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

H - Electricity

04

N

350/33

H04N 7/12 (2006.01)

Patent

CA 1219333

RCA 80,132 ABSTRACT REDUCTION OF CONTROL BITS FOR ADAPTIVE SUB-NYQUIST ENCODER In a digital TV system the data rate is reduced by transmitting or recording only half of the sampled pixels. Steering or control bits are also transmitted that tell which of the transmitted samples can be utilized to give a best match to the untransmitted samples so the pixels represented by the later can be reconstructed. The steering or control bits are in effect repeated for subsequent omitted samples by being stored in a latch (153) unless the indicated match is no longer within a selected tolerance or threshold.

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