Pulse or digital communications – Receivers – Automatic gain control
Reexamination Certificate
2007-04-24
2007-04-24
Bayard, Emmanuel (Department: 2611)
Pulse or digital communications
Receivers
Automatic gain control
C341S155000, C455S226100
Reexamination Certificate
active
09872271
ABSTRACT:
Disclosed is a sampling circuit for a receiver in a wireless communication device that eliminates the need for separate discrete filtering components that can be expensive and bulky. The system utilizes techniques for ensuring that system components do not become saturated by blocker signals as a result of the removal of the discrete filter. Further, active filters are used in place of the discrete filter only when a blocker signal is present to minimize power consumption. In addition, the dynamic range of a sampling circuit can be altered in the presence of a blocker signal to ensure that the baseband signal is adequately detected.
REFERENCES:
patent: 3699444 (1972-10-01), Ghose et al.
patent: 4192970 (1980-03-01), Kahn
patent: 5396189 (1995-03-01), Hays
patent: 5668552 (1997-09-01), Thurston
patent: 5872540 (1999-02-01), Casabona et al.
patent: 5930231 (1999-07-01), Miller et al.
patent: 6066980 (2000-05-01), Daribi
patent: 6111911 (2000-08-01), Sanderford et al.
patent: 6177906 (2001-01-01), Petrus
patent: 6225928 (2001-05-01), Green
patent: 6272226 (2001-08-01), Khan et al.
patent: 6369644 (2002-04-01), Yoshizawa
patent: 6393070 (2002-05-01), Reber
patent: 6466629 (2002-10-01), Isaksson et al.
patent: 6771707 (2004-08-01), Limberg
patent: 6775345 (2004-08-01), Song
patent: 6813319 (2004-11-01), Nagle et al.
patent: 6873205 (2005-03-01), Tsividis et al.
patent: 6937176 (2005-08-01), Freeman et al.
patent: 2001/0021939 (2001-09-01), Schollhorn
patent: 2003/0021367 (2003-01-01), Smith
patent: 2003/0112063 (2003-06-01), Kenington
“Delta Sigma Data Converters”, S. Norsworthy, R. Schreier, G. Temes,IEEE Press., 1997.
Bayard Emmanuel
Cochran William W.
Cochran Freund & Young LLC
National Semiconductor, Inc.
Williams Lawrence B.
LandOfFree
Over-sampling A/D converter with adjacent channel power... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Over-sampling A/D converter with adjacent channel power..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Over-sampling A/D converter with adjacent channel power... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3741964