Patents 5218189 - 5218444

 

 

Patent 5218189: Binary encoded multiple frequency RF indentification tag
(REGISTERS : CODED RECORD SENSORS : Particular sensor structure : With paper feeding)

Patent 5218190: Means and method for non-contact bar code label verification
(REGISTERS : CODED RECORD SENSORS : Particular sensor structure : Optical : Bar code : One dimensional scan)

Patent 5218191: Instant portable bar code reader
(REGISTERS : CODED RECORD SENSORS : Particular sensor structure : Optical : Bar code : Bar width determination : Including an imager (e.g., CCD or camera-type reader))

Patent 5218192: Bar code printing medium
(REGISTERS : RECORDS : Holding devices)

Patent 5218193: Double-focus measurement apparatus utilizing chromatic aberration by having first and second bodies illuminated respectively by a single
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Photocell controls its own optical systems : Automatic focus control : Active autofocus : With a collimator)

Patent 5218194: Advanced high voltage power supply for night vision image intensifer
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Photocell controlled circuit : Special photocell or electron tube circuits : Amplifier type : Light amplifier type : Vacuum tube type :)

Patent 5218195: Scanning microscope, scanning width detecting device, and magnification indicating apparatus
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Optical or pre-photocell system : Special photocell or electron tube circuits)

Patent 5218196: Light curtain system with system and watchdog microcontrollers
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Optical or pre-photocell system : Controlled by article, person, or animal : Volume or level)

Patent 5218197: Method and apparatus for the non-invasive measurement of pressure inside pipes using a fiber optic interferometer sensor
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Optical or pre-photocell system : Light conductor : Condition responsive light guide (e.g., light guide is physically affected by parameter sensed which results in light conveyed to the photocell) : With coherent interferrometric light : Vacuum tube type)

Patent 5218198: Optical waveguide switch utilizing means for detecting a tapped off fraction of the input signal
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Optical or pre-photocell system : Light conductor : With coupling enhancement means : Keyboard or other manual switch controlled)

Patent 5218199: Optical position sensor having rigidly fixed read head
(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 5218200: Image scanner with turnable reflecting plate for scanning objects at different locations
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Optical or pre-photocell system : Means for moving optical system : Repetitious path : Rotary)

Patent 5218201: Method and apparatus for linearizing photoresistive optical sensors with sensitivity-selective masking
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Optical or pre-photocell system : Hoods, grating, baffles, diaphragms, masks : Repetitious path)

Patent 5218202: Method for automatic drift stabilization in radiation measurement with a detector
(RADIANT ENERGY : CALIBRATION OR STANDARDIZATION METHODS :)

Patent 5218203: Ion source and sample introduction method and apparatus using two stage ionization for producing sample gas ions
(RADIANT ENERGY : IONIC SEPARATION OR ANALYSIS : With sample supply means : With time-of-flight indicator)

Patent 5218204: Plasma sampling interface for inductively coupled plasma-mass spectrometry (ICP-MS)
(RADIANT ENERGY : IONIC SEPARATION OR ANALYSIS : With sample supply means : With time-of-flight indicator)

Patent 5218205: Read-out system for a luminescent storage screen
(RADIANT ENERGY : SOURCE WITH RECORDING DETECTOR : Using a stimulable phosphor : With image read-out : Including stimulation : With detector control or regulating)

Patent 5218206: Method for determining the condition of a roadway surface
(RADIANT ENERGY : INVISIBLE RADIANT ENERGY RESPONSIVE ELECTRIC SIGNALLING : Infrared responsive : With selection of plural discrete wavelengths or bands : With radiation source : Measuring infrared radiation reflected from sample : Including Fourier transform infrared spectrometry)

Patent 5218207: Using led harmonic wavelengths for near-infrared quantitative
(RADIANT ENERGY : INVISIBLE RADIANT ENERGY RESPONSIVE ELECTRIC SIGNALLING : Infrared responsive : Methods : With irradiation or heating of object or material : Sensing flame or explosion)

Patent 5218208: Device for measuring radioactive contamination of a body
(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 5218209: Ion implanter
(RADIANT ENERGY : INSPECTION OF SOLIDS OR LIQUIDS BY CHARGED PARTICLES : Analyte supports : Magnetic field path-bending means)

Patent 5218210: Broad beam flux density control
(RADIANT ENERGY : IRRADIATION OF OBJECTS OR MATERIAL : Irradiation of semiconductor devices : With optical member of material to directly modify luminous energy)

Patent 5218211: System for sampling the sizes, geometrical distribution, and frequency of small particles accumulating on a solid surface
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : With circuit for evaluating a web, strand, strip, or sheet : Evaluation by regions, zones, or pixels : Self-luminous target)

Patent 5218212: Device for optically detecting a chemical change in fluid
(RADIANT ENERGY : PHOTOCELLS; CIRCUITS AND APPARATUS : Optical or pre-photocell system : Fluent material in optical path : Digital information)

Patent 5218213: SOI wafer with sige
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : NON-SINGLE CRYSTAL, OR RECRYSTALLIZED, SEMICONDUCTOR MATERIAL FORMS PART OF ACTIVE JUNCTION (INCLUDING FIELD-INDUCED ACTIVE JUNCTION) : Amorphous semiconductor material : Responsive to nonelectrical external signals (e.g., light) : Amorphous semiconductor is alloy or contains material to change band gap (e.g., Si x Ge 1-x , SiN y ) : High temperature (i.e., >30o Kelvin))

Patent 5218214: Field oxide termination and gate oxide
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : NON-SINGLE CRYSTAL, OR RECRYSTALLIZED, SEMICONDUCTOR MATERIAL FORMS PART OF ACTIVE JUNCTION (INCLUDING FIELD-INDUCED ACTIVE JUNCTION) : Field effect device in non-single crystal, or recrystallized, Semiconductor material : Amorphous semiconductor is alloy or contains material to change band gap (e.g., Si x Ge 1-x , SiN y ))

Patent 5218215: Semiconductor device package having a thermal dissipation means that allows for lateral movement of the lead frame with respect to the
(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 5218216: Gallium nitride group semiconductor and light emitting diode comprising it and the process of producing the same
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : INCOHERENT LIGHT EMITTER STRUCTURE : With particular semiconductor material : Plural heterojunctions in same device)

Patent 5218217: Dynamic random access memory device and method of manufacturing
(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 5218218: Semiconductor device and manufacturing method 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) : Capacitor in trench : Vertical transistor : Si x Ge 1-x)

Patent 5218219: Semiconductor memory device having a peripheral wall at the boundary region of a memory cell array region and a peripheral circuit region
(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) : Stacked capacitor : With increased effective electrode surface area (e.g., tortuous path, corrugated, or textured electrodes) : With capacitor electrodes connection portion located centrally thereof (e.g., fin electrodes with central post))

