1
John A Propster, John H Rowan: Modular programmable signal processor. Hughes Aircraft Company, W J Adam, E F Oberheim, A W Karambelas, September 10, 1985: US04541048 (62 worldwide citation)

A signal processing system that has an improved modular architecture so that a selected number of arithmetic element (AE) units may be utilized with a single arithmetic element controller (AEC) unit to provide a system that can be readily expanded or decreased on computational ability. All of the AE ...


2
Don C Devendorf, Eugene Baskevitch: High speed latching comparator. Hughes Aircraft Company, W H MacAllister, W J Adam, December 2, 1980: US04237387 (26 worldwide citation)

A window comparator latch network is disclosed for track or sampling a differential input signal and for "latching" the input signal upon a clock signal. Several latch networks are disclosed for both single and dual differential input configurations. The dual input configuration includes first and s ...


3
Don C Devendorf, Eugene Baskevitch: Analog to digital converter utilizing a quantizer network. Hughes Aircraft Company, W H MacAllister, W J Adam, October 21, 1980: US04229729 (18 worldwide citation)

A quantizer network is disclosed for decoding an analog signal and providing a four-bit digital output. The analog input signal is divided or quantized into sixteen discrete voltage ranges and applied to sixteen differential amplifiers. Each amplifier has a different reference which must be exceeded ...


4
Robert Zwirn: Automatic level and gain control system. Hughes Aircraft Company, Leonard A Alkov, W H MacAllister, W J Adam, March 2, 1982: US04318129 (10 worldwide citation)

An automatic level and gain control system operable with a sensor to match the dynamic range of the display or other processing elements to the signal provided by the sensor for developing an image with improved dynamic range utilization (or contrast). Peak detection is provided with a conditional i ...


5
Norman E Moyer: Output circuit for a digital correlator. Hughes Aircraft Company, W J Adam, W H MacAllister, June 27, 1978: US04097844 (9 worldwide citation)

An analog output circuit for a digital correlator that may be completely integrated with the digital correlator on a single CMOS/LSI chip. The output circuit includes a compensating arrangement so that its output voltage is substantially unaffected by internal processing variables between different ...


6
Thomas C Cantwell Jr, Richard D Wilmot, Jack R Ballantyne: Adaptive zero mean system for controlling noise false alarm rate. Hughes Aircraft Company, W J Adam, W H MacAllister, A W Karambelas, November 23, 1982: US04360811 (9 worldwide citation)

A false alarm control processor that receives sampled input radar video data and provides an output signal having a zero mean value. The processor accumulates the sample video for a range sweep of range bins, then stores the value and resets a counter. The stored value is scaled to form an estimate ...


7
Paul R Prince: CTD charge subtraction transversal filter. Hughes Aircraft Company, W J Adam, W H MacAllister, March 25, 1980: US04195273 (7 worldwide citation)

A CTD (charge transfer device) transversal filter that utilizes displacement current charge substraction techniques to create positive displacement current charge summation for some electrodes and negative displacement current charge summation for other electrodes into and out of a common electrode ...


8
Robert L Bonebreak, David B Park, Philip R Tulloh: Automatic acquisition and tracking system. James K Haskell and W J Adam, February 23, 1971: US3566026 (7 worldwide citation)

A system that acquires and tracks an object designated by a light sensor placed over the object's image on a display monitor. The system includes a tracking sensor, such as a television camera, a video tracker and a tracking sensor stabilization unit. Sample and hold circuits are gated by an output ...


9
Francis W Kowalski, Richard D Wilmot: Infinite ratio clutter detecting system. Hughes Aircraft Company, W J Adam, W H Mac Allister, October 24, 1978: US04122450 (7 worldwide citation)

An automatic clutter detecting and mapping system in which the area being mapped is broken up into clutter mapping quantum areas with corresponding storage cells including reject codes for automatically rejecting clutter returns which may occur in intermittent or fading clutter occurring a small per ...


10
Paul R Prince: Low noise charge coupled device transversal filter. Hughes Aircraft Company, Robert M Wallace, W H MacAllister, W J Adam, November 4, 1980: US04232279 (4 worldwide citation)

A charge coupled device (CCD) transversal filter (TVF) having an improved electrode configuration and connecting arrangement which minimizes the noise that is added to the signal to provide a relatively high amplitude output signal and a relatively high output signal-to-noise ratio. The CCD transver ...