Patents 5621323 - 5621577

 

 

Patent 5621323: Surface coil elements
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE : Spectrometer components : Including a test sample and control sample)

Patent 5621324: Magnetic field generator for MRI
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE : Spectrometer components : Polarizing field magnet :)

Patent 5621325: Avoiding ghosting artifacts during surface location of subsurface transmitters
(ELECTRICITY: MEASURING AND TESTING : OF GEOPHYSICAL SURFACE OR SUBSURFACE IN SITU : For small object detection or location : To determine fluid entry)

Patent 5621326: Fault diagnosis device for passenger protection apparatus
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : In an ignitor or detonator : With support for article)

Patent 5621327: System and method for testing and fault isolation of high density passive boards and substrates
(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 5621328: Connector having a spacer detection structure
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : Electrical connectors : With barrier layer)

Patent 5621329: Automatic self-calibration system for digital teraohmmeter
(ELECTRICITY: MEASURING AND TESTING : IMPEDANCE, ADMITTANCE OR OTHER QUANTITIES REPRESENTATIVE OF ELECTRICAL STIMULUS/RESPONSE RELATIONSHIPS : Calibration : Having a lamp or light indicator)

Patent 5621330: Device and method for determining the moisture content of a bale of material with multiple layers
(ELECTRICITY: MEASURING AND TESTING : IMPEDANCE, ADMITTANCE OR OTHER QUANTITIES REPRESENTATIVE OF ELECTRICAL STIMULUS/RESPONSE RELATIONSHIPS : Distributive type parameters : Using transmitted or reflected microwaves : Where energy is transmitted through a test substance : To determine water content : Differential bridge circuit)

Patent 5621331: Automatic impedance matching apparatus and method
(ELECTRICITY: MEASURING AND TESTING : IMPEDANCE, ADMITTANCE OR OTHER QUANTITIES REPRESENTATIVE OF ELECTRICAL STIMULUS/RESPONSE RELATIONSHIPS : Distributive type parameters : Using transmitted or reflected microwaves : Where energy is reflected (e.g., reflectometry) : Having standing wave pattern : Differential bridge circuit)

Patent 5621332: Device and method for identifying and quantifying layered substances
(ELECTRICITY: MEASURING AND TESTING : IMPEDANCE, ADMITTANCE OR OTHER QUANTITIES REPRESENTATIVE OF ELECTRICAL STIMULUS/RESPONSE RELATIONSHIPS : Lumped type parameters : Using phasor or vector analysis : With a bridge circuit)

Patent 5621333: Contact device for making connection to an electronic circuit device
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : With probe elements : Cantilever : Of reflected test signal)

Patent 5621334: Method and apparatus for evaluating impurities in a liquid crystal device
(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 5621335: Digitally controlled output buffer to incrementally match line impedance and maintain slew rate independent of capacitive output loading
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : SIGNAL SENSITIVITY OR TRANSMISSION INTEGRITY : Bus or line termination (e.g., clamping, impedance matching, etc.) : With field effect-transistor)

Patent 5621336: Neuron circuit
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : THRESHOLD (E.G., MAJORITY, MINORITY, OR WEIGHTED INPUTS, ETC.) : With field effect-transistor : With field effect-transistor)

Patent 5621337: Iterative logic circuit
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : MULTIFUNCTIONAL OR PROGRAMMABLE (E.G., UNIVERSAL, ETC.) : Sequential (i.e., finite state machine) or with flip-flop : Field effect transistor)

Patent 5621338: High speed configuration independent programmable macrocell
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : MULTIFUNCTIONAL OR PROGRAMMABLE (E.G., UNIVERSAL, ETC.) : Sequential (i.e., finite state machine) or with flip-flop : Field effect transistor)

Patent 5621339: Method and apparatus for removing trapped oxide charge from a differential input stage
(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 : With reference signal)

Patent 5621340: Differential comparator for amplifying small swing signals to a full swing output
(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 : With reference signal)

Patent 5621341: Temperature-compensated, precision frequency-to-voltage convertor
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SIGNAL CONVERTING, SHAPING, OR GENERATING : Converting input frequency to output current or voltage : With logic or bistable circuit)

Patent 5621342: Low-power CMOS driver circuit capable of operating at high frequencies
(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 5621343: Demodulator circuit which demodulates pulse width modulated signals used in a semiconductor integrated circuit
(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 5621344: Circuit arrangement for coupling a first electric signal into a second electric signal
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SIGNAL CONVERTING, SHAPING, OR GENERATING : Electromagnetic pulse forming : Limiting, clipping, or clamping)

Patent 5621345: In-phase and quadrature sampling circuit
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SIGNAL CONVERTING, SHAPING, OR GENERATING : Phase shift by less than period of input : Quadrature related (i.e., 90 degrees) : With passive time delay element)

Patent 5621346: Programmable data message generation system
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC INPUT TO OUTPUT FUNCTION : Combining of plural signals : With vacuum tube)

Patent 5621347: Electronic circuit having electrically isolated digital and analog circuitry
(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)

Patent 5621348: Output driver circuit for suppressing noise generation and integrated circuit device for burn-in test
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC IDENTIFIABLE DEVICE, CIRCUIT, OR SYSTEM : With bootstrap circuit : Bridge circuit)

Patent 5621349: Device for controlling an output level of an FM detecting circuit using phase locked loop
(DEMODULATORS : FREQUENCY MODULATION DEMODULATOR : Input signal combined with local oscillator or carrier frequency signal : Including phase or frequency locked loop : With parallel signal combiners (e.g., Costas loop))

Patent 5621350: Circuit for amplifying a weak dircet voltage signal
(AMPLIFIERS : WITH PERIODIC SWITCHING INPUT-OUTPUT (E.G., FOR DRIFT CORRECTION) : Phonon type (e.g., ultrasonic wave propagating device))

Patent 5621351: Modulation amplifier for radio transmitters
(AMPLIFIERS : MODULATOR-DEMODULATOR-TYPE AMPLIFIER : Phonon type (e.g., ultrasonic wave propagating device))

Patent 5621352: Self-configurable, dual bridge, power amplifier
(AMPLIFIERS : COMBINED WITH AUTOMATIC AMPLIFIER DISABLING SWITCH MEANS : Having signal applied to magnetic means)

Patent 5621353: Operational amplifier switchable to different configurations
(AMPLIFIERS : COMBINED WITH AUTOMATIC AMPLIFIER DISABLING SWITCH MEANS : Having signal applied to magnetic means)

