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Patent 5252807: Heated plate rapid thermal processor
(ELECTRIC HEATING : HEATING DEVICES : Combined with container, enclosure, or support for material to be heated : Muffle-type enclosure : Food conveying type (e.g., lunch box))
Patent 5252808: Method and apparatus for recovering petroleum residues from storage sites
(ELECTRIC HEATING : HEATING DEVICES : Combined with container, enclosure, or support for material to be heated : Crucible or furnace type (i.e., adapted to hold meltable material) : Melting pot : Automatically responsive to condition of heating area)
Patent 5252809: Panel heating element and process for its production
(ELECTRIC HEATING : HEATING DEVICES : With heating unit structure : With resistive-element attaching, securing or electrical insulation means : Comprising coating printed or deposited on core sheath or support means : Fusible link)
Patent 5252810: Part molded from thermoplastic material
(ELECTRIC HEATING : HEATING DEVICES : With heating unit structure : With resistive-element attaching, securing or electrical insulation means : Element embedded within or completely surrounded by core, sheath, or support means : Fusible link)
Patent 5252811: Device, system and method for increasing saving account participation and investment by small investors
(REGISTERS : SYSTEMS CONTROLLED BY DATA BEARING RECORDS : Banking systems : Price determination)
Patent 5252812: Program control system for portable data storage device
(REGISTERS : SYSTEMS CONTROLLED BY DATA BEARING RECORDS : Credit or identification card systems : Price determination)
Patent 5252813: Method and apparatus for automatic transaction having card receipt and/or transaction receipt slip issuing mechanism
(REGISTERS : SYSTEMS CONTROLLED BY DATA BEARING RECORDS : Credit or identification card systems : Price determination)
Patent 5252814: Multi-scanner checkout counter using digitizer panel to determine X-Y location of scanned items
(REGISTERS : SYSTEMS CONTROLLED BY DATA BEARING RECORDS : Mechanized store : Permitting access)
Patent 5252815: Compact smart card reader with unitary case and connector cover
(REGISTERS : CODED RECORD SENSORS : Particular sensor structure : Electrical contact : With tabular chart, scale, or graph)
Patent 5252816: Optical information reading apparatus
(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 5252817: Detector system for detecting the occurrence of welding using detector feedback
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Photocell controls its own optical systems : Controlling light source intensity : Self-luminous target)
Patent 5252818: Method and apparatus for improved scanner accuracy using a linear sensor array
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Photocell controlled circuit : Plural photosensitive image detecting element arrays : With comparison)
Patent 5252819: Scanning sensor processing apparatus and method for providing correction of output signal distortion
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Photocell controlled circuit : Plural photosensitive nonimage detecting elements : With comparison)
Patent 5252820: Photoelectric conversion circuit having a tuning circuit and changeover switcher
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Photocell controlled circuit : Special photocell or electron tube circuits : With specific relative positional geometry of photosensitive elements (e.g., an annular photosensitive element surrounding a coaxially mounted photosensitive element))
Patent 5252821: Toy stick mechanism with an optical system
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Optical or pre-photocell system : Controlled by article, person, or animal : Volume or level)
Patent 5252822: Contact wheel automated digitizer with visible sensing of marked reference points
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Optical or pre-photocell system : Light conductor : Electronic switch)
Patent 5252823: Combined light source and readout for fiber-optic sensors with reduced back-reflections
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Optical or pre-photocell system : Light conductor : With coupling enhancement means : Keyboard or other manual switch controlled)
Patent 5252824: Analog transmitter of position and direction of rotation having a signal amplitude varies on each change of state of sensors
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Optical or pre-photocell system : Light valve (e.g., iris diaphragm) : Actuated by dynamic external physical quantity : Shaft angle transducers : Bottles)
Patent 5252825: Absolute encoder using interpolation to obtain high resolution
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Optical or pre-photocell system : Light valve (e.g., iris diaphragm) : Actuated by dynamic external physical quantity : Shaft angle transducers : Incremental shaft readers; i.e., with means to generate increments of angular shaft rotation : Position indicating shaft encoders with means to generate a unique signal for each specific angular shaft position :)
Patent 5252826: Differential pressure utilizing opto-reflective sensor
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Optical or pre-photocell system : Light valve (e.g., iris diaphragm) : Actuated by dynamic external physical quantity : Pressure-responsive light valves : Incremental shaft readers; i.e., with means to generate increments of angular shaft rotation)
Patent 5252827: Method and apparatus for analysis of gases using plasma
(RADIANT ENERGY : IONIC SEPARATION OR ANALYSIS : Well testing apparatus and methods)
Patent 5252828: Mobile exhaust tracking system
(RADIANT ENERGY : INVISIBLE RADIANT ENERGY RESPONSIVE ELECTRIC SIGNALLING : Infrared responsive : With selection of plural discrete wavelengths or bands : With radiation source : Using sample absorption for chemical composition analysis : With gaseous sample :)
Patent 5252829: Method of determining urea in milk
(RADIANT ENERGY : INVISIBLE RADIANT ENERGY RESPONSIVE ELECTRIC SIGNALLING : Infrared responsive : With selection of plural discrete wavelengths or bands : With radiation source : With calibration steps in measurement process : Including Fourier transform infrared spectrometry)
Patent 5252830: Dedicated apparatus and method for emission mammography
(RADIANT ENERGY : INVISIBLE RADIANT ENERGY RESPONSIVE ELECTRIC SIGNALLING : With or including a luminophor : With radiant energy source : Body scanner or camera : Plural temperature sensitive signalling means)
Patent 5252831: Redirecting light from a fluorescent coating by a mirror layer
(RADIANT ENERGY : INVISIBLE RADIANT ENERGY RESPONSIVE ELECTRIC SIGNALLING : Semiconductor system : Scintillation system : X-ray or gamma-ray system)
Patent 5252832: Method of using thermal neutrons to evaluate gravel pack slurry
(RADIANT ENERGY : INVISIBLE RADIANT ENERGY RESPONSIVE ELECTRIC SIGNALLING : Neutron responsive means : With indicator)
Patent 5252833: Electron source for depletion mode electron emission apparatus
(RADIANT ENERGY : ION GENERATION : Field ionization type : With means to convey or guide the target)
Patent 5252834: Pulsed and gated multi-mode microspectrophotometry device and method
(RADIANT ENERGY : LUMINOPHOR IRRADIATION : With source support)
Patent 5252835: Machining oxide thin-films with an atomic force microscope: pattern and object formation on the nanometer scale
