Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2007-08-07
2007-08-07
Ghayour, Mohammed (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S148000, C375S149000, C370S342000, C370S345000
Reexamination Certificate
active
10043165
ABSTRACT:
In a path search method, all regions of a delay profile subject to peak detection are divided into a plurality of regions, and a control is performed so as to assign a searching frequency to each regions, which is higher the higher is the total peak power of the path existing in the region. A CDMA receiver in which this path search method is implemented has a region data separating section, which separates region data, a peak position detection section, which detects a peak position of each region, a region index calculation section, which establishes and manages the priorities of each region, and a region designating calculation section, which specifies a region for the region data separating section as a region having a high priority.
REFERENCES:
patent: 5392287 (1995-02-01), Tiedemann et al.
patent: 5710768 (1998-01-01), Ziv et al.
patent: 6363104 (2002-03-01), Bottomley
patent: 6370397 (2002-04-01), Popovic et al.
patent: 6498928 (2002-12-01), Hiramatsu
patent: 6628724 (2003-09-01), Bannasch et al.
patent: 6738438 (2004-05-01), Rick et al.
patent: 6771988 (2004-08-01), Matsuoka et al.
patent: 1154585 (2001-11-01), None
patent: 0 989 685 (2000-03-01), None
patent: 1 091 501 (2001-04-01), None
patent: 1 154 585 (2001-11-01), None
patent: 1 170 878 (2002-01-01), None
patent: 10-190522 (1998-07-01), None
patent: 11-317694 (1999-11-01), None
patent: 3031351 (2000-02-01), None
patent: 3031354 (2000-02-01), None
patent: 2000-115030 (2000-04-01), None
patent: 2000-134135 (2000-05-01), None
Okamoto, H.; Ichitsubo, S.; Yamaguchi, A.; Suwa, K.; Kawasaki, R.; “DS-CDMA signal transmission performance for delay profile model in microcellular systems”, Universal Personal Communications Record, Oct. 1997, IEEE, 6th International Conference, vol. 2, 12-16, pp. 347-351.
Hamada, H.; Nakamura, M.; Kubo, T.; Minowa, M.; Oishi, Y.; “Performance evaluation of the path search process for the W-CDMA system”, IEEE, May 1999, Vehicular Technology Conference, vol. 2, pp. 980-984.
Ghayour Mohammed
Ghulamali Qutub
LandOfFree
CDMA receiver performing a path search, path search method,... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with CDMA receiver performing a path search, path search method,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and CDMA receiver performing a path search, path search method,... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3885728