Patents 5138309 - 5138562

 

 

Patent 5138309: Electronic switch matrix for a video display system
(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 : Color)

Patent 5138310: Light-emitting element array driver circuit
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : PLURAL PHYSICAL DISPLAY ELEMENT CONTROL SYSTEM (E.G., NON-CRT) : Display elements arranged in matrix (e.g., rows and columns) : Solid body light emitter (e.g., LED) : Optical addressing (e.g., photodetection))

Patent 5138311: Communication system having adaptable message information formats
(COMMUNICATIONS: ELECTRICAL : SELECTIVE : Having indication or alarm (e.g., location indication) : Code responsive (i.e., paging) : Paging terminal (i.e., element prior to the transmitter) : Multiple transmitters)

Patent 5138312: Pager with a television function
(COMMUNICATIONS: ELECTRICAL : SELECTIVE : Having indication or alarm (e.g., location indication) : Code responsive (i.e., paging) : Message presentation : Display : Including graphics : Using additional record or carrier code)

Patent 5138313: Electrically insulative gap sub assembly for tubular goods
(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.) : Electromagnetic energy (e.g., radio frequency, etc.) : Control of drilling apparatus using magnetic field)

Patent 5138314: Method for converting and/or detecting data
(CODED DATA GENERATION OR CONVERSION : DIGITAL CODE TO DIGITAL CODE CONVERTERS : To or from minimum d.c. level codes : Binary to or from ternary)

Patent 5138315: Arrangements for variable-length encoding and decoding of digital signals
(CODED DATA GENERATION OR CONVERSION : DIGITAL CODE TO DIGITAL CODE CONVERTERS : To or from variable length codes : To or from Morse code)

Patent 5138316: Variable length code demodulating apparatus and address control method thereof
(CODED DATA GENERATION OR CONVERSION : DIGITAL CODE TO DIGITAL CODE CONVERTERS : To or from variable length codes : To or from Morse code)

Patent 5138317: Digital to analogue converter adapted to select input sources based on a preselected algorithm once per cycle of a sampling signal
(CODED DATA GENERATION OR CONVERSION : ANALOG TO OR FROM DIGITAL CONVERSION : Digital to analog conversion : Linearization (e.g., nonlinear transfer characteristic compensates for nonlinear transducer))

Patent 5138318: Differential voltage buffer amplifier circuit and serial-parallel A-D converter
(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 5138319: Two stage A/D converter utilizing dual multiplexed converters with a common converter
(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 5138320: Skew code generator for measuring pulses width using a delay line
(CODED DATA GENERATION OR CONVERSION : CODE GENERATOR OR TRANSMITTER : Analog to digital conversion)

Patent 5138321: Method for distributed data association and multi-target tracking
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : AIR TRAFFIC CONTROL : Microwave landing system (MLS))

Patent 5138322: Method and apparatus for radar measurement of ball in play
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DETERMINING DISTANCE : Triangulation : FM type)

Patent 5138323: Method and apparatus for providing optimum radar elevation patterns at long and short ranges
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DETERMINING DISTANCE : With pulse modulation : Combined with determining direction)

Patent 5138324: Device to measure the elevation angle for a radar equipped with a double curvature reflective type antenna
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DETERMINING DISTANCE : With pulse modulation : Combined with determining direction : With azimuth and elevation determination : With pulse modulation (e.g., "Chirp"))

Patent 5138325: Shipboard sensor exerciser apparatus
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : TESTING OR CALIBRATING OF RADAR SYSTEM : By simulation : With storage tube)

Patent 5138326: Magnetic field generating assembly and method
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE : Spectrometer components : Polarizing field magnet :)

Patent 5138327: Antenna pattern selection for optimized communications and avoidance of people
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DIRECTIVE : Including directive communication system : Eliptical)

Patent 5138328: Integral diversity antenna for a laptop computer
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : With radio cabinet :)

Patent 5138329: Antenna switch
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : With radio cabinet :)

Patent 5138330: Pane antenna having an amplifier
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : With vehicle : Supported by vehicle body :)

Patent 5138331: Broadband quadrifilar phased array helix
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : Spiral or helical type : Antenna on bracket)

Patent 5138332: Ink jet printing apparatus
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Fluid or fluid source handling means : With means to remove and/or accommodate bubbles in the fluid : With recirculation)

Patent 5138333: Method of operating pulsed droplet deposition apparatus
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Controller : Of ejector : Drive waveform : Plural pulses :)

Patent 5138334: Pneumatic surface cleaning method and apparatus for ink jet printheads
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Ejector mechanism (i.e., print head) : With cleaning or protector : Gas : Full-line array)

Patent 5138335: Thermal printer with removable ribbon unit
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : THERMAL MARKING APPARATUS OR PROCESSES : Record receiver and transfer medium feeding or driving means : Specific conductor means (e.g., electrode, conducting pattern, etc.))

Patent 5138336: Thermal printer having thermal heads with adjustable overlap
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : THERMAL MARKING APPARATUS OR PROCESSES : Recording means engaging or holding means : Adjustable : Using pulse width modulation)

Patent 5138337: Apparatus for grey level printing using a binary architectured printhead
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : LIGHT OR BEAM MARKING APPARATUS OR PROCESSES : Scan of light : Plural beam scan : Driving circuitry : Including switching means)

Patent 5138338: Edge emission type electroluminescent (EL) printer
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : LIGHT OR BEAM MARKING APPARATUS OR PROCESSES : Scan of light : Plural beam scan : Driving circuitry : Including switching means)

Patent 5138339: Microaddressability via overscanned illumination for optical printers and the like having high gamma photosensitive recording media
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : LIGHT OR BEAM MARKING APPARATUS OR PROCESSES : Scan of light : Plural beam scan : Tone marking : Including switching means)

Patent 5138340: Temperature controlled light source for interlaced printer
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : LIGHT OR BEAM MARKING APPARATUS OR PROCESSES : Scan of light : Plural beam scan : Driving circuitry : Including switching means)

Patent 5138341: Plotter with drive rollers having variable radial contact surfaces
(RECORDERS : RECORD RECEIVERS AND/OR DRIVING MEANS THEREFOR : Web : Card receiver)

Patent 5138342: Ink jet cartridge and ink jet recording apparatus employing the same
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Ejector mechanism (i.e., print head) : Electrical connector means : Nozzles)

Patent 5138343: Ink jet recording apparatus with recovery means
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Ejector mechanism (i.e., print head) : With cleaning or protector : Nozzle cap, cover, or protection : Suction :)

Patent 5138344: Ink jet apparatus and ink jet cartridge therefor
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Fluid or fluid source handling means : Fluid supply system : Cartridge : Drop correction)

Patent 5138345: Method and apparatus for supplying a substance between electrodes, the viscous adhesiveness of which is reduced at one electrode to attach a
(RECORDERS : MARKERS AND/OR DRIVING MEANS THEREFOR : With ink supply to marker : Card receiver)

