Sidetone level reduction circuit and method

Details Sidetone level reduction circuit and method Sidetone level reduction circuit and method

1996-09-03

1998-12-22

Wolfe, Willis R.

Telecommunications

Radiotelephone system

455553, 455570, 455307, H04B 110, H04B 162

Patent

active

058527745

ABSTRACT:
A sidetone level reduction circuit for reducing the sidetone level in digital cordless telephones incorporating continuously variable slope delta modulator/demodulator (CVSD) digital to analog technology is disclosed comprising a CVSD encoder for converting an analog voice signal to a digital signal, a CVSD decoder for converting a digital signal to an analog signal voice signal, and coupling means connecting the coincidence output of the CVSD encoder and the coincidence output of the CVSD decoder in a manner such that the coincidence output of the CVSD decoder can affect the CVSD encoder but the CVSD encoder cannot affect the CVSD decoder.

REFERENCES:
patent: 4450554 (1984-05-01), Steensma et al.
patent: 4646322 (1987-02-01), Flanagin et al.
patent: 4677656 (1987-06-01), Burke et al.
patent: 5315645 (1994-05-01), Matheny
patent: 5381475 (1995-01-01), Cavallo
patent: 5553137 (1996-09-01), Nyhart et al.

Affiliated with

Also associated with

Rating

Sidetone level reduction circuit and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sidetone level reduction circuit and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sidetone level reduction circuit and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2055834