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Patent # Description
US-5,278,591 Eyeglass holder clip and accessory kit
An eyeglass framework has a respective first and second folding leg mounting at opposed ends thereof, with at least one leg having a clip member formed with a...
US-5,278,590 Transparent optically variable device
Transparent optically variable device comprising a symmetric three-layer coating. The three-layer coating has first and second partially transmitting absorber...
US-5,278,589 Single pass color printer
A single pass tandem color printer is disclosed which utilizes a plurality of Raster Output Scan (ROS) systems mounted within a common housing. The ROS systems...
US-5,278,588 Electrographic printing device
An electrographic printhead is operated to focus charged particles on a print member. In one embodiment successive electrodes are maintained at potentials that...
US-5,278,587 Method and apparatus for image registration
The present invention is directed to a precise method of registering plurality of imaging stations, so as to form sequential images on a photoreceptor belt in a...
US-5,278,586 Image forming apparatus with automatic multiple image alignment
An image forming apparatus having a rotatable image carrier, a first exposing device for forming an electrostatic latent image by irradiating an optical beam...
US-5,278,585 Ink jet printhead with ink flow directing valves
A thermal ink jet printhead has a flow directing one-way valve for reducing back-flow directed forces generated by the droplet ejecting ink vapor bubbles, so...
US-5,278,584 Ink delivery system for an inkjet printhead
This invention provides an improved ink flow path between an ink reservoir and vaporization chambers in an inkjet printhead. In the preferred embodiment, a...
US-5,278,583 Ink-jet recording apparatus
An ink-jet recording apparatus comprising an ink-discharging opening coupled to an ink chamber for discharging ink therefrom toward a recording sheet. The...
US-5,278,582 Printer driving circuit
A driving circuit of an on-demand ink jet printer having a head with injection nozzles disposed in a matrix, wherein data is read out of a picture memory in...
US-5,278,581 Printer for printing and image formed of 2-dimensionally arranged pixels, and method of printing the same
A printer has a shift register, an emission-time setting section, a laser diode, and a drive section. The register supplies the emission-time setting section...
US-5,278,580 Thermal head
A thermal head comprises a head circuit board having a surface carrying a heating resistor line and at least one drive element for heating the resistor line. The...
US-5,278,579 Optical fiber support and storage device
An imaging system comprising a source of light movable with respect to a writing element and projectable thereon to generate an image, a focusing system is...
US-5,278,578 Thermal printer capable of using dummy lines to prevent banding
A thermal printer is disclosed which is a adapted to form an image on a thermal print medium of a type in which a donor element transfers dye to a receiver...
US-5,278,577 Method of carrying out a thermal transfer printing by using a thermal transfer printer
A thermal transfer printing is carried out in a printer. A cassette case housing a thermal transfer printing film is inserted into the printer and set in...
US-5,278,576 Intermediate receiver opaque support
A thermal dye transfer process, and intermediate receiver used therein, for obtaining a color image which is used to represent a printed color image obtained...
US-5,278,575 Broadband microstrip to slotline transition
A broadband transition between microstrip transmission line and slotline transmission line. The geometry of integrating the two transmission lines results in a...
US-5,278,574 Mounting structure for multi-element phased array antenna
A low cost, light weight, high performance phase shifter mounting structure which allows high density packaging of phase control modules for phased array...
US-5,278,573 Electronic article surveillance system and tag circuit components therefor
An electronic article surveillance tag comprises a reradiator element, a nonlinear element connected electrically to the reradiator element, and an electrical...
US-5,278,572 Antenna coupling circuit using capacitive coupling
A capacitive antenna coupling circuit including a counter electrode which is connected to one end of at least one meandering conductor and a peripheral conductor...
US-5,278,571 RF coupler for measuring RF parameters in the near-field
An RF coupler is used to measure transmitted power and receiver sensitivity of an avionics RF transceiving system (e.g., a secondary radar transponder). The...
US-5,278,570 Combined coaxial connector and radio frequency switch assembly
An antenna connector and RF switch assembly (10) is provided on a portable radio (14). The radio includes a self-contained antenna (16) and a radio circuit (27)....
US-5,278,569 Plane antenna with high gain and antenna efficiency
A plane antenna with high gain and antenna efficiency. The antenna includes an antenna unit comprising: a first dielectric body; a first grounding conductor body...
US-5,278,568 Method of and apparatus for two-way radio communication amongst fixed base and mobile terminal users employing...
A method of and apparatus for two-way radio meteor scatter communication amongst mobile transceiver-equipped terminals and fixed meteor scatter base terminal(s)...
US-5,278,567 Post detection integration method and apparatus for pulse compression radar utilizing surface acoustic wave...
Received expanded radar pulses pass through a surface acoustic wave (SAW) weighted filter (64) for sidelobe suppression, and then into a SAW tapped delay line...
