RF receiver AGC incorporating time domain equalizer circuity

Details RF receiver AGC incorporating time domain equalizer circuity RF receiver AGC incorporating time domain equalizer circuity

1992-03-04

1996-04-16

Chin, Stephen

Pulse or digital communications

Equalizers

Automatic

375345, H03H 730, H03H 740, H03K 5159

Patent

active

055090303

ABSTRACT:
Feedback signals for use in controlling a variable gain amplifier portion of a radio receiver are obtained from existing automatic gain control signals comprising a part of a time domain equalizer section of a receiver such that bandpass filtering and feedback signal detecting circuitry, along with detector circuitry linearization apparatus required in prior art feedback schemes, can be eliminated from the overall scheme. The resulting apparatus provides a constant level to the input of the incorporated analog-to-digital converter and the resultant loop adapts to changing RF/baseband bandwidths.

REFERENCES:
patent: 4665519 (1987-05-01), Kirchner et al.
patent: 4775988 (1988-10-01), Chevillat et al.
patent: 5142695 (1992-08-01), Roberts et al.

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