Circuit for correcting distortions in a PCM transmission device

Details Circuit for correcting distortions in a PCM transmission device Circuit for correcting distortions in a PCM transmission device

1981-07-23

1984-02-07

Atkinson, Charles E.

Excavating

364723, 364853, 328151, G06F 15353

Patent

active

044307365

ABSTRACT:
In a circuit arrangement for the correction of falsified sample values in a PCM transmission system, which arrangement includes an interpolation member connected for deriving a corrected value to replace each falsified value by interpolation between sample values preceding and succeeding the falsified value in time, the interpolation member is provided with components connected for deriving each corrected value by effecting a weighted combination of the sample value appearing at the output of the interpolation member and preceding the falsified value in time and the next unfalsified sample value succeeding the falsified value in time in order to perform an at least approximately linear interpolation between sample values which are thus combined.

REFERENCES:
patent: 3544963 (1970-12-01), Tong
patent: 3629824 (1971-12-01), Bossen
patent: 4003020 (1977-01-01), Clarke
patent: 4054863 (1977-10-01), Goodman et al.
patent: 4146099 (1979-03-01), Matsushima et al.
patent: 4354243 (1982-10-01), Ryan et al.
patent: 4370643 (1983-01-01), Kitamura
patent: 4376290 (1983-03-01), Shirota
patent: 4376955 (1983-03-01), Reitmeier
Scratch-Free Stereo Playback, Electronics Weekly, Dec. 29, 1976/Jan. 5, 1977, pp. 2-3.
Technical Information, PCM-1 Audio Unit by Sony Corporation, 1978, pp. 31-45.
Iwamura et al., Journal of the Audio Engineering Society, Sep. 1973, vol. 21, No. 7, pp. 535-541.
IEEE Transactions on Magnetics, vol. 5, Sep. 1975, pp. 1230-1233.

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