Patent 5218220: Power FET having reduced threshold voltage
(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 5218221: Semiconductor device and manufacturing method thereof
(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 : Active channel region has a graded dopant concentration decreasing with distance from source region (e.g., double diffused device, DMOS transistor) : With lightly doped portion of drain region adjacent channel (e.g., LDD structure) : In integrated circuit structure)

Patent 5218222: Output ESD protection circuit
(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 : For protecting against gate insulator breakdown : Punchthrough or bipolar element : For operation as bipolar or punchthrough element)

Patent 5218223: Opto-electronic semiconductor component
(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 means for increasing light absorption (e.g., redirection of unabsorbed light) : With window means)

Patent 5218224: Semiconductor device including inversion preventing layers having a plurality of impurity concentration peaks in direction of depth
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : INTEGRATED CIRCUIT STRUCTURE WITH ELECTRICALLY ISOLATED COMPONENTS : With pn junction isolation : With structural means to control parasitic transistor action or leakage current : Combined with bipolar transistor)

Patent 5218225: Thin-film resistor layout
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : INTEGRATED CIRCUIT STRUCTURE WITH ELECTRICALLY ISOLATED COMPONENTS : Passive components in ICs : Including resistive element : Using specific resistive material : Polycrystalline silicon (doped or undoped) : With polycrystalline connecting region (e.g., polysilicon base contact))

Patent 5218226: Semiconductor device having high breakdown voltage
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : INTEGRATED CIRCUIT STRUCTURE WITH ELECTRICALLY ISOLATED COMPONENTS : With pn junction isolation : With structural means to protect against excess or reversed polarity voltage : Combined with bipolar transistor)

Patent 5218227: Semiconductor device and method of manufacturing same
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : BIPOLAR TRANSISTOR STRUCTURE : With multiple separately connected emitter, collector, or base regions in same transistor structure)

Patent 5218228: High voltage MOS transistors with reduced parasitic current gain
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : BIPOLAR TRANSISTOR STRUCTURE : With means to increase current gain or operating frequency : Including polycrystalline semiconductor as connection)

Patent 5218229: Inset die lead frame configuration lead frame for a semiconductor device having means for improved busing and die-lead frame attachment
(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 5218230: IC package with electric conductor lines in dielectric package body
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : HOUSING OR PACKAGE : With contact or lead : Having power distribution means (e.g., bus structure) : Combined with channel stop region in semiconductor)

Patent 5218231: Mold-type semiconductor device
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : COMBINED WITH ELECTRICAL CONTACT OR LEAD : Beam leads (i.e., leads that extend beyond the ends or sides of a chip component) : Stud mount)

Patent 5218232: Semiconductor device having two-level wiring
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : COMBINED WITH ELECTRICAL CONTACT OR LEAD : Of specified material other than unalloyed aluminum : Layered : At least one layer of silicide or polycrystalline silicon : Pin grid type)

Patent 5218233: LED lamp having particular lead arrangement
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : ENCAPSULATED : Configuration or pattern of bonds)

Patent 5218234: Semiconductor device with controlled spread polymeric underfill
(ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) : ENCAPSULATED : Configuration or pattern of bonds)

Patent 5218235: Power stealing circuit
(ELECTRICAL TRANSMISSION OR INTERCONNECTION SYSTEMS : PLURAL LOAD CIRCUIT SYSTEMS : Selectively connected or controlled load circuits : Condition responsive : By control of one or more load circuits)

Patent 5218236: Output circuit having an integrated circuit with a plurality of output transistors connected to an external elements
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : GATING (I.E., SWITCHING INPUT TO OUTPUT) : Utilizing three or more electrode solid-state device : Bipolar transistor : Plural : Opposite conductively (i.e., complementary) : With bipolar transistor)

Patent 5218237: Circuit forming output pulse a selected delay after initiating pulse
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SIGNAL CONVERTING, SHAPING, OR GENERATING : Rectangular (e.g., clock, etc.) or pulse waveform width control : Pulse narrowing : By phase)

Patent 5218238: Bias voltage generation circuit of ECL level for decreasing power consumption thereof
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC IDENTIFIABLE DEVICE, CIRCUIT, OR SYSTEM : With specific source of supply or bias voltage : Impact ionization)

Patent 5218239: Selectable edge rate CMOS output buffer circuit
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : SIGNAL SENSITIVITY OR TRANSMISSION INTEGRITY : Output switching noise reduction : With field effect-transistor : Depletion or enhancement)

Patent 5218240: Programmable logic cell and array with bus repeaters
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : MULTIFUNCTIONAL OR PROGRAMMABLE (E.G., UNIVERSAL, ETC.) : Array (e.g., PLA, PAL, PLD, etc.) : With field effect-transistor)

Patent 5218241: AND circuit and address circuit employing the same
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : FUNCTION OF AND, OR, NAND, NOR, OR NOT : Decoding : With field-effect transistor : CMOS : Having plural output pull-up or pull-down transistors)

Patent 5218242: Pulldown resistance control input circuit and output circuit
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : SIGNAL SENSITIVITY OR TRANSMISSION INTEGRITY : Bus or line termination (e.g., clamping, impedance matching, etc.) : With field effect-transistor)

Patent 5218243: BiCMOS TTL output buffer circuit with reduced power dissipation
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : TRI-STATE (I.E., HIGH IMPEDANCE AS THIRD STATE) : With field-effect transistor)

Patent 5218244: Logic level converter circuit
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : INTERFACE (E.G., CURRENT DRIVE, LEVEL SHIFT, ETC.) : Logic level shifting (i.e., interface between devices of different logic families) : Bi-CMOS : ECL to/from TTL :)

Patent 5218245: Programmable neural logic device
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : MULTIFUNCTIONAL OR PROGRAMMABLE (E.G., UNIVERSAL, ETC.) : Sequential (i.e., finite state machine) or with flip-flop : Field effect transistor)

Patent 5218246: MOS analog XOR amplifier
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : EXCLUSIVE FUNCTION (E.G., EXCLUSIVE OR, ETC.) : With field-effect transistor : Complementary FET`s)

Patent 5218247: CMIS circuit and its driver
(ELECTRONIC DIGITAL LOGIC CIRCUITRY : INTERFACE (E.G., CURRENT DRIVE, LEVEL SHIFT, ETC.) : Logic level shifting (i.e., interface between devices of different logic families) : Field-effect transistor (e.g., JFET, MOSFET, etc.) : ECL to/from TTL)

Patent 5218248: Bus drive circuit for use in communications
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SPECIFIC SIGNAL DISCRIMINATING (E.G., COMPARING, SELECTING, ETC.) WITHOUT SUBSEQUENT CONTROL : By amplitude : Comparison between plural varying inputs : Differential input : With reference signal)

Patent 5218249: High speed, low forward voltage drop, SCR
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : GATING (I.E., SWITCHING INPUT TO OUTPUT) : Utilizing three or more electrode solid-state device : Four or more layer device (e.g., thyristor, etc.) : Bipolar transistor circuit configuring SCR device : Complementary metal-oxide semiconductor (CMOS))

Patent 5218250: Strong magnetic thrust force type actuator
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Linear : Piezoelectric element shape)

