1
Harper J Whitehouse, Robert W Means, Edwin H Wrench Jr, Jeffrey M Speiser, Allan G Weber: TV bandwidth reduction system using a hybrid discrete cosine DPCM. The United States of America represented by the Secretary of the Navy, Richard S Sciascia, Ervin F Johnston, John Stan, April 1, 1980: US04196448 (174 worldwide citation)

An image-compression system, wherein the image consists of a planar array of data points having various brightness levels, comprises a transmitter and a receiver. The transmitter comprises an analog-digital converter, for converting input analog data into digital data. The cosine transform is taken ...


2
John D Hightower, George R Beaman, George A Wilkins, Douglas W Murphy: Remote unmanned work system (RUWS) electromechanical cable system. The United States of America represented by the Secretary of the Navy, Richard S Sciascia, Ervin F Johnston, William T Skeer, March 8, 1977: US04010619 (105 worldwide citation)

A tethered underwater work system comprises a primary lift module attached o a support vehicle by means of a primary tether. A submarine work vehicle is removably attached to said primary lift module and connected thereto by means of a secondary tether. Additionally, the lift module contains electri ...


3
John M McCool, Bernard Widrow, James R Zeidler, Robert H Hearn, Douglas M Chabries: Adaptive line enhancer. The United States of America represented by the Secretary of the Navy, Richard S Sciascia, Ervin F Johnston, John Stan, December 9, 1980: US04238746 (98 worldwide citation)

An input signal X(j) is fed directly to the positive port of a summing function and is simultaneously fed through a parallel channel in which it is delayed, and passed through an adaptive linear transversal filter, the output being then subtracted from the instantaneous input signal X(j). The differ ...


4
John A Roese: Liquid crystal stereoscopic viewer. The United States of America represented by the Secretary of the Navy, Richard S Sciascia, Ervin F Johnston, Thomas Glenn Keough, May 3, 1977: US04021846 (95 worldwide citation)

An optical device, useful for three-dimensional stereo viewing not requir any mechanical shuttering, including two liquid crystal lenses, each comprising: (1) a thin layer of liquid crystal material, preferably nematic liquid crystal; (2) two plates of conductively-coated transparent material enclos ...


5
William H McKnight, Larry B Stotts, Michael A Monahan: Transmissive and reflective liquid crystal display. The United States of America represented by the Secretary of the Navy, Richard S Sciascia, Ervin F Johnston, Thomas Glenn Keough, February 9, 1982: US04315258 (85 worldwide citation)

A visual display has an increased readout capability due to its operation the transflective mode. A source of ambient light and light for radiation through the display from the backside together assure the increased readout capability. Heretofore, ambient light would degrade or washout a display mak ...


6
Hardayal Singh Gill: Read head with dual tunnel junction sensor. International Business Machines Corporation, Ervin F Johnston, Gray Cary Ware & Freidenrich, August 14, 2001: US06275363 (82 worldwide citation)

A dual tunnel junction sensor is provided which has an antiparallel (AP) coupled free layer structure which optimizes in-phase scattering of conduction electrons and response to signal fields. The sensor has a total number of ferromagnetic layers which assures that magnetic moments between the AP co ...


7
James M Alsup, Harper J Whitehouse: Discrete chirp frequency synthesizer. The United States of America represented by the Secretary of the Navy, Richard S Sciascia, Ervin F Johnston, John Stan, July 11, 1978: US04100498 (82 worldwide citation)

An automatic frequency-hop controller for a surface acoustic wave (SAW) shesizer is used with a means for generating two chirp signals, one having a delay with respect to the other. It comprises a SAW device, adapted to receive the chirp signals. The SAW device comprises a substrate and a pair of se ...


8
Donald G Bodnar, Jams W Cofer Jr: 360-Degree scanning antenna with cylindrical array of slotted waveguides. The United States of America represented by the Secretary of the Navy, Robert F Beers, Ervin F Johnston, Harvey Fendelman, July 3, 1984: US04458250 (79 worldwide citation)

A 360 degree scanning antenna is disclosed which includes a mechanism for anning the main beam of a cylindrical array in azimuth and over a limited angle in elevation in which a primary feedhorn illuminates a geodesic lens which in turn illuminates the cylindrical array structure. Energy is coupled ...


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Thomas Young Chang, Jyh Shuey Jerry Lo: Inverted merged MR head having plated notched first pole tip and self-aligned second pole tip. International Business Machines Corporation, Ervin F Johnston, August 21, 2001: US06278591 (69 worldwide citation)

A method makes an inverted merged MR head with a second pole tip which is self-aligned with a top first pole tip. After forming a bottom first pole tip layer, a top first pole tip is frame plated thereon with a width that defines a track width of the merged MR head. A photoresist layer, which is emp ...