Title:
SECTIONAL DPCM SYSTEM
Document Type and Number:
Japanese Patent JP53046210
Kind Code:
A
Abstract:
PURPOSE: To improve the signal-to-quantized noise ratio by using the scale factor and to reduce the audio memory of the telephone automatic response unit and further to automate the guide broadcast to the place having comparatively low noise level.
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Inventors:
Arai, Yasuhiko
Application Number:
JP1976000121553
Publication Date:
April 25, 1978
Filing Date:
October 08, 1976
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H03M3/04; G01L1/06; G10L11/00; G10L19/00; H03M3/00; H04B1/66; H04B14/06; G01L1/00; G10L11/00; G10L19/00; H03M3/00; H04B1/66; H04B14/02; (IPC1-7): G01L1/06; H03K13/22; H04B1/66
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