Patent 5218251: Composite magnet stepper motor
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : Magnetic motors : Step-by-step : Successively energized solenoid coils)

Patent 5218252: Dynamoelectric machines with stator positioning
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : Cooling or fluid contact : Circulation : Heat-exchange structure : Hollow passages)

Patent 5218253: Spin motor for a hard disk assembly
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : With other elements : Electric circuit elements : Bicycle-hub generators)

Patent 5218254: Miniature motors end cap brush and terminal assembly
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : With other elements : Electric circuit elements : Connectors, terminals or lead-ins : Distributor or timer (e.g., ignition magnetos))

Patent 5218255: Electric wiper motor with autostop mechanism
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : With other elements : Electric circuit elements : Connectors, terminals or lead-ins : Distributor or timer (e.g., ignition magnetos))

Patent 5218256: Motor casing made of resin
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : With other elements : Bearing or air-gap adjustment or bearing lubrication : Housings, windows or covers)

Patent 5218257: Magnetic levitation self-regulating systems
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : DYNAMOELECTRIC : Rotary : With other elements : Bearing or air-gap adjustment or bearing lubrication : Magnetic bearing : Impulse coupling)

Patent 5218258: Ultrasonic motor and laser beam welding apparatus using the same
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : NON-DYNAMOELECTRIC : Piezoelectric elements and devices : Combined with resonant structure : Direct mechanical coupling : Motor producing continual motion : Traveling wave motor :)

Patent 5218259: Coating surrounding a piezoelectric solid state motor stack
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : NON-DYNAMOELECTRIC : Piezoelectric elements and devices : With mechanical energy coupling means : On back of piezoelectric element)

Patent 5218260: Longitudinal quartz crystal resonator
(ELECTRICAL GENERATOR OR MOTOR STRUCTURE : NON-DYNAMOELECTRIC : Piezoelectric elements and devices : Rotation of crystal axis (e.g., cut angle) : Quartz : More than one poling direction (e.g., Rosen transformer))

Patent 5218261: Single based electric lamp
(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 5218262: Apparatus for retaining an electrode by a magnetically shielded magnet
(ELECTRIC LAMP AND DISCHARGE DEVICES : WITH ELECTRODE REPLACEMENT MEANS OR DEMOUNTABLE : Arc discharge lamp or radiation source)

Patent 5218263: High thermal efficiency dispenser-cathode and method of manufacture therefor
(ELECTRIC LAMP AND DISCHARGE DEVICES : WITH SUPPORT AND/OR SPACING STRUCTURE FOR ELECTRODE AND/OR SHIELD : For indirectly heated cathode : Insulating spacer between discharge electrodes)

Patent 5218264: Image pick-up tube and apparatus having the same
(ELECTRIC LAMP AND DISCHARGE DEVICES : CATHODE RAY TUBE : Image pickup tube : Photoconductive : Electrode or electrode support)

Patent 5218265: Combined mask-frame with double spot welds
(ELECTRIC LAMP AND DISCHARGE DEVICES : CATHODE RAY TUBE : Shadow mask, support or shield : With frame : With studs)

Patent 5218266: Color picture tube having residue electron removing assembly
(ELECTRIC LAMP AND DISCHARGE DEVICES : CATHODE RAY TUBE : Shadow mask, support or shield : With frame : With studs)

Patent 5218267: Color picture tube with shadow mask-frame assembly
(ELECTRIC LAMP AND DISCHARGE DEVICES : CATHODE RAY TUBE : Shadow mask, support or shield : With frame : With studs)

Patent 5218268: Optical filter for cathode ray tube
(ELECTRIC LAMP AND DISCHARGE DEVICES : CATHODE RAY TUBE : Envelope : With external optical element : Light conducting fiber or rod)

Patent 5218269: Negative glow discharge lamp having wire anode
(ELECTRIC LAMP AND DISCHARGE DEVICES : WITH GAS OR VAPOR : Negative or cathode glow device : With positive ion or cathode shield)

Patent 5218270: Method and a coupling for decreasing the detrimental radiation caused by a cathode-ray tube
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : WITH ELECTROMAGNETIC WAVE RADIATION PREVENTING OR SHIELDING MEANS : With plural cathode or anode tube)

Patent 5218271: Plasma accelerator with closed electron drift
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : DISCHARGE DEVICE LOAD WITH FLUENT MATERIAL SUPPLY TO THE DISCHARGE SPACE : Plasma generating : With magnetic field : Acceleration : Discharge control discharge device)

Patent 5218272: Solid state electronic ballast system for fluorescent lamps
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : PULSATING OR A.C. SUPPLY : With power factor control device : Strobe lights)

Patent 5218273: Multi-function field emission device
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : DISCHARGE DEVICE LOAD : Plural discharge device loads)

Patent 5218274: Flat panel display controller using dual-port memory
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : CATHODE RAY TUBE CIRCUITS : Cathode-ray deflections circuits : For flat cathode-ray tube : Intermediate stage at lower potential)

Patent 5218275: Beam landing location error correction arrangement
(ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS : CATHODE RAY TUBE CIRCUITS : Cathode-ray deflections circuits : Including color convergence control : Including specified waveform generating circuitry : Parabolic waveform : Device has a flexible wall)

Patent 5218276: Integrated circuit device of remote control type for driving a D.C. motor
(ELECTRICITY: MOTIVE POWER SYSTEMS : SUPPLIED OR CONTROLLED BY SPACE-TRANSMITTED ELECTROMAGNETIC OR ELECTROSTATIC ENERGY (E.G., BY RADIO) : Power- or motion-transmitting mechanism)

Patent 5218277: Controller for a linear induction motor
(ELECTRICITY: MOTIVE POWER SYSTEMS : LINEAR-MOVEMENT MOTORS : Energizing winding circuit control)

Patent 5218279: Method and apparatus for detection of physical quantities, servomotor system utilizing the method and apparatus and power steering apparatus
(ELECTRICITY: MOTIVE POWER SYSTEMS : POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) : Power- or motion-transmitting mechanism)

Patent 5218280: Movement actuators
(ELECTRICITY: MOTIVE POWER SYSTEMS : POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) : Program- or pattern-controlled systems : Maneuver, force, or load-limiting)

Patent 5218281: Acceleration/deceleration control method for a numerical control device
(ELECTRICITY: MOTIVE POWER SYSTEMS : POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) : Digital or numerical systems : Slewing systems)

Patent 5218282: Automatic door operator including electronic travel detection
(ELECTRICITY: MOTIVE POWER SYSTEMS : POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) : Digital or numerical systems : Pulse-counting systems : Commutating switch-type encoder)

Patent 5218283: AC motor drive system with a two phase power supply
(ELECTRICITY: MOTIVE POWER SYSTEMS : INDUCTION MOTOR SYSTEMS : Reversing : Two phase motor : With plural primary windings or winding portions having common connection : Electromagnetic brakes)

