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Patent # Description
US-5,574,500 Video quality evaluating equipment for reproduced image of video signal subject to digital compression
A sync controller 14 controls an amount of delay of a delay part 15 so that original video data entered from a video source 1 is synchronized with reproduced...
US-5,574,499 Integrated circuit for testing a plurality of 1H memories
An IC for processing video signals includes a test signal generator for producing a test signal PT synchronized with a horizontal synchronizing signal HS, a...
US-5,574,498 Target tracking system
In a target tracking system being capable of tracking a target object certainly, color change by illumination is absorbed through color judgment from R-Y and B-Y...
US-5,574,497 Multi-camera closed circuit television system for aircraft
The invention is a compact multi-camera closed circuit video television system for use in commercial aircraft. The arrangement of the cameras and the...
US-5,574,496 Techniques for minimizing co-channel interference in a received ATV signal
A technique for enhancing the robustness of an ATV transmission system in the presence of NTSC or ATV co-channel interference comprises positioning the ATV...
US-5,574,495 Cable television data path error analyzer located at the set-top terminal
A system for determining the quality of data received by settop terminals including at least one settop terminal which analyses each data packet received by the...
US-5,574,494 Method for automatically navigating a complex struture at an interactive user station
A user station for navigating a visual menu structure includes a processor in electrical communication with a memory and a presentation device. In operation, the...
US-5,574,493 Vacuum collection system for dye-ablation printing process
An ablated materials collection apparatus for a laser dye ablation printing process includes a set of walls to define a vacuum chamber open towards the platen...
US-5,574,492 Imaging method and semiconductor device manufacturing method using the same
A method of imaging a fine pattern having a group of lines extending along orthogonal first and second directions and a group of lines extending along a third...
US-5,574,491 Apparatus spot position control in an output device employing a linear array of light sources
In a method and apparatus for raster scanning optical output device, such as a laser printer or the like, an array of independently addressable light emitting...
US-5,574,490 Ink jet hard copy apparatus ink cartridge
A collapsible ink reservoir structure to facilitate assembly of a replaceable or refillable printer ink cartridge is comprised of a relatively rigid inner frame...
US-5,574,489 Ink cartridge system for ink-jet printer
The present invention is directed to a system that provides a replaceable cartridge for storing ink, in conjunction with a printer station for rapid and...
US-5,574,488 Liquid jet head, liquid jet head cartridge, and liquid jet apparatus
A liquid jet head for recording by discharging a liquid from discharge ports comprises an elemental base board having on it elements for generating discharge...
US-5,574,487 Substrate with an etched silicon compound film and an ink jet head utilizing the substrate
A substrate comprising a supporting member and a treated article provided on the supporting member comprising: 1) a patterned resistor layer; 2) a patterned...
US-5,574,486 Ink jet print heads and methos for preparing them
The present invention provides an ink jet print head capable of fast, efficient and consistent printing. Such ink jet print heads include an ink ejecting...
US-5,574,485 Ultrasonic liquid wiper for ink jet printhead maintenance
An ultrasonic liquid wiper for an ink jet printer maintenance station has a cleaning nozzle confrontingly aligned but spaced from printhead nozzles suspected of...
US-5,574,484 Level detection for ink cartridges of ink-jet printers
The level of ink present in an ink-supply cartridge of an ink-jet type printer is detected by a sensor that moves with the reciprocating pen carriage of the...
US-5,574,483 Display control unit and display control method thereof
A display control unit has a display data memory such as a video RAM for storing display data displayed in pixels of a display unit and has a control section for...
US-5,574,482 Method for data input on a touch-sensitive screen
A method of input programmed to operate on a representation of a keyboard appearing on a touch-sensitive screen in which letters are made temporarily available...
US-5,574,481 Detachable folding keyboard device
A detachable folding keyboard device includes a base frame unit consisted of a left base frame and a right base frame, a keyboard unit consisted of a left...
US-5,574,480 Computer pointing device
The present invention provides an improved computer pointing device such as a trackball or mouse, for example. The improved computer pointing device allows a...
US-5,574,479 Optical system for determining the roll orientation of a remote unit relative to a base unit
A system for determining the pointing orientation of a remote unit relative to a base unit. The fixed base unit comprises at least one light source for emitting...
US-5,574,478 VGA color system for personal computers
Modifications to a prior art system known as video graphics adapter (VGA) for displaying color images on a monitor attached to a personal computer. The...
US-5,574,477 Direct-vision/projection type liquid-crystal display
A single liquid-crystal display can be used to be either of direct-vision or projection type, if required. Separate display devices for monitor and OHP are not...
US-5,574,476 Data processing system and apparatus with graphic event priority levels for storage and retrieval of different...
