H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 7/08 (2006.01) H04N 7/00 (2006.01) H04N 11/24 (2006.01)
Patent
CA 2047399
Abstract of the Disclosure A multiplexed signal transmitting apparatus of this invention can transmit a first image signal, which is for a screen longer in the lateral direction than a screen obtained by a conventional television signal, by converting it to a signal that can be reproduced by a receiver of a conventional scheme. A first encoder limits the band of the first image signal to provide a first component, and compresses the first component in the vertical direction, thereby converting the first image signal to a second image signal corresponding to a first portion of the screen of the conventional television receiver on its vertically central panel. A second encoder compresses a second component, obtained by removing the first component from the first image signal, in the vertical direction, and encoding the frequency of the compressed second component to be a third image signal which can be multiplexed on second portions of the screen of the conventional television receiver on its upper and lower panels which are different from the first portion. A motion detector detects image motion data by using the second image signal, controls a constant of a coefficient multiplier based on the motion detection signal, and controls the level of the third image signal. A switch and an adder output the third image signal which is level-controlled to correspond to the upper and lower panels of the
Kawai Kiyoyuki
Yasuki Seijiro
Kabushiki Kaisha Toshiba
Kawai Kiyoyuki
Marks & Clerk
Nippon Television Network Corporation
Yasuki Seijiro
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