Direct drive servovalve having two landed spool power stage
(ELECTRICITY: MOTIVE POWER SYSTEMS : TORQUING MOTORS : With particular motor control system responsive to the "actuating signal")

Patent 5504410: Switching circuit
(ELECTRICITY: MOTIVE POWER SYSTEMS : SYNCHRONOUS MOTOR SYSTEMS : Hysteresis or reluctance motor systems : Cyclically varying or repeated speed schedules)

Patent 5504411: Battery charger contact protection circuit
(ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING : BATTERY OR CELL CHARGING : With thermal condition detection : Hysteresis type (e.g., antichattering, etc.))

Patent 5504412: Replaceable battery pack of rechargeable batteries
(BRUSHING, SCRUBBING, AND GENERAL CLEANING : MACHINES : With air blast or suction : Combined, e.g., with signal or indicator : Converter attached to floor nozzle mouth)

Patent 5504413: Battery charging system with power management of plural peripheral devices
(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 5504414: Electric system for electric vehicle
(MOTOR VEHICLES : POWER : Electric : With electronic devices (logic gates, semi-conductors, vacuum tubes, etc.) in control circuit : Gearing is a changeable ratio gearing)

Patent 5504415: Method and apparatus for automatic equalization of series-connected batteries
(ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING : SERIALLY CONNECTED BATTERIES OR CELLS : With discharge of cells or batteries : With charger stand or base)

Patent 5504416: Battery charger circuit including battery temperature control
(ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING : BATTERY OR CELL CHARGING : With thermal condition detection : Detection of current or voltage amplitude : Pulse-width modulation)

Patent 5504417: Engine-driven generator
(ELECTRICITY: SINGLE GENERATOR SYSTEMS : AUTOMATIC CONTROL OF GENERATOR OR DRIVING MEANS : Speed or frequency of generator : Frequency responsive devices or networks : Plural electrical conditions)

Patent 5504418: Full shunt boost switching voltage limiter for solar panel array
(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 5504419: Rod-core current transformer
(ELECTRICITY: POWER SUPPLY OR REGULATION SYSTEMS : INCLUDING A TRANSFORMER OR AN INDUCTOR : Current transformer : For current transformer)

Patent 5504420: Current-generating apparatus for therapeutic treatments in the field of biophysics and physiology
(ELECTRICITY: POWER SUPPLY OR REGULATION SYSTEMS : OUTPUT LEVEL RESPONSIVE : Using a three or more terminal semiconductive device as the final control device : Including plural final control devices : Switched (e.g., on-off control) : Including an electronic tube or a three or more terminal semiconductive device in control circuit)

Patent 5504421: Storm monitor
(ELECTRICITY: MEASURING AND TESTING : TESTING POTENTIAL IN SPECIFIC ENVIRONMENT (E.G., LIGHTNING STROKE) : Superconductors)

Patent 5504422: Polarity testing process and device for electrolytic capacitors
(ELECTRICITY: MEASURING AND TESTING : MEASURING, TESTING, OR SENSING ELECTRICITY, PER SE : Nonquantitative (e.g., hot-line indicator, polarity tester) : Selective filter)

Patent 5504423: Method for modeling interactions in multilayered electronic packaging structures
(ELECTRICITY: MEASURING AND TESTING : MISCELLANEOUS : Combined)

Patent 5504424: Variable reluctance sensor utilizing a magnetic bobbin
(ELECTRICITY: MEASURING AND TESTING : ELECTRICAL SPEED MEASURING : Including speed-related frequency generator : Including magnetic detector : Permanent magnet type : High voltage speed signal type)

Patent 5504425: Inductive sensor responsive to the distance to a conductive or magnetizable object
(ELECTRICITY: MEASURING AND TESTING : MAGNETIC : Displacement : Having particular sensor means : Inductive : Electrically energized : Pulsating or alternating current for the anode)

Patent 5504426: Check valve position indication system and method
(ELECTRICITY: MEASURING AND TESTING : MAGNETIC : Displacement : Having particular sensor means : Inductive : Electrically energized : Separate pick-up : Including plural current focussing arrays)

Patent 5504427: Rotational position sensor having variable coupling transformer
(ELECTRICITY: MEASURING AND TESTING : MAGNETIC : Displacement : Having particular sensor means : Inductive : Electrically energized : Separate pick-up : Including plural current focussing arrays)

Patent 5504428: Magnetic metal detector mounted in a feed roll of a harvisting machine
(ELECTRICITY: MEASURING AND TESTING : MAGNETIC : With means to create magnetic field to test material : Induced voltage-type sensor : Plural sensors : Plural sensors)

Patent 5504429: Probe for detecting and dosing molecular oxygen by means of electronic paramagnetic resonance spectrometry
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE :)

Patent 5504430: Method and apparatus of conductivity measurement
(ELECTRICITY: MEASURING AND TESTING : ELECTROLYTE PROPERTIES : Using a conductivity determining device : Including probe structure)

Patent 5504431: Device for and method of evaluating semiconductor integrated circuit
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Using radiant energy : With support for article)

Patent 5504432: System and method for detecting short, opens and connected pins on a printed circuit board using automatic test equipment
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : By spark or arc discharge)

Patent 5504433: Electrochemical sensor for monitoring electrolyte content
(ELECTRICITY: MEASURING AND TESTING : IMPEDANCE, ADMITTANCE OR OTHER QUANTITIES REPRESENTATIVE OF ELECTRICAL STIMULUS/RESPONSE RELATIONSHIPS : Lumped type parameters : Using resistance or conductance measurement : With object or substance characteristic determination using conductivity effects : Including a probe type structure)

Patent 5504434: Instrument for the measurement of electrical characteristics during manufacturing processes
(ELECTRICITY: MEASURING AND TESTING : IMPEDANCE, ADMITTANCE OR OTHER QUANTITIES REPRESENTATIVE OF ELECTRICAL STIMULUS/RESPONSE RELATIONSHIPS : Lumped type parameters : Using resistance or conductance measurement : With semiconductor or IC materials quality determination using conductivity effects : Including a particular probing technique (e.g., four point probe))

Patent 5504435: Testing contactor for small-size semiconductor devices
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : With probe elements : Internal of or on support for device under test (DUT) : Of reflected test signal)