(RADIANT ENERGY : IRRADIATION OF OBJECTS OR MATERIAL : Luminescent device)
Patent 5252836: Reflective grain defect scanning
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : With circuit for evaluating a web, strand, strip, or sheet : Detection of diffuse light : With discrimination of discrete light diffusing region : With moving reticle in optical path)
Patent 5252837: Collision preventive drive device for optical system
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : With circuit for evaluating a web, strand, strip, or sheet : With indication of presence of material or feature : Determining range from detector)
Patent 5252838: Optical device provides a correct alignment for printing screen with reflective markers and orientation sensors
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : With circuit for evaluating a web, strand, strip, or sheet : Measuring position : With alignment detection : With translucent material)
Patent 5252839: Superluminescent light-emitting diode with reverse biased absorber
(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 5252840: Semiconductor device having differently doped diamond layers
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : SPECIFIED WIDE BAND GAP (1.5EV) SEMICONDUCTOR MATERIAL OTHER THAN GAASP OR GAALAS : Diamond or silicon carbide : In array having structure for use as imager or display, or with transparent electrode)
Patent 5252841: Heterojunction bipolar transistor structure having low base-collector capacitance, and method of fabricating the same
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : HETEROJUNCTION DEVICE : Bipolar transistor : Doping on side of heterojunction with lower carrier affinity (e.g., high electron mobility transistor (HEMT)))
Patent 5252842: Low-loss semiconductor device and backside etching method for manufacturing same
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Junction field effect transistor (unipolar transistor) : With Schottky gate : With devices vertically spaced in different layers of semiconductor material (e.g., "3-dimensional" integrated circuit))
Patent 5252843: Semiconductor device having overlapping conductor layers
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : FIELD EFFECT DEVICE : Junction field effect transistor (unipolar transistor) : With Schottky gate : Schottky gate in groove : With groove or overhang for alignment)
Patent 5252844: Semiconductor device having a redundant circuit and method of manufacturing thereof
(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 5252845: Trench DRAM cell with vertical transistor
(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) : Capacitor in trench : Vertical transistor : Si x Ge 1-x)
Patent 5252846: Semiconductor memory device with an improved erroneous write characteristic and erasure characteristic
(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) : With floating gate electrode : With additional contacted control electrode : With irregularities on electrode to facilitate charging or discharging of floating electrode :)
Patent 5252847: Electrical erasable and programmable read-only memory and manufacturing method therefor
(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) : With floating gate electrode : With additional contacted control electrode : Plural additional contacted control electrodes : Separate control electrodes for charging and for discharging floating electrode :)
Patent 5252848: Low on resistance field effect transistor
(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 : Vertical channel or double diffused insulated gate field effect device provided with means to protect against excess voltage (e.g., gate protection diode) : With additional, non-memory control electrode or channel portion (e.g., accessing field effect transistor structure))
Patent 5252849: Transistor useful for further vertical integration and method of formation
(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 : Gate controls vertical charge flow portion of channel (e.g., VMOS device) : With additional, non-memory control electrode or channel portion (e.g., accessing field effect transistor structure))
Patent 5252850: Apparatus for contouring a semiconductor, light responsive array with a prescribed physical profile
(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 housing or encapsulation : With thinned central active portion of semiconductor surrounded by thick insensitive portion (e.g. diaphragm type strain gauge))
Patent 5252851: Semiconductor integrated circuit with photo diode
(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 : Matrix or array (e.g., single line arrays) : With specific isolation means in integrated circuit : Combined with heavily doped channel stop portion)
Patent 5252852: Semiconductor device having flip chip bonding pads matched with pin photodiodes in a symmetrical layout configuration
(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 : PIN detector, including combinations with non-light responsive active devices : With particular contact geometry (e.g., ring or grid))
Patent 5252853: Packaged semiconductor device having tab tape and particular power distribution lead structure
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : LEAD FRAME : On integrated circuit)
Patent 5252854: Semiconductor device having stacked lead structure
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : LEAD FRAME : With structure for mounting semiconductor chip to lead frame (e.g., configuration of die bonding flag, absence of a die bonding flag, recess for LED) : Of insulating material)
Patent 5252855: Lead frame having an anodic oxide film coating
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : LEAD FRAME : With structure for mounting semiconductor chip to lead frame (e.g., configuration of die bonding flag, absence of a die bonding flag, recess for LED) : Of insulating material)
Patent 5252856: Optical semiconductor device
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : HOUSING OR PACKAGE : Of specified material other than copper (e.g., Kovar (T.M.)))
Patent 5252857: Stacked DCA memory 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 5252858: Refractory covercoat for semiconductor devices
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : HOUSING OR PACKAGE : Insulating material : Of insulating material other than ceramic : Housing entirely of metal except for feedthrough structure)
Patent 5252859: Jogging electric current generator
(PRIME-MOVER DYNAMO PLANTS : MISCELLANEOUS :)
Patent 5252860: Gas turbine control system having maximum instantaneous load-pickup limiter
(PRIME-MOVER DYNAMO PLANTS : ELECTRIC CONTROL : Engine control : Automatic starter including pedal control)
Patent 5252861: Starter interlock for electronically controlled vehicle
(ELECTRICAL TRANSMISSION OR INTERCONNECTION SYSTEMS : VEHICLE MOUNTED SYSTEMS : Automobile : Ignition or starter circuits : Ignition or starting circuit lock)
Patent 5252862: BICMOS logic gate
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : FUNCTION OF AND, OR, NAND, NOR, OR NOT : Bipolar and FET : Bi-CMOS : CMOS)
Patent 5252863: Drive circuit for use in a semiconductor integrated circuit
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : CLOCKING OR SYNCHRONIZING OF LOGIC STAGES OR GATES : Field-effect transistor : Two or more clocks (e.g., phase clocking, etc.) : MOSFET : Having plural output pull-up or pull-down transistors)
Patent 5252864: Normalization circuit for a measuring device
