Clamping circuit for an RF receiver system

Details Clamping circuit for an RF receiver system Clamping circuit for an RF receiver system

2005-07-05

2005-07-05

Crosland, Donnie L. (Department: 2636)

Communications: electrical

Land vehicle alarms or indicators

Of burglary or unauthorized use

C340S539100, C340S870030, C340S007320, C455S222000, C455S296000, C375S232000, C375S346000

Reexamination Certificate

active

06914522

ABSTRACT:
A low power consumption RF receiver system that is adapted for receiving and shaping transmitted digital data signals into a digital data stream for processing by a microprocessor is provided. The receiver system comprises an integrated circuit, which includes a data slicer adapted to accept the received digital data signals, shape the signals into a digital data stream, and pass the digital data stream to the microprocessor. The integrated circuit further includes a peak detector adapted to sense ambient circuit noise when digital data signals are not present, develop a voltage reference signal representative of the peak value of the ambient circuit noise, and pass the voltage reference signal to the data slicer. The receiver system further includes a support circuit between the peak detector and the data slicer that has a voltage divider and a charge capacitor that is adapted to accept the voltage reference signal and produce a clamping reference for the data slicer thereby preventing the data slicer from responding to ambient circuit noise and passing false digital data streams to the microprocessor.

REFERENCES:
patent: 4318128 (1982-03-01), Sauvanet
patent: 4937842 (1990-06-01), Howell
patent: 5159340 (1992-10-01), Smith
patent: 5377054 (1994-12-01), Yamaguchi et al.
patent: 5744874 (1998-04-01), Yoshida et al.
patent: 5834854 (1998-11-01), Williams
patent: 6069499 (2000-05-01), Cho et al.
patent: 6151150 (2000-11-01), Kikuchi
patent: 6178516 (2001-01-01), Meade
patent: 6236850 (2001-05-01), Desai
patent: 6278864 (2001-08-01), Cummins et al.
patent: 6359348 (2002-03-01), King
patent: 6385238 (2002-05-01), Nguyen
patent: 6400040 (2002-06-01), Scudder et al.
patent: 6438184 (2002-08-01), Nayler
patent: 2003/0149349 (2003-08-01), Jensen
patent: 2004/0090281 (2004-05-01), Vilander
patent: 0 676 727 (1995-02-01), None
patent: 1 148 682 (2001-10-01), None
patent: 2 079 084 (1982-01-01), None

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