Apparatus for integrally controlling audio and video signals in real time and multi-site communication control method
First Claim
1. An apparatus for integrally controlling in real time an audio signal and a video signal transmitted in real time, comprising:
- a separator for receiving a video signal and an audio signal synchronous with said video signal and separating the received signals into said audio and video signals;
a display unit for displaying said video signal;
a sound output unit for outputting a sound of said audio signal; and
a control means for processing and controlling the output state of said audio signal in accordance with said video signal, said processing and controlling being conducted before said outputting of said audio signal.
1 Assignment
0 Petitions
Accused Products
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.
157 Citations
25 Claims
-
1. An apparatus for integrally controlling in real time an audio signal and a video signal transmitted in real time, comprising:
-
a separator for receiving a video signal and an audio signal synchronous with said video signal and separating the received signals into said audio and video signals; a display unit for displaying said video signal; a sound output unit for outputting a sound of said audio signal; and a control means for processing and controlling the output state of said audio signal in accordance with said video signal, said processing and controlling being conducted before said outputting of said audio signal. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. An apparatus for integrally controlling an audio signal and a video signal in real time, comprising:
-
a separator for receiving a video signal and an audio signal synchronous with said video signal and separating the received signals into said audio and video signals; a display unit for displaying said video signal; a sound output unit for outputting a sound of said audio signal; a control means for controlling the output state of one of said audio and video signals in accordance with the other of said audio and video signals; a microphone; and an image pickup means; wherein a composite signal of said video signal and said audio signal synchronous with said video signal is received via a network interconnecting communication terminals at other sites, and said control means includes a correlation analyzing means for analyzing a correlation between said audio signal supplied from said network and said audio signal obtained from said microphone, and controls said display unit, said sound output unit, and said image pickup means, in accordance with an output from said correlation analyzing means. - View Dependent Claims (8, 9, 10)
-
- 11. A multi-site communication method for a multi-site communication system having a plurality of communication terminals at different sites interconnected by a communication network for transmitting an audio signal and a video signal between the communication terminals, wherein correlations between an audio signal generated at one communication terminal and audio signals generated at other communication terminals are analyzed, and a conversation partner of said one communication terminal is identified from said other communication terminals in accordance with a result of an analyzed correlation.
-
18. A communication terminal connected to a plurality of other communication terminals at different sites via a communication network for transmitting and receiving an audio signal and a video signal to and from the plurality of other communication terminals, comprising:
-
a correlation analyzing means for analyzing correlation between said audio signal to be transmitted to another communication terminal at another site and audio signals received from said other communication terminals at the different sites; and a conversation partner identifying means for identifying the another communication terminal of a conversation partner in accordance with an output of said correlation analyzing means. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
-
Specification