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC INPUT TO OUTPUT FUNCTION : Logarithmic : Square function)
Patent 5252865: Integrating phase detector
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC SIGNAL DISCRIMINATING (E.G., COMPARING, SELECTING, ETC.) WITHOUT SUBSEQUENT CONTROL : By phase : Comparison between plural inputs (e.g., phase angle indication, lead-lag discriminator, etc.) :)
Patent 5252866: Frequency mixing circuit
(TELECOMMUNICATIONS : RECEIVER OR ANALOG MODULATED SIGNAL FREQUENCY CONVERTER : Frequency modifying or conversion : Particular frequency conversion structure or circuitry : Transistor or integrated circuit : With nonlinear impedance (e.g., diode))
Patent 5252867: Self-compensating digital delay semiconductor device with selectable output delays and method therefor
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SIGNAL CONVERTING, SHAPING, OR GENERATING : Synchronizing : Using multiple clocks : With choice between multiple delayed clocks : Phase lock loop)
Patent 5252868: CMOS amplifier circuit and CCD delay line with CMOS amplifier
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SIGNAL CONVERTING, SHAPING, OR GENERATING : Having specific delay in producing output waveform : Single output with variable or selectable delay : Including delay line or charge transfer device : Electron tube)
Patent 5252869: Means and method for cooling radio-controlled vehicle motors
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : Cooling or fluid contact : Circulation : Claw-tooth and printed circuit components)
Patent 5252870: Magnetic eccentric motion motor
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : With other elements : Drive mechanism : Motion conversion : Swash plate : Ignition systems)
Patent 5252871: Roller thrust bearing structure for spindle shaft
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : With other elements : Bearing or air-gap adjustment or bearing lubrication : Housings, windows or covers)
Patent 5252872: Diametral runout reducer for driving a rotary sensor
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : With other elements : Bearing or air-gap adjustment or bearing lubrication : Housings, windows or covers)
Patent 5252873: DC brushless motor
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : With other elements : Bearing or air-gap adjustment or bearing lubrication : Housings, windows or covers)
Patent 5252874: Electromagnetic clutch with torque isolation for return springs
(CLUTCHES AND POWER-STOP CONTROL : CLUTCHES : Operators : Electric or magnetic : Operator for transversely engaging elements : Coil spring : Coil)
Patent 5252875: Integral motor propulsor unit for water vehicles with plural electric motors driving a single propeller
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : Plural rotary elements : Motor-generator sets)
Patent 5252876: Frequency generator and a D.C. motor equipped with same
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : Windings and core structure : Field or excitation windings or structure : Plural field windings : Damper winding)
Patent 5252877: Slot insulating magnetic wedges
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : Windings and core structure : Coil retainers or slot closers : Squirrel cage)
Patent 5252878: Brush holder assembly
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : Current collectors : Fixed structure : Brush holders or rigging : Disc)
Patent 5252879: Multi-part rotor shaft for small electric motors
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : Rotor structure : Frame and core type)
Patent 5252880: Dynamoelectric machine rotor endwindings with cooling passages
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : Rotor structure : End turn supports : Salient pole)
Patent 5252881: Micro motors and method for their fabrication
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : NON-DYNAMOELECTRIC : Charge accumulating : Electrostatic :)
Patent 5252882: Surface acoustic wave device and its manufacturing method
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : NON-DYNAMOELECTRIC : Piezoelectric elements and devices : Surface acoustic wave devices : Friction)
Patent 5252883: Laminated type piezoelectric actuator
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : NON-DYNAMOELECTRIC : Piezoelectric elements and devices : With mechanical energy coupling means : On back of piezoelectric element)
Patent 5252884: Translation device
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : NON-DYNAMOELECTRIC : Piezoelectric elements and devices : With mechanical energy coupling means : On back of piezoelectric element)
Patent 5252885: Metal halide arc discharge lamp assembly
(ELECTRIC LAMP AND DISCHARGE DEVICES : WITH TEMPERATURE MODIFIER : Double wall, jacket or casing for envelope : Sealed casing for envelope : Flow directing means in casing)
Patent 5252886: High-pressure discharge lamp with ceramic vessel
(ELECTRIC LAMP AND DISCHARGE DEVICES : WITH TEMPERATURE MODIFIER : For envelope wall : Radiating type surface)
Patent 5252887: Environmentally safe pink lamp
(ELECTRIC LAMP AND DISCHARGE DEVICES : WITH OPTICAL DEVICE OR SPECIAL RAY TRANSMISSIVE ENVELOPE : Polarizer or special ray transmission (e.g., filter) : With integrant display electrode)
Patent 5252888: Lamp capsule support base
(ELECTRIC LAMP AND DISCHARGE DEVICES : WITH ENVELOPE : Having base and connector : Plural interelectrode discharge spaces)
Patent 5252889: Color CRT with means for correcting mislanding of electron beams
(ELECTRIC LAMP AND DISCHARGE DEVICES : CATHODE RAY TUBE : Shadow mask, support or shield : With resilient support : Integral or contiguous storage and display element)
Patent 5252890: Compact type fluorescent lamp device having crooked arc path
(ELECTRIC LAMP AND DISCHARGE DEVICES : WITH LUMINESCENT SOLID OR LIQUID MATERIAL : With gaseous discharge medium : Phosphor on envelope wall : Envelope structure or material : With shield or additional electrode)
Patent 5252891: Uninterruptible fluorescent lamp circuit available for emergency lighting
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : AUTOMATIC SUBSTITUTION OF THE POWER SUPPLY : With plural cathode or anode tube)
Patent 5252892: Plasma processing apparatus
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : DISCHARGE DEVICE LOAD WITH FLUENT MATERIAL SUPPLY TO THE DISCHARGE SPACE : Electron or ion source : With magnetic field)
Patent 5252893: Light flasher apparatus
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : DISCHARGE DEVICE AND/OR RECTIFIER IN THE SUPPLY CIRCUIT : Flashers : Discharge device or rectifier in the auxiliary starting electrode circuit)
Patent 5252894: Energy saving flourescent lamp controller
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : CURRENT AND/OR VOLTAGE REGULATION : Automatic regulation : Plural field-type generator)
Patent 5252895: TFEL edge emitter structure with light emitting face at angle greater than ninety degrees to substrate street
(ELECTRIC LAMP AND DISCHARGE DEVICES : WITH LUMINESCENT SOLID OR LIQUID MATERIAL : Solid-state type : Plural layers : Organic phosphor)
Patent 5252897: Dual motor wiper control
(ELECTRICITY: MOTIVE POWER SYSTEMS : PERIODIC, REPETITIOUS OR SUCCESSIVE OPERATIONS CONTROL OF MOTOR, INCLUDING "JOG" AND "INCH" CONTROL : Different voltages)
Patent 5252898: Method of operating a windshield wiper