US-5,278,566 Radar apparatus
A radar apparatus radiates search signals successively in different directions, receives echo signals and displays the signals so that surrounding conditions in...
US-5,278,565 Apparatus for setting individual different electronic devices of an equipment system
In an apparatus for setting individual different electronic devices of an equipment system for measuring or detecting the properties of a selected object, a...
US-5,278,564 Method and apparatus for the determination of the height of a target
Radar apparatus for determining the height of a low-elevation target, the target being illuminated by a transmitter (7) and an antenna (3) via a TR-switch (6)....
US-5,278,563 Vehicle identification and classification systems
An interrogator-transponder system in which multiple vehicle mounted transponders which may be closely spaced in distance and moving at similar velocities,...
US-5,278,562 Method and apparatus using photoresistive materials as switchable EMI barriers and shielding
A method and apparatus for providing a switchable electromagnetic interference (EMI) barrier. The method protects an object against electromagnetic radiation,...
US-5,278,561 Analog-to-digital converter with parallel with analog signal paths of uniform transmission lines
The present invention provides an analog-to-digital converter which is improved in high frequency characteristics of the analog signal input circuit. The stray...
US-5,278,560 Binary signal generator for RDS radio receiver
In a circuit arrangement for deriving a binary signal from an alternating voltage (U), in which the alternating voltage can be delivered via a capacitor to the...
US-5,278,559 Noise shaping circuit having plural feedback coefficient multipliers
Coefficient multipliers are inserted into feedback loops between an output of a delay unit and an input of an adder, and between an output of the other delay...
US-5,278,558 High accuracy digital to analog converter adjustment method and apparatus
An apparatus and method of calibrating a digital to analog converter including means for establishing and storing a minimum and maximum analog endpoint value...
US-5,278,557 Cursor movement control key and electronic computer keyboard for computers having a video display
A cursor movement control key and electronic keyboard for a computer having a video display incorporates a force-sensitive resistor having a junction resistance...
US-5,278,556 Remote controlled light emitting automobile locating alarm system
A remote control light emitting automobile locating alarm system includes a receiver for placement within the automobile, and a remote control unit for...
US-5,278,555 Single inductive sensor vehicle detection and speed measurement
A determination is made whether a minimum threshold period (or frequency) change has occurred in an oscillator signal indicating the initial presence of a...
US-5,278,554 Road traffic control system with alternating nonstop traffic flow
The central version of the road traffic control system maintains nonstop flow of traffic on selected lanes of fastroads (1A, 1B, 1C, 4A, 4B, 4C, 31A, 31B, 31C,...
US-5,278,553 Apparatus for warning of approaching emergency vehicle and method of warning motor vehicle operators of...
A method and apparatus for warning a motor vehicle operator of an approaching emergency motor vehicle having a sounding siren. The method comprehends selecting...
US-5,278,552 Indicator control circuit
An indicator control circuit includes a signal conversion circuit for converting an analog signal corresponding to a predetermined physical quantity into first...
US-5,278,551 Meter reading system
A meter at each user's house has a bar-coded user number shown thereon, and has a display section for displaying a reading. A data input terminal unit has a bar...
US-5,278,550 Apparatus and method for retrieving and/or communicating with downhole equipment
Method and apparatus for fishing for and/or communicating with subsurface apparatus. In a preferred embodiment, a subsurface logging-while-drilling (LWD) or...
US-5,278,549 Wireline cycle life counter
A wireline monitor performs the following tasks: it gives an alarm at a predetermined percentage of cycle life and can give a reading of the percentage of cycle life...
US-5,278,548 Buffered feedthrough crossbar switch
An improved crossbar switch in which internal buffering is performed for input signals across the chip and in which an extra input for each output channel of...
US-5,278,547 Vehicle systems control with vehicle options programming
A vehicle control system includes a microcontroller based switch programmable module which allows a variety of different vehicle options to be selectively...
US-5,278,546 Selective call receiver having received message indicators
A selective call receiver (100) comprises means for receiving messages (104) and memory means (108) for storing the received messages. Displaying means (130) for...
US-5,278,545 Backlit LCD display panels including sensible panels for pen-driven computers
A combined backlighting panel, position determination system, and display for use in pen-driven computer systems. There is a panel of a transparent material...
US-5,278,544 Bistable electrooptical device, screen incorporating such a device and process for producing said screen
A bistable electrooptical device, screen incorporating such a device and process for producing the screen, are provided. The device according to the present...
US-5,278,543 Transmitter with magnetic zero/span actuator
A transmitter for use in a process control system has externally accessible actuators for permitting external adjustment of the zero and span (or full scale)...
US-5,278,542 Multicolor display system
A multicolor display system comprised of a matrix of light-emitting diodes (LEDs). Each display dot or pixel is comprised of one red LED and one green LED. The...
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