Process and system for the compression of the flow rate of...

Details Process and system for the compression of the flow rate of... Process and system for the compression of the flow rate of...

H - Electricity

04

N

350/33

H04N 7/12 (2006.01) H04B 14/04 (2006.01) H04N 7/26 (2006.01) H04N 7/34 (2006.01)

Patent

CA 1210135

- 25 - ABSTRACT OF THE DISCLOSURE The process consists of coding in the transmitter the data to be transmitted by a differential coding device comprising a predictor, a quantizer, a transmitted data reconstruction device and a code allocator, decoding in the receiver the data received by a differential decoder comprising a code converter, a predictor and a transmitted data restoration device and adding pseudo-random data to each data to be transmitted at the transmitter in order to make the quantization levels of the quantizer fluctuate about a mean position. A digital filter is incorpo- rated in the receiver at the output of the trans- mitted data restoration device in order to elimi- nate granular unwanted noise, whilst respecting the contours of the transmitted picture.

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