(ELECTRICITY: MOTIVE POWER SYSTEMS : PERIODIC, REPETITIOUS OR SUCCESSIVE OPERATIONS CONTROL OF MOTOR, INCLUDING "JOG" AND "INCH" CONTROL : Variable periods or intervals between controlling operations : Locally closed armature circuit)
Patent 5252899: Numerical control system
(ELECTRICITY: MOTIVE POWER SYSTEMS : POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) : Program- or pattern-controlled systems : With program recording or composing means : Gearing)
Patent 5252900: Harmonization control system for plural shafts
(ELECTRICITY: MOTIVE POWER SYSTEMS : POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) : Program- or pattern-controlled systems : With program recording or composing means : Multifunction manipulator (i.e., Robot) : Differential type)
Patent 5252901: System for controlling locomotion of legged walking robot
(ELECTRICITY: MOTIVE POWER SYSTEMS : POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) : Program- or pattern-controlled systems : With program recording or composing means : Multifunction manipulator (i.e., Robot) : Mobile robot :)
Patent 5252902: Servo control system
(ELECTRICITY: MOTIVE POWER SYSTEMS : POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) : Pulse-width modulated power input to motor (e.g., "duty cycle" systems) : Slewing systems)
Patent 5252903: Motor control circuit for autofocus unit
(ELECTRICITY: MOTIVE POWER SYSTEMS : OPEN-LOOP STEPPING MOTOR CONTROL SYSTEMS : Having commutating switch-type transmitter)
Patent 5252904: Auto reverse circuit
(ELECTRICITY: MOTIVE POWER SYSTEMS : INDUCTION MOTOR SYSTEMS : Reversing : Slip rings connected to secondary winding)
Patent 5252905: Driving system for single phase A-C induction motor
(ELECTRICITY: MOTIVE POWER SYSTEMS : INDUCTION MOTOR SYSTEMS : Primary circuit control : Frequency control : Responsive to motor voltage)
Patent 5252906: Method of optimizing the charging of a battery of storage cells, and apparatus for performing the method
(ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING : BATTERY OR CELL DISCHARGING : With charging : Cycling (e.g., discharge/charge cycle, etc.) : With state-of-charge detection :)
Patent 5252907: Circuit arrangement for mitigating power switch capacitance
(ELECTRICITY: POWER SUPPLY OR REGULATION SYSTEMS : OUTPUT LEVEL RESPONSIVE : Using a three or more terminal semiconductive device as the final control device : Switched (e.g., switching regulators) : With plural condition sensing : Including final control device parameter)
Patent 5252908: Apparatus and method for temperature-compensating Zener diodes having either positive or negative temperature coefficients
(ELECTRICITY: POWER SUPPLY OR REGULATION SYSTEMS : SELF-REGULATING (E.G., NONRETROACTIVE) : Using a three or more terminal semiconductive device as the final control device : For current stabilization : To derive a voltage reference (e.g., band gap regulator) : Including a ferrocapacitor across a tertiary winding)
Patent 5252909: Constant-voltage generating circuit
(ELECTRICITY: POWER SUPPLY OR REGULATION SYSTEMS : SELF-REGULATING (E.G., NONRETROACTIVE) : Using a three or more terminal semiconductive device as the final control device : For current stabilization : To derive a voltage reference (e.g., band gap regulator) : Including a ferrocapacitor across a tertiary winding)
Patent 5252910: Current mirror operating under low voltage
(ELECTRICITY: POWER SUPPLY OR REGULATION SYSTEMS : SELF-REGULATING (E.G., NONRETROACTIVE) : Using a three or more terminal semiconductive device as the final control device : For current stabilization : Including parallel paths (e.g., current mirror) : With additional stage)
Patent 5252911: AC to DC power converter with regulated bi-polar outputs
(ELECTRICITY: POWER SUPPLY OR REGULATION SYSTEMS : INCLUDING A TRANSFORMER OR AN INDUCTOR : With compensation : For current transformer : Selective)
Patent 5252912: System for warning aircraft pilot of potential impact with a power line and generating time-to-time impact signal
(ELECTRICITY: MEASURING AND TESTING : TESTING POTENTIAL IN SPECIFIC ENVIRONMENT (E.G., LIGHTNING STROKE) : Superconductors)
Patent 5252913: Line sensor with corona shield
(ELECTRICITY: MEASURING AND TESTING : MEASURING, TESTING, OR SENSING ELECTRICITY, PER SE : With coupling means (e.g., attenuator, shunt) : Transformer (e.g., split core admits conductor carrying unknown current) : Digital voltmeters)
Patent 5252914: Method of constructing and testing a circuit board designed for early diagnostics
(ELECTRICITY: MEASURING AND TESTING : MISCELLANEOUS : Combined)
Patent 5252915: Method and apparatus for detecting stator faults in rotary dynamoelectric machines
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : Motor or generator fault tests : With barrier layer)
Patent 5252916: Pneumatic test fixture with springless test probes
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : With probe elements : Probe contact enhancement : Of reflected test signal)
Patent 5252917: Scanning circuit apparatus for test
(ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY : PULSE OR DATA ERROR HANDLING : Digital logic testing : Scan path testing (e.g., level sensitive scan design (LSSD)) : Clock or synchronization : Bus or I/O channel device fault)
Patent 5252918: Apparatus and method for electromagnetically detecting the passing of a plug released into a well by a bridge circuit
(ELECTRICITY: MEASURING AND TESTING : MAGNETIC : Displacement : Having particular sensor means : Inductive : Electrically energized : Differential bridge circuit : Including plural current focussing arrays)
Patent 5252919: Apparatus producing trapezoidal waveforms from a pair of magnetic sensors for detecting the rotating angle of an object
(ELECTRICITY: MEASURING AND TESTING : MAGNETIC : Displacement : Rotary : Magnetoresistive)
Patent 5252920: Magnetic characteristics measuring apparatus with a balancing mechanism
(ELECTRICITY: MEASURING AND TESTING : MAGNETIC : With means to create magnetic field to test material : Sensor supported, positioned, or moved within pipe)
Patent 5252921: Noise canceling high-sensitive magnetometer
(ELECTRICITY: MEASURING AND TESTING : MAGNETIC : Magnetometers : Superconductive magnetometers : Plural sensors)
Patent 5252922: Radiofrequency focusing of magnetic resonance images
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE : Using a nuclear resonance spectrometer system : To obtain localized resonance within a sample :)
Patent 5252923: Nuclear magnetic resonance imaging methods
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE : Using a nuclear resonance spectrometer system : To obtain localized resonance within a sample :)
Patent 5252924: Magnetic field generating apparatus for MRI
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE : Spectrometer components : Polarizing field magnet : With homogeneity control :)
Patent 5252925: Detector assembly for an electromagnetic induction-type conductivity meter
(ELECTRICITY: MEASURING AND TESTING : ELECTROLYTE PROPERTIES : Using a conductivity determining device : Having inductance probe structure : Including an integrating device)
Patent 5252926: Apparatus and method for distinguishing between faults due to alternator failure and interruption of stator phase signals in automotive battery
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : Armature or rotor : For insulation fault)
Patent 5252927: Device for monitoring corona discharge in a dynamoelectric machine with detection probe movable in longitudinal and circumferential direction
