Frank W Newdeck

age ~80

from Hernando, FL

Get Report

Also known as:

Connected to:

Digital Voice Compression Having A Digitally Controlled Agc Circuit And Means For Including The True Gain In The Compressed Data
view source
US Patent:

46113428, Sep 9, 1986
Filed:

Mar 1, 1983
Appl. No.:

6/471139
Inventors:

William J. Miller - N. Miami FL
Ran F. Chiu - Los Altos CA
Richard B. Joerger - Pembroke Pines FL
Frank W. Newdeck - Hatboro PA
Assignee:

Racal Data Communications Inc. - Miami FL
International Classification:

G10L 500
US Classification:

381 36
Abstract:

An apparatus for use in transmitting compressed digital voice data includes an analyzer for compressing digitized voice data according to an algorithm which produces a root mean square of the voice data. An analog to digital converter is used to convert analog voice signals to digital data as an input to the analyzer. An AGC circuit controls to analog voice signal to keep it within predetermined limits for digitization, with the AGC setting being determined by the root mean square of the digitized data. The digitized data includes data representative of the root mean square adjusted by the inverse of the change induced by the AGC. A speech synthesizer expands the digitized data at a remote location to convert it back to analog speech signals.