Patent 5504436: Socket apparatus for member testing
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : With probe elements : Pin : Of reflected test signal)

Patent 5504437: Apparatus and method for electrical measurement of semiconductor wafers
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : Test of semiconductor device : Cantilever)

Patent 5504438: Testing method for imaging defects in a liquid crystal display substrate
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : Liquid crystal device test : With barrier layer)

Patent 5504439: I/O interface cell for use with optional pad
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : MULTIFUNCTIONAL OR PROGRAMMABLE (E.G., UNIVERSAL, ETC.) : Having details of setting or programming of interconnections or logic functions : With field effect-transistor)

Patent 5504440: High speed programmable logic architecture
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : MULTIFUNCTIONAL OR PROGRAMMABLE (E.G., UNIVERSAL, ETC.) : Array (e.g., PLA, PAL, PLD, etc.) : With field effect-transistor)

Patent 5504441: Two-phase overlapping clocking technique for digital dynamic circuits
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : CLOCKING OR SYNCHRONIZING OF LOGIC STAGES OR GATES : Current driving (e.g., fan in/out, off chip driving, etc.))

Patent 5504442: Sense circuit
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC SIGNAL DISCRIMINATING (E.G., COMPARING, SELECTING, ETC.) WITHOUT SUBSEQUENT CONTROL : By amplitude : With sensing amplifier : With logic or bistable circuit)

Patent 5504443: Differential latch sense amlifiers using feedback
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC SIGNAL DISCRIMINATING (E.G., COMPARING, SELECTING, ETC.) WITHOUT SUBSEQUENT CONTROL : By amplitude : With sensing amplifier : With logic or bistable circuit)

Patent 5504444: Driver circuits with extended voltage range
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SIGNAL CONVERTING, SHAPING, OR GENERATING : Current driver : Having digital device (e.g., logic gate, flip-flop, etc.))

Patent 5504445: Sine wave generating circuit
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SIGNAL CONVERTING, SHAPING, OR GENERATING : Generating sinusoidal output : With rectifying element)

Patent 5504446: AC voltage clipper in MOS-technology
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SIGNAL CONVERTING, SHAPING, OR GENERATING : Amplitude control : By limiting, clipping, or clamping : Clock bus)

Patent 5504447: Transistor programmable divider circuit
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC INPUT TO OUTPUT FUNCTION : Amplitude control)

Patent 5504448: Current limit sense circuit and method for controlling a transistor
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : GATING (I.E., SWITCHING INPUT TO OUTPUT) : Signal transmission integrity or spurious noise override : Turn-off)

Patent 5504449: Power driver circuit
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : GATING (I.E., SWITCHING INPUT TO OUTPUT) : Utilizing three or more electrode solid-state device : Field-effect transistor : Plural)

Patent 5504450: High voltage components for EEPROM system
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : GATING (I.E., SWITCHING INPUT TO OUTPUT) : Utilizing three or more electrode solid-state device : Field-effect transistor : Insulated gate FET (e.g., MOSFET, etc.) : Complementary metal-oxide semiconductor (CMOS) : Using diode)

Patent 5504451: Gated thyristor and process for its simultaneous fabrication with high- and low-voltage semiconductor devices, integrated circuit containing
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : GATING (I.E., SWITCHING INPUT TO OUTPUT) : Utilizing three or more electrode solid-state device : Four or more layer device (e.g., thyristor, etc.) : Insulated gate FET (e.g., MOSFET, etc.))

Patent 5504452: Semiconductor integrated circuit operating at dropped external power voltage
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC IDENTIFIABLE DEVICE, CIRCUIT, OR SYSTEM : With specific source of supply or bias voltage : Stabilized (e.g., compensated, regulated, maintained, etc.) : With voltage source regulating : With field-effect transistor : With emitter follower)

Patent 5504453: Method and device for estimating phase error
(DEMODULATORS : PHASE SHIFT KEYING OR QUADRATURE AMPLITUDE DEMODULATOR : Including logic element (e.g., logic gate or flip-flop)

Patent 5504454: Demodulator for powerline carrier communications
(DEMODULATORS : PHASE SHIFT KEYING OR QUADRATURE AMPLITUDE DEMODULATOR : Including logic element (e.g., logic gate or flip-flop)

Patent 5504455: Efficient digital quadrature demodulator
(DEMODULATORS : PHASE SHIFT KEYING OR QUADRATURE AMPLITUDE DEMODULATOR : Including logic element (e.g., logic gate or flip-flop)

Patent 5504456: Low noise wide band amplifier
(AMPLIFIERS : SIGNAL FEEDBACK : Phase shift means in loop path : Positive and negative feedback)

Patent 5504457: Pulsed power amplifier for amplifying RF signals
(AMPLIFIERS : WITH CONTROL OF POWER SUPPLY OR BIAS VOLTAGE : With control of input electrode or gain control electrode bias : D.C. coupling)

Patent 5504458: CMOS class AB amplifier for driving capacitive and resistive loads
(AMPLIFIERS : WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) : Including differential amplifier : Having push-pull amplifier stage :)

Patent 5504459: Filter network for phase-locked loop circuit
(OSCILLATORS : AUTOMATIC FREQUENCY STABILIZATION USING A PHASE OR FREQUENCY SENSING MEANS : Particular error voltage control (e.g., intergrating network) : Motor control of oscillator)

Patent 5504460: Pressure seal type piezoelectric resonator
(OSCILLATORS : ELECTROMECHANICAL RESONATOR : Crystal : With sync, trigger, or pulsing circuit (e.g., self-pulsing))

Patent 5504461: High speed slotline BPSK modulator
(MODULATORS : PHASE SHIFT KEYING MODULATOR OR QUADRATURE AMPLITUDE MODULATOR : Including discrete semiconductor device)

Patent 5504462: Apparatus for enhancing pixel addressability in a pulse width and position modulated system
(MODULATORS : PULSE OR INTERRUPTED CONTINUOUS WAVE MODULATOR : Pulse width modulator :)

Patent 5504463: Frequency modulating system including VCD made of transconductance amplifiers
(MODULATORS : FREQUENCY MODULATOR : Including stabilization or alternatively distortion, noise or other interference prevention, reduction, or compensation : Automatic frequency stabilization or control : Phase or frequency locked loop :)