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : Winding or coil : For insulation fault)
Patent 5252928: Charge amplifier circuit
(AMPLIFIERS : COMBINED WITH AUTOMATIC AMPLIFIER DISABLING SWITCH MEANS : Having signal applied to magnetic means)
Patent 5252929: RF power amplifier
(AMPLIFIERS : WITH CONTROL OF POWER SUPPLY OR BIAS VOLTAGE : With control of input electrode or gain control electrode bias : D.C. coupling)
Patent 5252930: Predistorter for linearization of electronic and optical signals
(AMPLIFIERS : HUM OR NOISE OR DISTORTION BUCKING INTRODUCED INTO SIGNAL CHANNEL : Electron tube or diode as impedance)
Patent 5252931: Wide band frequency amplifiers
(AMPLIFIERS : WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) : Including push-pull amplifier : Having complementary symmetry :)
Patent 5252932: Waveform equalizing filter unit
(WAVE TRANSMISSION LINES AND NETWORKS : AUTOMATICALLY CONTROLLED SYSTEMS : With control of equalizer and/or delay network : Including long line element)
Patent 5252933: Circuit breaker including forced contact parting mechanism capable of self-retaining under short circuit condition
(ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS : ELECTROMAGNETICALLY ACTUATED SWITCHES : Tripping means : Including spring-biasing or energy-storage means)
Patent 5252934: Microwave delay assembly
(WAVE TRANSMISSION LINES AND NETWORKS : COUPLING NETWORKS : Delay lines including long line elements : Temperature stabilization or compensation)
Patent 5252935: Electromagnetic switch
(ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS : ELECTROMAGNETICALLY ACTUATED SWITCHES : Multiple contact type : Contacts-selectively, sequentially, alternately, or intermittently actuated : Contact-actuation means : Reciprocating or linearly sliding : Rotary armature)
Patent 5252936: Reed relay and switch matrix device using the same
(ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS : ELECTROMAGNETICALLY ACTUATED SWITCHES : Vacuum or hermetically sealed type (e.g., reed switch) : Moving coil type)
Patent 5252937: Molded case circuit breaker modular bell alarm unit
(ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS : ELECTROMAGNETICALLY ACTUATED SWITCHES : With housing or support means : Pivoted or relatively movable independently of the armature)
Patent 5252938: Solenoid with armature biased towards the rest position with two springs
(ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS : MAGNETS AND ELECTROMAGNETS : With magneto-mechanical motive device (e.g., electromagnet with armature) : Armature-mounting means : With armature-biasing means or bias-adjustment means : Sectional plunger)
Patent 5252939: Low friction solenoid actuator and valve
(ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS : MAGNETS AND ELECTROMAGNETS : With magneto-mechanical motive device (e.g., electromagnet with armature) : Armature shape, structure or material : Balls, filings or granular material : Sectional plunger)
Patent 5252940: Soft magnetic material
(ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS : MAGNETS AND ELECTROMAGNETS : Magnet structure or material : Permanent magnets : With cooling means)
Patent 5252941: Spiral, self-terminating coil and method of making the same
(INDUCTOR DEVICES : WINDING WITH TERMINALS, TAPS, OR COIL CONDUCTOR END ANCHORING MEANS : Basket weave (single layer))
Patent 5252942: Fuse links and dual element fuse
(ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES : ELECTROTHERMALLY ACTUATED SWITCHES : Fusible element actuated : Delayed action (i.e., time lag) : Comprising significant fuse link or element structure or arrangement)
Patent 5252943: Resistor element whose electrically resistive layer has extension into openings in cylindrical ceramic support
(ELECTRICAL RESISTORS : INCASED, EMBEDDED, OR HOUSED : Terminal or lead extends into end of elongated casing or housing : Element coiled on a core)
Patent 5252944: Film-type electrical resistor combination
(ELECTRICAL RESISTORS : INCASED, EMBEDDED, OR HOUSED : Casing or housing formed on and hardened on resistor (e.g., molded) : With sealing plug, disc or cap)
Patent 5252945: High-voltage electronic parts
(ELECTRICAL RESISTORS : MISCELLANEOUS : Terminal embraces or surrounds resistance element)
Patent 5252946: Method of detecting a deflated tire on a vehicle
(COMMUNICATIONS: ELECTRICAL : LAND VEHICLE ALARMS OR INDICATORS : Internal alarm or indicator responsive to a condition of the vehicle : Tire deflation or inflation : By indirect detection means (e.g., height measurement) : Relative wheel speed : Specifying particular start/destination)
Patent 5252947: Home security device simulating a television receiver
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : With particular system function (e.g., temperature compensation, calibration) : Testing : Simulation of condition : Vertical axis)
Patent 5252948: Security system for cigarette display case
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Article placement or removal (e.g., anti-theft) : Article on pedestal, in display case, or mounted on wall (e.g., work of art) : Specified connector (e.g., phone jack-type plug))
Patent 5252949: Chemical sensor for carbon monoxide detection
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Fluent material : Gas : Lubricant)
Patent 5252950: Display with rangefinder
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : IMAGE SUPERPOSITION BY OPTICAL MEANS (E.G., HEADS-UP DISPLAY) : Plural image superposition : Number of pixels per row or column conversion (i.e., resolution conversion))
Patent 5252951: Graphical user interface with gesture recognition in a multiapplication environment
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : DISPLAY PERIPHERAL INTERFACE INPUT DEVICE : Animation)
Patent 5252952: Cursor device with zero-point resetting
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : DISPLAY PERIPHERAL INTERFACE INPUT DEVICE : Cursor mark position control device : Temporal interpolation or processing)
Patent 5252953: Computergraphic animation system
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS PROCESSING : Animation : Calligraphic)
Patent 5252954: Multiplexed driving method for an electrooptical device, and circuit therefor
(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 5252955: Liquid-crystal display unit for electronic directory
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : PLURAL PHYSICAL DISPLAY ELEMENT CONTROL SYSTEM (E.G., NON-CRT) : Display elements arranged in matrix (e.g., rows and columns) : Light-controlling display elements : Liquid crystal display elements (LCD) : Resistor-diode arrangement)
Patent 5252956: Sample and hold circuit for a liquid crystal display screen
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : PLURAL PHYSICAL DISPLAY ELEMENT CONTROL SYSTEM (E.G., NON-CRT) : Display elements arranged in matrix (e.g., rows and columns) : Light-controlling display elements : Liquid crystal display elements (LCD) : Specific display element control means (e.g., latches, memories, logic) : Particular row or column control (e.g., shift register) : Smooth or continuous)
Patent 5252957: Sample-and-hold circuit and liquid crystal display apparatus
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : PLURAL PHYSICAL DISPLAY ELEMENT CONTROL SYSTEM (E.G., NON-CRT) : Display elements arranged in matrix (e.g., rows and columns) : Light-controlling display elements : Liquid crystal display elements (LCD) : Specific display element control means (e.g., latches, memories, logic) : Ferroelectric liquid crystal elements)