Patent 5138346: Recording electrode and image forming apparatus using the same
(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 5138347: Thin film electroluminescent edge emitter structure with optical lens and multi-color light emission systems
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : ELECTRIC MARKING APPARATUS OR PROCESSES : Electrostatic : Multicolor : Plural heads : Using light as exposure means : Drop sensors)

Patent 5138348: Apparatus for generating ions using low signal voltage and apparatus for ion recording using low signal voltage
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : ELECTRIC MARKING APPARATUS OR PROCESSES : Electrostatic : By information carrying flow of invisible charged particles : Including driving circuitry : Laminated head including charged particle generation layer)

Patent 5138349: Apparatus for reducing the effects of ambient humidity variations upon an ionographic printing device
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : ELECTRIC MARKING APPARATUS OR PROCESSES : Electrostatic : By information carrying flow of invisible charged particles : Specific ionographic head : Fluid assisted charged particle flow or generation : Drop sensors)

Patent 5138350: Camera apparatus for preventing initialization of partly or fully exposed film stored in a self-thrusting cassette
(PHOTOGRAPHY : HAVING CAMERA INDICATOR : Film condition indicator : Electro-optical element)

Patent 5138351: Battery charging apparatus with removable plug module
(ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING : CELL OR BATTERY CHARGER STRUCTURE : Having plug for A-C receptacle : Employing "jumper" cable)

Patent 5138352: Camera
(PHOTOGRAPHY : WITH FILM DRIVE : Double exposure prevention : Plural)

Patent 5138353: Photo-sensitive printing plate processing apparatus
(PHOTOGRAPHY : FLUID-TREATING APPARATUS : Having fluid-circulating means : And fluid spraying means : Plural stations)

Patent 5138354: Camera having detectors for detecting the photo-taking intention of a photographer
(PHOTOGRAPHY : HAVING VARIABLE FOCAL LENGTH OF CAMERA OBJECTIVE : Automatic change of focal length : Constant image size : Plural tanks)

Patent 5138355: Aperture and focus adjusting device for a camera
(PHOTOGRAPHY : WITH EXPOSURE OBJECTIVE FOCUSING MEANS, FOCUSING AID, OR RANGEFINDING MEANS : Dual purpose motor : Image correlation type)

Patent 5138356: Automatic focus adjusting apparatus of a camera
(PHOTOGRAPHY : WITH EXPOSURE OBJECTIVE FOCUSING MEANS, FOCUSING AID, OR RANGEFINDING MEANS : Having pursuit mode : With mechanical rangefinder)

Patent 5138357: Focus adjuster
(PHOTOGRAPHY : WITH EXPOSURE OBJECTIVE FOCUSING MEANS, FOCUSING AID, OR RANGEFINDING MEANS : Having accumulation photoarray and time control means : With mechanical rangefinder)

Patent 5138358: Autofocusing apparatus utilizing intermittent light projection
(PHOTOGRAPHY : WITH EXPOSURE OBJECTIVE FOCUSING MEANS, FOCUSING AID, OR RANGEFINDING MEANS : Ambient light compensating : With mechanical rangefinder)

Patent 5138359: Focus detecting apparatus in which matching with the image performance of an objective lens is achieved
(PHOTOGRAPHY : WITH EXPOSURE OBJECTIVE FOCUSING MEANS, FOCUSING AID, OR RANGEFINDING MEANS : Plural focusing or rangefinding areas : With Position Sensitive Device (PSD))

Patent 5138360: Camera focus detector
(PHOTOGRAPHY : WITH EXPOSURE OBJECTIVE FOCUSING MEANS, FOCUSING AID, OR RANGEFINDING MEANS : Reliability of focus/distance signal : With mechanical rangefinder)

Patent 5138361: Electronic flash control device employing a plurality of control signals
(PHOTOGRAPHY : WITH OBJECT ILLUMINATION FOR EXPOSURE : Having artificial illumination termination control : For red-eye reduction)

Patent 5138362: Auto strobe camera
(PHOTOGRAPHY : WITH OBJECT ILLUMINATION FOR EXPOSURE : Activated under low light condition : Having indicator)

Patent 5138363: Transfer device for duplex copier using a single charger and transfer belt
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : Copying both sides of original : Duplex :)

Patent 5138364: Recording system
(PHOTOCOPYING : USING MICROCAPSULES :)

Patent 5138365: Image recording apparatus which discharges an output image sheet upon completion of photosensitive recording medium adjustment
(PHOTOCOPYING : USING MICROCAPSULES : Sheet feeding : Having document handling detection :)

Patent 5138366: Method of printing color borders with color prints and prints with integral borders
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : Multicolor picture : And film severing)

Patent 5138367: Color adjustment device of color image forming apparatus
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : Multicolor picture : And film severing)

Patent 5138368: Fabrication of printed wiring boards by projection imaging
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : Step and repeat : Reflector between original and photo-sensitive paper)

Patent 5138369: Magnification adjusting mechanism
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : Focus or magnification control : Reflector between original and photo-sensitive paper)

Patent 5138370: Method and apparatus for recording images using diffused light
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : Illumination systems or details : Including shutter, diaphragm, polarizer or filter : Vertical optical path)

Patent 5138371: Apparatus for manipulating roll films in copying machines
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : Detailed holder for photosensitive paper : Including shutter, diaphragm, polarizer or filter)

Patent 5138372: Image forming apparatus and an image member cartridge
(ELECTROPHOTOGRAPHY : HAVING PARTICULAR STRUCTURE : Modular or displaceable : Process cartridge unit : Developer seal)

Patent 5138373: Copier or printer component position floating magnetic actuator
(ELECTROPHOTOGRAPHY : DIAGNOSTICS : With diverse image formation)

Patent 5138374: Image forming apparatus including means for receiving an image member cartridge
(ELECTROPHOTOGRAPHY : HAVING PARTICULAR STRUCTURE : Modular or displaceable : Process cartridge unit : Developer seal)

Patent 5138375: Image forming apparatus
(ELECTROPHOTOGRAPHY : INTERNAL MACHINE ENVIRONMENT : Forced air circulation : Supplying power to charger)

Patent 5138376: Image forming apparatus including control system provided with a master control unit and a plurality of subsidiary control units
(ELECTROPHOTOGRAPHY : DIAGNOSTICS : With diverse image formation)

Patent 5138377: Internal expert system to aid in servicing
(ELECTROPHOTOGRAPHY : DIAGNOSTICS : Service mode : Electrostatic)

Patent 5138378: Electrostatic target recalculation in a xerographic imaging apparatus
(ELECTROPHOTOGRAPHY : CONTROL OF ELECTROPHOTOGRAPHY PROCESS : Color balance : Of overlapped toner images : By concentration detector)

Patent 5138379: Image forming apparatus having temperature and humidity detecting means
(ELECTROPHOTOGRAPHY : CONTROL OF ELECTROPHOTOGRAPHY PROCESS : Having temperature or humidity detection : Single detector for plural toners)