Patent 5504464: Frequency modulating system including clamp and transconductance amplifier
(MODULATORS : FREQUENCY MODULATOR : Including stabilization or alternatively distortion, noise or other interference prevention, reduction, or compensation : Automatic frequency stabilization or control : Phase or frequency locked loop :)

Patent 5504465: Microwave modulator having adjustable couplers
(MODULATORS : PHASE MODULATOR : Including amplitude modulator : Particular oscillator circuit)

Patent 5504466: Suspended dielectric and microstrip type microwave phase shifter and application to lobe scanning antenne networks
(WAVE TRANSMISSION LINES AND NETWORKS : COUPLING NETWORKS : Delay lines including long line elements : Waveguide : Having mechanically movable delay control means : Including waveguide element)

Patent 5504467: Circuit breaker with improved contact arm follower spring arrangement
(ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS : ELECTROMAGNETICALLY ACTUATED SWITCHES : Tripping means : Including spring-biasing or energy-storage means)

Patent 5504468: Electromagnetic solenoid
(ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS : MAGNETS AND ELECTROMAGNETS : With magneto-mechanical motive device (e.g., electromagnet with armature) : With casing or enclosure : Pivot support type armature-mounting means)

Patent 5504469: Electrical conductors
(INDUCTOR DEVICES : COIL OR COIL TURN SUPPORTS OR SPACERS : Flexible filament, strip or sheet insulation : Coils of different windings interposed)

Patent 5504470: Resistor trimming process for high voltage surge survival
(ELECTRICAL RESISTORS : RESISTANCE VALUE RESPONSIVE TO A CONDITION : Current and/or voltage (e.g., ballast resistor) : With transparent housing)

Patent 5504471: Passively-multiplexed resistor array
(ELECTRICAL RESISTORS : WITH MOUNTING OR SUPPORTING MEANS : Plural resistors : Plural resistors)

Patent 5504472: Vehicle deceleration warning light
(COMMUNICATIONS: ELECTRICAL : LAND VEHICLE ALARMS OR INDICATORS : External signal light system : Brake light : With plural bulbs sequentially flashed)

Patent 5504473: Method of analyzing signal quality
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Intrusion detection : Including location of misplaced item)

Patent 5504474: Tag for electronic personnel monitoring
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Human or animal : House arrest system, wandering, or wrong place : Specified device housing or attachment means)

Patent 5504475: Pricing display system
(COMMUNICATIONS: ELECTRICAL : SELECTIVE : Intelligence comparison for controlling : Commodity (e.g., vending) : Including merchandise information display system (e.g., store price display) : Password)

Patent 5504476: Method and apparatus for generating alerts based upon content of messages received by a radio receiver
(COMMUNICATIONS: ELECTRICAL : SELECTIVE : Having indication or alarm (e.g., location indication) : Code responsive (i.e., paging) : Addressing format : Group call : News information provider (e.g., sports, weather, etc.) : Using additional record or carrier code)

Patent 5504477: Tracking system
(COMMUNICATIONS: ELECTRICAL : SELECTIVE : Interrogation response : Response signal detail : Power up)

Patent 5504478: Radio frequency control system
(COMMUNICATIONS: ELECTRICAL : SELECTIVE : Pulse responsive actuation : Serial : Radio link : Counting chain)

Patent 5504479: Carrierless amplitude and phase modulation telementry for use in electric wireline well logging
(COMMUNICATIONS: ELECTRICAL : WELLBORE TELEMETERING OR CONTROL (E.G., SUBSURFACE TOOL GUIDANCE, DATA TRANSFER, ETC.) : Using a specific transmission medium (e.g., conductive fluid, annular spacing, etc.) : Cable or wire (e.g., conductor as support, etc.) : Near field coupling (e.g., inductive, capacitive, etc.))

Patent 5504480: Optical device as a driving aid
(COMMUNICATIONS: ELECTRICAL : EXTERNAL CONDITION VEHICLE-MOUNTED INDICATOR OR ALARM : Transmitter in another vehicle (e.g., emergency vehicle) : Relative distence between vehicles (e.g., collision alert) : Follow-up (e.g., circuit rebalanced when upset))

Patent 5504481: Fail-safe stop light apparatus
(COMMUNICATIONS: ELECTRICAL : TRAFFIC CONTROL INDICATOR : Traffic control or local controller failure indicator : Electromechanical movable auxiliary indicator)

Patent 5504482: Automobile navigation guidance, control and safety system
(COMMUNICATIONS: ELECTRICAL : VEHICLE POSITION INDICATION : Map display : Transmission of map data to vehicle : Traffic information : Modulated light source)

Patent 5504483: Control of input devices via a keyboard interface
(CODED DATA GENERATION OR CONVERSION : BODILY ACTUATED CODE GENERATOR : Including keyboard or keypad : Having optical waveguide)

Patent 5504484: Variable-length data alignment apparatus for digital video data
(CODED DATA GENERATION OR CONVERSION : DIGITAL CODE TO DIGITAL CODE CONVERTERS : To or from variable length codes : To or from Morse code)

Patent 5504485: System for preventing reading of undesired RF signals
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : RADAR TRANSPONDER SYSTEM : Secondary Surveilance Radar (SSR) or Air Traffic Control Radar Beacon System (ATCRBS))

Patent 5504486: Detection system
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : RETURN SIGNAL CONTROLS RADAR SYSTEM : Receiver : Automatic target detection : Function of distance)

Patent 5504487: System for extracting targets from radar signatures
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : RETURN SIGNAL CONTROLS RADAR SYSTEM : Receiver : Automatic target detection : Function of distance)

Patent 5504488: Traffic radar with digital signal processing
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DETERMINING VELOCITY : Digital : With plural frequencies transmission)

Patent 5504489: Method for range determination
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DETERMINING DISTANCE : With plural beams (e.g., "Janus"))

Patent 5504490: Radar method and device for the measurement of distance
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DETERMINING DISTANCE : With plural beams (e.g., "Janus"))

Patent 5504491: Global status and position reporting system
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DIRECTIVE : Including a satellite : With position indicating : Using Global Positioning Satellite (GPS or Glonass) : With transmission of location-indicative information to or from a remote station :)