Patent 5252958: Method and apparatus for interspecies communication
(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 : Particle suspensions (e.g., electrophoretic) : Input/output liquid crystal display panel)
Patent 5252959: Method and apparatus for controlling a multigradation display
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : DISPLAY DRIVING CONTROL CIRCUITRY : Intensity or color driving control (e.g., gray scale) : Spatial processing (e.g., patterns or subpixel configuration) : Non-binary weighted)
Patent 5252960: Secure keyless entry system for automatic garage door operator
(COMMUNICATIONS: ELECTRICAL : SELECTIVE : Intelligence comparison for controlling : Authorization control (e.g., entry into an area) : Coded record input (e.g., IC card or key) : Wireless transmitter : Including timing means (e.g., clock))
Patent 5252961: System for monitoring status of plurality of repeaters
(MULTIPLEX COMMUNICATIONS : DIAGNOSTIC TESTING (OTHER THAN SYNCHRONIZATION) : Fault detection : Of a repeater system : ATM least cost routing)
Patent 5252962: System monitoring programmable implantable transponder
(COMMUNICATIONS: ELECTRICAL : CONTINUOUSLY VARIABLE INDICATING (E.G., TELEMETERING) : Condition responsive : Temperature : Using particular sync)
Patent 5252963: "Selective call receiver"
(COMMUNICATIONS: ELECTRICAL : SELECTIVE : Having indication or alarm (e.g., location indication) : Code responsive (i.e., paging) : Power control or battery saving : Time based : Received signal includes power command)
Patent 5252964: Non-contact pager programming system and a pager for use therewith
(COMMUNICATIONS: ELECTRICAL : SELECTIVE : Having indication or alarm (e.g., location indication) : Code responsive (i.e., paging) : Programming the receiver : Via local device : Received signal includes power command)
Patent 5252965: Changing one of many access codes upon removal of ignition key
(COMMUNICATIONS: ELECTRICAL : SELECTIVE : Intelligence comparison for controlling : Authorization control (e.g., entry into an area) : Varying authorization : Code programming : Programming from coded record to controller : Pivoted arm)
Patent 5252966: Transmitter for remote control system for door locks
(COMMUNICATIONS: ELECTRICAL : SELECTIVE : Intelligence comparison for controlling : Authorization control (e.g., entry into an area) : Coded record input (e.g., IC card or key) : Wireless transmitter : Including timing means (e.g., clock))
Patent 5252967: Reader/programmer for two and three wire utility data communications system
(COMMUNICATIONS: ELECTRICAL : CONTINUOUSLY VARIABLE INDICATING (E.G., TELEMETERING) : With meter reading : Acoustic or vibratory (e.g., sonic, fluidic, etc.))
Patent 5252968: Apparatus and method for optical encoding and cursor control trackball
(COMMUNICATIONS: ELECTRICAL : CONTINUOUSLY VARIABLE INDICATING (E.G., TELEMETERING) : Via radiant energy beam (via particular energy) : Pulse)
Patent 5252969: Temporary signal system
(COMMUNICATIONS: ELECTRICAL : TRAFFIC CONTROL INDICATOR : Portable : Relative distence between vehicles (e.g., collision alert))
Patent 5252970: Ergonomic multi-axis controller
(CODED DATA GENERATION OR CONVERSION : BODILY ACTUATED CODE GENERATOR : Actuated by physical projection)
Patent 5252971: Data acquisition in a multi-function keyboard system which corrects for preloading of force sensors
(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 5252972: Codec having controllable frame synchronizing and clocking signals
(CODED DATA GENERATION OR CONVERSION : REVERSIBLE ANALOG TO DIGITAL CONVERTERS : To or from code based on probability)
Patent 5252973: Apparatus for digital-to-analogue conversion
(CODED DATA GENERATION OR CONVERSION : ANALOG TO OR FROM DIGITAL CONVERSION : Increasing converter resolution (e.g., dithering) : Plural slope analog to digital converter)
Patent 5252974: Encoder with error correction particularly for flash analog-to-digital converters
(CODED DATA GENERATION OR CONVERSION : ANALOG TO OR FROM DIGITAL CONVERSION : Multiplex : Linearization (e.g., nonlinear transfer characteristic compensates for nonlinear transducer))
Patent 5252975: Digital-to-analog converter having resistor networks
(CODED DATA GENERATION OR CONVERSION : ANALOG TO OR FROM DIGITAL CONVERSION : Digital to analog conversion : Coarse and fine conversions : With rollover feature (i.e., antidoublestrike))
Patent 5252976: Sequential comparison type analog-to-digital converter
(CODED DATA GENERATION OR CONVERSION : ANALOG TO OR FROM DIGITAL CONVERSION : Analog to digital conversion : Analog input compared with static reference : Recirculating : Including priority encoder)
Patent 5252977: Digital pulse generator using digital slivers and analog vernier increments
(CODED DATA GENERATION OR CONVERSION : CODE GENERATOR OR TRANSMITTER : With variable pulse spacing or grouping : With variable pulse length : Input signal compared with nonlinear ramp)
Patent 5252978: Collision warning system
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : AIRCRAFT COLLISION AVOIDANCE SYSTEM (CAS) : By motion detection)
Patent 5252979: Universal communication system
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : RADAR TRANSPONDER SYSTEM : With Telemetry : Distance measuring equipment (DME))
Patent 5252980: Target location system
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : PLURAL RADAR : With transmission to a remote station)
Patent 5252981: FMCW radar system with linear frequency modulation
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : WITH PARTICULAR CIRCUIT : For frequency modulation : With video quantizer)
Patent 5252982: Method of precise position determination
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DIRECTIVE : Including a satellite : With position indicating : With accuracy enhancing : Using differential correction :)
Patent 5252983: Method for reducing side lobes in antenna patterns
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DIRECTIVE : Utilizing correlation techniques : Side lobe elimination : Mixing each antenna channel signal : Satellite selection (i.e., tracking or acquisition))
Patent 5252984: Multiband coaxial rod and sleeve antenna
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : Active sleeve surrounds feed line : With coaxial active rod : With main and subreflector (Casse-grain type))
Patent 5252985: Whip tilt adapter
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : With support for antenna, reflector or director : Adjustable or collapsible support : Including long line element)
Patent 5252986: Image processing method for superposing plural dots on a recording medium at a predetermined interval and apparatus utilizing same
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Controller : Of ejector : Creating plural tones : Full-line array)
Patent 5252987: Process and apparatus to form on a magnetic tape a latent image by means of recording and erasing magnetic heads
(RECORDERS : MAGNETOGRAPHIC : Electrochemical)
Patent 5252988: Thermal head for thermal recording machine
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : THERMAL MARKING APPARATUS OR PROCESSES : Specific resistance recording element type : Head substrate : Using pulse width modulation)
Patent 5252989: Apparatus for forming a secondary image on a photographic printed paper
