Television – Bandwidth reduction system – Data rate reduction
Patent
1995-04-04
1996-04-09
Tran, Thai Q.
Television
Bandwidth reduction system
Data rate reduction
348419, 381 30, 395 239, H04N 724
Patent
active
055066232
ABSTRACT:
A data transmission system, permits data transmission without failure while ensuring a substantially constant picture quality or audio quality irrespective of the source of data. The data transmission system transmits data after conversion thereof into digital data and compression of the same. In the system, the distortion in data to be transmitted is measured, and the quantization step size is controlled according to the measured distortion to hold the distortion constant, thus permitting data transmission while maintaining constant quality of the transmitted data irrespective of the data source kind.
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Kojima Yuichi
Sako Yoichiro
Sammut Charles P.
Sony Corporation
Tran Thai Q.
Tung Bryan S.
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