Spread spectrum transmission apparatus, spread spectrum...

Details Spread spectrum transmission apparatus, spread spectrum... Spread spectrum transmission apparatus, spread spectrum...

2005-09-06

2005-09-06

Ghebretinsae, Temesghen (Department: 2637)

Pulse or digital communications

Spread spectrum

C375S146000, C375S147000, C375S239000, C332S112000, C329S313000

Reexamination Certificate

active

06940892

ABSTRACT:
A spread spectrum transmission apparatus includes, a chip clock generation section which outputs a chip clock in one frame formed of M+L−1 chips, a frame clock generation section which outputs a frame clock synchronized to frame occurrence timing, SS-PPM signal generation sections each of which inserts a pseudonoise code sequence corresponding to one period from some of M chips located at a head of a frame based on K-bit transmission data and generates an SS-PPM signal, delay sections which respectively delay N SS-PPM signals respectively by determined delay quantities, and a multiplexing section which adds up all of outputs respectively of the delay units and generates a multiplexed SS-PPM signal.

REFERENCES:
patent: 6041074 (2000-03-01), Nakamura
patent: 6205169 (2001-03-01), Nakamura
patent: 6728298 (2004-04-01), Okubo et al.
patent: HEI 4-113732 (1992-04-01), None

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