VOICE-EXCITED,BANDWIDTH REDUCTION SYSTEM EMPLOYING PITCH FREQUENCY PULSES GENERATED BY UNENCODED BASEBAND SIGNAL
United States Patent 3431362
US Patent References:
Band compression system
- - 3030450
Bandwidth reduction system
- - 3139487
Speech compression system
- - 3325596
Band compression system
- - 3030450
Bandwidth reduction system
- - 3139487
Speech compression system
- - 3325596
Inventors:
Miller, Ralph L.
Publication Date:
03/04/1969
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Assignee:
BELL TELEPHONE LABOR INC
Primary Class:
International Classes:
H04B1/66; H04B1/66; H04M1/00