Patent 5218284: Integral battery charging and supply regulation circuit
(ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING : CELL OR BATTERY CHARGER STRUCTURE : For battery pack : Employing "jumper" cable)

Patent 5218285: Electronic device with dual purpose regulator
(ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING : SERIALLY CONNECTED BATTERIES OR CELLS : With individual charging of plural batteries or cells : With charger stand or base)

Patent 5218286: Multichannel battery charger
(ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING : DIVERSE CHARGING OR DISCHARGING RATES FOR PLURAL BATTERIES : With generator charging source)

Patent 5218287: Lead battery assembly adapted to be charged by a charger for a nickel-cadmium battery
(ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING : MEANS TO IDENTIFY CELL OR BATTERY TYPE : Vehicle battery charging)

Patent 5218288: Method and apparatus for monitoring the operational state and stand-by of a battery
(ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING : BATTERY OR CELL DISCHARGING : With charging : With battery or cell condition monitoring (e.g., for protection from overcharging, heating, etc.) : Time control)

Patent 5218289: Electronic device for the measurement of time lags
(ELECTRICITY: MEASURING AND TESTING : MEASURING, TESTING, OR SENSING ELECTRICITY, PER SE : Phase comparison (e.g., between cyclic pulse voltage and sinusoidal current, etc.) : Quadrature sensing : Deviation measurement)

Patent 5218290: Multi-function, multi-mode switch for an instrument
(ELECTRICITY: MEASURING AND TESTING : MEASURING, TESTING, OR SENSING ELECTRICITY, PER SE : Plural ranges, scales or registration rates : Tape, sheet (e.g., disk) or wire (e.g., magnetic) storage)

Patent 5218291: Meter and meter driving system with indication fluctuation suppression and enhancement
(ELECTRICITY: MEASURING AND TESTING : MEASURING, TESTING, OR SENSING ELECTRICITY, PER SE : Plural active motor elements (e.g., for two crossed pointers) : Ratio)

Patent 5218292: Apparatus for inspecting internal circuit of semiconductor device
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : With probe elements : Pin : Of reflected test signal)

Patent 5218293: Passive high-frequency signal probe
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : With probe elements : Pin : Of reflected test signal)

Patent 5218294: Contactless test method for testing printed circuit boards
(ELECTRICITY: MEASURING AND TESTING : MISCELLANEOUS : Combined)

Patent 5218295: System for processing position signals to improve resolution of the position of an object
(ELECTRICITY: MEASURING AND TESTING : MAGNETIC : Displacement : Linear : Magnetoresistive)

Patent 5218296: Method and apparatus for determining at least one characteristic of a superconductive film
(ELECTRICITY: MEASURING AND TESTING : MAGNETIC : With means to create magnetic field to test material : Induced voltage-type sensor : Material flaw testing)

Patent 5218297: Superconductive quantum interference device in high temperature environments having reduced inductance and improved thermal noise
(ELECTRICITY: MEASURING AND TESTING : MAGNETIC : Magnetometers : Superconductive magnetometers : Plural sensors)

Patent 5218298: Two-terminal-hall-sensors monitoring system for providing decoded magnetic field amplitude signals and system diagnostic signals
(ELECTRICITY: MEASURING AND TESTING : MAGNETIC : Magnetometers : Hall plate magnetometers : Plural sensors)

Patent 5218299: Method for correcting spectral and imaging data and for using such corrected data in magnet shimming
(ELECTRICITY: MEASURING AND TESTING : PARTICLE PRECESSION RESONANCE : Using a nuclear resonance spectrometer system : Having particular optical cell structure)

Patent 5218300: Method and equipment for noise-reduction when detecting a target by means of a system of several detector elements
(ELECTRICITY: MEASURING AND TESTING : OF GEOPHYSICAL SURFACE OR SUBSURFACE IN SITU : By magnetic means : With separate pickup)

Patent 5218301: Method and apparatus for determining distance for magnetic and electric field measurements
(ELECTRICITY: MEASURING AND TESTING : OF GEOPHYSICAL SURFACE OR SUBSURFACE IN SITU : By magnetic means : Within a borehole : Within a borehole)

Patent 5218302: Interface for coupling an analyzer to a distributorless ignition system
(ELECTRICITY: MEASURING AND TESTING : INTERNAL-COMBUSTION ENGINE IGNITION SYSTEM OR DEVICE : Electronic ignition system : Coupled to artificial current source)

Patent 5218303: Broad span dynamic precious metal assay method by driving electrical pulses through an electrolyte wet junction
(ELECTROLYSIS: PROCESSES, COMPOSITIONS USED THEREIN, AND METHODS OF PREPARING THE COMPOSITIONS : ELECTROLYTIC ANALYSIS OR TESTING (PROCESS AND ELECTROLYTE COMPOSITION) : For composition of metal or metal alloy : Cations)

Patent 5218304: Electronic pH and ORP indicator
(ELECTRICITY: MEASURING AND TESTING : ELECTROLYTE PROPERTIES : Using a pH determining device : Including probe structure)

Patent 5218305: Apparatus for transmitting electrostatic spray gun voltage and current values to remote location
(ELECTRICITY: MEASURING AND TESTING : ELECTROSTATIC FIELD : For flaw detection)

Patent 5218306: Static charge warning device
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of ground fault indication : With fuse testing attachment)

Patent 5218307: Fault detection circuit and method for testing a multiple conductor cable having a shield
(ELECTRICITY: MEASURING AND TESTING : FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS : Of individual circuit component or element : Multiconductor cable : For insulation fault : Field effect transistor)

Patent 5218308: Sensor for and method of detecting the position of a piston inside the cylinder of a dashpot
(ELECTRICITY: MEASURING AND TESTING : IMPEDANCE, ADMITTANCE OR OTHER QUANTITIES REPRESENTATIVE OF ELECTRICAL STIMULUS/RESPONSE RELATIONSHIPS : Lumped type parameters : Using inductive type measurement : With a bridge circuit)

Patent 5218309: Single kernel, seed, nut, or fruit dielectric moisture content measurement
(ELECTRICITY: MEASURING AND TESTING : IMPEDANCE, ADMITTANCE OR OTHER QUANTITIES REPRESENTATIVE OF ELECTRICAL STIMULUS/RESPONSE RELATIONSHIPS : Lumped type parameters : Using capacitive type measurement : Where a material or object forms part of the dielectric being measured : To determine water content : Differential bridge circuit)

Patent 5218311: Measuring device and method for its operational setting
(ELECTRICITY: MEASURING AND TESTING : IMPEDANCE, ADMITTANCE OR OTHER QUANTITIES REPRESENTATIVE OF ELECTRICAL STIMULUS/RESPONSE RELATIONSHIPS : Lumped type parameters : Using capacitive type measurement : With phase signal processing circuit : Including a tuned or resonant circuit)

