Apparatus and method for detecting and compensating for an offse

Details Apparatus and method for detecting and compensating for an offse Apparatus and method for detecting and compensating for an offse

1997-12-05

2000-03-28

Young, Brian

Coded data generation or conversion

Analog to or from digital conversion

Nonlinear

341118, H03M 162

Patent

active

060437677

ABSTRACT:
Upon the power-on, a digital signal processing circuit supplies an AGC signal to an AGC amplifier to squelch it substantially, thereby prohibiting an analog signal from being input to an A/D converter 6 via a DC level setting circuit. In this state, a DC level that is set by the DC level setting circuit is A/D-converted by the A/D converter and a resulting value is input to the digital signal processing circuit. The digital signal processing circuit calculates and stores, as a DC offset value, a difference between the received DC level and the center value of the dynamic range of the A/D converter. In a stationary state, the AGC amplifier is caused to operate normally and the offset value is subtracted from data that is supplied from the A/D converter. Resulting data is output from an output terminal.

REFERENCES:
patent: 4972189 (1990-11-01), Polito et al.
patent: 4996529 (1991-02-01), Connell
patent: 4999628 (1991-03-01), Kakubo et al.
patent: 5177697 (1993-01-01), Schanen et al.
patent: 5194868 (1993-03-01), Bahng et al.
patent: 5329281 (1994-07-01), Baumgartner et al.
patent: 5343200 (1994-08-01), Matsui
patent: 5422643 (1995-06-01), Chu et al.
patent: 5721547 (1998-02-01), Longo

Affiliated with

Also associated with

Rating

Apparatus and method for detecting and compensating for an offse does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for detecting and compensating for an offse, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for detecting and compensating for an offse will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1329743