Patent 5621354: Apparatus and method for performing error corrected amplification in a radio frequency system
(AMPLIFIERS : WITH PILOT FREQUENCY CONTROL MEANS : Having signal applied to magnetic means)

Patent 5621355: Sampled data-biasing of continuous time integrated circuit
(AMPLIFIERS : SIGNAL FEEDBACK : Phase shift means in loop path : Positive and negative feedback)

Patent 5621356: Amplifier having a reduced distortion rate
(AMPLIFIERS : WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) : Including differential amplifier : Electron beam device)

Patent 5621357: Class AB output amplifier stage
(AMPLIFIERS : WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) : Including differential amplifier : Having field effect transistor :)

Patent 5621358: Transconductor stage with controlled gain
(AMPLIFIERS : WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) : Including differential amplifier : Having field effect transistor :)

Patent 5621359: Gain selection technique
(AMPLIFIERS : WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) : Including gain control means : Having attenuation means in signal transmission path : Having emitter degeneration)

Patent 5621360: Voltage supply isolation buffer
(OSCILLATORS : RING OSCILLATORS : Parallel connected)

Patent 5621361: One-pin integrated crystal oscillator
(OSCILLATORS : COMBINED WITH PARTICULAR OUTPUT COUPLING NETWORK : Space discharge or unilaterally conductive device in output network : Diverse-type oscillators)

Patent 5621362: Cascode oscillator having optimum phase noise and bandwidth performance
(OSCILLATORS : SOLID STATE ACTIVE ELEMENT OSCILLATOR : Transistors : L-C type : Electromechanical resonators other than piezoelectric crystals)

Patent 5621363: Modem having an electromagnetic shield for a controller
(WAVE TRANSMISSION LINES AND NETWORKS : TRANSMISSION LINE INDUCTIVE OR RADIATION INTERFERENCE REDUCTION SYSTEMS : Having branched circuits)

Patent 5621364: Weighted reflector for surface acoustic waves
(WAVE TRANSMISSION LINES AND NETWORKS : COUPLING NETWORKS : Electromechanical filter : Using surface acoustic waves : With wave-modifying means (e.g., reflectors, resonators, diffractors, multistrip couplers, etc.) : Monolithic structure)

Patent 5621365: Laminated dielectric resonator and filter
(WAVE TRANSMISSION LINES AND NETWORKS : COUPLING NETWORKS : Wave filters including long line elements : Stripline or microstrip : Plural mechanically coupled disk resonators)

Patent 5621366: High-Q multi-layer ceramic RF transmission line resonator
(WAVE TRANSMISSION LINES AND NETWORKS : COUPLING NETWORKS : Wave filters including long line elements : Stripline or microstrip : Plural mechanically coupled disk resonators)

Patent 5621367: Coaxial resonator comprising slits formed in the inner conductor
(WAVE TRANSMISSION LINES AND NETWORKS : RESONATORS (DISTRIBUTED PARAMETER TYPE) : Coaxial or shielded : With tuning : Having movable element : Monolithic structure)

Patent 5621368: Container attachable spray tube holder
(ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS : MAGNETS AND ELECTROMAGNETS : Work or object holding type : Coil shape, structure or material)

Patent 5621369: Flexible magnet
(ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS : MAGNETS AND ELECTROMAGNETS : Magnet structure or material : Permanent magnets : With cooling means)

Patent 5621370: Mounting arrangement for thermostat in a clothes dryer
(ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES : THERMALLY ACTUATED SWITCHES : With bimetallic element : Housing, casing or support structure : With position adjusting means)

Patent 5621371: Arrangement for two-dimensional optical scanning with springs of different moduli of elasticity
(REGISTERS : CODED RECORD SENSORS : Particular sensor structure : Optical : Bar code : Specific scanning detail (e.g., scanner with a specific scanning field of view) : Moving a spot of light (e.g., flying spot scanner) : Using a moving mirror :)

Patent 5621372: Single phase dry-type transformer
(INDUCTOR DEVICES : WITH TEMPERATURE MODIFIER : Ventilating passages (e.g., by coil section or core part spacers) :)

Patent 5621373: Non-explosive initiator with link wire assembly
(ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES : WITH DIVERSE ART-TYPE DEVICE :)

Patent 5621374: Amplifying circuit for simulating a unity gain buffer amplifier
(ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES : ELECTROTHERMALLY ACTUATED SWITCHES : Fusible element actuated : With manual or other mechanical contact control means : Latching trip or holding means (actuated by condition by fuse element) : Ratchet and pawl : With preset deformation)

Patent 5621375: Subminiature surface mounted circuit protector
(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 5621376: Thermostat with a folded fixing member
(ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES : THERMALLY ACTUATED SWITCHES : With bimetallic element : Bimetallic element unitary with or directly actuates contacts : Element attachment or mounting means : Of diverse operating characteristics or responsive to diverse conditions)

Patent 5621377: Sensor assembly for measuring current as a function of magnetic field gradient
(ELECTRICAL RESISTORS : RESISTANCE VALUE RESPONSIVE TO A CONDITION : Magnetic field or compass (e.g., Hall effect type) : Mechanically adjustable or variable)

Patent 5621378: Heatsink-mountable power resistor having improved heat-transfer interface with the heatsink
(ELECTRICAL RESISTORS : WITH HEAT DISSIPATING PROJECTIONS (E.G., VANES) : Force-actuated)

Patent 5621379: Tone dialing activated emergency locator signal light system
(COMMUNICATIONS: ELECTRICAL : SYSTEMS : Signal light systems : Intermittent)

Patent 5621380: Vehicle anti-theft device
(COMMUNICATIONS: ELECTRICAL : LAND VEHICLE ALARMS OR INDICATORS : Of burglary or unauthorized use : Including programmable key : Accessory (e.g., speaker, radio face plate, etc.))

Patent 5621381: Vehicle anti-theft engine control device
(COMMUNICATIONS: ELECTRICAL : LAND VEHICLE ALARMS OR INDICATORS : Of burglary or unauthorized use : Including programmable key : Accessory (e.g., speaker, radio face plate, etc.))