Patent 5138380: Electrostatic recording apparatus, method of controlling the apparatus, and method of evaluating life of photoconductive member of
(ELECTROPHOTOGRAPHY : DIAGNOSTICS : Consumable : Photoconductive member : Misstrip of copy)

Patent 5138381: Image forming apparatus equipped with separating pawl with specified surface roughness
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Photoconductive member : To produce outline image)

Patent 5138382: Apparatus and method for creating a developer housing seal via a curtain of carrier beads
(ELECTROPHOTOGRAPHY : INTERNAL MACHINE ENVIRONMENT : Particle or contaminant control : Seal : Developer seal : Magnetic : Optical detector)

Patent 5138383: Apparatus for using superconductivity
(ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS : MAGNETS AND ELECTROMAGNETS : Superconductive type : With coil structure)

Patent 5138384: Electrophotographic copying machine having editorial function
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Exposure : Having image editing : Selectable area : Toner cartridge)

Patent 5138385: Developing device with electrically floating developing roller
(ELECTROPHOTOGRAPHY : MACHINE OPERATION : Having power supply : Having mode change)

Patent 5138386: Developing apparatus
(ELECTROPHOTOGRAPHY : CONTROL OF ELECTROPHOTOGRAPHY PROCESS : Control of developing : Concentration control : Detection of toner in developing unit : Concentration detection :)

Patent 5138387: Charge injection image forming apparatus using conductive and insulative tone
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Simultaneous exposure and development : Development and cleaning)

Patent 5138388: Method and apparatus for removing unexposed marking particles with magnetic carrier particles
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : ELECTRIC MARKING APPARATUS OR PROCESSES : Electrostatic : Photo scanning : Including driving circuitry)

Patent 5138389: Imaging apparatus utilizing intermediate transfer member
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Transfer : Color : By intermediate transfer member : Having electrode)

Patent 5138390: Cleaning sheet for fixating rotational member and image forming apparatus having fixating rotational member
(ELECTROPHOTOGRAPHY : HAVING PARTICULAR STRUCTURE : Modular or displaceable : Process cartridge unit : Developer seal)

Patent 5138391: Image fixing means including a sheet separating device which prevents wear of the heating roller
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Fixing (e.g., fusing) : Cleaning of fixing member : Parting agent applicator)

Patent 5138392: Image forming apparatus with a fixing device capable of fixing a transparent member
(ELECTROPHOTOGRAPHY : CONTROL OF ELECTROPHOTOGRAPHY PROCESS : Responsive to copy media characteristic : Single detector for plural toners)

Patent 5138393: Magnetic core
(ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS : MAGNETS AND ELECTROMAGNETS : Magnet structure or material : Core structure : Lifting or attracting type (e.g., for lifting pigiron or pulling hairpins))

Patent 5138394: Cleaning apparatus with means to effectively use toner storage space
(ELECTROPHOTOGRAPHY : CLEANING OF IMAGING SURFACE : Having handling of removed material : Having storage : Lamination)

Patent 5138395: Internally lubricated cleaning blade
(ELECTROPHOTOGRAPHY : CLEANING OF IMAGING SURFACE : Including lubricant : Having treatment of image)

Patent 5138396: Device for preventing paper from falling in a transfer device for electrophotographic recorders
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Transfer : Electrostatic : Having copy medium guide : Having belt transporting copy)

Patent 5138397: Park position control apparatus for a sheet transport system
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Transfer : Color : Registration : Having electrode)

Patent 5138398: Support structure holding a plurality of developing devices used in a multi-color image forming apparatus
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Development : Plural diverse (e.g., color) : Plural applicators single position : Lock or clamp)

Patent 5138399: Sheet transport system with improved registration
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Transfer : Color : Copy medium carrier (e.g., drum or belt) : Having gripper : Details)

Patent 5138400: Image forming apparatus
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : Focus or magnification control : Automatic or semiautomatic focusing when varying image size : Reflector between original and photo-sensitive paper)

Patent 5138401: Electronic devices utilizing superconducting materials
(SUPERCONDUCTOR TECHNOLOGY: APPARATUS, MATERIAL, PROCESS : HIGH TEMPERATURE (TC GREATER THAN 30 K) DEVICES, SYSTEMS, APPARATUS, COM- PONENTS, OR STOCK, OR PROCESSES OF USING : Semiconductor thin film device or thin film electric solid-state device or system (i.e., active or passive) : Having optical waveguide)

Patent 5138402: Semiconductor electron emitting device
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : SCHOTTKY BARRIER : Temperature)

Patent 5138403: High temperature Schottky barrier bypass diodes
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : SCHOTTKY BARRIER : Specified materials : Guard ring)

Patent 5138404: Semiconductor device for passing current between a GaAs layer and an InGaAlP layer
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : THIN ACTIVE PHYSICAL LAYER WHICH IS (1) AN ACTIVE POTENTIAL WELL LAYER THIN ENOUGH TO ESTABLISH DISCRETE QUANTUM ENERGY LEVELS OR (2) AN ACTIVE BARRIER LAYER THIN ENOUGH TO PERMIT QUANTUM MECHANICAL TUNNELING OR (3) AN ACTIVE LAYER THIN ENOUGH TO PERMIT CARRIER TRANSMISSION WITH SUBSTANTIALLY NO SCATTERING (E.G., SUPERLATTICE QUANTUM WELL, OR BALLISTIC TRANSPORT DEVICE) : Heterojunction : Incoherent light emitter :)

Patent 5138405: Quasi one-dimensional electron gas field effect transistor
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : THIN ACTIVE PHYSICAL LAYER WHICH IS (1) AN ACTIVE POTENTIAL WELL LAYER THIN ENOUGH TO ESTABLISH DISCRETE QUANTUM ENERGY LEVELS OR (2) AN ACTIVE BARRIER LAYER THIN ENOUGH TO PERMIT QUANTUM MECHANICAL TUNNELING OR (3) AN ACTIVE LAYER THIN ENOUGH TO PERMIT CARRIER TRANSMISSION WITH SUBSTANTIALLY NO SCATTERING (E.G., SUPERLATTICE QUANTUM WELL, OR BALLISTIC TRANSPORT DEVICE) : Heterojunction : Quantum well : Superlattice : With particular barrier dimension :)

Patent 5138406: Ion implantation masking method and devices
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Junction field effect transistor (unipolar transistor) : Physical deformation (e.g., strain sensor, acoustic wave detector))

Patent 5138407: Transistor made of 3-5 group semiconductor materials on a silicon substrate
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : REGENERATIVE TYPE SWITCHING DEVICE (E.G., SCR, COMFET, THYRISTOR) : Combined with field effect transistor : J-FET (junction field effect transistor) : Recombination centers or deep level dopants)

Patent 5138408: Resonant tunneling hot carrier transistor
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : REGENERATIVE TYPE SWITCHING DEVICE (E.G., SCR, COMFET, THYRISTOR) : Combined with field effect transistor : J-FET (junction field effect transistor) : Recombination centers or deep level dopants)

