Apparatus, method, and circuit for baseline loop analog...

Details Apparatus, method, and circuit for baseline loop analog... Apparatus, method, and circuit for baseline loop analog...

2007-08-20

2009-02-03

Mai, Lam T (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

C341S155000

Reexamination Certificate

active

07486215

ABSTRACT:
Apparatuses, methods, and circuits for analog signal adjustment (or baseline loop cancellation) are disclosed. In one embodiment, an apparatus for adjusting an analog input signal includes a first mixer for combining the analog input signal and an adjustment signal; an analog signal conditioning circuit that receives an output from the first mixer and provides a conditioned analog signal; an analog-to-digital converter (ADC) that converts the conditioned analog signal to a first digital signal; a first logic block that provides a correction signal and the adjustment signal; and a second mixer that combines the first digital signal and the correction signal, and provides a digital output signal.

REFERENCES:
patent: 5841814 (1998-11-01), Cupo
patent: 6381265 (2002-04-01), Hessel et al.
patent: 7079591 (2006-07-01), Fling et al.

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