Patent 5504492: Look ahead satellite positioning system position error bound monitoring system
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DIRECTIVE : Including a satellite : With position indicating : Using Global Positioning Satellite (GPS or Glonass) : With ambiguity resolving)

Patent 5504493: Active transmit phased array antenna with amplitude taper
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DIRECTIVE : Including a steerable array : With electronic scanning : Controlled : Satellite selection (i.e., tracking or acquisition))

Patent 5504494: Multi-stage antenna
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : With radio cabinet :)

Patent 5504495: Field convertible NTSC/HDTV broadcast antennas
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : Convertible to different antennas : Light)

Patent 5504496: Apparatus for displaying two-dimensional image information
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : PLURAL PHYSICAL DISPLAY ELEMENT CONTROL SYSTEM (E.G., NON-CRT) : Optical means interposed in viewing path (e.g., filters, lens, etc.) : Addressing)

Patent 5504497: Method and device using electron beam to scan for matrix panel 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) : Fluid light emitter (e.g., gas, liquid, or plasma) : Having endless belt or tape reader)

Patent 5504498: Control method for moving a specific portion of a graph
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS PROCESSING : Graphic manipulation (object processing or display attributes) : Translation : Image based (addressing) : Scrolling : Weights vary across image (e.g., transition from foreground to background))

Patent 5504499: Computer aided color design
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS PROCESSING : Attributes (surface detail or characteristic, display attributes) : Color or intensity : Color selection : Using GUI :)

Patent 5504500: User programmable orientation of cursor movement direction
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : DISPLAY PERIPHERAL INTERFACE INPUT DEVICE : Cursor mark position control device : Temporal interpolation or processing)

Patent 5504501: Optical input arrangement and method of using same
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : DISPLAY PERIPHERAL INTERFACE INPUT DEVICE : Cursor mark position control device : Including orientation sensors (e.g., infrared, ultrasonic, remotely controlled) : Scaling)

Patent 5504502: Pointing control device for moving a cursor on a display on a computer
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : DISPLAY PERIPHERAL INTERFACE INPUT DEVICE : Cursor mark position control device : Cursor key : Scaling)

Patent 5504503: High speed signal conversion method and device
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS DISPLAY MEMORY SYSTEM : Multi-port memory : Character memory)

Patent 5504504: Method of reducing the visual impact of defects present in a spatial light modulator display
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : DISPLAY DRIVING CONTROL CIRCUITRY : Controlling the condition of display elements : Synchronizing means)

Patent 5504505: Ink jet recording head and driving circuit therefor
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Controller : Of ejector : Array : Full-line array :)

Patent 5504506: Information recording method capable of performing a high quality recording in accordance with printing conditions
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Controller : Of medium : Creating plural tones)

Patent 5504507: Electronically readable performance data on a thermal ink jet printhead chip
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Controller : Measuring and testing (e.g., diagnostics) : With particular cooling means)

Patent 5504508: Ink receiving cap, and ink-jet recording apparatus and ink discharging method using the same
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Ejector mechanism (i.e., print head) : With cleaning or protector : For color : Full-line array)

Patent 5504509: Image forming apparatus with specific aperture electrode unit
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Ejector mechanism (i.e., print head) : Drop-on-demand : With electric field ejection (applied to fluid) : Movement)

Patent 5504510: Ink loading device, recording apparatus having same and ink loading method
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Fluid or fluid source handling means : Fluid supply system : With aerosol formation)

Patent 5504511: Ink container
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Fluid or fluid source handling means : Fluid supply system : Cartridge : Drop correction)

Patent 5504512: Ink jet recording apparatus and ink cartridge usable therewith
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Fluid or fluid source handling means : Fluid supply system : Cartridge : Drop correction)

Patent 5504513: Deflection compensation for cartridge carriage with compliant walls
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Fluid or fluid source handling means : Fluid supply system : Cartridge : With integral ejector : Drop sensors)

Patent 5504514: System and method for solid state illumination for spatial light modulators
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : ELECTRIC MARKING APPARATUS OR PROCESSES : Electrostatic : Photo scanning : Light emitting diodes : Laminated head including charged particle generation layer)

Patent 5504515: Laser exposure apparatus for printing forms to be imagewise exposed
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : LIGHT OR BEAM MARKING APPARATUS OR PROCESSES : Scan of light : Plural beam scan : Scan synchronization (e.g., start-of-scan, end-of-scan) : Including switching means)

Patent 5504516: Electro-optical head assembly
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : LIGHT OR BEAM MARKING APPARATUS OR PROCESSES : Scan of light : Plural beam scan : Specific light source (e.g., LEDs assembly) : Including switching means)

Patent 5504517: Laser scanner control circuit which is used in image forming apparatus and driver IC for use in such a circuit
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : LIGHT OR BEAM MARKING APPARATUS OR PROCESSES : Scan of light : Feedback of light for intensity control : Housing or mounting)

Patent 5504518: Method and system for recognition of broadcast segments
(INTERACTIVE VIDEO DISTRIBUTION SYSTEMS : COMMERCIAL OR PROGRAM AIRING VERIFICATION SYSTEM : By passively monitoring receiver operation)

Patent 5504519: Method and apparatus for printing coupons and the like
(INTERACTIVE VIDEO DISTRIBUTION SYSTEMS : USE SURVEYING OR MONITORING (E.G., PROGRAM OR CHANNEL WATCHED) : Monitoring physical reaction or presence of viewer : Coin operated)

Patent 5504520: Automatic television-camera supervisory system
(TELEVISION : SPECIAL APPLICATIONS : Observation of or from a specific location (e.g., surveillance) : Intrusion detection : Using plural cameras : Motion detection :)

Patent 5504521: Method and apparatus for making corrections in a video monitor during horizontal scan
(TELEVISION : MONITORING, TESTING, OR MEASURING : Setup)

Patent 5504522: Audio and video signal monitor apparatus
(TELEVISION : MONITORING, TESTING, OR MEASURING : Monitor : Combined plural functions (e.g., picture and waveform monitor) : With rotating reflector)