Patent 5138409: High voltage semiconductor device having silicon-on-insulator structure with reduced on-resistance
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Having insulated electrode (e.g., MOSFET, MOS diode) : Short channel insulated gate field effect transistor : Multiple insulator layers (e.g., MNOS structure))

Patent 5138410: Nonvolatile semiconductor memory device having tunnel insulating film structure
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Having insulated electrode (e.g., MOSFET, MOS diode) : Variable threshold (e.g., floating gate memory device) : Inversion layer capacitor)

Patent 5138411: Anodized polysilicon layer lower capacitor plate of a dram to increase capacitance
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Having insulated electrode (e.g., MOSFET, MOS diode) : Insulated gate capacitor or insulated gate transistor combined with capacitor (e.g., dynamic memory cell) : Imaging array)

Patent 5138412: Dynamic ram, having an improved large capacitance
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Having insulated electrode (e.g., MOSFET, MOS diode) : Insulated gate capacitor or insulated gate transistor combined with capacitor (e.g., dynamic memory cell) : Imaging array)

Patent 5138413: Piso electrostatic discharge protection device
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Having insulated electrode (e.g., MOSFET, MOS diode) : With overvoltage protective means : Substrate is single crystal insulator (e.g., sapphire or spinel))

Patent 5138414: Pressure sensitive semiconductor device with cantilevers
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : RESPONSIVE TO NON-ELECTRICAL SIGNAL (E.G., CHEMICAL, STRESS, LIGHT, OR MAGNETIC FIELD SENSORS) : Physical deformation : Strain sensors : Polysilicon laminated with silicide)

Patent 5138415: Photo-semiconductor device with a zero-cross function
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : REGENERATIVE TYPE SWITCHING DEVICE (E.G., SCR, COMFET, THYRISTOR) : With light activation : With highly-doped breakdown diode trigger)

Patent 5138416: Multi-color photosensitive element with heterojunctions
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : RESPONSIVE TO NON-ELECTRICAL SIGNAL (E.G., CHEMICAL, STRESS, LIGHT, OR MAGNETIC FIELD SENSORS) : Electromagnetic or particle radiation : Light : With different sensor portions responsive to different wavelengths (e.g., color imager) : Antireflection coating)

Patent 5138417: High-frequency semiconductor device
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : INTEGRATED CIRCUIT STRUCTURE WITH ELECTRICALLY ISOLATED COMPONENTS : With multiple separately connected emitter, collector, or base regions in same transistor structure : With multiple collectors or emitters)

Patent 5138418: Transistor structure for testing emitter-base junction
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : TEST OR CALIBRATION STRUCTURE : In bipolar transistor structure)

Patent 5138419: Wafer scale integration device with dummy chips and relay pads
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : HOUSING OR PACKAGE : For plural devices : With gas coolant)

Patent 5138420: Semiconductor device having first and second type field effect transistors separated by a barrier
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Having insulated electrode (e.g., MOSFET, MOS diode) : Insulated gate field effect transistor in integrated circuit : Complementary insulated gate field effect transistors : Complementary transistors in wells of opposite conductivity types more heavily doped than the substrate region in which they are formed, e.g., twin wells : For operation as bipolar or punchthrough element)

Patent 5138421: Semiconductor substrate and method of producing the same, and semiconductor device
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : INTEGRATED CIRCUIT STRUCTURE WITH ELECTRICALLY ISOLATED COMPONENTS : Including dielectric isolation means : With bipolar transistor structure : With complementary (npn and pnp) bipolar transistor structures)

Patent 5138422: Semiconductor device which includes multiple isolated semiconductor segments on one chip
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Having insulated electrode (e.g., MOSFET, MOS diode) : Insulated gate field effect transistor in integrated circuit : With specified physical layout (e.g., ring gate, source/drain regions shared between plural FETs, plural sections connected in parallel to form power MOSFET) : With heavily doped channel stop portion)

Patent 5138423: Programmable device and a method of fabricating the same
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : COMBINED WITH ELECTRICAL CONTACT OR LEAD : Of specified material other than unalloyed aluminum : Layered : Multiple metal levels on semiconductor, separated by insulating layer (e.g., multiple level metallization for integrated circuit) : Silicide of refractory or platinum group metal)

Patent 5138424: Positive working polyamic acid/imide photoresist compositions and their use as dielectrics
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : COMBINED WITH ELECTRICAL CONTACT OR LEAD : Of specified material other than unalloyed aluminum : Layered : Multiple metal levels on semiconductor, separated by insulating layer (e.g., multiple level metallization for integrated circuit) : Including organic insulating material between metal levels : With polycrystalline connecting region (e.g., polysilicon base contact))

Patent 5138425: Semiconductor integrated circuit device with nitride barrier layer ion implanted with resistivity decreasing elements
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : COMBINED WITH ELECTRICAL CONTACT OR LEAD : Of specified material other than unalloyed aluminum : Layered : Multiple metal levels on semiconductor, separated by insulating layer (e.g., multiple level metallization for integrated circuit) : Silicide of refractory or platinum group metal)

Patent 5138426: Ceramic joined body
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : HOUSING OR PACKAGE : Insulating material : Multiple contact layers separated from each other by insulator means and forming part of a package or housing (e.g., plural ceramic layer package))

Patent 5138427: Semiconductor device having a particular structure allowing for voltage stress test application
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : TEST OR CALIBRATION STRUCTURE : In bipolar transistor structure)

Patent 5138428: Connection of a semiconductor component to a metal carrier
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : COMBINED WITH ELECTRICAL CONTACT OR LEAD : Ball or nail head type contact, lead, or bond : Cross-over arrangement, component or structure)

Patent 5138429: Precisely aligned lead frame using registration traces and pads
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : COMBINED WITH ELECTRICAL CONTACT OR LEAD : Wire contact, lead, or bond : With adhesive means)

Patent 5138430: High performance versatile thermally enhanced IC chip mounting
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : HOUSING OR PACKAGE : With provision for cooling the housing or its contents : With raised portion of base for mounting semiconductor chip)

Patent 5138431: Lead and socket structures with reduced self-inductance
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : LEAD FRAME : Of specified material other than copper (e.g., Kovar (T.M.)) : Of insulating material)

Patent 5138432: Selective deposition of tungsten on TiSi.sub.2
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : COMBINED WITH ELECTRICAL CONTACT OR LEAD : Of specified material other than unalloyed aluminum : Refractory or platinum group metal or alloy or silicide thereof : Molybdenum, tungsten, or titanium or their silicides : Alloy containing molybdenum, titanium, or tungsten)

Patent 5138433: Multi-chip package type semiconductor device
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : HOUSING OR PACKAGE : For plural devices : With gas coolant)

Patent 5138434: Packaging for semiconductor logic devices
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : HOUSING OR PACKAGE : With contact or lead : With particular lead geometry : Combined with channel stop region in semiconductor)

