Fast adapting filter

Details Fast adapting filter Fast adapting filter

2003-03-04

2009-11-10

Le, Dinh T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

Unwanted signal suppression

C708S819000

Reexamination Certificate

active

07616052

ABSTRACT:
Adjustable gain circuits (AGCs) within serial filter stages are initialized to maximum gain. The output of each AGC is then sampled and converted to digital representation for use by control logic in setting the gain for the respective AGC. The gain adjustment decision for each AGC is performed in one shot, sequentially backwards from the last AGC, such that gain may be adapted simply and quickly within a number of cycles equal to the number of AGCs. Performance is enhanced by a fast-adapting cell in which capacitances are switched into the input path and feedback loop of an amplifier to reduce direct current gain within the transfer function through charge sharing dividing down the output voltage.

REFERENCES:
patent: 4441082 (1984-04-01), Haque
patent: 4768205 (1988-08-01), Nakayama
patent: 5293139 (1994-03-01), Polonen et al.
patent: 6073848 (2000-06-01), Giebel
patent: 6373907 (2002-04-01), Katsura et al.
patent: 6498927 (2002-12-01), Kang et al.
patent: 6791401 (2004-09-01), Miwa
patent: 7212798 (2007-05-01), Adams et al.

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