Spread spectrum rake receiver

Details Spread spectrum rake receiver Spread spectrum rake receiver

2006-12-19

2006-12-19

Deppe, Betsy L. (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S147000, C375S150000

Reexamination Certificate

active

07151792

ABSTRACT:
The present invention is provided with a path timing detection unit for detecting path timings of a multi-path; a de-spreading timing setting unit for setting the detected path timings as de-spreading timings, and also for setting as de-spreading timings two timings that are symmetric to the other path timing by setting a delay time between timings of two paths in accordance with respective combinations of two paths of the multi-path on a time axis, while setting a path timing of one path of the two paths as a center; a plurality of correlators for obtaining respective de-spread signals of the reception signals corresponding to the respective set timings; and a signal synthesis unit for synthesizing outputs of the plurality of correlators.

REFERENCES:
patent: 5812593 (1998-09-01), Kaku
patent: 6026115 (2000-02-01), Higashi et al.
patent: 6901105 (2005-05-01), Razzell
patent: 2003/0092447 (2003-05-01), Bottomley et al.
patent: 08-181636 (1996-07-01), None

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