Pulse or digital communications – Receivers
Reexamination Certificate
2008-06-17
2008-06-17
Tran, Khanh C. (Department: 2611)
Pulse or digital communications
Receivers
Reexamination Certificate
active
07388932
ABSTRACT:
An improved multi-channel demodulator is provided. The improved demodulator includes an automatic gain control, a data buffer and a demodulation engine. Data from various RF channels are processed by the automatic gain control in order to keep the data at their respective constant levels. Output from the automatic gain control is passed to the data buffer for storage. Corresponding data from a selected channel is then processed by the demodulation engine. The improved demodulator is able to operate in any one of three operating modes, namely, a data processing mode, a channel switching mode and a waiting mode. In the data processing mode, the demodulation engine processes the channel data that is currently loaded into the demodulation engine. In the channel switching mode, the demodulation engine stores the current channel data into the data buffer and retrieves and loads channel data from another channel for processing. In addition, status and history information relating to the current channel data is stored into a channel status memory and status and history information relating to the next channel to be processed is retrieved from the channel status memory. In one exemplary aspect, in order to reduce the channel switching time, status and history information relating to the next channel to be processed is preloaded during the previous data processing mode. In the waiting mode, the demodulation engine awaits further processing instructions to decide whether to enter into either the data processing mode or the channel switching mode.
REFERENCES:
patent: 6005855 (1999-12-01), Zehavi et al.
patent: 6038435 (2000-03-01), Zhang
patent: 6061406 (2000-05-01), Carson et al.
patent: 6122295 (2000-09-01), Kato et al.
patent: 6205133 (2001-03-01), Bexten
patent: 6466591 (2002-10-01), See et al.
patent: 6704372 (2004-03-01), Zhang et al.
patent: 6791995 (2004-09-01), Azenkot et al.
patent: 2001/0030940 (2001-10-01), Hellberg
patent: 2003/0131191 (2003-07-01), Zhang et al.
patent: 09-507618 (1997-07-01), None
patent: 2001-069020 (2003-03-01), None
patent: 2003-324776 (2003-11-01), None
patent: WO 95/12261 (1995-05-01), None
patent: WO 96/34480 (1996-10-01), None
English translation of Notice of Reasons for Rejection of Dec. 28, 2007 for Japanese application 2004-563171.
Kou Yu
Liu Bin-Fan
Radionov Vladimir
Stenerson Roger
Zhang Weimin
Broadlogic Network Technologies Inc.
Townsend and Townsend / and Crew LLP
Tran Khanh C.
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