Automatic filter control

Details Automatic filter control Automatic filter control

2011-07-12

2011-07-12

Tran, Pablo N (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

With particular receiver circuit

C455S213000, C455S232100, C455S307000, C455S343100, C455S574000

Reexamination Certificate

active

07979049

ABSTRACT:
A method and apparatus for controlling the power consumption of a receiver based on current operating conditions is described herein. A receiver according to the present invention applies a received signal to a variable filter. The received signal includes a desired in-band signal. Depending on the current operating conditions, the received signal may further include one or more unwanted out-of-band blocking signals. A filter controller controls one or more operating parameters of the variable filter to maintain the power ratio at the filter output of the power of the blocking signal(s) to the in-band signal at or below a desired level. In so doing, the present invention controls the receiver power consumption while still providing the desired receiver performance.

REFERENCES:
patent: 5646569 (1997-07-01), Bruhns et al.
patent: 5995853 (1999-11-01), Park
patent: 6026288 (2000-02-01), Bronner
patent: 6377630 (2002-04-01), Uchida
patent: 6512472 (2003-01-01), Smith et al.
patent: 6577258 (2003-06-01), Ruha et al.
patent: 6670901 (2003-12-01), Brueske et al.
patent: 6683492 (2004-01-01), Krishnapura et al.
patent: 6782062 (2004-08-01), Wieck
patent: 6876635 (2005-04-01), Bremer et al.
patent: 6894632 (2005-05-01), Robinson
patent: 7010330 (2006-03-01), Tsividis
patent: 7076231 (2006-07-01), Yamawaki et al.
patent: 7079825 (2006-07-01), Wieck
patent: 7130364 (2006-10-01), Sintonen
patent: 7209528 (2007-04-01), Prater
patent: 7212592 (2007-05-01), Drapkin et
patent: 7266361 (2007-09-01), Burdett
patent: 7486942 (2009-02-01), Sakurai
patent: 2002/0177446 (2002-11-01), Bugeja et al.
patent: 2004/0042572 (2004-03-01), Palaskas et al.
patent: 2005/0047534 (2005-03-01), Lindoff et al.
patent: 2006/0251186 (2006-11-01), Qian
patent: 2007/0035430 (2007-02-01), Schreier et al.
patent: 2007/0139238 (2007-06-01), Van Veldhoven
patent: 2007/0179734 (2007-08-01), Chmiel et al.
patent: 2008/0039042 (2008-02-01), Ciccarelli et al.
patent: 2008/0039047 (2008-02-01), Kubota
patent: 1363403 (2003-11-01), None
patent: 2007134201 (2007-11-01), None
Yoshizawa, A. and Tsividis, Y., “A Channel-Select Filter with Agile Blocker Detection and Adaptive Power Dissipation,” IEEE Journal of Solid-State Circuits, vol. 42, No. 5, May 2007, pp. 1090-1099.
Serra-Graells, F., et al., “A True-1-V 300—W CMOS-Subthreshold Log-Domain Hearing-Aid-On-Chip,” IEEEJournal of Solid-State Circuits, vol. 39, No. 8, Aug. 2004, pp. 1271-1281.
Yin, Q., et al., “A Translinear-Based RF RMS Detector for Embedded Test,” IEEE, ISCAS 2004, pp. 245-248.

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