Patent 5138435: CRT-matrix display with indexing and stair step vertical deflection waveform.
(TELEVISION : MODULAR IMAGE DISPLAY SYSTEM : With beam energy determining color)

Patent 5138436: Interconnect package having means for waveguide transmission of RF signals
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : HOUSING OR PACKAGE : For high frequency (e.g., microwave) device : With electrical isolation means)

Patent 5138437: Semiconductor integrated circuit device in which integrated circuit units having different functions are stacked in three dimensional manner
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : HOUSING OR PACKAGE : Multiple housings : Stacked arrangement : Combined with channel stop region in semiconductor)

Patent 5138438: Lead connections means for stacked tab packaged IC chips
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : HOUSING OR PACKAGE : Multiple housings : Stacked arrangement : Combined with channel stop region in semiconductor)

Patent 5138439: Semiconductor device
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : HOUSING OR PACKAGE : Insulating material : Of high thermal conductivity ceramic (e.g., BeO) : Housing entirely of metal except for feedthrough structure)

Patent 5138440: Method and apparatus for communicating a plurality of asynchronous signals over a digital communication path
(TELEVISION : FORMAT : Including pulse modulation of video signal (e.g., pulse width, PAM) : Pulse code modulation : Field or frame sequential to simultaneous)

Patent 5138441: Beam-index-type color display apparatus
(TELEVISION : VIDEO DISPLAY : Projection device : With alignment, registration or focus : Including processor interface (e.g., CPU))

Patent 5138442: Image registration system for multiple picture tube projection television
(TELEVISION : VIDEO DISPLAY : Projection device : With alignment, registration or focus : Including processor interface (e.g., CPU))

Patent 5138443: Image processing apparatus having means for synthesizing binarized image data
(FACSIMILE AND STATIC PRESENTATION PROCESSING : NATURAL COLOR FACSIMILE : Color correction : Color masking)

Patent 5138444: Image pickup system capable of producing correct image signals of an object zone
(TELEVISION : STEREOSCOPIC : Picture signal generator : Single camera from multiple positions : More than two cameras)

Patent 5138445: Motion vector detector circuit
(TELEVISION : CAMERA, SYSTEM AND DETAIL : Moving reflector)

Patent 5138446: Method and device for processing of pictures with improved movement estimation
(TELEVISION : IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION : Motion vector generation : Diode)

Patent 5138447: Method and apparatus for communicating compressed digital video signals using multiple processors
(PULSE OR DIGITAL COMMUNICATIONS : BANDWIDTH REDUCTION OR EXPANSION : Television or motion video signal : Predictive : Separate coders)

Patent 5138448: Device for conversion of frame frequency and number of lines for a high-definition television receiver
(TELEVISION : FORMAT CONVERSION : Involving both line number and field rate conversion (e.g., PAL to NTSC) : Individual processing of different parts of image frequency band (e.g., sum and difference, high band/low band))

Patent 5138449: Enhanced definition NTSC compatible television system
(TELEVISION : FORMAT CONVERSION : Involving both line number and field rate conversion (e.g., PAL to NTSC) : Individual processing of different parts of image frequency band (e.g., sum and difference, high band/low band))

Patent 5138450: High density character and/or figure displaying apparatus
(TELEVISION : BASIC RECEIVER WITH ADDITIONAL FUNCTION : For display of additional information : Simultaneously and on same screen (e.g., multiscreen) : Color processing)

Patent 5138451: Television receiver
(TELEVISION : SYNCHRONIZATION : Sync generation : With counter or frequency divider : Color television)

Patent 5138452: Method and apparatus for transforming video images using up-sampled digital video signals
(TELEVISION : IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION : Special effects : Geometric transformation : Size change : Compression)

Patent 5138453: Ghost cancelling circuit having filter controlled by variable limiter
(TELEVISION : IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION : Noise or undesired signal reduction : Ghost elimination (e.g., multipath) : Complementary system (e.g., preemphasis - deemphasis))

Patent 5138454: Megapixel video previewer framestore and display
(TELEVISION : IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION : Special effects : Geometric transformation : Size change : Compression)

Patent 5138455: Video signal processing circuit for compressed picture insertion function of television receiver
(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 5138456: Processes for transmitting video signals, video cameras for such transmission and applications of such cameras
(TELEVISION : STUDIO EQUIPMENT : Digital)

Patent 5138457: Television receiver having a system for reducing interference of a first audio signal carrier to a second audio signal carrier
(TELEVISION : RECEIVER CIRCUITRY : Sound circuit : Tuning voltage)

Patent 5138458: Electronic camera apparatus capable of providing wide dynamic range image signal
(TELEVISION : CAMERA, SYSTEM AND DETAIL : Combined image signal generator and general image signal processing : Exposure control)

Patent 5138459: Electronic still video camera with direct personal computer (PC) compatible digital format output
(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 : Processing or camera details :)

Patent 5138460: Apparatus for forming composite images
(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 5138461: Implosion-protected cathode-ray tube
(TELEVISION : VIDEO DISPLAY : Cathode-ray tube : Protective device : Implosion protection : Tensioned band : Secondary emission sensor)

Patent 5138462: TV-set having screen covering means
(TELEVISION : VIDEO DISPLAY : Cabinet or chassis : With optical element)

Patent 5138463: Double decker housing and paper handling device for facsimile apparatus
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Recording apparatus : Scanning)

Patent 5138464: Instant program recording system of VCR
(TELEVISION SIGNAL PROCESSING FOR DYNAMIC RECORDING OR REPRODUCING : PROCESSING OF TELEVISION SIGNAL FOR DYNAMIC RECORDING OR REPRODUCING : Including programmable apparatus : Disc)

Patent 5138465: Method and apparatus for highlighting nested information areas for selective editing
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Specific signal processing circuitry : Image processing : Image portion selection : Variable threshold determined by image or other condition (e.g., adaptive thresholding))

Patent 5138466: Facsimile apparatus
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Specific signal processing circuitry : Facsimile control unit : Picture signal thresholding)

Patent 5138467: Photoelectric conversion device
(FACSIMILE AND STATIC PRESENTATION PROCESSING : FACSIMILE : Picture signal generator : Scanning : Solid state : Including a polygon reflector)

Patent 5138468: Keyless holographic lock
(OPTICAL: SYSTEMS AND ELEMENTS : HOLOGRAPHIC SYSTEM OR ELEMENT : Authentication :)

Patent 5138469: Preparation of photosensitive material to withstand a lamination process
(OPTICAL: SYSTEMS AND ELEMENTS : HOLOGRAPHIC SYSTEM OR ELEMENT : Having particular recording medium :)

Patent 5138470: Guard holograms
(OPTICAL: SYSTEMS AND ELEMENTS : HOLOGRAPHIC SYSTEM OR ELEMENT : Head up display : Spatial, phase or amplitude modulation)

