High-speed difference pulse code modulation coder
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United States of America Patent
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Sep 10, 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
A high-speed difference pulse code modulation coder comprises a calculating unit for determining an estimated value, the calculating unit comprising a quantizer which is preceded by three subtractors and has a plurality of outputs for emitting various calculated values. The difference pulse code modulation signal is calculated in a plurality of consecutive steps by way of intermediate values for calculation of a difference pulse code modulation signal, only two calculating steps are required within one period of the pulse code modulation signal to be processed.
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