Patent 5504523: Electronic image unsteadiness compensation
(TELEVISION : CAMERA, SYSTEM AND DETAIL : Camera image stabilization : Motion correction : With rotating reflector)

Patent 5504524: Method and apparatus for controlling color balance of a video signal
(TELEVISION : CAMERA, SYSTEM AND DETAIL : Combined image signal generator and general image signal processing : Color balance (e.g., white balance) : Video teleconferencing (including access or authorization))

Patent 5504525: White balance adjustment device
(TELEVISION : CAMERA, SYSTEM AND DETAIL : Combined image signal generator and general image signal processing : Color balance (e.g., white balance) : Video teleconferencing (including access or authorization))

Patent 5504526: Solid-state image sensing device with storage-diode potential controller
(TELEVISION : CAMERA, SYSTEM AND DETAIL : Solid-state image sensor : Charge-coupled architecture : With bias charge injection : With diode in series with photocell)

Patent 5504527: Image sensor with improved charge transfer inefficiency characteristics
(TELEVISION : CAMERA, SYSTEM AND DETAIL : Solid-state image sensor : Charge-coupled architecture : With bias charge injection : With diode in series with photocell)

Patent 5504528: Method and apparatus for transmitting a video signal, and apparatus for receiving a video signal
(PULSE OR DIGITAL COMMUNICATIONS : BANDWIDTH REDUCTION OR EXPANSION : Television or motion video signal : Adaptive)

Patent 5504529: Video signal coding apparatus and decoding apparatus
(PULSE OR DIGITAL COMMUNICATIONS : BANDWIDTH REDUCTION OR EXPANSION : Television or motion video signal : Feature based : Separate coders : Feed back)

Patent 5504530: Apparatus and method for coding and decoding image signals
(PULSE OR DIGITAL COMMUNICATIONS : BANDWIDTH REDUCTION OR EXPANSION : Television or motion video signal : Predictive : Plural : Subband coding)

Patent 5504531: Method and apparatus for field rate up-conversion
(TELEVISION : FORMAT CONVERSION : Line doublers type (e.g., interlace to progressive IDTV type) : Motion adaptive : Motion adaptive)

Patent 5504532: Bi-directional television format digital signal converter with improved luminance signal-to-noise ratio
(TELEVISION : FORMAT CONVERSION : Changing number of lines for standard conversion : Frequency change of subcarrier)

Patent 5504533: Image pickup apparatus for synthesizing image signals and image signal processing system
(TELEVISION : SYNCHRONIZATION : Control of picture position : Including demodulator)

Patent 5504534: Video signal processing apparatus with synchronization control
(TELEVISION : SYNCHRONIZATION : Locking of video or audio to reference timebase : Frame or field synchronizers : With line rate switch (e.g., PAL))

Patent 5504535: Television receiver for displaying two pictures of similar or different aspect ratios simultaneously
(TELEVISION : BASIC RECEIVER WITH ADDITIONAL FUNCTION : For display of additional information : Simultaneously and on same screen (e.g., multiscreen) : Picture in picture : Locking rates)

Patent 5504536: Image display apparatus
(TELEVISION : BASIC RECEIVER WITH ADDITIONAL FUNCTION : For display of additional information : Simultaneously and on same screen (e.g., multiscreen) : Picture in picture : Locking rates)

Patent 5504538: Video signal processor for controlling the brightness and contrast of a display device
(TELEVISION : IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION : Gray scale transformation : Combined contrast control and brightness or DC level control : Including frame or field delays)

Patent 5504539: Circuit for modulating vertical positions of a picture in a wide screen television
(TELEVISION : VIDEO DISPLAY : Cathode-ray tube : With distortion, alignment or focus : Color TV)

Patent 5504540: Conductor arrangement for VGA video cables
(TELEVISION : MISCELLANEOUS : Cabinet or chassis)

Patent 5504541: Eyeglasses hanger having a reduced thickness portion vertically adjacent the tail segment opening
(OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING : SPECTACLES AND EYEGLASSES : Combined : Neck retainers)

Patent 5504542: Stereoscopic retinal camera having judging mechanism of alignment condition
(OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING : EYE EXAMINING OR TESTING INSTRUMENT : Objective type : Including eye photography :)

Patent 5504543: Ophthalmic photographing apparatus having control means for stopping the operation and fixing the in-focus state
(OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING : EYE EXAMINING OR TESTING INSTRUMENT : Objective type : Including eye photography :)

Patent 5504544: Projector with multiple lamp light source
(OPTICS: IMAGE PROJECTORS : UNITARY PLURAL REFRACTING SURFACES : Reflector between lamp and screen)

Patent 5504545: Illuminating apparatus
(OPTICS: IMAGE PROJECTORS : CABINET ENCLOSES PROJECTOR AND ONE SIDE OF SCREEN : Plural reflectors between lamp and screen)

Patent 5504546: Information recording device for camera with function for controlling information recording position on film
(PHOTOGRAPHY : WITH DATA RECORDING : Simultaneous recording of images)

Patent 5504547: Camera provided with binocular stereoscopic finder
(PHOTOGRAPHY : WITH VIEWFINDER : Selective or adjustable viewfinder field : Tilting)

Patent 5504548: Image-plane-size changeover camera
(PHOTOGRAPHY : VARIABLE FRAME MASKING : Having wide aspect ratio : Having release actuator on support)

Patent 5504549: Prewind film feed control device that ensures alignment of film frame with camera aperture
(PHOTOGRAPHY : WITH FILM DRIVE : Having significant electronic circuit detail : Prewind : Having film transport mechanism locked by perforation sensing pawl)

Patent 5504550: Camera which performs photographic adjustments based on the visual line of the photographer
(PHOTOGRAPHY : EYE TRACKING : Including film processing tank)

Patent 5504551: Automatic focusing apparatus
(PHOTOGRAPHY : WITH EXPOSURE OBJECTIVE FOCUSING MEANS, FOCUSING AID, OR RANGEFINDING MEANS : Having pursuit mode : With mechanical rangefinder)

Patent 5504552: Camera system
(PHOTOGRAPHY : EXPOSURE CONTROL CIRCUIT : Override control : Plural blades)

