Agile code generator

Details Agile code generator Agile code generator

1977-08-31

1979-02-27

Malzahn, David H.

Boots, shoes, and leggings

331 78, G06F 700

Patent

active

041422406

ABSTRACT:
The code generator of the present invention uses digital memories to replace the linear feedback shift registers of the prior art. Each memory contains the time ordered bit sequence for each of the component codes which in general, make up the overall, longer code. Since the entire bit sequences of the component codes are immediately available in the memories by appropriate addressing, the code generator can be initialized to an arbitrary, but defined code state within the response time of the memory element. As an additional benefit, at the option of the designer, the digital memory can be chosen to extract code segments, for example, 8 bits wide rather than single bits, and this parallel approach reduces code clocking speed through much of the code generator hardware, and/or may permit several code patterns for multichannel applications to be constructed using the same common memories.

REFERENCES:
patent: 3761696 (1973-09-01), Russell
patent: 3984668 (1976-10-01), Zotterberg et al.
patent: 4047008 (1977-09-01), Perkins
patent: 4058673 (1977-11-01), Johansson
Coekin et al., "The Generation of Pseudo-Random Binary Sequences for Testing very wide Band Systems", Electronic Instrumentation Conference, Hobart, Australia, May 17-19, 1972, pp. 173-179.

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