Integrated circuit for code acquisition

Pulse or digital communications – Spread spectrum – Direct sequence

Reexamination Certificate

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C375S213000

Reexamination Certificate

active

06845124

ABSTRACT:
A semiconductor integrated circuit for processing a plurality of received broadcast signals, such as GPS signals, is operable in two modes: acquisition and tracking. In an acquisition mode, a separate acquisition engine is used which includes a sample reducer for combining samples of a received signal for correlation with a locally generated version of a GPS code. A serial to parallel converter converts the reduced samples to parallel words which are correlated in parallel with locally generated words of the GPS code.

REFERENCES:
patent: 5144641 (1992-09-01), Akazawa et al.
patent: 5420593 (1995-05-01), Niles
patent: 5467367 (1995-11-01), Izumi et al.
patent: 5856997 (1999-01-01), Mochizuki et al.
patent: 5914933 (1999-06-01), Cimini et al.
patent: 5966411 (1999-10-01), Struhsaker
patent: 5999561 (1999-12-01), Naden et al.
patent: 6041074 (2000-03-01), Nakamura
patent: 6201843 (2001-03-01), Kingston et al.
patent: 6289041 (2001-09-01), Krasner
patent: 6775319 (2004-08-01), King et al.
patent: 20020012387 (2002-01-01), Shakeri et al.
patent: 0 563 020 (1993-09-01), None
patent: 0 880 238 (1998-11-01), None
patent: 2 364 487 (2002-01-01), None
patent: WO 0135525 (2001-05-01), None
Wendt, P., “Nonrecursive and Recursive Stack Filters and their Filtering Behavior,”IEEE Transactions on Acoustics, Speech and Signal Processing 38(12):2099-2107, Dec. 1990.

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