Roy Brader Phones & Addresses
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407 Penwyn Rd, Wynnewood, PA 19096 (610) 896-7195
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Cape May, NJ
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Philadelphia, PA
Publications
Us Patents
Scrambler And Unscrambler For Serial Data
View pageUS Patent:
40876268, May 2, 1978
Filed:
Aug 4, 1976
Appl. No.:
5/711449
Inventors:
Roy Henry Brader - Philadelphia PA
Assignee:
RCA Corporation - New York NY
International Classification:
H04L 900
H04K 106
H04K 106
US Classification:
178 22
Abstract:
Serial data is scrambled at a transmitting terminal by storing it in sequential locations in a first random access memory, while previously stored information is read out of a second random access memory using a pseudo-random address counter. Whenever one memory is filled and the other memory is emptied, the roles of the memories are transposed. Similar apparatus at a receiving terminal is operated in synchronism and phase to unscramble the received data.