Patent 5621382: Display apparatus for a bicycle
(COMMUNICATIONS: ELECTRICAL : LAND VEHICLE ALARMS OR INDICATORS : For bicycle : Including keyless entry)

Patent 5621383: Ring network system capable of detecting an alarm in each node
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : With particular system function (e.g., temperature compensation, calibration) : Alarm system supervision : With ringback)

Patent 5621384: Infrared communicating device
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : With particular coupling link : Radio : Including power saving : Dosimeter)

Patent 5621385: Intrusion alarm and detection system
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Intrusion detection : Including location of misplaced item)

Patent 5621386: Elevated floor alarm system
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Intrusion detection : Disturbance of fluid pressure : Permutation)

Patent 5621387: Box
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Intrusion detection : Door or window movement : Door, cover, or lid for self-contained article (e.g., refrigerator, mailbox, drawer, cabinet, or box) : Inertia-type sensor (e.g., mercury or pendulum switch))

Patent 5621388: System for monitoring and locating a person within a preselected distance from a base-station
(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 5621389: Apparatus for detecting a fire having a liquid filled sensor tube and compensation for changes in ambient temperature
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Thermal : Photoelectric)

Patent 5621390: Temperature actuated signaling and entertainment apparatus
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Thermal : Photoelectric)

Patent 5621391: Wood moisture content measuring probe
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Fluent material : Wetness : Bridge circuit)

Patent 5621392: Flow detector
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Fluent material : Moisture or humidity (e.g., rain))

Patent 5621393: Fill-level test and measuring device
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Fluent material : Material level : Overflow : Having means locking device to article)

Patent 5621394: Smoke alarm monitoring and testing system and method
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Fluent material : Particle suspension in fluid : Smoke : Float sensor)

Patent 5621395: Networking apparatus which detects a stoppage of data transfer in a processing apparatus on a data origination side and then cancels the
(COMMUNICATIONS: ELECTRICAL : SELECTIVE : Monitoring in addition to control (e.g., supervisory) : Fault condition detection : Control to correct fault : Step-by-step)

Patent 5621396: Method and apparatus with adaptive transponder plucking
(COMMUNICATIONS: ELECTRICAL : SELECTIVE : Interrogation response : Response signal detail : Power up)

Patent 5621397: Electrical fault detecting device
(COMMUNICATIONS: ELECTRICAL : CONTINUOUSLY VARIABLE INDICATING (E.G., TELEMETERING) : With meter reading : Acoustic or vibratory (e.g., sonic, fluidic, etc.))

Patent 5621398: Programmable switch
(COMMUNICATIONS: ELECTRICAL : CONTINUOUSLY VARIABLE INDICATING (E.G., TELEMETERING) : With particular transmitter (e.g., piezoelectric, dynamo) : Inductive transmitter : Mutual inductance : Differential type : Linear variable differential transformer (LVDT) :)

Patent 5621399: Circuit for a transducer
(COMMUNICATIONS: ELECTRICAL : CONTINUOUSLY VARIABLE INDICATING (E.G., TELEMETERING) : With particular transmitter (e.g., piezoelectric, dynamo) : Capacitive transmitter : Mutual inductance)

Patent 5621400: Ice detection method and apparatus for an aircraft
(COMMUNICATIONS: ELECTRICAL : AIRCRAFT ALARM OR INDICATING SYSTEMS : Icing indicator : Particular energy guide source (e.g., sound, electric field, radio))

Patent 5621401: Circuit for sensing input conditioning of keyboard
(CODED DATA GENERATION OR CONVERSION : BODILY ACTUATED CODE GENERATOR : Including keyboard or keypad : Having optical waveguide)

Patent 5621402: Keypad scanner
(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 5621403: Data compression system with expanding window
(CODED DATA GENERATION OR CONVERSION : DIGITAL CODE TO DIGITAL CODE CONVERTERS : Adaptive coding : Pressure sensitive actuation)

Patent 5621404: Digital-to-digital sample rate converter
(CODED DATA GENERATION OR CONVERSION : DIGITAL CODE TO DIGITAL CODE CONVERTERS : Data rate conversion : Binary to or from ternary)

Patent 5621405: Variable-length decoding apparatus using relative address
(CODED DATA GENERATION OR CONVERSION : DIGITAL CODE TO DIGITAL CODE CONVERTERS : To or from variable length codes : To or from Morse code)

Patent 5621406: System for calibrating analog-to-digital converter
(CODED DATA GENERATION OR CONVERSION : CONVERTER CALIBRATION OR TESTING : Temperature compensation)

Patent 5621407: Digital/analog converter
(CODED DATA GENERATION OR CONVERSION : ANALOG TO OR FROM DIGITAL CONVERSION : Differential encoder and/or decoder (e.g., delta modulation, differential pulse code modulation) : Linearization (e.g., nonlinear transfer characteristic compensates for nonlinear transducer))

Patent 5621408: Delta sigma analog-to-digital converter with temporally interleaved architecture
(CODED DATA GENERATION OR CONVERSION : ANALOG TO OR FROM DIGITAL CONVERSION : Differential encoder and/or decoder (e.g., delta modulation, differential pulse code modulation) : Linearization (e.g., nonlinear transfer characteristic compensates for nonlinear transducer))

Patent 5621409: Analog-to-digital conversion with multiple charge balance conversions
(CODED DATA GENERATION OR CONVERSION : ANALOG TO OR FROM DIGITAL CONVERSION : Analog to digital conversion : Coarse and fine conversions : With rollover feature (i.e., antidoublestrike))

Patent 5621410: Remote prediction of lightning hazards
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : RADAR FOR METEOROLOGICAL USE (EPO) : Ground based (EPO) : Particular SAR processing techniques (e.g., squint mode, doppler beam-sharpening mode, spotlight mode, bistatic SAR, inverse SAR) (EPO))

Patent 5621411: Positioning with RF-ID transponders
(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 5621412: Multi-stage transponder wake-up, method and structure
(COMMUNICATIONS: ELECTRICAL : SELECTIVE : Interrogation response : Interrogation signal detail : Wake up (all call) : Audible)

Patent 5621413: Vehicle-ground surface measurement system
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DETERMINING VELOCITY : With plural beams (e.g., "Janus") : With plural frequencies transmission)

Patent 5621414: Location confirming system
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DIRECTIVE : Sensitivity time control (STC))

Patent 5621415: Linear cell satellite system
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DIRECTIVE : Including a satellite : With beam steering : Cursor)

Patent 5621416: Optimized processing of signals for enhanced cross-correlation in a satellite positioning system receiver
(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) : GPS receiver signal processing :)