Patent 5218312: Measurement apparatus for measuring a biological substance within a fluid substrate
(ELECTRICITY: MEASURING AND TESTING : IMPEDANCE, ADMITTANCE OR OTHER QUANTITIES REPRESENTATIVE OF ELECTRICAL STIMULUS/RESPONSE RELATIONSHIPS : Lumped type parameters : Using resistance or conductance measurement : With pulse signal processing circuit : Including R/C time constant circuit : Including corrosion or erosion)

Patent 5218313: Frequency synthesizer for implementing generator of highly pure signals and circuit devices, such as VCO, PLL and SG used therein
(MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS : SIGNAL CONVERTING, SHAPING, OR GENERATING : Synthesizer : With logic or bistable circuit)

Patent 5218314: High resolution, multi-frequency digital phase-locked loop
(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 5218315: Switching amplifier
(AMPLIFIERS : MODULATOR-DEMODULATOR-TYPE AMPLIFIER : Phonon type (e.g., ultrasonic wave propagating device))

Patent 5218317: Charged-coupled device for high-power transmitters
(AMPLIFIERS : WITH PLURAL AMPLIFIER CHANNELS (E.G., PARALLEL AMPLIFIER CHANNELS) : Power or bias supply circuits and control thereof)

Patent 5218318: Variable gain amplifier
(AMPLIFIERS : WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) : Including differential amplifier : Having gain control means :)

Patent 5218319: Differential amplifier and active filter using the same
(AMPLIFIERS : WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) : Including differential amplifier : Having current mirror amplifier :)

Patent 5218320: Wideband amplifier circuit having automatic gain and offset voltage control
(AMPLIFIERS : WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) : Including differential amplifier : Having D.C. feedback bias control for stabilization :)

Patent 5218321: Low offset unity gain buffer amplifier
(AMPLIFIERS : WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) : Including push-pull amplifier : Having complementary symmetry :)

Patent 5218322: Solid state microwave power amplifier module
(AMPLIFIERS : WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) : Including distributed parameter-type coupling : Having particular biasing means)

Patent 5218323: Transistor direct-coupled amplifier
(AMPLIFIERS : WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) : Including D.C. feedback bias control for stabilization : Of diode type)

Patent 5218324: Device for the control of a phase-locked loop with frequency changing
(OSCILLATORS : AUTOMATIC FREQUENCY STABILIZATION USING A PHASE OR FREQUENCY SENSING MEANS : AFC with logic elements : Reactance device (e.g., variable capacitors, saturable inductors, reactance tubes, etc.))

Patent 5218325: Low noise oscillator
(OSCILLATORS : SOLID STATE ACTIVE ELEMENT OSCILLATOR : Transistors : L-C type : Field-effect transistor active element : Converter using silicon control rectifiers)

Patent 5218326: Distributed reflection scrambling technique
(WAVE TRANSMISSION LINES AND NETWORKS : COUPLING NETWORKS : With impedance matching : Having long line elements : Having plural concentric helices)

Patent 5218327: Variable/switchable coupler
(WAVE TRANSMISSION LINES AND NETWORKS : PLURAL CHANNEL SYSTEMS : Having branched circuits : Using directional coupler : For providing adjustable coupling : For waveguide)

Patent 5218328: Structure for a resonator using an ultrathin piezoelectric substrate
(WAVE TRANSMISSION LINES AND NETWORKS : COUPLING NETWORKS : Electromechanical filter : Using bulk mode piezoelectric vibrator : Monolithic structure)

Patent 5218329: Low profile ceramic filter with self aligning shield
(WAVE TRANSMISSION LINES AND NETWORKS : COUPLING NETWORKS : Wave filters including long line elements : Coaxial : Tunable)

Patent 5218330: Apparatus and method for easily adjusting the resonant frequency of a dielectric TEM resonator
(WAVE TRANSMISSION LINES AND NETWORKS : RESONATORS (DISTRIBUTED PARAMETER TYPE) : Coaxial or shielded : With tuning : Including directly coupled resonant sections)

Patent 5218331: Molded case circuit breaker with interchangeable trip circuits
(ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS : ELECTROMAGNETICALLY ACTUATED SWITCHES : Automatic circuit-interrupting devices (e.g., circuit-protective devices) : Responsive to predetermined or abnormal current condition (e.g., direction, phase angle or amplitude) : Magnetic or electrodynamic (e.g., blowon or blowoff))

Patent 5218332: Switch device
(ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS : ELECTROMAGNETICALLY ACTUATED SWITCHES : Multiple contact type : With adjustable, replaceable or interchangeable structural features : By reciprocating armature)

Patent 5218333: Magnetic field generating device for use with ESR device
(ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS : MAGNETS AND ELECTROMAGNETS : Magnet structure or material : With magnetic-hold control means (e.g., means to control the hold strength))

Patent 5218334: Surface mountable high current resistor
(ELECTRICAL RESISTORS : WITH INDUCTANCE-REDUCING : Ventilated helical or zigzag element)

Patent 5218335: Electronic circuit device having thin film resistor and method for producing the same
(ELECTRICAL RESISTORS : WITH BASE EXTENDING ALONG RESISTANCE ELEMENT : Resistance element coated on base : Element extends in or through openings or grooves in frame or support)

Patent 5218336: Resistor device for blower motor
(ELECTRICAL RESISTORS : WITH TERMINAL : Terminal and resistance element disposed in flat layers : Plural resistors)

Patent 5218337: Automotive vehicle tone generator
(COMMUNICATIONS: ELECTRICAL : AUDIBLE INDICATION : Diaphragm (e.g., horn or buzzer) : With sound transducer details)

Patent 5218338: Coded anti-theft system
(COMMUNICATIONS: ELECTRICAL : LAND VEHICLE ALARMS OR INDICATORS : Of burglary or unauthorized use : Including immobilization : User activated (e.g., car-jacking, etc.) : Off course, route re-search)

Patent 5218339: Arrangement for monitoring a consumer in combination with an internal combustion engine and/or a motor vehicle
(COMMUNICATIONS: ELECTRICAL : LAND VEHICLE ALARMS OR INDICATORS : Internal alarm or indicator responsive to a condition of the vehicle : Operation efficiency (e.g., engine performance, driver habits) : Accessory (e.g., speaker, radio face plate, etc.))

