Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2005-07-12
2005-07-12
Chin, Stephen (Department: 2634)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S140000, C375S147000, C375S149000
Reexamination Certificate
active
06917645
ABSTRACT:
A CDMA receiver for detecting a pilot channel signal having a known pseudo-random noise (PN) chip sequence, the known PN chip sequence comprising a plurality of known Logic 1 chips and a plurality of known Logic 0 chips. The CDMA receiver comprises: 1) a memory for storing the pilot channel signal as a first original sequence of chip samples; 2) a pseudo-signal generator for re-ordering selected ones of the first original sequence of chip samples to thereby generate a first re-ordered sequence of chip samples, wherein the pseudo-signal generator combines the original sequence of chip samples with the first re-ordered sequence of chip samples to thereby generate a first pseudo-signal sequence of combined chip samples; 3) a first matched filter for computing a first correlation value indicating a relative correlation between the first pseudo-signal sequence of combined chip samples and the known PN chip sequence; and 4) a decision circuit for determining from the first correlation value if the pilot channel signal has been detected.
REFERENCES:
patent: 6141374 (2000-10-01), Burns
patent: 6515980 (2003-02-01), Bottomley
patent: 2003/0067898 (2003-04-01), Challa et al.
Chin Stephen
File Erin M.
Samsung Electronics Co,. Ltd.
LandOfFree
Apparatus and method for detecting pilot channel signals... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for detecting pilot channel signals..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for detecting pilot channel signals... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3392547