Patent 5621417: Method and mechanism for reduction of within-train reported data
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DIRECTIVE : Position indicating (e.g., triangulation) : Land vehicle location (e.g., bus, police car : Having traffic control)

Patent 5621418: FM-very high frequency metal detector
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : High frequency type loops : Plural : With feedback)

Patent 5621419: Circular slot antenna
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : Slot type : Plural : Motor-driven)

Patent 5621420: Duplex monopole antenna
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : Active sleeve surrounds feed line : With coaxial active rod : With main and subreflector (Casse-grain type))

Patent 5621421: Antenna and mounting device and system
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : With support for antenna, reflector or director : Antenna on bracket : Antenna along length of post)

Patent 5621422: Spiral-mode microstrip (SMM) antennas and associated methods for exciting, extracting and multiplexing the various spiral modes
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : Spiral or helical type : Antenna on bracket)

Patent 5621423: Electromagnetic energy shield
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : Antenna components : Refracting means and radio wave energy filters (e.g., lenses and polarizers) : Flexible rod actuated)

Patent 5621424: Head mount display apparatus allowing easy switching operation from electronic image to external field image
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : IMAGE SUPERPOSITION BY OPTICAL MEANS (E.G., HEADS-UP DISPLAY) : Operator body-mounted heads-up display (e.g., helmet mounted display) : Number of pixels per row or column conversion (i.e., resolution conversion))

Patent 5621425: Liquid crystal display 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 : Redundancy (e.g., plural control elements or electrodes))

Patent 5621426: Display apparatus and driving circuit for driving 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 : Three or more voltages : Smooth or continuous)

Patent 5621427: Method of driving optical modulation 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 5621428: Automatic alignment of video window on a multimedia screen
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS PROCESSING : Graphic manipulation (object processing or display attributes) : Merge or overlay : Image based : Fixed overlay pattern : Weights vary across image (e.g., transition from foreground to background))

Patent 5621429: Video data display controlling method and video data display processing system
(DATA PROCESSING: PRESENTATION PROCESSING OF DOCUMENT, OPERATOR INTERFACE PROCESSING, AND SCREEN SAVER DISPLAY PROCESSING : OPERATOR INTERFACE (E.G., GRAPHICAL USER INTERFACE) : On-screen workspace or object : Window or viewpoint : Window differentiation : Resizing (e.g., scaling))

Patent 5621430: Method and apparatus for navigating multiple independent windowed images
(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 : Navigation within structure)

Patent 5621431: Animation system having variable video display rate
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS PROCESSING : Animation : Calligraphic)

Patent 5621432: Method and apparatus for generating display identification information
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS DISPLAY MEMORY SYSTEM : For storing condition code, flag or status : Character memory)

Patent 5621433: Low-cost multichannel oscilliscope for teaching and demonstration purposes
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS PROCESSING : Character generating : Character geometry processing : Image based (addressing))

Patent 5621434: Cursor manipulation system and method
(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 : Navigation within structure)

Patent 5621435: Computer user interface for non-dominant hand assisted control
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : DISPLAY PERIPHERAL INTERFACE INPUT DEVICE : Cursor mark position control device : Temporal interpolation or processing)

Patent 5621436: Keyboard with integrated mouse for data entry and control
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : DISPLAY PERIPHERAL INTERFACE INPUT DEVICE : Cursor mark position control device : Mouse : Scaling)

Patent 5621437: Data input/output control unit for touch panel interface device
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : DISPLAY PERIPHERAL INTERFACE INPUT DEVICE : Touch panel : Having programmable function key)

Patent 5621438: Pointing information processing apparatus with pointing function
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : DISPLAY PERIPHERAL INTERFACE INPUT DEVICE : Touch panel : With alignment or calibration capability (i.e., parallax problem) : Optical detector)

Patent 5621439: Voltage compensation circuit and display apparatus
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : DISPLAY DRIVING CONTROL CIRCUITRY : Display power source : Having three or more voltage levels)

Patent 5621440: Bidirectional recording device and method for producing consistent images
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Controller : Of ejector : Array : Plural pulses)

Patent 5621441: Service station for inkjet printer having reduced noise, increased ease of assembly and variable wiping capability
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Ejector mechanism (i.e., print head) : With cleaning or protector : Wiping : Movement)

Patent 5621442: Enhanced UU type ink jet printheads
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Ejector mechanism (i.e., print head) : Drop-on-demand : With piezoelectric force ejection : Layers, plates : Flow path)

Patent 5621443: Ink-jet device and method of operation thereof
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Ejector mechanism (i.e., print head) : Continuous stream (includes dispersion) : With piezoelectric force ejection)

Patent 5621444: Controlled heating of solid ink in ink-jet printing
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Fluid or fluid source handling means : Fluid supply system : For hot-melt fluid (e.g., phase-change) : With integral ejector)

Patent 5621445: Apparatus for refilling ink cartridges
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Fluid or fluid source handling means : Fluid supply system : Cartridge : With integral ejector : Drop sensors)

Patent 5621446: Method of filling an ink container
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Fluid or fluid source handling means : Fluid supply system : With aerosol formation)

Patent 5621447: Jet recording method
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Fluid or fluid source handling means : Fluid supply system : For hot-melt fluid (e.g., phase-change) : With integral ejector)

Patent 5621448: Ink jet recording method
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Fluid or fluid source handling means : Fluid (e.g., fluid specifics) : Reactive : With carrier)

Patent 5621449: Ink jet recording method operating with a chemically reactive ink
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Medium and processing means : Fluid (e.g., fluid specifics))

Patent 5621450: Container for receiving ink jet cartridge for an ink jet recording apparatus
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Housing : With unique pattern)

Patent 5621451: Image forming apparatus
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : ELECTRIC MARKING APPARATUS OR PROCESSES : Electrostatic : Hand-held)

Patent 5621452: Heat-sensitive stencil-production device capable of print checking function with printed dot image
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : THERMAL MARKING APPARATUS OR PROCESSES : By electrochemical)

Patent 5621453: Increasing image forming method and apparatus therefor in led printer
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : LIGHT OR BEAM MARKING APPARATUS OR PROCESSES : Scan of light : Plural beam scan : Tone marking : Including switching means)

Patent 5621454: Method and system for recognition of broadcast segments
(INTERACTIVE VIDEO DISTRIBUTION SYSTEMS : COMMERCIAL OR PROGRAM AIRING VERIFICATION SYSTEM : By passively monitoring receiver operation)