Patent 5218340: Audible turn signal canister unit
(COMMUNICATIONS: ELECTRICAL : LAND VEHICLE ALARMS OR INDICATORS : External signal light system : Turn signal : Portable signal)

Patent 5218341: Door lock reinforcer and alarm device
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Intrusion detection : Door or window movement : Portable : Programmable)

Patent 5218342: Method for the production of novel secure magnetic tapes
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Article placement or removal (e.g., anti-theft) : Detectable device on protected article (e.g., "tag") : Specified device housing or attachment means : Fence)

Patent 5218343: Portable field-programmable detection microchip
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Human or animal : House arrest system, wandering, or wrong place : Specified device housing or attachment means)

Patent 5218344: Method and system for monitoring personnel
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Human or animal : House arrest system, wandering, or wrong place : Specified device housing or attachment means)

Patent 5218345: Apparatus for wide-area fire detection
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Flame : By radiant energy : Specified device housing or attachment means)

Patent 5218346: Low volume flow meter
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Fluent material : Flow rate : Bridge circuit)

Patent 5218347: Apparatus for detecting hazardous gases
(COMMUNICATIONS: ELECTRICAL : CONDITION RESPONSIVE INDICATING SYSTEM : Specific condition : Fluent material : Gas : Semiconductor detector : Photoelectric)

Patent 5218348: Versatile assembly for housing an interactive computer
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : DISPLAY PERIPHERAL INTERFACE INPUT DEVICE : Including keyboard : Trackball)

Patent 5218349: Multi-backspace key system for keyboard operation
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : DISPLAY PERIPHERAL INTERFACE INPUT DEVICE : Including keyboard : Having programmable function key : Optical detector)

Patent 5218350: Image processing method for dodging with softened edge transitions
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : COMPUTER GRAPHICS PROCESSING : Graphic manipulation (object processing or display attributes) : Image with abnormal condition)

Patent 5218351: Electrically conductive transparent material and display device using the electrically conductive transparent material
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : PLURAL PHYSICAL DISPLAY ELEMENT CONTROL SYSTEM (E.G., NON-CRT) : Delay line)

Patent 5218352: Liquid crystal display circuit
(COMPUTER GRAPHICS PROCESSING AND SELECTIVE VISUAL DISPLAY SYSTEMS : PLURAL PHYSICAL DISPLAY ELEMENT CONTROL SYSTEM (E.G., NON-CRT) : Segmented display elements : Light-controlling display elements : Liquid crystal elements : Photosensor encoder)

Patent 5218353: Display device for a recording device capable of displaying a plurality of operating states or conditions in effect
(COMMUNICATIONS: ELECTRICAL : VISUAL INDICATION : Multiple colors : Drum indicator)

Patent 5218354: Communication system with improved resource assignment
(TELECOMMUNICATIONS : TRANSMITTER AND RECEIVER AT SEPARATE STATIONS : Plural transmitters or receivers (i.e., more than two stations) : Central station (e.g., master, etc.) : Channel allocation : Ranking (e.g., based on signal strength, etc.) :)

Patent 5218355: Apparatus for projecting artificial horizon viewable by peripheral vision
(COMMUNICATIONS: ELECTRICAL : AIRCRAFT ALARM OR INDICATING SYSTEMS : Nonalarm flight indicator : Attitude : Magnetic field guide)

Patent 5218356: Wireless indoor data relay system
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DIRECTIVE : Sensitivity time control (STC))

Patent 5218357: Miniature modular microwave end-to-end receiver
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DIRECTIVE : Including a radiometer : With pulse shaping)

Patent 5218358: Low cost architecture for ferrimagnetic antenna/phase shifter
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DIRECTIVE : Including a steerable array : With electronic scanning : Controlled : Satellite selection (i.e., tracking or acquisition))

Patent 5218359: Adaptive array antenna system
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DIRECTIVE : Utilizing correlation techniques : Sum of each antenna signal : Mixing each antenna channel signal)

Patent 5218360: Millimeter-wave aircraft landing and taxing system
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DIRECTIVE : Beacon or receiver : With transmisson of bearing or position determinative signals : Fixed course or bearing indicating : VOR)

Patent 5218361: Interferometer ambiguity resolution using missile roll
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DIRECTIVE : Beacon or receiver : Direction-finding receiver only : With continuously movable antenna pattern : Including plural moving antennas : Tracking interferometer)

Patent 5218362: Multistep analog-to-digital converter with embedded correction data memory for trimming resistor ladders
(CODED DATA GENERATION OR CONVERSION : CONVERTER CALIBRATION OR TESTING : Trimming control circuits : Digital signal to analog resolver or synchro signal)

Patent 5218363: High-speed switching tree with input sampling pulses of constant frequency and means for varying the effective sampling rate
(CODED DATA GENERATION OR CONVERSION : SAMPLE AND HOLD : Having variable sampling rate : Digital signal to analog resolver or synchro signal)

Patent 5218364: D/A converter with variable biasing resistor
(CODED DATA GENERATION OR CONVERSION : ANALOG TO OR FROM DIGITAL CONVERSION : With particular solid state devices (e.g., Gunn effect device, Josephson device, drift transistor, using solid state active devices as impedances) with other at longer intervals) : Field effect transistor : With rollover feature (i.e., antidoublestrike))

Patent 5218365: Beacon interrogator beamwidth control using sidelobe signal integration in transponders
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : AIR TRAFFIC CONTROL : Secondary Surveilance Radar (SSR) or Air Traffic Control Radar Beacon System (ATCRBS) : With side lobe suppression : By varying gain or blocking receiver)

Patent 5218366: Emergency transmitter buoy for use on marine vessels
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DIRECTIVE : Beacon or receiver : Difference of each antenna channel signal)

Patent 5218367: Vehicle tracking system
(COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) : DIRECTIVE : Position indicating (e.g., triangulation) : Land vehicle location (e.g., bus, police car : Having traffic control)

Patent 5218368: Array antenna with radiation elements and amplifiers mounted on same insulating film
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : Microstrip : Reflector or director)

Patent 5218369: Antenna quick release
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : With radio cabinet :)

Patent 5218370: Knuckle swivel antenna for portable telephone
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : With radio cabinet :)

Patent 5218371: Antenna array for enhanced field falloff
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : High frequency type loops : Plural : With feedback)

Patent 5218372: Wide band spherical antenna with improved impedance-matching circuit
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : With lumped reactance for loading antenna : Loop type)

Patent 5218373: Hermetically sealed waffle-wall configured assembly including sidewall and cover radiating elements and a base-sealed waveguide window
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : Wave guide type (e.g., horn) : With horn : With main and subreflector (Casse-grain type))

Patent 5218374: Power beaming system with printer circuit radiating elements having resonating cavities
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : Within conductive apertured wall : Loop type)

Patent 5218375: Rapidly extendible and retractable antenna mast
(COMMUNICATIONS: RADIO WAVE ANTENNAS : ANTENNAS : With support for antenna, reflector or director : Adjustable or collapsible support : Telescoping : Quarter-wave transformer)

Patent 5218376: Liquid jet method, recording head using the method and recording apparatus using the method
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Ejector mechanism (i.e., print head) : Drop-on-demand : With thermal force ejection : Thermal force generators : Wiring)

Patent 5218377: Laser printing device with control of oscillation amplitude
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : LIGHT OR BEAM MARKING APPARATUS OR PROCESSES : Scan of light : Feedback of light for intensity control : Housing or mounting)

Patent 5218378: Writing compensator for thresholded media
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : LIGHT OR BEAM MARKING APPARATUS OR PROCESSES : Scan of light : Driving circuitry : Housing or mounting)

Patent 5218379: Photographic material clamp
(RECORDERS : RECORD RECEIVERS AND/OR DRIVING MEANS THEREFOR : Drum : Card receiver)

