Packet communication terminal having synchronized audio and curs

Details Packet communication terminal having synchronized audio and curs Packet communication terminal having synchronized audio and curs

1994-06-17

1996-06-11

Marcelo, Melvin

Multiplex communications

Wide area network

Packet switching

370 942, 345 2, 379202, H04J 326, H04M 342

Patent

active

055263542

ABSTRACT:
The present invention relates a communication terminal for the synchronization of audio and visual information within a communication system. Audio communication between the parties to a video conference is achieved by digitizing the speech and transmitting the same over a packet based data network. Each party to the conference can draw the attention of the other party to an object on the screen using a pointer controlled by, say, a mouse or ball. The co-ordinates of each parties' pointer are incorporated, via a multiplexer, into the data packets containing the digitized speech and transmitted to the other party's terminal thereby ensuring the synchronization the pointer information with the digitized speech.

REFERENCES:
patent: 4769833 (1988-09-01), Farleigh et al.
patent: 5392400 (1995-02-01), Berkowitz et al.
patent: 5408470 (1995-04-01), Rothrock et al.

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