Patent 5621455: Video modem for transmitting video data over ordinary telephone wires
(INTERACTIVE VIDEO DISTRIBUTION SYSTEMS : LOCAL VIDEO DISTRIBUTION SYSTEM : Receiver)

Patent 5621456: Methods and apparatus for audio-visual interface for the display of multiple program categories
(INTERACTIVE VIDEO DISTRIBUTION SYSTEMS : OPERATOR INTERFACE : To facilitate tuning or selection of video signal : Electronic program guide : For displaying additional information : With separate window, panel, or screen :)

Patent 5621457: Sighting direction detecting device for vehicle
(TELEVISION : SPECIAL APPLICATIONS : Human body observation : Eye : Color sequential illumination)

Patent 5621458: Audio and video docking and control system
(TELEVISION : CAMERA, SYSTEM AND DETAIL : Combined image signal generator and general image signal processing : With details of static memory for output image (e.g., for a still camera) : Storage of additional data : Time or date, annotation :)

Patent 5621459: Image sensing apparatus which can detect optical characteristics of an image to control title insertion
(TELEVISION : CAMERA, SYSTEM AND DETAIL : Combined image signal generator and general image signal processing : Camera and video special effects (e.g., subtitling, fading, or merging) : Using distinct luminance image sensor)

Patent 5621460: Optical differentiation between plants and background utilizing a single CCD camera
(TELEVISION : CAMERA, SYSTEM AND DETAIL : With plural image scanning devices : Each supplying only one color signal : With bias illumination)

Patent 5621461: Solid state image device with gate electrodes having low resistance and a method of producing the same
(TELEVISION : CAMERA, SYSTEM AND DETAIL : Solid-state image sensor : X - Y architecture : Pixel amplifiers)

Patent 5621462: Image pickup device capable of controlling made pickup operation
(TELEVISION : CAMERA, SYSTEM AND DETAIL : Optics : Exposure control : Automatic control of iris, stop, or diaphragm : By analyzing high frequency component)

Patent 5621463: Easily expandable transport stream encoder
(TELEVISION : BANDWIDTH REDUCTION SYSTEM : Plural video programs in single channel : Color television : Periodic shuttering)

Patent 5621464: Method of reordering a decoded video picture sequence
(TELEVISION : BANDWIDTH REDUCTION SYSTEM : Data rate reduction : Including one conventional or compatible channel (e.g., two channel NTSC systems))

Patent 5621465: Color image encoder
(PULSE OR DIGITAL COMMUNICATIONS : BANDWIDTH REDUCTION OR EXPANSION : Television or motion video signal : Adaptive)

Patent 5621466: Method and apparatus for compressing and decompressing image data using two dimensional orthogonal transform with improved compression rate
(PULSE OR DIGITAL COMMUNICATIONS : BANDWIDTH REDUCTION OR EXPANSION : Television or motion video signal : Transform : Discrete cosine : Half-pixel refinement)

Patent 5621467: Temporal-spatial error concealment apparatus and method for video signal processors
(PULSE OR DIGITAL COMMUNICATIONS : BANDWIDTH REDUCTION OR EXPANSION : Television or motion video signal : Predictive : Bidirectional : Subband coding)

Patent 5621468: Motion adaptive spatio-temporal filtering of video signals
(PULSE OR DIGITAL COMMUNICATIONS : BANDWIDTH REDUCTION OR EXPANSION : Television or motion video signal : Predictive : Motion vector : Subband coding)

Patent 5621469: Scan converting apparatus for transferring subtitles on a screen
(TELEVISION : FORMAT CONVERSION : Conversion between standards with different aspect ratios : Specified chrominance signal)

Patent 5621470: Interpixel and interframe interpolation of television pictures with conversion from interlaced to progressive scanning
(TELEVISION : FORMAT CONVERSION : Line doublers type (e.g., interlace to progressive IDTV type) : Specified chrominance signal)

Patent 5621471: System and method for inserting and recovering an add-on data signal for transmission with a video signal
(TELEVISION : FORMAT : Including additional information : Pulse code modulation)

Patent 5621472: System for inexpensive phase coherent subcarrier generation
(TELEVISION : SYNCHRONIZATION : Phase locking regenerated subcarrier to color burst : With line rate switch (e.g., SECAM))

Patent 5621473: Method and device for providing video instant replay in a picture-in-picture
(TELEVISION : BASIC RECEIVER WITH ADDITIONAL FUNCTION : Instant replay or freeze frame : Format detection)

Patent 5621474: Filter working on image digital signals for video appliances
(TELEVISION : IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION : Combined noise reduction and transition sharpening : Specified color (e.g., saturation and contrast control))

Patent 5621475: Circuit for judging the existence of television image signals
(TELEVISION : IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION : Noise or undesired signal reduction : Specified color (e.g., saturation and contrast control))

Patent 5621476: Reducing the effects of noise in level number transformation
(TELEVISION : IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION : Noise or undesired signal reduction : For removal of low amplitude random noise (e.g., variable bandwidth) : Averaging type : Using frame or field delays (e.g., motion adaptive) : Window signal generator (e.g., rectangle))

Patent 5621477: Digital decoder and method for decoding composite video signals
(TELEVISION : IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION : Chrominance signal demodulator : Digital : Luminance transition controls chrominance transition)

Patent 5621478: Multistandard decoder for video signals and video signal decoding method
(TELEVISION : IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION : Chrominance signal demodulator : Digital : Luminance transition controls chrominance transition)

Patent 5621479: Method of driving a liquid crystal display device
(TELEVISION : IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION : Chrominance signal amplitude control (e.g., saturation) : Automatic : Picture responsive (e.g., overload) : For color television)

Patent 5621480: Image quality correction circuit and method based on color density
(TELEVISION : IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION : Gray scale transformation : Automatic range control (e.g., AGC, automatic contrast control) : Color television : Selects or blends two or more separated signals to derive output)

Patent 5621481: Motion vector detecting apparatus for determining interframe, predictive error as a function of interfield predictive errors
(TELEVISION : IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION : Motion vector generation : Diode)

Patent 5621482: Interface system for a television receiver
(TELEVISION : RECEIVER CIRCUITRY : Modulator)

Patent 5621483: Polarity selection circuit for bi-phase stable FPLL
(TELEVISION : RECEIVER CIRCUITRY : Demodulator : Plural processing units)

