DIGITAL TELEVISION SYSTEM WITH ERROR CORRECTION

DIGITAL TELEVISION SYSTEM WITH ERROR CORRECTION

A digital television processing system is provided which contains error correction capability, A digital processing section (23, 26, 31, 36, 37, 38, 45, 46, 51, 52) accepts first digital samples as input and produces modified digital samples (Yc) as output. These respective digital samples each cont...

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1. Verfasser: LEWIS, HENRY GARTON, JR
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRONIC CIRCUITRY
CODE CONVERSION IN GENERAL
CODING
DECODING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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creator LEWIS, HENRY GARTON, JR
description A digital television processing system is provided which contains error correction capability, A digital processing section (23, 26, 31, 36, 37, 38, 45, 46, 51, 52) accepts first digital samples as input and produces modified digital samples (Yc) as output. These respective digital samples each contain picture information. A processing stage (23, 45, 46) in the digital processing section, however, when supplied with selected input digital samples, produces digital output samples (Yp) subject to error. The modified picture information, derived from the output samples subject to error possibly contains erroneously modified picture information. A digital-to-analog converter (49, 50) accepts the modified (possibly erroneous) digital samples and produces an analog signal (Y min ) containing picture information subject to error. An error detector (70) is coupled to the digital processing stage for detecting the presence of the error. Correction means (48) are coupled to the digital-to-analog converter to change the analog signal upon detection of an error to a different analog signal such that the picture information is corrected for the effects of the error.
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These respective digital samples each contain picture information. A processing stage (23, 45, 46) in the digital processing section, however, when supplied with selected input digital samples, produces digital output samples (Yp) subject to error. The modified picture information, derived from the output samples subject to error possibly contains erroneously modified picture information. A digital-to-analog converter (49, 50) accepts the modified (possibly erroneous) digital samples and produces an analog signal (Y min ) containing picture information subject to error. An error detector (70) is coupled to the digital processing stage for detecting the presence of the error. 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subjects BASIC ELECTRONIC CIRCUITRY
CODE CONVERSION IN GENERAL
CODING
DECODING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
title DIGITAL TELEVISION SYSTEM WITH ERROR CORRECTION
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