Patent 5504553: Automatic light adjustment apparatus for a camera on which a photographic lens can be freely mounted
(PHOTOGRAPHY : WITH OBJECT ILLUMINATION FOR EXPOSURE : Having preexposure illumination : Including focusing screen)

Patent 5504554: Automatic light emission control system for electronic flash
(PHOTOGRAPHY : WITH OBJECT ILLUMINATION FOR EXPOSURE : Having exposure synchronizer : Actuated by shutter movement : Having unison film advancing and lamp switching)

Patent 5504555: Apparatus for supplying photosensitive material
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : With film severing : And film severing)

Patent 5504556: Electrostatic recording apparatus, method of controlling the apparatus, and method of evaluating life of photoconductive member of
(ELECTROPHOTOGRAPHY : DIAGNOSTICS : With diverse image formation)

Patent 5504557: Electrophotographic-process control apparatus having improved output-image-density control function
(ELECTROPHOTOGRAPHY : CONTROL OF ELECTROPHOTOGRAPHY PROCESS : Control of developing : Bias control : In response to potential of latent image : On or adjacent to platen)

Patent 5504558: Electrophotographic photosensitive member, and electrophotographic apparatus and device unit employing the same
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Exposure or charging (e.g., fatigue treatment))

Patent 5504559: Method for image formation
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Development : Dry development : Removing excess developer : Cartridge)

Patent 5504560: Photosensitive member-protective shutter
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Charging : Drive apparatus)

Patent 5504561: Contact charger and image forming apparatus provided with same
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Charging : Contact : Needle type)

Patent 5504562: Electrostatographic reproduction machine having a platen cooling cover
(ELECTROPHOTOGRAPHY : INTERNAL MACHINE ENVIRONMENT : Forced air circulation : Supplying power to charger)

Patent 5504563: Scavengeless donor roll development
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Development : Dry development : Application member : Roller : Regulating (e.g., doctor) : By magnetic brush)

Patent 5504564: Vibratory assisted direct marking method and apparatus
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Combined with scanning : Development and cleaning)

Patent 5504565: Image forming apparatus having transfer voltage timing control
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Transfer : Dry development)

Patent 5504566: Dual metering blade for fusing color toner images
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Fixing (e.g., fusing) : Vibration)

Patent 5504567: Controller for roller fixing unit for color electrophotographic apparatus
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Fixing (e.g., fusing) : By heat and pressure : Heated roller : Pressure rollers : Vacuum or pneumatic)

Patent 5504568: Print sequence scheduling system for duplex printing apparatus
(ELECTROPHOTOGRAPHY : DOCUMENT HANDLING : Original and copy : Duplex : Lamination)

Patent 5504569: Distance-velocity predicting system
(OPTICS: MEASURING AND TESTING : RANGE OR REMOTE DISTANCE FINDING : Triangulation ranging to a point with two or more projected beams : Using photodetection at the source station(s) : With at least one paired set of staring photodetectors)

Patent 5504570: Distance measuring equipment
(OPTICS: MEASURING AND TESTING : RANGE OR REMOTE DISTANCE FINDING : With photodetection : Of pulse transit time : Having pulse transmission trigger significance : Including a displayed image)

Patent 5504571: Run-out velocity acceleration tester with direct velocity measurement
(OPTICS: MEASURING AND TESTING : VELOCITY OR VELOCITY/HEIGHT MEASURING : With light detector (e.g., photocell) : Of light interference (e.g., interferometer) : With displaced images)

Patent 5504572: Electronic imaging apparatus for determining the presence of structure within opaque objects and methods of making the same
(OPTICS: MEASURING AND TESTING : EGG CANDLING : Photoelectric : Telescopic)

Patent 5504573: Apparatus and method for analyzing particles deposited on a substrate using substantially continuous profile data
(OPTICS: MEASURING AND TESTING : OIL TESTING (E.G., CONTAMINATION) : Lamp attachments)

Patent 5504574: Measuring apparatus for adjusting optical axis of headlight and method of adjusting optical axis
(OPTICS: MEASURING AND TESTING : LAMP BEAM DIRECTION OR PATTERN : With light attenuation)

Patent 5504575: SLM spectrometer
(OPTICS: MEASURING AND TESTING : BY DISPERSED LIGHT SPECTROSCOPY : Utilizing a spectrometer : Having optical gating means : Including servo slit adjustment means)

Patent 5504576: Monochromator
(OPTICS: MEASURING AND TESTING : BY DISPERSED LIGHT SPECTROSCOPY : With monochromator structure : Having adjustable color or bandwidth : With diffraction grating means : Including an alternating reference path)

Patent 5504577: Method and apparatus for measuring meteorological visibility and scattering of light, said apparatus utilizing common optics for
(OPTICS: MEASURING AND TESTING : BY PARTICLE LIGHT SCATTERING : With photocell detection : Of back-scattered light : With diffraction grating means)

Patent 5504578: Temporal fringe pattern analysis system of a laser gain media
(OPTICS: MEASURING AND TESTING : BY LIGHT INTERFERENCE (E.G., INTERFEROMETER) : With photocell detection)

Patent 5504579: Multioscillator with combined optical and electronic signal processing
(OPTICS: MEASURING AND TESTING : BY LIGHT INTERFERENCE (E.G., INTERFEROMETER) : Rotation rate (e.g., ring laser gyros) : Four frequency, multi-oscillator, non-planar cavity : Having m x n loop coupler where (m is greater than 2) and (n is greater than or equal to 2) (e.g., passive bias))

Patent 5504580: Tuned integrated optic modulator on a fiber optic gyroscope
(OPTICS: MEASURING AND TESTING : BY LIGHT INTERFERENCE (E.G., INTERFEROMETER) : Rotation rate (e.g., ring laser gyros) : By fiber or waveguide interferometer (e.g., Sagnac effect) : Having null feedback loop : Including an alternating reference path)

Patent 5504581: Method and apparatus for measuring birefringence
(OPTICS: MEASURING AND TESTING : BY POLARIZED LIGHT EXAMINATION : Having wavefront division (by diffraction))

Patent 5504582: System and method for compensating polarization-dependent sensitivity of dispersive optics in a rotating analyzer ellipsometer system
(OPTICS: MEASURING AND TESTING : BY POLARIZED LIGHT EXAMINATION : Of surface reflection : Including polarimeters)