Patent 5218380: Platen drag mechanism for thermal printers
(RECORDERS : RECORD RECEIVERS AND/OR DRIVING MEANS THEREFOR : Web : Card receiver)

Patent 5218381: Hydrophobic coating for a front face of a printhead in an ink jet printer
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : INK JET : Ejector mechanism (i.e., print head) : Discharge means : Surface treated : Movement)

Patent 5218382: Electrostatic printer head structure and styli geometry
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : ELECTRIC MARKING APPARATUS OR PROCESSES : Electrostatic : Specific electrostatic head : Specific head tip : Block driving)

Patent 5218383: Image forming apparatus employing led head
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : ELECTRIC MARKING APPARATUS OR PROCESSES : Electrostatic : Photo scanning : Light emitting diodes : Laminated head including charged particle generation layer)

Patent 5218384: Spectacles having pivotable lens covers
(OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING : SPECTACLES AND EYEGLASSES : Folding : Spring biased or secured by friction members)

Patent 5218385: Flash light eyeglasses with hinge switch
(OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING : SPECTACLES AND EYEGLASSES : Combined : Neck retainers)

Patent 5218386: Eyeglasses with spectral color shift
(OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING : SPECTACLES AND EYEGLASSES : Ophtahalmic lenses or blanks : With light filtering means : Hydrophilic)

Patent 5218387: Eye position detecting apparatus
(OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING : EYE EXAMINING OR TESTING INSTRUMENT : Objective type : Including eye movement detection : Using photodetector :)

Patent 5218388: Film monitor for use in automating movie theater operation
(OPTICS: MOTION PICTURES : WITH FILM CARRIED CONTROL SIGNALS : Transition effects (e.g., wipes and dissolves))

Patent 5218389: Portable interactive multimedia presentation unit
(OPTICS: IMAGE PROJECTORS : MISCELLANEOUS : Slides gripped or hooked)

Patent 5218390: Compact camera with integral body grip
(PHOTOGRAPHY : CAMERA SUPPORT : Operator supported : Integral with camera body : Having film transport mechanism locked by perforation sensing pawl)

Patent 5218391: Instant camera with reversable rollers for cleaning
(PHOTOGRAPHY : SELF-DEVELOPING CAMERA : Including means to treat superimposed material : Including pressure means : Roller : Mechanical detail of roller or roller drive : Holding chamber)

Patent 5218392: Apparatus for recording position information of principal image and photographic printing method using position information
(PHOTOGRAPHY : WITH DATA RECORDING : Data for control of subsequent processing of film : Images recorded on separate films)

Patent 5218393: Viewfinder with field of view indicating frame
(PHOTOGRAPHY : WITH VIEWFINDER : Rear plates replaceable)

Patent 5218394: Automatic focusing camera with improved determination of operation modes
(PHOTOGRAPHY : SELF-ORGANIZING SYSTEM : Including film processing tank)

Patent 5218395: Camera with a multi-zone focus detecting device
(PHOTOGRAPHY : WITH EXPOSURE OBJECTIVE FOCUSING MEANS, FOCUSING AID, OR RANGEFINDING MEANS : With amplification control : With mechanical rangefinder)

Patent 5218396: View finder having a light emitting device
(PHOTOGRAPHY : WITH EXPOSURE OBJECTIVE FOCUSING MEANS, FOCUSING AID, OR RANGEFINDING MEANS : Having indicator : Having lock mechanism)

Patent 5218397: Automatic exposure control apparatus for a camera
(PHOTOGRAPHY : WITH OBJECT ILLUMINATION FOR EXPOSURE : Having preexposure illumination : Including focusing screen)

Patent 5218398: Exposure amount indicator
(PHOTOGRAPHY : WITH OBJECT ILLUMINATION FOR EXPOSURE : Having artificial illumination termination control : Having indicator : And reflector or refractor)

Patent 5218399: Display system for camera having segment display portion and dot matrix display portion
(PHOTOGRAPHY : HAVING CAMERA INDICATOR : Nonmechanical visual display : Character segment display : Using stepping motor)

Patent 5218400: Developing apparatus of photoresist
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : With developing : Book page copying)

Patent 5218401: Instant photocopying apparatus
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : With developing : Book page copying)

Patent 5218402: Color image reproduction with compensating light source
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : Multicolor picture : Regulating light intensity or exposure time : Including :)

Patent 5218403: Photo video copier apparatus
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : Tilting : Regulating light intensity or exposure time)

Patent 5218404: Lens shift device for a photographic printer
(PHOTOCOPYING : PROJECTION PRINTING AND COPYING CAMERAS : Focus or magnification control : Reflector between original and photo-sensitive paper)

Patent 5218405: Photoreceptor drum runout control apparatus
(ELECTROPHOTOGRAPHY : HAVING PARTICULAR STRUCTURE : Modular or displaceable : Photoconductive member : Drum mount : Toner cartridge)

Patent 5218406: Memory card features
(ELECTROPHOTOGRAPHY : DIAGNOSTICS : Service mode : Electrostatic)

Patent 5218407: Apparatus for initial set-up of developer unit in an image forming apparatus
(ELECTROPHOTOGRAPHY : DIAGNOSTICS : Consumable : Toner : Deterioration or developability of toner : On or adjacent to platen)

Patent 5218408: Image forming apparatus with photosensors for detecting original size
(ELECTROPHOTOGRAPHY : DOCUMENT HANDLING : Original : Having detection of size : For continuous or fanfold paper)

Patent 5218409: Image forming apparatus
(ELECTROPHOTOGRAPHY : CONTROL OF ELECTROPHOTOGRAPHY PROCESS : Control of developing : Concentration control : Setting of reference value : On or adjacent to platen)

Patent 5218410: Cleaning roll material and fixing apparatus
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Fixing (e.g., fusing) : Offset prevention : Parting agent applicator : Cleaning member : Vacuum or pneumatic)

Patent 5218411: Sheet conveying device with curl reduction feature
(ELECTROPHOTOGRAPHY : IMAGE FORMATION : Fixing (e.g., fusing) : Having treatment of image : Contact)

Patent 5218412: 180 degree rotating cleaning blade holder
(ELECTROPHOTOGRAPHY : CLEANING OF IMAGING SURFACE : Blade : Having holder : Lamination)

Patent 5218413: Optical device for image forming apparatus
(INCREMENTAL PRINTING OF SYMBOLIC INFORMATION : LIGHT OR BEAM MARKING APPARATUS OR PROCESSES : Scan of light : Cathode ray device : With means for driving or supplying current to the resistive heating elements)

Patent 5218414: Distance measuring apparatus utilizing two-dimensional image
(OPTICS: MEASURING AND TESTING : RANGE OR REMOTE DISTANCE FINDING : Triangulation ranging with photodetection, but with no projected beam : Using at least a pair of viewing axes : With at least one paired set of staring photodetectors)