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : THERMAL MARKING APPARATUS OR PROCESSES : By electrochemical)
Patent 5252990: Optical printer head employing a phosphor for emitting light
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : ELECTRIC MARKING APPARATUS OR PROCESSES : Electrostatic : By information carrying flow of invisible charged particles : Electron beam generator with air tight envelope : Including latent image generation using luminescent material : Drop sensors)
Patent 5252991: Media edge sensor utilizing a laser beam scanner
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : LIGHT OR BEAM MARKING APPARATUS OR PROCESSES : Scan of light : With record receiver or handling means therefor : Having deflector)
Patent 5252992: Ink jet recording apparatus
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Ejector mechanism (i.e., print head) : Array of ejectors : Color type : Movement)
Patent 5252993: Capping apparatus for an ink jet printer
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Ejector mechanism (i.e., print head) : With cleaning or protector : Nozzle cap, cover, or protection : Movement :)
Patent 5252994: Ink-jet recording head
(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 5252995: Color boundary enhancement in a multi-color electrostatic printer
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : ELECTRIC MARKING APPARATUS OR PROCESSES : Electrostatic : Multicolor : Single head using light as exposure means : Using light as exposure means)
Patent 5252996: Electrophotographic recording apparatus and method capable of recording both characters and solid black picture images
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : ELECTRIC MARKING APPARATUS OR PROCESSES : Electrostatic : Photo scanning : Light emitting diodes : Laminated head including charged particle generation layer)
Patent 5252997: Visual aid for night driving
(OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING : SPECTACLES AND EYEGLASSES : With antiglare or shading : Polarizing : Spring biased)
Patent 5252998: Contact eyeglass
(OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING : SPECTACLES AND EYEGLASSES : Ophtahalmic lenses or blanks : Eye contact type : With clamping arms)
Patent 5252999: Laser apparatus including binocular indirect ophthalmoscope
(OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING : EYE EXAMINING OR TESTING INSTRUMENT : Objective type : Including illuminator : On rotary disc)
Patent 5253000: Device for projecting a moving image formed of light, shadow, and color
(OPTICS: IMAGE PROJECTORS : IMAGE MOVES ON SCREEN : Score register)
Patent 5253001: Camera having mode for multiple exposure pseudo-telescopic photography
(PHOTOGRAPHY : WITH DATA RECORDING : Data for control of subsequent processing of film : Images recorded on separate films)
Patent 5253002: Compact camera with deployable flash unit
(PHOTOGRAPHY : WITH OBJECT ILLUMINATION FOR EXPOSURE : Having flash built into camera : Diaphragm function only)
Patent 5253003: Flash-integrated camera
(PHOTOGRAPHY : WITH OBJECT ILLUMINATION FOR EXPOSURE : Variable illumination angle : Diaphragm function only)
Patent 5253004: Control device for camera
(PHOTOGRAPHY : WITH OBJECT ILLUMINATION FOR EXPOSURE : Having flash built into camera : Pop-up flash : And reflector or refractor)
Patent 5253005: Small-sized camera
(PHOTOGRAPHY : HAVING MEANS TO REFLECT IMAGE TO FILM : Having reflex mirror : Having self-erecting lens holder)
Patent 5253006: Moving-unit type developing method and a moving-unit type developing apparatus
(PHOTOGRAPHY : FLUID-TREATING APPARATUS : Fluid application to one side only of photographic medium : Plate or wafer-type photographic medium : Having doctoring or wiper blade)
Patent 5253007: Camera having special photography function
(PHOTOGRAPHY : WITH EXPOSURE OBJECTIVE FOCUSING MEANS, FOCUSING AID, OR RANGEFINDING MEANS : Lens drive circuit or motor structure : Image correlation type)
Patent 5253008: Camera
(PHOTOGRAPHY : EYE TRACKING : Including film processing tank)
Patent 5253009: Exposure control apparatus of camera having an auto-exposure bracket mode
(PHOTOGRAPHY : EXPOSURE CONTROL CIRCUIT : Bracketing : Plural blades)
Patent 5253010: Printed circuit board
(PHOTOGRAPHY : CAMERA DETAIL : Having printed circuit detail : Modular body)
Patent 5253011: Copying method and copier for film
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : Identifying, composing, or selecting : Including photocell : Including)
Patent 5253012: Substrate holding apparatus for vertically holding a substrate in an exposure apparatus
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : Step and repeat : Reflector between original and photo-sensitive paper)
Patent 5253013: Image recording apparatus having releasable fixing device
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Exposure or charging (e.g., fatigue treatment))
Patent 5253014: Image forming apparatus including a controller for controlling image forming conditions in accordance with normalized differences in
(ELECTROPHOTOGRAPHY : CONTROL OF ELECTROPHOTOGRAPHY PROCESS : Having temperature or humidity detection : Single detector for plural toners)
Patent 5253015: Sheet load system for image forming apparatus
(ELECTROPHOTOGRAPHY : DIAGNOSTICS : Component present or mounted : Electrostatic)
Patent 5253016: Contaminant control for scavengeless development in a xerographic apparatus
(ELECTROPHOTOGRAPHY : INTERNAL MACHINE ENVIRONMENT : Particle or contaminant control : Seal : Developer seal : Concentration detection)
Patent 5253017: Image forming apparatus
(ELECTROPHOTOGRAPHY : MACHINE OPERATION : Having power supply : Supplying power to charger : Having priority interrupt)
Patent 5253018: Toner image density detecting mechanism for image forming apparatus
(ELECTROPHOTOGRAPHY : CONTROL OF ELECTROPHOTOGRAPHY PROCESS : Of plural processes : Having detection of toner (e.g., patch) : By concentration detector)
Patent 5253019: Developer material transport
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Development : Dry development : Application member : Roller : Loading : Web or belt)
Patent 5253020: Image forming apparatus improved in toner supply operation
(ELECTROPHOTOGRAPHY : DIAGNOSTICS : Consumable : Toner : By concentration detector : On or adjacent to platen)
Patent 5253021: Method and apparatus of transferring toner images made up of small dry particles
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Transfer : Color : Copy medium carrier (e.g., drum or belt) : Having electrode)
Patent 5253022: Image forming apparatus
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Transfer : Electrostatic : Roller or belt : Having belt transporting copy)
Patent 5253023: Electrostatographic apparatus without cleaner
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Combined or plural functions by single component : Development and cleaning : Development)
Patent 5253024: Fixing apparatus with rectifier element
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Fixing (e.g., fusing) : Offset prevention : Stripping)
Patent 5253025: Apparatus for fixing a toner image, fixing method and electrophotographic recording equipment
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Fixing (e.g., fusing) : Cleaning of fixing member : Parting agent applicator)
Patent 5253026: Fusing apparatus having variable shape fuser roller