A data processing apparatus with a receiver for receiving image data having a plurality of graphic events. A controller for controlling an image data storage...
US-5,574,475 Signal driver circuit for liquid crystal displays
The present invention relates to a signal driver circuit for driving a liquid crystal display panel. The signal driver circuit provides level shifting within the...
US-5,574,474 Liquid crystal driving circuit
In a liquid crystal driving circuit according to the present invention, a variable resistor is provided between each of power lines and an output terminal to...
US-5,574,473 Image display apparatus
An image display apparatus comprises an image display unit capable of generating and displaying a plurality of coherent point light source pairs, a light...
US-5,574,472 Simplified spacecraft antenna reflector for stowage in confined envelopes
A method for stowing a unitary flexible antenna reflector 10 in a confining envelope and deploying the reflector from the envelope. In a most general sense, the...
US-5,574,471 Electromagnetic energy shield
A structure for selectively transmitting electromagnetic energy over a selected frequency range during a first operating mode and for substantially preventing...
US-5,574,470 Radio frequency identification transponder apparatus and method
A transponder is formed of a very thin flexible substrate (10) on opposite sides of which are formed first (26) and second (31) series connected halves of a...
US-5,574,469 Locomotive collision avoidance method and system
A method and system are disclosed for improved collision avoidance of two locomotives by periodically receiving on each locomotive digitally encoded data to...
US-5,574,468 Phase-equivalent interferometer arrays
A method is described modifying initially linear or planar interferometer arrays such that the arrays can be placed in conformal installations. The method...
US-5,574,467 Doppler positioning using non-planar movement of transmitting source and receiving source
Methods and systems for determining a position and an orientation utilize a radio frequency signal transmitted from an effective source location which moves...
US-5,574,466 Method for wireless communication system planning
A method for wireless communication system planning includes, in a first embodiment, determining an image tree (500), based on a transmitter location (401) and...
US-5,574,465 Portable Astronomic/meteoric observation system
A natural environment observation system has a GPS for detecting the present location (address), a calendar for providing the present date and time, a memory for...
US-5,574,464 High-speed switching device for monostatic impulse radar
A switching device is provided which uses an array of high-speed photoconductive semiconductor switches laid out in a stripline configuration to achieve a...
US-5,574,463 Obstacle recognition system for a vehicle
A radar device emits a wave beam into a given angular range outside a vehicle, and scans the given angular range by the wave beam. The radar device detects a...
US-5,574,462 Proximity detonator
A proximity detonator which derives its firing criterion from reflected beam measurements and thus obtains information about the radial relative velocity of the...
US-5,574,461 Radar apparatus for connecting to a gun
A radar apparatus provided with a Cassegrain antenna to be mounted on the barrel of a gun. The Cassegrain antenna is of the polarization twist type with a flat...
US-5,574,460 Manual probe acquisition system
A probe acquisition and display system is disclosed featuring one simple trol for acquiring, tracking, and instantaneously locking for a missile control radar....
US-5,574,459 Device for the detection and characterizing of radar pulses
The device comprises an analog-digital converter coupled between a pulse receiver and a device to extract the continuous level of the signal given by the...
US-5,574,458 Automatic RF countermeasures dispensing module controller
Automatic countermeasures dispensing module controller for radio frequency countermeasures processes information generated by a missile approach detector and...
US-5,574,457 Switched capacitor gain stage
A switched capacitor gain stage (21) that samples an input voltage every clock cycle phase for effectively doubling the frequency of operation. The switched...
US-5,574,456 Signal processing method and apparatus therefor
A signal processing method includes steps for converting an input analog signal into a pulse width modulated signal, for converting the pulse width modulated...
US-5,574,455 Digital to analog converter and frequency synthesizer using the converter
A digital to analog converter which includes a delta-sigma modulator for transforming the lower n bits of an input digital signal of N bits by delta-sigma...
US-5,574,454 Digital phase-locked loop utilizing a high order sigma-delta modulator
A method and apparatus for phase locking to an input signal and outputting a sigma-delta modulated control signal. The method and apparatus of the present...
US-5,574,453 Digital audio recording apparatus
An audio signal recording device has an input terminal, a modulator for modulating an input signal, a detecting circuit for detecting whether an input signal...
US-5,574,452 Single bit bandpass analog-to-digital converter
A single bit bandpass analog-to-digital converter has an analog summer, an analog bandpass filter, a single bit quantizer, and a single bit digital-to-analog...
US-5,574,451 Digital circuit for the introduction of dither into an analog signal
An electronics circuit for digitizing an analog audio data signal into a ital equivalent signal and then introducing digitized nyquist dither data into the...
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