Code sequence generator

Details Code sequence generator Code sequence generator

1995-04-25

1997-01-21

Envall, Jr., Roy N.

Boots, shoes, and leggings

G06F 102

Patent

active

055965164

ABSTRACT:
A code sequence generator having a register for holding n-bit code, and a calculation circuit for performing matrix calculation on the content of the register, and sequentially generating a code sequence by feeding back the calculation results to the register. The matrix which is set in the calculation circuit is changed by selectively reading a matrix from a memory circuit that stores precalculated matrices. This makes it possible to set a desired register state in a short time even if the desired code sequence is very long, and to generate any code sequences without changing the rate of a clock signal.

REFERENCES:
patent: 3691472 (1972-09-01), Bohman
patent: 4685132 (1987-08-01), Bishop et al.
patent: 4847861 (1989-07-01), Hamatsu et al.
patent: 5434807 (1995-07-01), Yoshida
patent: 5444645 (1995-08-01), Yoshida et al.
patent: 5515307 (1996-05-01), Aiello et al.
IBM Technical Disclosure Bulletin, vol. 11, No. 4, Sep. 1968 Yorktown (US), pp. 393-394, Hsiao `Generating Pseudo Noise Sequences` p. 393, paragraph 1 and p. 394, line 1-last line.
Electronics Letters, vol. 4, No. 19, Sep. 20, 1968 Stevenage, pp. 417-419, M. Hughes `Transition-Matrix Construction For Pseudorandom Binary-Sequence Generators` p. 417, right col., line 1-line 42.

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