Patent 5504583: Generation of prints from an array of images and information relative to such images
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Recording apparatus : Photographic : Document feed)

Patent 5504584: Video movie camera capable of still photography using a stroboscopic flash
(TELEVISION SIGNAL PROCESSING FOR DYNAMIC RECORDING OR REPRODUCING : PROCESSING OF TELEVISION SIGNAL FOR DYNAMIC RECORDING OR REPRODUCING : Including television camera : Selective mode (e.g., still or motion) : Crosstalk)

Patent 5504585: Apparatus and method for providing plural pictures while searching a recording medium whereon a compressed picture signal is recorded
(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 5504586: Method and device for placing of drive counter-rolls under pressure in a machine such as a facsimile machine
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Specific image-processing circuitry)

Patent 5504587: Image reading apparatus
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Specific image-processing circuitry)

Patent 5504588: Image forming apparatus with optical reflective density of image adjusted according to image resolution discriminated from signal other
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Image reproduction system : Composite image)

Patent 5504589: System and apparatus for transmitting food orders to a central station
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Document filing and retrieval system : Composite image)

Patent 5504590: Communication system for managing data of resources of image forming unit
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Document filing and retrieval system : Composite image)

Patent 5504591: System and method for compressing graphic images
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Reduced time or bandwidth for static image communication : Condition based selection or control of image coding technique or communication arrangement : Processing or analysis of an uncoded or decoded image : Variable threshold determined by image or other condition (e.g., adaptive thresholding))

Patent 5504592: Color expressing method, color image reading apparatus and color image processing apparatus
(FACSIMILE AND STATIC PRESENTATION PROCESSING : NATURAL COLOR FACSIMILE : Color correction : Color masking)

Patent 5504593: Continuous and uniform hologram recording method and uniformly recorded hologram
(OPTICAL: SYSTEMS AND ELEMENTS : HOLOGRAPHIC SYSTEM OR ELEMENT :)

Patent 5504594: Hologram, article including hologram, and hologram recording and reconstructing methods
(OPTICAL: SYSTEMS AND ELEMENTS : HOLOGRAPHIC SYSTEM OR ELEMENT : Authentication :)

Patent 5504595: Holographic scanning
(OPTICAL: SYSTEMS AND ELEMENTS : HOLOGRAPHIC SYSTEM OR ELEMENT : Using a hologram as an optical element : With aberration correction : Crystalline material)

Patent 5504596: Exposure method and apparatus using holographic techniques
(OPTICAL: SYSTEMS AND ELEMENTS : HOLOGRAPHIC SYSTEM OR ELEMENT : For producing or reconstructing images from multiple holograms (e.g., color, etc.) : Superimposed holograms only : Multiple point hologram (e.g., fly-eye lens, etc.))

Patent 5504597: Full color display with gradient index lens array disposed between phosphor emitters and liquid crystal display
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : PARTICULAR STRUCTURE : Lens or prism separate from projection system (i.e., it is not integral part of illumination system) : Matrix including additional element (s) which correct or compensate for electrical fault)

Patent 5504598: Large screen full color display with plural adjacent display panels and enlarging graded index lens array
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : PARTICULAR STRUCTURE : Lens or prism separate from projection system (i.e., it is not integral part of illumination system) : Matrix including additional element (s) which correct or compensate for electrical fault)

Patent 5504599: Liquid crystal display device having an EL light source in a non-display region or a region besides a display picture element
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : PARTICULAR STRUCTURE : Particular illumination : Electroluminescent light source : Reflector having particular shape behind light source)

Patent 5504600: Method of making a ferroelectric liquid crystal cell including a cooling step
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : PARTICULAR STRUCTURE : Having significant detail of cell structure only : Microencapsulated or polymer dispersed liquid crystal : With particular encapsulating medium : With color formed by different color polarizer or color filter associated with each cell)

Patent 5504601: Liquid crystal dispaly apparatus with gap adjusting layers located between the display region and driver circuits
(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 : With silicon photodiode, N-I-N photoconductor structure, or P-I-P photoconductor structure)

Patent 5504602: LCD including a diffusing screen in a plane where emerging light from one pixel abuts light from adjacent pixels
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : PARTICULAR STRUCTURE : Having significant detail of cell structure only : Diffuser (on viewer side of liquid crystal) : Opaque mask or black mask)

Patent 5504603: Optical compensator for improved gray scale performance in liquid crystal display
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : PARTICULAR STRUCTURE : Having significant detail of cell structure only : Compensator or retarder (i.e., not using liquid crystal cell) : Cholesteric reflector)

Patent 5504604: Liquid crystal display elements with opposite twist domains aligned in the same direction on one substrate
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : PARTICULAR STRUCTURE : Having significant detail of cell structure only : Particular nonoptical film or layer (e.g., adhesive layer, barrier layer) : Alignment layer : Including at least one with negative intrinsic birefringence)

Patent 5504605: Liquid crystal display module having cut-away portions of the back frame for weight reduction and heat dissipation
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : PARTICULAR STRUCTURE : Holder, support, frame, or housing : Matrix including additional element (s) which correct or compensate for electrical fault)

Patent 5504606: Low power optical network unit
(OPTICAL COMMUNICATIONS : MULTIPLEX : Optical local area network (LAN) : space)

Patent 5504607: Optical interconnection network
(OPTICAL COMMUNICATIONS : MULTIPLEX : Wavelength division or frequency division (e.g., Raman, Brillouin, etc.) : Multiple Access (e.g., CDMA))

Patent 5504608: Adjustable filter for tuning multimode optical signals
(OPTICAL COMMUNICATIONS : MULTIPLEX : Wavelength division or frequency division (e.g., Raman, Brillouin, etc.) : Multiple Access (e.g., CDMA))

Patent 5504609: WDM optical communication system with remodulators
(OPTICAL COMMUNICATIONS : MULTIPLEX : Wavelength division or frequency division (e.g., Raman, Brillouin, etc.) : Different sources : Lens)

Patent 5504610: Optical mixer and its use
(OPTICAL COMMUNICATIONS : TRANSMITTER AND RECEIVER SYSTEM : Including synchronization : Dispersion compensation)

