H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/40
H04N 7/04 (2006.01) H04N 7/085 (2006.01)
Patent
CA 1134023
ABSTRACT OF THE DISCLOSURE PROCESS FOR THE TRANSMISSION OF AN AUDIOFREQUENCY ANALOG SIGNAL DURING LINE-FRAME SYNCHRONIZATION INTERVALS OF A TELEVISION SIGNAL AND APPARATUS FOR PERFORMING THIS PROCESS The transmissionprocess comprises a coding of the sound signal consisting of converting it into words of n bits at a frequency double the line frequency and during each synchronization pulse transmitting four words of n bits corresponding to different samples, which introduces a redundancy of two and a decorrelation between the different samples. The process involves a decoding operation consis- ting of comparing the two representations of the sample transmitted during the two synchronization pulses and selecting one representation for each. sample as a function of the result of the comparison.
336871
Kergosien Jean M.
Le Carvennec Francois
Goudreau Gage & Associates
Thomson-Csf
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