Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Reexamination Certificate
2005-11-22
2005-11-22
Nguyen, Duc M. (Department: 2685)
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
C455S506000, C455S524000, C455S135000, C455S226200, C375S354000, C375S360000, C375S150000, C375S152000, C370S503000, C370S509000, C370S342000
Reexamination Certificate
active
06968197
ABSTRACT:
In mobile communication systems employing the CDMA method, the communication quality is acquired from the CDMA pilot channel. A communication quality acquisition apparatus comprises a delay profile acquisition unit comprising a control unit, synchronization unit and measurement unit, in addition to a data storage unit. The communication quality is measured by the synchronization unit and the measurement unit which are alternatively controlled by the control unit. When the communication quality is acquired through the CDMA pilot channel, the data acquisition efficiency can be significantly raised.
REFERENCES:
patent: 5084891 (1992-01-01), Ariyavisitakul et al.
patent: 5696762 (1997-12-01), Natali et al.
patent: 5812593 (1998-09-01), Kaku
patent: 6195343 (2001-02-01), Watanabe
patent: 6484034 (2002-11-01), Tsunehara et al.
patent: 6522625 (2003-02-01), Hayashi et al.
patent: 6549545 (2003-04-01), Yamamoto et al.
patent: 6571099 (2003-05-01), Kim et al.
patent: 6741667 (2004-05-01), Suda
patent: 6754255 (2004-06-01), Yano et al.
patent: 0 989 685 (2000-03-01), None
patent: 09-261126 (1997-10-01), None
patent: 09-270734 (1997-10-01), None
patent: 10-112673 (1998-04-01), None
patent: 11-284548 (1999-10-01), None
patent: 2000-078057 (2000-03-01), None
patent: 0164099 (1998-12-01), None
patent: WO 97/40398 (1997-10-01), None
“A Coherent Detection System with a Suppressed Pilot Channel for DS/CDMA Sustems”, Sadayuki Abeta, Seiichi Sampei and Norihiko Morinaga; Faculty of Engineering, Osaka University, Suita, Japan 565; 1996 Scripta Technica, Inc. Electronics and Communications in Japan, Part 1, vol. 79, No. 4, 1996 pp. 95-102.
DS/CDMA Coherent Detection System with a Suppressed Pilot Channel Sadayuki Abeta, Seiichi Sampei and Norihiko Morinaga 1994 IEEE.
Austrian Patent office Service and Information Sector (TRF) Search Report.
Official Notice of Rejection Case No.: DCMH110429 Patent Application No.: 2000-105484.
Imai Tetsuro
Ishikawa Yoshihiro
Iwamura Mikio
Mori Shinichi
Nguyen Duc M.
NTT DoCoMo Inc.
Workman Nydegger
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