Television – Receiver circuitry – Sound circuit
Patent
1994-11-04
1996-08-20
Metjahic, Safet
Television
Receiver circuitry
Sound circuit
348462, 348484, 348722, 348 15, H04N 560
Patent
active
055483461
ABSTRACT:
A real time visual communication system capable of improving a correspondence between a received video signal and a received audio signal in real time and improving reality. An AV signal is separated into a video signal and an audio signal, and the output state of the video or audio signal is controlled by the characteristics of the audio or video signal. For example, the sound field, reverberation, and the like are controlled in accordance with the characteristics of the video signal. A suitable image pickup unit is selected in accordance with the characteristics of the audio signal to make the sights of conversation participants coincide with each other. It is possible to reproduce sounds of audio signals well matching video signals and to provide visual communication having good reality because of the combination of matched audio and video signals.
REFERENCES:
patent: 4907082 (1990-03-01), Richards
patent: 4964162 (1990-10-01), McAdam
patent: 5389976 (1995-02-01), Miyagawa
Ikezawa Mitsuru
Kinoshita Taizo
Mimura Itaru
Sumino Shigeo
Suzuki Toshiaki
Hitachi , Ltd.
Hsia Sherrie
Metjahic Safet
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