Method and apparatus for digital television error correction wit

Details Method and apparatus for digital television error correction wit Method and apparatus for digital television error correction wit

1980-12-29

1982-10-26

Masinick, Michael A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 36, 358167, 371 30, 375 26, H04N 544

Patent

active

043565077

ABSTRACT:
Method and apparatus for detecting and significantly correcting bit errors in a pulse code modulated television signal which recognizes the unique spectral characteristics of isolated bit errors in a digital bit stream, which generate spectral energy outside the frequency band of the video signal, and utilizes that energy to detect and correct errors without the use of overhead bits.

REFERENCES:
patent: 3721959 (1973-03-01), George
patent: 4291331 (1981-09-01), Devereux
patent: 4295221 (1981-10-01), Henoch
A Digital Television Error-Protection Scheme based on Waveform Estimates, BBC Research Report 1978/19, Croll, Jun. 1978, pp. 1-10.
Pulse Code Modulation of Video Signals: Subjective Effect of Random Digit Errors, V. G. Devereux, BBC Report 1972/14, May 1972, pp. 1-5.

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