Differential pulse code modulation coder
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United States of America Patent
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-
Apr 14, 1987
Grant Date -
N/A
app pub date -
Aug 19, 1985
filing date -
Sep 14, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A differential pulse code modulation coder has a pair of series connected arithmetic units connected to the input of a quantizer, with the output of the quantizer connected through a first multiplier to an input of the second arithmetic unit, and the output of the quantizer connected through an adder and further multiplier to the second input of the first arithmetic unit, the second input of said adder being derived from the output of said second multiplier, whereby greater internal calculation speed is realized.
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