PCM encoder and decoder using exkrema

Details PCM encoder and decoder using exkrema PCM encoder and decoder using exkrema

1992-06-17

1994-03-29

Williams, Howard L.

Coded data generation or conversion

Analog to or from digital conversion

Detecting analog signal peak

341143, 341 76, H03M 100, H03M 300

Patent

active

052988996

ABSTRACT:
A separator provides peak value data and distance value data, a pair of registers respectively store multiple peak values and distance value data between peak values, a subsequent stage subtracts the series of multiple successive peak values to provide difference data, and divides the difference data by the distance value data to provide quotient data representative of a step size, and an interpolator provides a reproduced waveform by interpolating the peak value data and the quotient data.

REFERENCES:
patent: 4142066 (1979-02-01), Ahamed
patent: 4583237 (1986-04-01), Haskell
patent: 4807250 (1989-02-01), Tanaka
patent: 4852129 (1989-07-01), Schwartz
patent: 5084904 (1992-01-01), Daito
patent: 5231397 (1993-07-01), Ridkosil

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