Patent 5138471: Holocomposer
(OPTICAL: SYSTEMS AND ELEMENTS : HOLOGRAPHIC SYSTEM OR ELEMENT : Having defined page composer : Lens)

Patent 5138472: Display having light scattering centers
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : PARTICULAR STRUCTURE : Having significant detail of cell structure only : Nonchiral additive in the liquid crystal material : Nonspacer particles significantly smaller than liquid crystal thickness (e.g., scattering centers, ferromagnetic particles, etc.) : With detail of terminals to external circuit)

Patent 5138473: Ferroelectric liquid crystal screen with localized zigzag defects and opacified electrodes in the non-switchable area of the screen and
(LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS : PARTICULAR STRUCTURE : Having significant detail of cell structure only : Filter : Opaque mask or black mask : Conductive mask : With particular insulating layer)

Patent 5138474: Liquid crystal display with compensator having two films with positive and negative intrinsic birefringence, respectively
(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) : Multiple compensators : Including at least one with negative intrinsic birefringence : With particular insulating layer)

Patent 5138475: DC-coupled optical data link utilizing differential transmission
(OPTICAL COMMUNICATIONS : DUPLEX : Determination of communication parameter)

Patent 5138476: Polarization deversity heterodyne receiver of a baseband combining type in which I.E. signals are adjusted by negative feedback from a device
(OPTICAL COMMUNICATIONS : RECEIVER : Heterodyne : Including feedback)

Patent 5138477: Light deflecting apparatus
(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) : Particular mount or driver for element : Bearing or shaft for rotary driver :)

Patent 5138478: Optical beam scanning apparatus
(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) : Utilizing plural light beams : Having a common axis of rotation)

Patent 5138479: Light beam scanning apparatus and method of detecting a variation of a scanning speed of a light beam
(OPTICAL: SYSTEMS AND ELEMENTS : DEFLECTION USING A MOVING ELEMENT OR MEDIUM (OFFSETTING OR CHANGING AT LEAST A PORTION OF THE BEAM) : Using a periodically moving element (periodic change of optically reflecting, refracting or diffracting element) : Including reflective type moving element : Having multifaceted rotating element : Single plane mirror element)

Patent 5138480: Traveling wave 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 : With particular direction of the field in relation to the medium, beam direction or polarization : Semiconductor)

Patent 5138481: Electrochromic device with color gradient and method of making the device
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL MODULATOR : Light wave temporal modulation (e.g., frequency, amplitude, etc.) : Changing bulk optical parameter : Electro-optic : Electrochromic : Reflection-type (e.g., display device) : Particular counter electrode :)

Patent 5138482: Light modular and recording device employing same
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL MODULATOR : Light wave directional modulation (e.g., deflection or scanning is representative of the modulating signal) : Acousto-optic : Using single polarization)

Patent 5138483: Low-noise active fiber optical amplifier with pumping power reflector
(OPTICAL: SYSTEMS AND ELEMENTS : OPTICAL AMPLIFIER : Optical fiber : Pumping : Interferometer or interference)

Patent 5138484: Mirror telescope
(OPTICAL: SYSTEMS AND ELEMENTS : HAVING SIGNIFICANT INFRARED OR ULTRAVIOLET PROPERTY : Beam combination or separation)

Patent 5138485: Optical filter for measurement of combustion gases and method of manufacturing
(OPTICAL: SYSTEMS AND ELEMENTS : HAVING SIGNIFICANT INFRARED OR ULTRAVIOLET PROPERTY : Multilayer filter or multilayer reflector : Infrared lens)

Patent 5138486: Inverted microscope with integrated ray paths
(OPTICAL: SYSTEMS AND ELEMENTS : COMPOUND LENS SYSTEM : With image recorder : Having metal layer)

Patent 5138487: Door viewer
(OPTICAL: SYSTEMS AND ELEMENTS : COMPOUND LENS SYSTEM : Telescope : With prism or U-shaped optical path : Equatorial mount)

Patent 5138488: Retroreflective material with improved angularity
(OPTICAL: SYSTEMS AND ELEMENTS : SIGNAL REFLECTOR : 3-Corner retroreflective (i.e., cube corner, trihedral, or triple reflector type) : Vibration)

Patent 5138489: Spatially incoherent holographic correlator
(OPTICAL: SYSTEMS AND ELEMENTS : DIFFRACTION : Using Fourier transform spatial filtering : For correlation : Including a threaded member)

Patent 5138490: Arrangement for changing the geometrical form of a light beam
(OPTICAL: SYSTEMS AND ELEMENTS : DIFFRACTION : From grating : Including particular grating characteristic : Nonplanar grating substrate (e.g., concave) : With single transparent coating between spheres and atmosphere)

Patent 5138491: Beam-combining laser beam source device
(OPTICAL: SYSTEMS AND ELEMENTS : SINGLE CHANNEL SIMULTANEOUSLY TO OR FROM PLURAL CHANNELS (E.G., LIGHT DIVIDING, COMBINING, OR PLURAL IMAGE FORMING, ETC.) : By surface composed of lenticular elements : Plural lenticular plates : Serially disposed along optic axis : Translucent or other semitransmitting panel selectively positioned in front of mirror)

Patent 5138492: Rear-focus type zoom lens suppressing fluctuation of aberration
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With variable magnification (e.g., zoom type) : With mechanical compensation : Other than first group moves for focusing (internal focus type) : Cylindrical lenslets)

Patent 5138493: Zoom lens system
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With variable magnification (e.g., zoom type) : With mechanical compensation : Three groups : + - - + Arrangement)

Patent 5138494: Variable focal length lens
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : Fluid : With variable magnification : In a variable media (e.g., gas, elastomer, etc.))

Patent 5138495: Diffractive optical lens
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With multipart element : Echelon (e.g., Fresnel lens, etc.) : Between lens components)

Patent 5138496: Adjusting mechanism for a lens
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With support : Lens mounts : Adjustable : With third component biconvex)

Patent 5138497: High speed focusing lens assembly
(OPTICAL: SYSTEMS AND ELEMENTS : LENS : With support : Lens mounts : Adjustable : With axial adjustment (e.g., adjustable focus, etc.) : With multiple element component)

Patent 5138498: Recording and reproduction method for a plurality of sound signals inputted simultaneously
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORDING FOR CHANGING DURATION, FREQUENCY OR REDUNDANT CONTENT OF AN ANALOG SIGNAL : Motion picture film)

Patent 5138499: Method of overwriting recorded data on magnetic tape in apparatus employing positioning signals derived from axially displaced heads
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORD EDITING : Motion picture film)

Patent 5138500: Magnetic tape recording/reproducing device for recording digital acoustic and video signals
(TELEVISION SIGNAL PROCESSING FOR DYNAMIC RECORDING OR REPRODUCING : PROCESSING OF TELEVISION SIGNAL FOR DYNAMIC RECORDING OR REPRODUCING : Having another signal : Audio signal : Digital audio signal : Plurality of audio channels)

