Digital DPCM-coder having a high processing speed
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United States of America Patent
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Aug 20, 1985
Grant Date -
N/A
app pub date -
Aug 16, 1983
filing date -
Sep 1, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In an improved digital DPCM-coder having a high calculating speed, a second quantizer is provided which is supplied with a DPCM-signal determined in a calculating loop, and which emits from its output a quantized DPCM-signal multiplied by a prediction factor. With the improved coder, one calculating operation less is required, and the coder can process a higher PCM-data rate at a constant calculating speed of the components.
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