Video communication system using a repeater to communicate to a

Details Video communication system using a repeater to communicate to a Video communication system using a repeater to communicate to a

1995-11-15

1998-07-07

Kuntz, Curtis A.

Television

Two-way video and voice communication

User positioning

348 17, H04N 714

Patent

active

057776644

ABSTRACT:
A video communication system includes a terminal unit for transmitting/receiving an information signal including video information, and a repeater to which a plurality of terminal units identical to the terminal unit can be connected. The repeater forms a transmission signal to be sent to a transmission line by frequency-multiplexing information signals respectively transmitted from the plurality of connected terminal units. The repeater also receives a transmission signal supplied from the transmission line and supplies a plurality of information signals frequency-multiplexed with the input transmission signal to a corresponding terminal unit. With this arrangement, an inexpensive, easy-to-use video communication system which suffers little deterioration in image quality and sound quality can be provided.

REFERENCES:
patent: 3889063 (1975-06-01), Slavin
patent: 4191969 (1980-03-01), Briand et al.
patent: 4910604 (1990-03-01), Takei et al.
patent: 4953159 (1990-08-01), Hayden et al.
patent: 5343240 (1994-08-01), Yu
patent: 5408261 (1995-04-01), Kamata et al.
patent: 5491508 (1996-02-01), Friedell et al.
patent: 5512937 (1996-04-01), Beierle
European Search Report dated Jul. 11, 1996.

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