Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2007-09-11
2007-09-11
Fan, Chieh M. (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S148000, C375S346000
Reexamination Certificate
active
10221164
ABSTRACT:
In a user signal processing unit USP, adaptive array processing is performed for a reception signal vector X(t) from array antennas #1to #4. Based on an output signal y(t) of an adaptive array and a reference signal, an amount of frequency offset Δθ is estimated. A swap detecting unit SDP detects an occurrence of swap, based on the estimated amount of offset Δθ, frequency of error occurrence and the like.
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Notice of Ground of Rejection dated Jan. 10, 2006 of corresponding Japanese Application No. 2002-554997.
Masaoka Nobuhiro
Nakao Seigo
Fan Chieh M.
Perilla Jason M.
Sanyo Electric Co,. Ltd.
Westerman, Hattori, Daniels & Adrian , LLP.
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