Television – Bandwidth reduction system – Data rate reduction
Patent
1998-05-22
1999-09-14
Tung, Bryan
Television
Bandwidth reduction system
Data rate reduction
348384, 348415, H04N 732
Patent
active
059530642
ABSTRACT:
An image signal encoding system which is capable of correctly encoding an editing image signal before and after switching points of a first input dynamic image signal and a second input dynamic image signal. The image signal encoding system selects, as an editing image signal, one of the first and the second input dynamic image signals, each of which has serial image plane frames to encode the editing image signal. A switching signal is produced which is used to select as the editing image signal one of the first and second input dynamic image signals. An image encoder encodes the editing image signal, using spatial correlation, an initial image plane frame of the editing image signal after a switching time point of selection of the first and second input dynamic image signals. The image encoder encodes, using previous forecast in correlation between two successive image plane frames of the serial image plane frames, a final image plane frame before the switching time point of selection of the first and second input dynamic image signals.
REFERENCES:
patent: 5602592 (1997-02-01), Mori
Koga Toshio
Nozawa Yoshiaki
NEC Corporation
Tung Bryan
LandOfFree
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