Patent 5138501: Magnetic recorder/reproducer for recording digital signal on a plurality of tracks of magnetic recording media and reproducing the same
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : CONVERTING AN ANALOG SIGNAL TO DIGITAL FORM FOR RECORDING; REPRODUCING AND RECONVERTING : Frequency)

Patent 5138502: Tape counter for a rotary head type video signal recording and reproducing apparatus and tape counting method therefor
(TELEVISION SIGNAL PROCESSING FOR DYNAMIC RECORDING OR REPRODUCING : PROCESSING OF TELEVISION SIGNAL FOR DYNAMIC RECORDING OR REPRODUCING : Drop-out correction : Color signal in nonpictorial form)

Patent 5138503: Field or frame recording method and apparatus for an electronic still camera
(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 5138504: Tape transport control apparatus for switching from high speed reel drive to low speed capstan drive without stopping the tape
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : AUTOMATIC CONTROL OF A RECORDER MECHANISM : Controlling the record : Speed : Linear carrier : Plural speed transport : Automatic change between fixed speeds :)

Patent 5138505: Tracking apparatus for a magnetic recording and playback apparatus with independent control of audio head with respect to video head
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : AUTOMATIC CONTROL OF A RECORDER MECHANISM : Controlling the head : Track centering : Elongated web carrier (i.e., tape) : Transverse scan path : Having head deflection drive (e.g., piezoelectric bimorph) : Plural pilot signals along single transverse path)

Patent 5138506: Disk drive lubricant reservoir
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORD TRANSPORT WITH HEAD STATIONARY DURING TRANSDUCING : Disk record : Environmental control (e.g., air filter, temperature control) : Plural disks : Container mounting details)

Patent 5138507: Disk head assembly flexure with improved motion stability
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : HEAD MOUNTING : Disk record : Gimbal detail : Assembly feature)

Patent 5138508: Magnetic head core
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : HEAD : Gap structure details : Plural gaps : Mounting detail)

Patent 5138509: Negative pressure control member for stabilizing magnetic disk contact with a magnetic head
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : HEAD : Head accessory : Pressure element : Disc record : Element in tape container)

Patent 5138510: Flap of video tape cassette and its installing structure
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORD MEDIUM : In container : Pressure element)

Patent 5138511: Magnetic recording disk in which the level of the surface of the data tracks, and servo tracks is higher than that of the guardbands
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : RECORD MEDIUM : Disk : For disk)

Patent 5138512: System for checking the opening and closing of a cassette lid
(DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL : MISCELLANEOUS : Drum)

Patent 5138513: Arc preventing electrostatic power supply
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : SAFETY AND PROTECTION OF SYSTEMS AND DEVICES : Arc suppression at switching point (i.e., includes solid-state switch) :)

Patent 5138514: Electrically operated control device and system for an appliance and methods of making the same
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : SAFETY AND PROTECTION OF SYSTEMS AND DEVICES : Arc suppression at switching point (i.e., includes solid-state switch) :)

Patent 5138515: Pulse-controlled gate circuit with protection against short-circuit
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : SAFETY AND PROTECTION OF SYSTEMS AND DEVICES : Voltage regulator protective circuits : Shunt connected capacitors)

Patent 5138516: Fault sensing and driving system for output driver device
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : SAFETY AND PROTECTION OF SYSTEMS AND DEVICES : Voltage regulator protective circuits : Shunt connected capacitors)

Patent 5138517: Polymer housed electrical assemblies using modular construction
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : SAFETY AND PROTECTION OF SYSTEMS AND DEVICES : High voltage dissipation (e.g., lightning arrester) : Pneumatically operated circuit breaker)

Patent 5138518: Method for manufacturing a selective call receiver
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : ELECTRIC CHARGING OF OBJECTS OR MATERIALS : Specific conduction means or dissipator)

Patent 5138519: Selectively variable capacitor
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : ELECTROSTATIC CAPACITORS : Fixed capacitor : Details of electrical connection means (e.g., terminal or lead) : Material)

Patent 5138520: Methods and apparatus for material deposition
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : ELECTROSTATIC CAPACITORS : Fixed capacitor : Solid dielectric : Lead extends around at least a portion of capacitor)

Patent 5138521: Electronic component assembly with direct mounting for proper and effective cooling
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : With cooling means : Fluid : With cooling fins : Change of physical state)

Patent 5138522: Cabinet for housing electrical components
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : With cooling means : Fluid : Air : With air circulating means : Circular)

Patent 5138523: Digitizer tablet having cooling apparatus with base and integrated heat sink
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : Computer related support : With cooling means : Disk drive support)

Patent 5138524: Apparatus for securing electronic device packages to heat sinks
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : With cooling means : Thermal conduction : With cooling fins)

Patent 5138525: Multi-purpose strut for digital computer chassis
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : Computer related support : CRT support)

Patent 5138526: Interface slot and speaker seat structure for a mother board
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : Computer related support : CRT support)

Patent 5138527: Equipment control panel structure
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : Printed circuit board : With housing or chassis : With lock or interlock : Welded connection)

Patent 5138528: Electrical packaging system and components therefor
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : Printed circuit board : Connection of components to board : With lock or interlock)

Patent 5138529: Supportive ground clip for computer system board
(ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES : HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS : For electronic systems and devices : Shielding : Tube mounting)

Patent 5138530: Shadow control system
(ILLUMINATION : PHOTOGRAPHIC LIGHTING : Including specific light modifier : Selective or adjustable : Indexing (i.e., dynamic))

Patent 5138531: Headlamp for power vehicle
(ILLUMINATION : SUPPORTED BY VEHICLE STRUCTURE (E.G., ESPECIALLY ADAPTED FOR VEHICLE) : Including headlamp beam measuring or indicating (e.g., headlamp beam leveling, aiming, inclination detecting) : Plumb or level having liquid-type bubble : With pin and slot motion transmission means)

Patent 5138532: Motor vehicle headlight including device for measuring deviation and adjusting direction of orientation of headlight beam
(ILLUMINATION : SUPPORTED BY VEHICLE STRUCTURE (E.G., ESPECIALLY ADAPTED FOR VEHICLE) : Including headlamp beam measuring or indicating (e.g., headlamp beam leveling, aiming, inclination detecting) : Plumb or level having liquid-type bubble : Including indicia mark (e.g., calibrated rod) : Through link and lever transmission means)

Patent 5138533: Device for testing headlight orientation of a headlight of a motor vehicle
(ILLUMINATION : SUPPORTED BY VEHICLE STRUCTURE (E.G., ESPECIALLY ADAPTED FOR VEHICLE) : Including headlamp beam measuring or indicating (e.g., headlamp beam leveling, aiming, inclination detecting) : Plumb or level having liquid-type bubble : With pin and slot motion transmission means)

Patent 5138534: Solar power operated, vehicle night illuminator circuit
(ILLUMINATION : SUPPORTED BY VEHICLE STRUCTURE (E.G., ESPECIALLY ADAPTED FOR VEHICLE) : Condition responsive (e.g., position) : Including indicia mark (e.g., calibrated rod))

