Method system and computer program product for spread spectrum c

Details Method system and computer program product for spread spectrum c Method system and computer program product for spread spectrum c

1997-03-21

2000-08-08

Chin, Stephen

Pulse or digital communications

Spread spectrum

375201, 375202, 375203, 375206, 375272, 375303, 375334, 329300, 332100, H04B 1500, H04K 100, H04L 2730

Patent

active

061012130

ABSTRACT:
A method, system, and computer program product for spread spectrum communication is provided using circular waveform shift-keying (CWSK). Circular waveform shift-keying is a modulation technique for conveying data over a spread spectrum channel. Data symbols are encoded in a circular time shift and/or circular frequency shift of a spread spectrum waveform. In a receiver, a CWSK synchronization stage and demodulator stage can be combined on a single fast convolution ASIC chip. Using CWSK modulation and demodulation, a secure, low-cost terminal is realized that can process calls on multiple spread spectrum channels in a hubless wireless network linking large numbers of low data rate users.

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