Patent 5218415: Device for optically detecting inclination of a surface
(OPTICS: MEASURING AND TESTING : ANGLE MEASURING OR ANGULAR AXIAL ALIGNMENT : Photodetection of inclination from level or vertical : With photodetection of reflected beam angle with respect to a unidirectional source beam)

Patent 5218416: Irradiance calibration with solar diffuser
(OPTICS: MEASURING AND TESTING : STANDARD : Having predetermined light transmission regions (e.g., holes, aperture, multiple material articles))

Patent 5218417: System and methods for measuring the haze of a thin film
(OPTICS: MEASURING AND TESTING : BY DISPERSED LIGHT SPECTROSCOPY : Lamp attachments)

Patent 5218418: Differential fiber optic sensor and method
(OPTICS: MEASURING AND TESTING : BY LIGHT INTERFERENCE (E.G., INTERFEROMETER) : Using fiber or waveguide interferometer : Multiplexed sensor array : By dithering (suspensions, drives, flexures))

Patent 5218419: Fiberoptic interferometric sensor
(OPTICS: MEASURING AND TESTING : BY LIGHT INTERFERENCE (E.G., INTERFEROMETER) : Using fiber or waveguide interferometer : Lock-in prevention)

Patent 5218420: Optical resonance accelerometer
(OPTICS: MEASURING AND TESTING : BY LIGHT INTERFERENCE (E.G., INTERFEROMETER) : Using fiber or waveguide interferometer : Resonant cavity : By dithering (suspensions, drives, flexures))

Patent 5218421: Wavelength detecting apparatus
(OPTICS: MEASURING AND TESTING : BY LIGHT INTERFERENCE (E.G., INTERFEROMETER) : Having partially reflecting plates in series (e.g., Fabry-Perot type) : Having Schlieren effect)

Patent 5218422: Interferometric analyzer for multiple substance detection
(OPTICS: MEASURING AND TESTING : BY LIGHT INTERFERENCE (E.G., INTERFEROMETER) : Spectroscopy : Fabry-Perot type or Etalon Type : With diffraction grating means)

Patent 5218423: Method and apparatus for generating a plurality of radiation beams from incident radiation in a multiple wavelength interferometer
(OPTICS: MEASURING AND TESTING : BY LIGHT INTERFERENCE (E.G., INTERFEROMETER) : For dimensional measurement : Contour or profile : By wavefront detection : Of highly reflective surface (e.g., mirror) : Having wavefront division (e.g., by diffraction))

Patent 5218424: Flying height and topography measuring interferometer
(OPTICS: MEASURING AND TESTING : BY LIGHT INTERFERENCE (E.G., INTERFEROMETER) : Having polarization : For dimensional measurement : Alignment)

Patent 5218425: Measuring method and apparatus of roof surface
(OPTICS: MEASURING AND TESTING : BY LIGHT INTERFERENCE (E.G., INTERFEROMETER) : For dimensional measurement : For orientation or alignment : Tilt : Having wavefront division (e.g., by diffraction))

Patent 5218426: Highly accurate in-situ determination of the refractivity of an ambient atmosphere
(OPTICS: MEASURING AND TESTING : BY LIGHT INTERFERENCE (E.G., INTERFEROMETER) : For refractive indexing : Contour or profile)

Patent 5218427: Ranging system for three-dimensional object digitizing
(OPTICS: MEASURING AND TESTING : SHAPE OR SURFACE CONFIGURATION : Triangulation : Wheel alignment)

Patent 5218428: Optical transmittance apparatus for fluids
(OPTICS: MEASURING AND TESTING : FOR LIGHT TRANSMISSION OR ABSORPTION : Of fluent material : Photoelectric (e.g., sequential viewing))

Patent 5218429: High-definition television signal converter
(TELEVISION : FORMAT CONVERSION : Specified chrominance processing : Frequency change of subcarrier : Field or frame sequential to simultaneous)

Patent 5218430: Color video transmission
(TELEVISION : FORMAT CONVERSION : Specified chrominance processing : Motion adaptive)

Patent 5218431: Raster image lossless compression and decompression with dynamic color lookup and two dimensional area encoding
(TELEVISION : FORMAT : Including pulse modulation of video signal (e.g., pulse width, PAM) : Pulse code modulation : Field or frame sequential to simultaneous)

Patent 5218432: Method and apparatus for merging video data signals from multiple sources and multimedia system incorporating same
(TELEVISION : IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION : Special effects : Combining plural sources : Specified details of key signal generation or processing : Including hue detection (e.g., chroma key))

Patent 5218433: Real time scanning device signal processing circuit including color signal and blanking signal generating circuits
(TELEVISION : IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION : Hue control : Automatic)

Patent 5218434: Computerized method of reproducing an original image using a set of standard originals
(FACSIMILE AND STATIC PRESENTATION PROCESSING : NATURAL COLOR FACSIMILE : Color correction : Color masking)

Patent 5218435: Digital advanced television systems
(PULSE OR DIGITAL COMMUNICATIONS : BANDWIDTH REDUCTION OR EXPANSION : Television or motion video signal : Predictive : Motion vector : Subband coding)

Patent 5218436: Processing circuit for a plurality of different TV signals
(TELEVISION : FORMAT CONVERSION : Conversion between standards with different aspect ratios : Specified chrominance signal)

Patent 5218437: Signal separator for separating teletext bit sequences from a broadcast television signal
(TELEVISION : NONPICTORIAL DATA PACKET IN TELEVISION FORMAT : Data separation or detection : Frequency change of subcarrier)

Patent 5218438: Picture aperture correction circuit
(TELEVISION : CAMERA, SYSTEM AND DETAIL : Combined image signal generator and general image signal processing : With transition or edge sharpening (e.g., aperture correction) : Color TV : In charge coupled type sensor)

Patent 5218439: Photo video camera device
(TELEVISION : SPECIAL APPLICATIONS : Film, disc or card scanning : Position detection)

Patent 5218440: Switched resistive neural network for sensor fusion
(TELEVISION : IMAGE FALSIFICATION TO IMPROVE VIEWER PERCEPTION OF SELECTIVE OBJECT (E.G., MOVING OBJECT OR TARGET) : Color TV)

Patent 5218441: Method and apparatus for reducing brightness flickering of television images
(TELEVISION : SPECIAL APPLICATIONS : Combined electronic sensing and photographic film cameras : Image magnifying)

Patent 5218442: Camera with camera-shake detection apparatus
(TELEVISION : CAMERA, SYSTEM AND DETAIL : Camera image stabilization : Combined with other camera operations (e.g., autofocus or autoexposure details) : Warning/indicator : Optics, lens shifting)

Patent 5218443: Television camera tube with spurious image black-out screen
(TELEVISION : CAMERA, SYSTEM AND DETAIL : Cathode-ray tube : Remanent image erasure : Line transfer type)

Patent 5218444: Zoom and auto focus controls for video camera
(TELEVISION : CAMERA, SYSTEM AND DETAIL : Optics : Focus control : With zoom position detection or interrelated iris control : With dichroic layer or air gap between prism sections)

 

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