Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2006-11-07
2006-11-07
Phu, Phuong (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S144000, C370S342000, C455S506000, C455S504000
Reexamination Certificate
active
07133436
ABSTRACT:
A path detection apparatus for use in a CDMA reception device includes: storage means for storing a delay profile; and path detection means for detecting a path by reading the delay profile from the storage means, and performing a rake-combining process based on the read delay profile. With the configuration, the path detection means includes: reference path detection means for detecting a reference path for detection of a probable path based on the delay profile read by the storage means; and detection means for detecting as a probable path in the rake-combining process a path existing in a path detecting time in which reception characteristic of the CDMA reception device can be improved from the detecting time of the reference path detected by the reference path detection means.
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Japanese Office Action dated May 17, 2005 (and English translation of relevant portion).
Araya Yasuteru
Maruyama Yuichi
Dickstein , Shapiro, LLP.
NEC Electronics Corporation
Phu Phuong
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