Patent 5504611: Apparatus for repowering and monitoring serial links
(OPTICAL COMMUNICATIONS : DIAGNOSTIC TESTING : Determination of communication parameter : Amplifier or repeater operation : Monitoring)

Patent 5504612: Synchronized XY laser scanner
(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) : Plural moving scanning elements : X-Y scanner :)

Patent 5504613: Optical scanner
(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 transmissive type moving element : Having moving lens :)

Patent 5504614: Method for fabricating a DMD spatial light modulator with a hardened hinge
(OPTICAL: SYSTEMS AND ELEMENTS : DEFLECTION USING A MOVING ELEMENT OR MEDIUM (OFFSETTING OR CHANGING AT LEAST A PORTION OF THE BEAM) : By moving a reflective element : Including reflective type moving element)

Patent 5504615: Acousto-optic devices utilizing thallium arsenic sulfide (T1AsS.sub.3) crystals
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL MODULATOR : Light wave temporal modulation (e.g., frequency, amplitude, etc.) : Changing bulk optical parameter : Acousto-optic : Amplitude modulation)

Patent 5504616: Wavelength conversion device
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL FREQUENCY CONVERTER : Having particular chemical composition or structure)

Patent 5504617: Optical time domain reflectometry
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL AMPLIFIER : Optical fiber : Feedback : Surge protection : Adjusting input signal power)

Patent 5504618: Extreme wide angle, very large aperture, compact, UV imaging lens
(OPTICAL: SYSTEMS AND ELEMENTS : HAVING SIGNIFICANT INFRARED OR ULTRAVIOLET PROPERTY : Lens, lens system or component : Regenerative)

Patent 5504619: Scanning drum inner face and method of scanning therefor
(OPTICAL: SYSTEMS AND ELEMENTS : POLARIZATION WITHOUT MODULATION : Light polarization without any external input : By birefringent element : For beam deflection or splitting : Using film strips)

Patent 5504620: Device for dividing an optical beam
(OPTICAL: SYSTEMS AND ELEMENTS : POLARIZATION WITHOUT MODULATION : Light polarization without any external input : By birefringent element : Prisms : Using film strips)

Patent 5504621: Two-dimensional optical low-pass filter
(OPTICAL: SYSTEMS AND ELEMENTS : DIFFRACTION : From grating : Including particular grating characteristic : Including a threaded member)

Patent 5504622: Apparatus for head up display comprising a parabolic reflective mirror
(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.) : Serially disposed along optic axis)

Patent 5504623: Lead glass composition series for gradient glasses
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With graded refractive index : Having an axial gradient : Having less than four components)

Patent 5504624: Afocal zooming optical system
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With variable magnification (e.g., zoom type) : With mechanical compensation : Four groups : + - + + Arrangement : Having crossed axes)

Patent 5504625: Variable power projection lens
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With variable magnification (e.g., zoom type) : With mechanical compensation : Four groups : + - + + Arrangement : Having crossed axes)

Patent 5504626: Wide-angle zoom lens system having a high vari-focal ratio
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With variable magnification (e.g., zoom type) : With mechanical compensation : Three groups : + - - + Arrangement)

Patent 5504627: Projection exposure system
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With reflecting element : Including concave or convex reflecting surface : With aspheric surface (e.g., Schmidt lens, etc.) : With concave and convex reflectors in series : Auto focusing)

Patent 5504628: Passive athermalization of optics
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : Single component with multiple elements : Two components)

Patent 5504629: Optical projection system with a novel lens system
(OPTICAL: SYSTEMS AND ELEMENTS : MIRROR : Plural mirrors or reflecting surfaces : Including a plurality of adjustable mirror supports)

Patent 5504630: Beam steering apparatus
(OPTICAL: SYSTEMS AND ELEMENTS : MIRROR : Plural mirrors or reflecting surfaces : Identical adjacent mirrors identically supported : With successive reflections : Bayonet coupling)

Patent 5504631: Magnetic recording/reproducing apparatus provides error corrections in write-after-read processing
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORDING FOR CHANGING DURATION, FREQUENCY OR REDUNDANT CONTENT OF AN ANALOG SIGNAL : Motion picture film)

Patent 5504632: Digital VTR that is also capable of reproducing a signal recorded with an analog VTR format
(TELEVISION SIGNAL PROCESSING FOR DYNAMIC RECORDING OR REPRODUCING : PROCESSING OF TELEVISION SIGNAL FOR DYNAMIC RECORDING OR REPRODUCING : Having another signal : Audio signal : By controlling read-write operations)

Patent 5504633: Apparatus, having a variable equalizer, for reproducing a digital signal from a record carrier
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : GENERAL RECORDING OR REPRODUCING : Specifics of equalizing : Between heads in alternate engagement with medium)

Patent 5504634: Video tape cassette adapter
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORD TRANSPORT WITH HEAD STATIONARY DURING TRANSDUCING : Tape record : Tape in container : Transport accommodates different types : Drum)

Patent 5504635: Device for adjusting a tension arm spring biasing force
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORD TRANSPORT WITH HEAD STATIONARY DURING TRANSDUCING : Tape record : Tape in container : With tape extraction : Drum)

Patent 5504636: Magnetic disk apparatus having improved support for head assembly
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORD TRANSPORT WITH HEAD STATIONARY DURING TRANSDUCING : Disk record : Tape in container)

Patent 5504637: Disk rotating device having dynamic-pressure fluid bearings
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORD TRANSPORT WITH HEAD STATIONARY DURING TRANSDUCING : Disk record : Plural disks : Rotational drive detail : Mechanical detail)

Patent 5504638: Device for driving disk-type storage medium with improved clamp and hub arrangement
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORD TRANSPORT WITH HEAD STATIONARY DURING TRANSDUCING : Disk record : Plural disks : Seating of disks : Mechanical detail)

Patent 5504639: Floating head magnetic disk recording and/or reproducing apparatus
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : FLUID BEARING HEAD SUPPORT : Disk record : Air bearing slider detail : Stationary drive)

Patent 5504640: One-piece flexure for small magnetic heads
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : HEAD MOUNTING : Disk record : Gimbal detail : Integral with load beam : Pivot/load button detail)

 

Back to EveryPatent.com