System for receiving and decoding digital signals in accordance

Details System for receiving and decoding digital signals in accordance System for receiving and decoding digital signals in accordance

1994-06-30

1996-04-23

Kostak, Victor R.

Television

Basic receiver with additional function

Multimode

348558, H04N 546

Patent

active

055108482

ABSTRACT:
A system for receiving and decoding digital signals in accordance with two image definition levels. The system includes a transmission channel decoding sub-assembly; a source decoding sub-assembly for decoding signals of a higher definition level or signals of a lower definition level; a device for displaying the decoded signals available at the output of this sub-assembly; at a second output of the sub-assembly, a device for detecting errors during source decoding, followed, in series, by a decision circuit for controlling the switch in accordance with the output signal of said error detection device, as well as for controlling the change-over of the decoding sub-assembly from one of the two source decoding modes to the other.

REFERENCES:
patent: 4805020 (1989-02-01), Greenberg
patent: 5255097 (1993-10-01), Spiero et al.
patent: 5347318 (1994-09-01), Kobayashi et al.

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