Reduction of control bits for adaptive sub-nyquist encoder

Details Reduction of control bits for adaptive sub-nyquist encoder Reduction of control bits for adaptive sub-nyquist encoder

1983-08-15

1986-08-12

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 13, 358133, 358135, 358138, H04N 704, H04N 712

Patent

active

046059636

ABSTRACT:
A digital TV system reduces the data rate by transmitting or recording only bytes representing half of the sampled pixels. Steering bits are also transmitted that tell which of the transmitted bytes are the closest match to the untransmitted bytes so the pixels represented by the later can be reconstructed. The steering or control bits are repeated for subsequent omitted bytes unless it no longer indicates a match within a selected tolerance or threshold.

REFERENCES:
patent: 4141034 (1979-02-01), Netravali et al.
patent: 4323916 (1982-04-01), Dischert et al.
patent: 4531151 (1985-07-01), Hentschke

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