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Fixing (e.g., fusing) : By heat and pressure : Heated roller : Pressure rollers : Vacuum or pneumatic)
Patent 5253027: Image fixing rotatable member and image fixing apparatus with same
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Fixing (e.g., fusing) : By heat and pressure : Heated roller : Composition or layers : Cyclically (e.g., with movement of copy))
Patent 5253028: Image forming apparatus having a plurality of vertically stacked image forming units and providing easily conducted jam clearing and
(ELECTROPHOTOGRAPHY : HAVING PARTICULAR STRUCTURE : Modular or displaceable : Paper path access : New and waste toner container)
Patent 5253029: Video color printer with paper tray ejection device and method therefore
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : THERMAL MARKING APPARATUS OR PROCESSES : Record receiver driving means : Including separating means)
Patent 5253030: Image forming apparatus
(ELECTROPHOTOGRAPHY : DOCUMENT HANDLING : Copy : Delivering from transfer position : Post-processing : Having intermediate storage)
Patent 5253031: Method of forming a reference pattern for adjusting image density in copying machines
(ELECTROPHOTOGRAPHY : CONTROL OF ELECTROPHOTOGRAPHY PROCESS : Forming test image : Temperature control)
Patent 5253032: Active distance measuring apparatus
(OPTICS: MEASURING AND TESTING : RANGE OR REMOTE DISTANCE FINDING : Triangulation ranging to a point with one projected beam : Using a source beam with a fixed axial direction or plane : With a single staring photodetector having one element :)
Patent 5253033: Laser radar system with phased-array beam steerer
(OPTICS: MEASURING AND TESTING : RANGE OR REMOTE DISTANCE FINDING : With photodetection : Using at least a pair of viewing axes)
Patent 5253034: Device for displaying the core of an optical fiber
(OPTICS: MEASURING AND TESTING : FOR OPTICAL FIBER OR WAVEGUIDE INSPECTION : Lamp attachments)
Patent 5253035: Automatic optical measuring apparatus for optical fibers
(OPTICS: MEASURING AND TESTING : FOR OPTICAL FIBER OR WAVEGUIDE INSPECTION : Lamp attachments)
Patent 5253036: Near-field photometric method and apparatus
(OPTICS: MEASURING AND TESTING : LAMP BEAM DIRECTION OR PATTERN : With light attenuation)
Patent 5253037: Optimal length for refractive index sensors
(OPTICS: MEASURING AND TESTING : REFRACTION TESTING (E.G., REFRACTOMETERS) : Refractive rod engages specimen : With servo controlled optical member)
Patent 5253038: Interferometric device for detecting a centering error
(OPTICS: MEASURING AND TESTING : BY LIGHT INTERFERENCE (E.G., INTERFEROMETER) : Having polarization : For dimensional measurement : Alignment)
Patent 5253039: Process and apparatus for measuring sizes of steel sections
(OPTICS: MEASURING AND TESTING : DIMENSION : Focus)
Patent 5253040: Projection aligner
(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 5253041: Digital television signal compression apparatus
(TELEVISION : FORMAT CONVERSION : Line doublers type (e.g., interlace to progressive IDTV type) : Specified chrominance signal)
Patent 5253042: Burst phase detection circuit
(TELEVISION : SYNCHRONIZATION : Phase locking regenerated subcarrier to color burst : Burst gate : Dot sequential)
Patent 5253043: Upsampled interpolative processing of digital video signals
(TELEVISION : IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION : Color television signal processing : receiver type)
Patent 5253044: Television apparatus with automatic selection and processing of video input signals of composite and non-composite form
(TELEVISION : IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION : Switching : receiver type : Level derived within feedback path)
Patent 5253045: Interpolating finer intensity levels in dither-quantized television pictures
(TELEVISION : IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION : Combined noise reduction and transition sharpening : Specified color (e.g., saturation and contrast control))
Patent 5253046: Color image pickup apparatus for object image conversion
(TELEVISION : CAMERA, SYSTEM AND DETAIL : Combined image signal generator and general image signal processing : Details of luminance signal formation in color camera : With means for providing high band and low band luminance signals : For single sensor type camera supplying plural color signals :)
Patent 5253047: Color CCD imager having a system for preventing reproducibility degradation of chromatic colors
(TELEVISION : CAMERA, SYSTEM AND DETAIL : Combined image signal generator and general image signal processing : Color balance (e.g., white balance) : Dependent upon operation or characteristic of iris, flash, lens, or filter) : Monitor (including for controlling camera))
Patent 5253048: Color image processing apparatus
(FACSIMILE AND STATIC PRESENTATION PROCESSING : NATURAL COLOR FACSIMILE : Intermediate storage : With memory for storage of conversion data)
Patent 5253049: Tunnel vision video display system
(TELEVISION : PANORAMIC : Including intensity to color conversion (e.g., colorizer, etc.))
Patent 5253050: Distance measuring device for measuring the distance between vehicles
(TELEVISION : SPECIAL APPLICATIONS : Navigation : Land vehicle : Color TV)
Patent 5253051: Video artificial window apparatus
(TELEVISION : SPECIAL APPLICATIONS : Simulator : Land vehicle)
Patent 5253052: Apparatus for detecting relative motion between contents of successive fields of a video signal
(PULSE OR DIGITAL COMMUNICATIONS : BANDWIDTH REDUCTION OR EXPANSION : Television or motion video signal : Predictive : Separate coders)
Patent 5253053: Variable length decoding using lookup tables
(PULSE OR DIGITAL COMMUNICATIONS : BANDWIDTH REDUCTION OR EXPANSION : Television or motion video signal : Variable length coding : Discrete cosine)
Patent 5253054: Frame skip encoding apparatus for moving images
(PULSE OR DIGITAL COMMUNICATIONS : BANDWIDTH REDUCTION OR EXPANSION : Television or motion video signal : Variable length coding : Discrete cosine)
Patent 5253055: Efficient frequency scalable video encoding with coefficient selection
(PULSE OR DIGITAL COMMUNICATIONS : BANDWIDTH REDUCTION OR EXPANSION : Television or motion video signal : Block coding : Discrete cosine)
Patent 5253056: Spatial/frequency hybrid video coding facilitating the derivatives of variable-resolution images
(PULSE OR DIGITAL COMMUNICATIONS : BANDWIDTH REDUCTION OR EXPANSION : Television or motion video signal : Adaptive)
Patent 5253057: Multiplexed transmission system of image data from two or more sources wherein thinning rates are adaptively allocated to respective sources
(PULSE OR DIGITAL COMMUNICATIONS : BANDWIDTH REDUCTION OR EXPANSION : Television or motion video signal : Predictive : Separate coders)
Patent 5253058: Efficient coding scheme for multilevel video transmission
(PULSE OR DIGITAL COMMUNICATIONS : BANDWIDTH REDUCTION OR EXPANSION : Television or motion video signal : Predictive : Separate coders)
Patent 5253059: Method and circuit for adjusting the size of a video frame
(TELEVISION : BANDWIDTH REDUCTION SYSTEM : Data rate reduction : Including one conventional or compatible channel (e.g., two channel NTSC systems))
Patent 5253060: Video signal processing system with networked control of aspect ratio conversion within the system
(TELEVISION : FORMAT CONVERSION : Conversion between standards with different aspect ratios : Specified chrominance signal)
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