Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2005-07-26
2005-07-26
Phu, Phuong (Department: 2631)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S147000, C375S144000, C375S145000, C375S149000
Reexamination Certificate
active
06922433
ABSTRACT:
To provide a CDMA demodulation circuit and a CDMA demodulation method capable of maintaining good receiving characteristics even in a mobile communication environment. A fading pitch estimation portion estimates a time at which a level of a received input signal drops due to fading by monitoring fluctuation in the level provided by a rake combining portion. Before the level drops, a finger path assignment control portion controls assignment of path timing to a fingers portion performed by a finger path assignment portion.
REFERENCES:
patent: 5999560 (1999-12-01), Ono
patent: 6157687 (2000-12-01), Ono
patent: 6178193 (2001-01-01), Kondo
patent: 6272167 (2001-08-01), Ono
patent: 6456827 (2002-09-01), Kubo et al.
patent: 6795422 (2004-09-01), Ohsuge
patent: 6813309 (2004-11-01), Ogino
patent: 2003/0026233 (2003-02-01), Ohsuge
patent: 0 884 861 (1998-12-01), None
patent: 1 096 711 (2001-05-01), None
patent: 7-66760 (1995-03-01), None
patent: 10-271034 (1998-10-01), None
patent: 10-308689 (1998-11-01), None
patent: 11-4213 (1999-01-01), None
patent: 11220774 (1999-08-01), None
patent: 11-251962 (1999-09-01), None
patent: 11-261528 (1999-09-01), None
patent: 11-274982 (1999-10-01), None
patent: WO 00/02338 (2000-01-01), None
McGinn & Gibb PLLC
NEC Corporation
Phu Phuong
LandOfFree
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