Patent 5621484: User-programmable control device for a television apparatus
(TELEVISION : RECEIVER CIRCUITRY : Remote control : Tuning voltage)

Patent 5621485: Apparatus and method for synchronizing a horizontal deflection signal with a horizontal sync signal
(TELEVISION : RECEIVER CIRCUITRY : Automatic frequency control : Tuning voltage)

Patent 5621486: Efficient optical system for a high resolution projection display employing reflection light valves
(TELEVISION : VIDEO DISPLAY : Projection device : Plural parallel light modulators : With optical element : Electron beam addressed)

Patent 5621487: Picture display apparatus having multiple diffusing filter surfaces
(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 5621488: Apparatus for imaging and diagnosing a cornea
(OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING : EYE EXAMINING OR TESTING INSTRUMENT : Objective type : Including eye photography :)

Patent 5621489: Medium having photographically recorded digital audio bits
(OPTICS: MOTION PICTURES : WITH SOUND ACCOMPANIMENT : Common picture and sound record carrier systems : Flexible strip type : On picture and sound records)

Patent 5621490: Sound system for compact distribution print
(OPTICS: MOTION PICTURES : WITH PLURAL PICTURE SIZES AND TYPES : Magazines)

Patent 5621491: Vibration detection apparatus
(PHOTOGRAPHY : CAMERA SHAKE SENSING : Including film processing tank)

Patent 5621492: Distributed photographic system for taking self portraits
(PHOTOGRAPHY : STUDIO STRUCTURE : Photo booth :)

Patent 5621493: Photographic camera with shifting cartridge holder
(PHOTOGRAPHY : CAMERA DETAIL : Body structure or housing : Film chamber detail : Having viewing port)

Patent 5621494: Camera having light-source determining function
(PHOTOGRAPHY : HAVING WIRELESS REMOTE CONTROL CIRCUIT : Having stabilization system)

Patent 5621495: Representation of depth of field in camera
(PHOTOGRAPHY : WITH EXPOSURE OBJECTIVE FOCUSING MEANS, FOCUSING AID, OR RANGEFINDING MEANS : Having indicator)

Patent 5621496: Photoprinting process and device
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : Sheet feeding)

Patent 5621497: Pattern forming method and projection exposure tool therefor
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : Step and repeat : Reflector between original and photo-sensitive paper)

Patent 5621498: Projection exposure apparatus
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : Illumination systems or details : Reflector between original and photo-sensitive paper)

Patent 5621499: Scanning exposure apparatus
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : Illumination systems or details : Reflector between original and photo-sensitive paper)

Patent 5621500: Method and apparatus for projection exposure
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : Illumination systems or details : Including shutter, diaphragm, polarizer or filter : Vertical optical path)

Patent 5621501: Opening-closing mechanism for an automatic original feeding apparatus
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : Detailed holder for original : Including adjustable or selective masking frame)

Patent 5621502: Mosaic fabrication fixture and method of making mosaics
(PHOTOCOPYING : CONTACT PRINTING : Superimposed carriers (e.g., montage or combination printing) : Including vacuum, fluid or spring pressure)

Patent 5621503: Image forming apparatus and method with anti-forgery function
(ELECTROPHOTOGRAPHY : DOCUMENT HANDLING : Original : Unauthorized copy prevention : Lamination)

Patent 5621504: Toner transferring device
(ELECTROPHOTOGRAPHY : COMBINED WITH DIVERSE SUBJECT MATTER :)

Patent 5621505: Developing apparatus having rotatable developer supply member for developer carrying member
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Development : Dry development : Application member : Magnetic brush : Regulating (e.g., doctor) : Auxiliary electrode)

Patent 5621506: Electrostatic recording apparatus providing an electric field adjacent a developer roller
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Development : Dry development : Application member : Roller : Regulating (e.g., doctor) : By magnetic brush)

Patent 5621507: Electrostatic latent image-developing device and toner cartridge used therefor
(ELECTROPHOTOGRAPHY : HAVING PARTICULAR STRUCTURE : Modular or displaceable : Process cartridge unit : Developer seal)

Patent 5621508: Replacement seal for toner hopper
(ELECTROPHOTOGRAPHY : INTERNAL MACHINE ENVIRONMENT : Particle or contaminant control : Seal : Developer seal : Toner cartridge : Optical detector)

Patent 5621509: Apparatus and method for cleaning a transfer device of an image forming apparatus
(ELECTROPHOTOGRAPHY : CONTROL OF ELECTROPHOTOGRAPHY PROCESS : Of plural processes : Single detector for plural toners)

Patent 5621510: Image heating apparatus with driving roller having low thermal expansion coefficient outer layer
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Fixing (e.g., fusing) : By heat : Contact : Coordinated with sheet movement)

Patent 5621511: Fixing apparatus with sheet interval adjustment and fixing interruptions
(ELECTROPHOTOGRAPHY : CONTROL OF ELECTROPHOTOGRAPHY PROCESS : Having temperature or humidity detection : Single detector for plural toners)

Patent 5621512: Image fixing device having an endless belt and non-rotating pressure-applying member
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Fixing (e.g., fusing) : By heat and pressure : Parting agent applicator)

Patent 5621513: Electrically biased sheet stripping apparatus
(ELECTROPHOTOGRAPHY : DOCUMENT HANDLING : Copy : Delivering from transfer position : Stripping from photoconductive member : Speed control of conveyance)

Patent 5621514: Random pulse burst range-resolved doppler laser radar
(OPTICS: MEASURING AND TESTING : RANGE OR REMOTE DISTANCE FINDING : With photodetection : Of frequency difference : Having pulse transmission trigger significance)

Patent 5621515: Identification system using regions of predetermined properties interspersed among regions of other properties
(OPTICS: MEASURING AND TESTING : DOCUMENT PATTERN ANALYSIS OR VERIFICATION : Lamp attachments)

Patent 5621516: Optical device for forming an image of an uneven surface
(OPTICS: MEASURING AND TESTING : DOCUMENT PATTERN ANALYSIS OR VERIFICATION : Lamp attachments)

Patent 5621517: Method and apparatus for testing fiber optic telephone lines
(OPTICS: MEASURING AND TESTING : FOR OPTICAL FIBER OR WAVEGUIDE INSPECTION : Lamp attachments)