Patent 5138535: Infant toy having impact-responsive light generating means
(ILLUMINATION : WITH CANE, BATON, UMBRELLA OR CLUB : Notepad)

Patent 5138537: Variable light beam flashlight
(ILLUMINATION : SELF POWERED LAMP : With movable focusing element : With a protective cage)

Patent 5138538: Self-extinguishing flashlight
(ILLUMINATION : SELF POWERED LAMP : Cylindrical flashlight casing : With switch : Tube structure)

Patent 5138539: Fluorescent lamp device
(ILLUMINATION : ELONGATED SOURCE LIGHT UNIT OR SUPPORT : With means to accommodate additional circuit element : With switch)

Patent 5138540: Variable light distribution type headlamp
(ILLUMINATION : LIGHT SOURCE (OR SUPPORT THEREFOR) AND MODIFIER : Plural serial lens elements or components : Including circuit arrangement)

Patent 5138541: Lamp with ventilated housing
(ILLUMINATION : LIGHT MODIFIER : Reflector : With ventilating or cooling : Curved main surface)

Patent 5138542: Headlamp for power vehicle
(ILLUMINATION : SUPPORTS : Adjustable light support : Having plural diverse motions : Plural headlight supports concurrently operated : Including cloth covering)

Patent 5138543: Output voltage estimating circuit for a power converter having galvanic isolation between input and output circuits
(ELECTRIC POWER CONVERSION SYSTEMS : CURRENT CONVERSION : Including D.C.-A.C.-D.C. converter : Having transistorized inverter : Single-ended, separately-driven type : With automatic control of the magnitude of output voltage or current : For forward-type converter : Having feedback winding inductively coupled to inverter inductive device (e.g., tertiary winding, etc.) :)

Patent 5138544: Harmonically modified twelve-pole inverter
(ELECTRIC POWER CONVERSION SYSTEMS : CURRENT CONVERSION : With means to introduce or eliminate frequency components : In inverter systems : By step-wave, amplitude summation technique : Including notching)

Patent 5138545: Hybrid high voltage transformer
(ELECTRIC POWER CONVERSION SYSTEMS : CURRENT CONVERSION : Having plural converters for single conversion : Plural rectifiers : In series (e.g., series SCR's, bridge circuits, etc.) : Bridge type)

Patent 5138546: Sintered transformer core of MnZn-ferrite and a transformer comprising such a core
(ELECTRIC POWER CONVERSION SYSTEMS : CURRENT CONVERSION : Using semiconductor-type converter : In transistor inverter systems : Thyristor)

Patent 5138547: Dual input power supply
(ELECTRIC POWER CONVERSION SYSTEMS : CURRENT CONVERSION : With means to connect the input to diverse power sources : 110/220 Volts A.C. in, constant 110 Volts D.C. out : Double ended (i.e., push-pull) type)

Patent 5138548: Method of assuring integrity of information being stored
(ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY : DATA PROCESSING SYSTEM ERROR OR FAULT HANDLING : Reliability and availability : Error detection or notification : Operator interface for diagnosing or testing)

Patent 5138549: Automated tax deposit processing system
(DATA PROCESSING: FINANCIAL, BUSINESS PRACTICE, MANAGEMENT, OR COST/PRICE DETERMINATION : AUTOMATED ELECTRICAL FINANCIAL OR BUSINESS PRACTICE OR MANAGEMENT ARRANGEMENT : Accounting : Tax preparation or submission : Staff scheduling or task assignment)

Patent 5138550: Device for monitoring the gait in particular of a horse and monitoring system to which it is applied
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Human or animal : Posture alarm : Specified device housing or attachment means)

Patent 5138551: Process for improving the accuracy and reproducibility of data measured in immunometric tests
(CHEMISTRY: MOLECULAR BIOLOGY AND MICROBIOLOGY : MEASURING OR TESTING PROCESS INVOLVING ENZYMES OR MICRO-ORGANISMS; COMPOSITION OR TEST STRIP THEREFORE; PROCESSES OF FORMING SUCH COMPOSITION OR TEST STRIP : Involving antigen-antibody binding, specific binding protein assay or specific ligand-receptor binding assay : Assay in which an enzyme present is a label : Bacteria or actinomycetales)

Patent 5138552: Data acquisition system using non-linear digitization intervals
(CODED DATA GENERATION OR CONVERSION : ANALOG TO OR FROM DIGITAL CONVERSION : Analog to digital conversion : Intermediate conversion to frequency or number of pulses : With rollover feature (i.e., antidoublestrike))

Patent 5138553: Method and apparatus for bone mineral measurement using a measurement region defined at a selected distance from a styloid bone tip
(SURGERY : DIAGNOSTIC TESTING : Detecting nuclear, electromagnetic, or ultrasonic radiation : Measuring force required to produce standard or measured eye flattening (applanation))

Patent 5138554: Suspension controller
(DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION : VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION : Vehicle subsystem or accessory control : Suspension control : Artificial intelligence (e.g., fuzzy logic) : Inner/outer loop)

Patent 5138555: Helmet mounted display adaptive predictive tracking
(DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION : VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION : Aeronautical vehicle : Flight condition indicating system : Spacecraft or satellite)

Patent 5138556: Malfunction detector for antiskid controller and speed sensor
(DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION : VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION : Indication or control of braking, acceleration, or deceleration : Antiskid, antilock, or brake slip control : Fail-safe system : Correction or modification)

Patent 5138557: Corner shape insertion method
(DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS : SPECIFIC APPLICATION, APPARATUS OR PROCESS : Product assembly or manufacturing : Particular manufactured product or operation : Machining : Having operator interface feature : Preset pattern : Tool/workpiece interference prevention)

Patent 5138558: Method of automatic conveyance of textile material in recipients
(DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS : SPECIFIC APPLICATION, APPARATUS OR PROCESS : Product assembly or manufacturing : Having particular work transport control between manufacturing stations : Mobile transport : Defect analysis or recognition)

Patent 5138559: System and method for measuring liquid mass quantity
(DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING : MEASUREMENT SYSTEM IN A SPECIFIC ENVIRONMENT : Mechanical measurement system : Fluid measurement (e.g., mass, pressure, viscosity) : Liquid level or volume determination : Torsional, shear, tensile, or compression)

Patent 5138560: Position indicating apparatus for crane ways, overhead conveyors, and the like
(REGISTERS : CODED RECORD SENSORS : Particular sensor structure : Optical : Strengthen or diminish field or flux)

Patent 5138561: Computer graphics plotter control
(FACSIMILE AND STATIC PRESENTATION PROCESSING : STATIC PRESENTATION PROCESSING (E.G., PROCESSING DATA FOR PRINTER, ETC.) : Plotter :)

Patent 5138562: Environmental protection system useful for the fire detection and suppression
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Flame : Posture alarm)

 

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