PCM signal demodulating circuit

Details PCM signal demodulating circuit PCM signal demodulating circuit

1985-08-22

1986-10-28

Grimm, Siegfried H.

Demodulators

Amplitude modulation demodulator

Having specific distortion, noise or other interference...

329104, 329122, 360 29, 375 34, 375 94, H03K 900, H04B 1404

Patent

active

046201580

ABSTRACT:
A PCM signal demodulating circuit in which a PCM signal corresponding to a code representative of a first sample value obtained by sampling an analog signal with a first sampling frequency is processed to obtain the first sample value, thereby to calculate a pseudo sample value equivalent to a second sample value obtained by sampling the analog signal at a second sampling frequency higher than the first sampling frequency. This is accomplished by passing the PCM signal through a digital filter, a digital-to-analog converter, and a low-pass filter connected in cascade.

REFERENCES:
patent: 4101964 (1978-07-01), Betts

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