Digital filter for removing DC components

Details Digital filter for removing DC components Digital filter for removing DC components

1992-04-28

1993-05-11

Mai, Tan V.

Boots, shoes, and leggings

G06F 1531

Patent

active

052107094

ABSTRACT:
An offset reducer includes an adder for adding an input signal and an offset cancel signal to reduce an offset component of the input signal. A converter serves to measure a difference between a sum of past periods during which an output signal of the adder was positive and a sum of past periods during which the output signal of the adder was negative. The converter outputs an offset detection signal of a given value which depends on a sign of the measured difference when an absolute value of the measured difference exceeds a given difference. The converter initializes the measured difference to a given initial difference when the offset detection signal is outputted. An integrator serves to accumulate the offset detection signal outputted from the converter. The integrator generates the offset cancel signal in accordance with a result of the accumulating the offset detection signal. The output signal of the adder constitutes an offset-free signal corresponding to the input signal.

REFERENCES:
patent: 3982112 (1976-09-01), Schlereth
patent: 3997770 (1976-12-01), Claasen et al.
patent: 4034196 (1977-07-01), Butterweck et al.
patent: 4213187 (1980-07-01), Lawrence et al.
patent: 4215415 (1980-07-01), Kanemasa et al.
patent: 4236224 (1980-11-01), Chang
patent: 4321685 (1982-03-01), Kasupa et al.
patent: 4569030 (1986-02-01), Butterweck et al.
patent: 4823296 (1989-04-01), Millar

Affiliated with

Also associated with

Rating

Digital filter for removing DC components does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital filter for removing DC components, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital filter for removing DC components will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1356187