Picture/audio signal transmission system

Details Picture/audio signal transmission system Picture/audio signal transmission system

1978-12-01

1981-02-17

Konick, Bernard

H04M 1100

Patent

active

042516919

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.

REFERENCES:
patent: 3226484 (1965-12-01), James
patent: 3587053 (1971-06-01), Horzepa et al.

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