Configurable multimode despreader for spread spectrum...

Details Configurable multimode despreader for spread spectrum... Configurable multimode despreader for spread spectrum...

2005-08-23

2005-08-23

Ha, Dac V. (Department: 2634)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S144000, C375S148000, C375S150000, C375S343000, C375S351000

Reexamination Certificate

active

06934319

ABSTRACT:
A configurable multimode despreader for spread spectrum applications is disclosed herein. The despreader includes a plurality of data lines, at least one selective coupler coupled to the plurality of data lines, at least one multiplier coupled to the selective coupler, and a code input line coupled to the multiplier. The selective coupler selectively couples one of the plurality of data lines with the multiplier per any one of a plurality of despreading protocols. The multiplier then multiplies a desired input data type received from the selective coupler with a despreading code chip received from the code input line to produce an observation. The programmable multimode despreader supports variable code and data modulation schemes and variable spreading factors.

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