1
Terry A Welch: High speed data compression and decompression apparatus and method. Sperry Corporation, Howard P Terry, Albert B Cooper, December 10, 1985: US04558302 (293 worldwide citation)

A data compressor compresses an input stream of data character signals by storing in a string table strings of data character signals encountered in the input stream. The compressor searches the input stream to determine the longest match to a stored string. Each stored string comprises a prefix str ...


2
Willard L Eastman, Abraham Lempel, Jacob Ziv, Martin Cohn: Apparatus and method for compressing data signals and restoring the compressed data signals. Sperry Corporation, Howard P Terry, Albert B Cooper, August 7, 1984: US04464650 (228 worldwide citation)

A compressor parses the input data stream into segments where each segment comprises a prefix and the next symbol in the data stream following the prefix. The prefix of a segment is the longest match with a previously parsed segment of the data stream. The compressor constructs a search tree data ba ...


3
Parm L Narveson, Robert W Clark, Lawrence C Hannert: Color and brightness tracking in a cathode ray tube display system. Sperry Corporation, Howard P Terry, Albert B Cooper, May 31, 1983: US04386345 (191 worldwide citation)

A color cathode ray tube display apparatus particularly for use under a wide range of ambient light conditions, such as in an aircraft cockpit, wherein each of the primary color phosphors has a unique brightness versus cathode drive characteristic, which characteristic also is dependent upon whether ...


4
Brian R Larson: M Out of N code checker circuit. Sperry Corporation, William C Fuess, Kenneth T Grace, Marshall M Truex, February 5, 1985: US04498177 (137 worldwide citation)

An N bit input word is partitioned into parts, preferably N/3 parts of 3 bits each. Each part is counted in parallel for the number of binary ones contained therein in first stage parallel code generators, preferably in N/3 parallel berger code generators each producing on 2 binary encoded signal li ...


5
Robert E Swenson, Merlin L Hanson, Larry J Kelson: Cache/disk subsystem with file number for recovery of cached data. Sperry Corporation, Griffin Branigan & Butler, July 1, 1986: US04598357 (130 worldwide citation)

In a cache/disk sybsystem employing the post-store technique, each file is assigned a file number. The file number is an address in a directory on a disk, this address containing pointers to the physical disk space assigned to that file. During normal operation of the subsystem a device number and a ...


6
Leon Susman: Inhomogeneous dielectric dome antenna. Sperry Corporation, Howard P Terry, Seymour Levine, June 1, 1982: US04333082 (127 worldwide citation)

A dome antenna including a dome of solid dielectric material and scannable feed array positioned in the base plane thereof. The dielectric material of the dome constructed to provide a dielectric constant that varies with the perpendicular distance from the base plane. Rays emanating from the base p ...


7
Lawrence L Rainwater: Steerable directional antenna. Sperry Corporation, John B Sowell, Kenneth T Grace, Marshall M Truex, August 17, 1982: US04345256 (124 worldwide citation)

A steerable directional antenna assembly steerable about two perpendicular axes is disclosed. It comprises a directional horn antenna rotatably mounted on a horseshoe gimbal to rotate about a first axis. A curved wave guide feed is connected at one end to the feed portion of the directional antenna. ...


8
Robert J Currie, Glen D Rattlingourd, Billie M Spencer, John W Zscheile Jr: Apparatus for interleaving and de-interleaving data. Sperry Corporation, John B Sowell, Kenneth T Grace, Marshall M Truex, July 19, 1983: US04394642 (121 worldwide citation)

A novel interleaver-de-interleaver is provided which is adapted to store bits of a data stream after being error encoded. The data bits are stored in a random access memory in addresses identifiable by an array of columns and rows. The interleaver comprises address pointer means and logic for readin ...


9
Harry Miller, Parm L Narveson, William R Hancock, Joseph P Hsu: Aircraft flight instrument display system. Sperry Corporation, Howard P Terry, Albert B Cooper, January 27, 1981: US04247843 (113 worldwide citation)

Apparatus for providing an integrated display of flight instrument parameters on the screen of a single cathode ray tube is presented. The synthetically generated symbology provides the pilot with an integrated display of substantially all aircraft attitude and flight path command and control parame ...


10
John W Zscheile Jr: Matched filter spread spectrum code recovery apparatus. Sperry Corporation, John B Sowell, Kenneth T Grace, Marshall M Truex, November 29, 1983: US04418393 (112 worldwide citation)

Apparatus is provided for decreasing the acquisition time for recovering spread spectrum codes. The transmitted spread spectrum code is preceeded by a sync signal to establish system time at the receiver. The received coded data signals are applied to a matched filter or a delay line such as a surfa ...