Code generation apparatus

Details Code generation apparatus Code generation apparatus

2007-04-03

2010-12-21

Tarcza, Thomas H (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

With particular circuit

Digital processing

C342S070000, C342S159000, C342S175000, C375S130000, C375S135000, C375S242000, C375S295000

Reexamination Certificate

active

07855677

ABSTRACT:
The code generation apparatus includes: a clock generator which generates a clock signal of a first frequency; a timing controller which generates a timing signal of a second frequency lower than the first frequency; a code table storage in which a plurality of code sequences serving as a source for a pseudo-noise code is stored; an address controller which selects, according to the timing signal, a code sequence to be read, from among a plurality of code sequences; a partial code sequence extractor which extracts, as a partial code sequence, a code of a predetermined length, from the code sequence to be read; and a parallel-series convertor which outputs the partial code sequence one bit at a time, according to the clock signal.

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English language Abstract and partial translation of JP 7-321611 A.
English language Abstract of JP 2001-022636 A.
English language Abstract of JP 2001-024624 A.
English language Abstract of JP 7-086984 A.
English language partial translation of JP 2800808 B2.
English language Abstract of JP 10-145332 A.
U.S. Appl. No. 11/816,794 to Fukuda, filed Aug. 21, 2007.
U.S. Appl. No. 12/038,198 to Negoro et al, filed Feb. 27, 2008.

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