Patent 5621518: Optical time domain reflectometer (OTDR) with improved dynamic range and linearity
(OPTICS: MEASURING AND TESTING : FOR OPTICAL FIBER OR WAVEGUIDE INSPECTION : Lamp attachments)

Patent 5621519: Imaging system transfer function control method and apparatus
(OPTICS: MEASURING AND TESTING : LENS OR REFLECTIVE IMAGE FORMER TESTING : For optical transfer function : Including polarimeters)

Patent 5621520: Transparency inspection method for blurriness in vehicle windscreens with elastomeric liners
(OPTICS: MEASURING AND TESTING : LENS OR REFLECTIVE IMAGE FORMER TESTING : For optical transfer function : Including polarimeters)

Patent 5621521: Checking apparatus for array electrode substrate
(OPTICS: MEASURING AND TESTING : INSPECTION OF FLAWS OR IMPURITIES : Integrating spheres)

Patent 5621522: Fiber optic probe for determination of trace levels of organic pollutants using Raman spectroscopy
(OPTICS: MEASURING AND TESTING : BY DISPERSED LIGHT SPECTROSCOPY : With Raman type light scattering : With particular illumination means)

Patent 5621523: Method and apparatus for measuring particles in a fluid
(OPTICS: MEASURING AND TESTING : FOR SIZE OF PARTICLES : By particle light scattering : Having adjustable color or bandwidth)

Patent 5621524: Method for testing ink-jet recording heads
(OPTICS: MEASURING AND TESTING : BY PARTICLE LIGHT SCATTERING : With photocell detection : Having adjustable color or bandwidth)

Patent 5621525: Apparatus and method for measuring the power density of a laser beam with a liquid crystal
(OPTICS: MEASURING AND TESTING : BY LIGHT INTERFERENCE (E.G., INTERFEROMETER) : With photocell detection)

Patent 5621526: Interferometer to eliminate the influence of clouds
(OPTICS: MEASURING AND TESTING : BY LIGHT INTERFERENCE (E.G., INTERFEROMETER) : With photocell detection)

Patent 5621527: Apparatus for measuring relative displacement between the apparatus and a scale which a grating is formed
(OPTICS: MEASURING AND TESTING : BY LIGHT INTERFERENCE (E.G., INTERFEROMETER) : For dimensional measurement : Displacement or distance : Having wavefront division (e.g., by diffraction) : Having wavefront division (e.g., by diffraction))

Patent 5621528: Method and dichrograph for measurement of circular dichroism, optical rotation and absorption spectra
(OPTICS: MEASURING AND TESTING : BY POLARIZED LIGHT EXAMINATION : Having wavefront division (by diffraction))

Patent 5621529: Apparatus and method for projecting laser pattern with reduced speckle noise
(OPTICS: MEASURING AND TESTING : SHAPE OR SURFACE CONFIGURATION : Triangulation : Projection of structured light pattern : Pattern is series of non-intersecting lines : Of transmission (e.g., lens))

Patent 5621530: Apparatus and method for verifying the coplanarity of a ball grid array
(OPTICS: MEASURING AND TESTING : BY CONFIGURATION COMPARISON : With comparison to master, desired shape, or reference voltage : For comparison with master or desired configuration)

Patent 5621531: Self-aligning sewer pipe laser
(OPTICS: MEASURING AND TESTING : BY ALIGNMENT IN LATERAL DIRECTION : With object being compared and light beam moved relative to each other (e.g., scanning))

Patent 5621532: Laser scanning microscope utilizing detection of a far-field diffraction pattern with 2-dimensional detection
(OPTICS: MEASURING AND TESTING : FOR LIGHT TRANSMISSION OR ABSORPTION : Of photographic film : With scanning, sweeping, or moving detector over film : With light detector)

Patent 5621533: Method for automatically controlling an engraver in response to a plurality of engraving setup parameters which may be input in real units
(FACSIMILE AND STATIC PRESENTATION PROCESSING : STATIC PRESENTATION PROCESSING (E.G., PROCESSING DATA FOR PRINTER, ETC.) : Attribute control : Engraving or perforating material to form a printing surface (e.g., printing plate, cylinder, or stencil) : Look-up table for image processing or print attribute data (e.g., threshold value, print element property))

Patent 5621535: Direct digital synthesis of video signal recording waveforms from baseband digital signals provided by a computer interface for
(TELEVISION SIGNAL PROCESSING FOR DYNAMIC RECORDING OR REPRODUCING : PROCESSING OF COLOR TELEVISION SIGNAL FOR DYNAMIC RECORDING OR REPRODUCING : Frequency modulation for recording on the same track : Comb filtering)

Patent 5621536: Apparatus that automatically sets key frame information
(TELEVISION SIGNAL PROCESSING FOR DYNAMIC RECORDING OR REPRODUCING : PROCESSING OF TELEVISION SIGNAL FOR DYNAMIC RECORDING OR REPRODUCING : Editing : Using static memory or delay means)

Patent 5621537: Color signal processing circuit in color VTR
(TELEVISION SIGNAL PROCESSING FOR DYNAMIC RECORDING OR REPRODUCING : PROCESSING OF COLOR TELEVISION SIGNAL FOR DYNAMIC RECORDING OR REPRODUCING : Time (e.g., phase or frequency) correction : Phase or frequency matching of color television signal component to an external reference : Disc)

Patent 5621538: Method for synchronizing computerized audio output with visual output
(TELEVISION SIGNAL PROCESSING FOR DYNAMIC RECORDING OR REPRODUCING : PROCESSING OF TELEVISION SIGNAL FOR DYNAMIC RECORDING OR REPRODUCING : Having time code for addressing signal : Having auxiliary dynamic memory means)

Patent 5621539: Public fax services and system
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Specific image-processing circuitry)

Patent 5621540: Facsimile apparatus and printing control method therefor
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Facsimile memory monitoring : Composite image)

Patent 5621541: Image processing apparatus for discriminating the input device and selecting recording sheets based thereon
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Facsimile relay system : Composite image)

Patent 5621542: Image processing apparatus and method with weighting of error data generated in quantization
(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 5621543: System for compressing a halftone image and method therefor
(IMAGE ANALYSIS : IMAGE COMPRESSION OR CODING : Shape, icon, or feature-based compression : Checking spelling for recognition)

Patent 5621544: Image reading device and image information processing apparatus
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Picture signal generator : Scanning : Linear scanning pattern : Specified sheet clamp)

