1
Hartung Albert F, Lehan Frank W, Barooshian Charles T, Zacharski Edward J: Method and apparatus for scrambling and unscrambling communication signals. System Development Corporation, Fulwider Patton Rieber Lee & Utecht, November 11, 1975: US3919462 (155 worldwide citation)

Method and apparatus for scrambling and unscrambling television video and audio signals in a subscription television system in which program selections of subscribers are known at a central transmitting site, and control signals encoded into vertical blanking intervals of the video signals are addre ...


2
Thomas E Dechant, Edward L Glaser, Paul E Pitt, Frederick Way: Information storage and retrieval system. System Development Corporation, Christie Parker & Hale, May 12, 1981: US04267568 (120 worldwide citation)

Method and means using order of occurrence of entries and of events within entries for creating a data base and/or for finding a predetermined degree of match between the order of occurrence of events and entries in a request and a stored data base and/or for recreating an input in the original orde ...


3
Albert F Hartung, Frank W Lehan, Charles T Barooshian, Edward J Zacharski: Method and apparatus for scrambling and unscrambling communication signals. System Development Corporation, Fulwider Patton Rieber Lee & Utecht, August 30, 1977: US04045814 (104 worldwide citation)

Method and apparatus for scrambling and unscrambling television video and audio signals in a subscription television system in which program selections of subscribers are known at a central transmitting site, and control signals encoded into vertical blanking intervals of the video signals are addre ...


4
Albert F Hartung, Frank W Lehan, Charles T Barooshian, Edward J Zacharski: Method and apparatus for scrambling and unscrambling communication signals. System Development Corporation, Fulwider Patton Rieber Lee & Utecht, April 19, 1977: US04019201 (97 worldwide citation)

Method and apparatus for scrambling and unscrambling television video and audio signals in a subscription television system in which program selections of subscribers are known at a central transmitting site, and control signals encoded into vertical blanking intervals of the video signals are addre ...


5
Bertram Magenheim: Microwave ice detector. System Development Corporation, Fulwider Patton Rieber Lee & Utecht, October 18, 1977: US04054255 (53 worldwide citation)

A system for detecting ice on exterior surfaces of aircraft by transmitting a relatively low power microwave electromagnetic signal into a dielectric layer functioning as a surface waveguide, and monitoring the signals transmitted into and reflected from the waveguide. The waveguide includes a termi ...


6
Craig A Snow: System for compressed storage of 8-bit ASCII bytes using coded strings of 4 bit nibbles. System Development Corporation, Nathan Cass, Edmund M Chung, Kevin R Peterson, June 24, 1986: US04597057 (50 worldwide citation)

Standard ASCII coded text is divided into alpha, numeric, and punctuation tokens. Each token is converted to a string of four-bit nibbles. One nibble is coded to identify the type of token. Additional nibbles are coded to identify the location, if any, of a corresponding alpha or punctuation token i ...


7
Louis M Galie: Method and means for interrogating a layered data base. System Development Corporation, Christie Parker & Hale, December 20, 1983: US04422158 (41 worldwide citation)

A method using a digital data processing system and a query composed of entries locates entries in a stored multiple layer data base. The entries have one or more event types, and the entries of the data base include entries which have either an exact or an inexact match with entries of the query. T ...


8
Robert V Dickinson, Louis M Galie: Method and means using digital data processing means for locating representations in a stored textual data base. System Development Corporation, Christie Parker & Hale, January 22, 1985: US04495566 (31 worldwide citation)

The method uses digital data processing means and stored representations of a table of textual block identifiers for locating in a stored textual data base those textual blocks having the best match with a query. Textual block identifiers each provide an indication of a textual block in a stored dat ...


9
Robert S Bradshaw, S James Lazzarotti, Paul E Tartar, Richard D Hermes: Printer kit for letter sorting machines. System Development Corporation, Francis A Varallo, Kevin R Peterson, August 19, 1986: US04606660 (28 worldwide citation)

A printer system is configured as a kit for retrofitting the input consoles of existing letter sorting machines of the type used by the U.S. Postal Service. Such machines require that an operator, stationed at a console, enter sorting information for each mail piece, by way of a manually actuated ke ...


10
Paul E Pitt, Edward L Glaser, Louis M Galie: Data processing method and means for determining degree of match between two data arrays. System Development Corporation, Christie Parker & Hale, September 15, 1981: US04290115 (26 worldwide citation)

Method and means are disclosed for determining a particular criterion value and an associated positional value for a degree of match between the juxtaposition of a plurality of events of a query and a plurality of events of a stored data base entry. The method and means use a processing means having ...



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