Video/audio information transmission system

Details Video/audio information transmission system Video/audio information transmission system

1978-12-01

1988-03-29

Orsino, Jr., Joseph A.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

340706, 358903, 379 53, H04N 718

Patent

active

047347651

ABSTRACT:
A center-to-end type information service system utilizing the public telephone networks that are fundamental communication media of nation-wide scale is disclosed in which desired information is requested from the terminal side to the center by means of a telephone set or simplified keyboard and then delivered to and received by a TV receiver. A part of the center functions is transferred together with the exchange function to a subcenter located near the terminal. Thus, the length of transmission path connecting the center to terminals becomes shorter and the cost of the whole system can be cut down. A simplified character generator is provided in the subcenter, thereby diminishing traffic of the video network.

REFERENCES:
patent: 3500327 (1970-03-01), Belcher et al.
patent: 3654708 (1972-04-01), Brudner
patent: 3813485 (1974-05-01), Arps
patent: 3854004 (1974-12-01), Baumel et al.
patent: 4028733 (1977-06-01), Ulicki
patent: 4041463 (1977-08-01), Slutzky et al.
patent: 4115765 (1978-09-01), Hartke

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