Patent 5621545: Image production using color error diffusion
(FACSIMILE AND STATIC PRESENTATION PROCESSING : NATURAL COLOR FACSIMILE : Color correction : Color masking)

Patent 5621546: Method and apparatus for vector error diffusion with output color control
(FACSIMILE AND STATIC PRESENTATION PROCESSING : NATURAL COLOR FACSIMILE : Specific image-processing circuitry : Halftone processing : Halftone screening : Variable threshold determined by image or other condition (e.g., adaptive thresholding))

Patent 5621547: Illumination device and application to a display device
(OPTICAL: SYSTEMS AND ELEMENTS : HOLOGRAPHIC SYSTEM OR ELEMENT : Using a hologram as an optical element : Holograph on curved substrate)

Patent 5621548: Laser scanner employing a holeless hologon disk and fabrication method therefor
(OPTICAL: SYSTEMS AND ELEMENTS : HOLOGRAPHIC SYSTEM OR ELEMENT : Using a hologram as an optical element : Scanner : Flat rotating disk :)

Patent 5621549: Method and apparatus for positioning a light beam on a holographic media
(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 5621550: Color liquid crystal display device having three dichroic mirrors per pixel
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : LIQUID CRYSTAL SYSTEM : Projector including liquid crystal cell (s) : Exposure device for lithography)

Patent 5621551: Immersed dichroic system for single projection lens liquid crystal video projector
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : LIQUID CRYSTAL SYSTEM : Projector including liquid crystal cell (s) : Video/motion picture projector :)

Patent 5621552: Electrooptical liquid crystal system containing dual frequency liquid crystal mixture
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : PARTICULAR STRUCTURE : Having significant detail of cell structure only : Microencapsulated or polymer dispersed liquid crystal : With each cell displaying a different pattern)

Patent 5621553: Liquid crystal display device with polymer wall formation rate in peripheral region of display section at least 90%
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : PARTICULAR STRUCTURE : Having significant detail of cell structure only : Liquid crystal seal : Having connection detail to external circuit)

Patent 5621554: Liquid crystal display device having interconnecting lines between column electrodes and method of driving the display device
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : PARTICULAR STRUCTURE : Having significant detail of cell structure only : Electrode or bus detail (i.e., excluding supplemental capacitor and transistor electrodes) : Insulating layer)

Patent 5621555: Liquid crystal display having redundant pixel electrodes and thin film transistors and a manufacturing method thereof
(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.) : Matrix including additional element (s) which correct or compensate for electrical fault : Two terminal nonlinear switching device (e.g., N-I-N, S-I-S, Ferroelectric, etc.))

Patent 5621556: Method of manufacturing active matrix LCD using five masks
(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 5621558: Liquid crystal electro-optical device having alignment films for perpendicular alignment
(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 : For perpendicular alignment : Having structure produced by rubbing under particular rubbing conditions (e.g., particular direction, rubbing force, by using named rubbing material or roller, etc.))

Patent 5621559: Ferroelectric optical computing device with low optical power non-destructive read-out
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL COMPUTING WITHOUT DIFFRACTION : Hardware for producing a hologram)

Patent 5621560: Method and system for reducing chirp in external modulation
(OPTICAL COMMUNICATIONS : TRANSMITTER : Having particular modulation : Soliton)

Patent 5621561: Laser scanner incorporating variable focus mechanism for rapidly changing beam spot size
(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) : Having particular focusing element to receive scanned light : Having a common axis of rotation)

Patent 5621562: Optical Scanning device
(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) : Having particular focusing element to receive scanned light : Anamorphic element :)

Patent 5621563: Method and apparatus for positioning a focusing lens
(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 5621564: Semiconductor optical modulator
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL MODULATOR : Light wave temporal modulation (e.g., frequency, amplitude, etc.) : Changing bulk optical parameter : Electro-optic : Modulation of polarized light via modulating input signal : Using reflective or cavity structure : Semiconductor :)

Patent 5621565: Protraction device for a measuring microscope
(OPTICAL: SYSTEMS AND ELEMENTS : COMPOUND LENS SYSTEM : Microscope : Two or more in a series)

Patent 5621566: Telescope and a telescope holder
(OPTICAL: SYSTEMS AND ELEMENTS : COMPOUND LENS SYSTEM : Telescope : Transparent slide)

Patent 5621567: Binocular viewing device and its assembly process
(OPTICAL: SYSTEMS AND ELEMENTS : COMPOUND LENS SYSTEM : Telescope : Binocular : With mechanical adjustment)

Patent 5621568: Device for adjusting the diopter setting of a finder assembly
(OPTICAL: SYSTEMS AND ELEMENTS : COMPOUND LENS SYSTEM : Variable magnification : With prism or U-shaped optical path)

Patent 5621569: Rear-view mirror for vehicles
(OPTICAL: SYSTEMS AND ELEMENTS : GLARE OR UNWANTED LIGHT REDUCTION : With mirror (e.g., mirror with glare screen, etc.) : Anti-glare mirror : Having another filter)

Patent 5621570: Mirror housing for an exterior rear-view mirror on a vehicle
(OPTICAL: SYSTEMS AND ELEMENTS : PROTECTION FROM MOISTURE OR FOREIGN PARTICLE : Extension of tubular element adjustable)

Patent 5621571: Integrated retroreflective electronic display
(OPTICAL: SYSTEMS AND ELEMENTS : SIGNAL REFLECTOR : 3-Corner retroreflective (i.e., cube corner, trihedral, or triple reflector type) : Vibration)

Patent 5621572: Optical system for a head mounted display using a retro-reflector and method of displaying an image
(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 5621573: Microoptic bidirectional module
(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 : Wavelength selective (e.g., dichroic mirror, etc.) : With additional reflector (e.g., serial reflections, etc.))

Patent 5621574: Objective lens system utilizing axial gradient index (grin) lens elements
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With graded refractive index : Having an axial gradient : Having less than four components)

Patent 5621575: Wide angle lens system
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : Reverse telephoto : With five or less components : Having curvilinear lens)

Patent 5621576: Optical head for optical memory disk recording device with elastic support in a direction parallel to a recording surface
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With support : Lens movable in its plane : Electromagnetic motive power : With third component biconvex)

Patent 5621577: External rear-view mirror for commerical vehicles
(OPTICAL: SYSTEMS AND ELEMENTS : MIRROR : With support : Mirror movable relative to support : Including an adjustable mirror)

 

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