Television – Two-way video and voice communication – User positioning
Patent
1994-09-27
1996-03-12
Kostak, Victor R.
Television
Two-way video and voice communication
User positioning
348 3, 348 12, 348 13, 455 51, 455 63, H04N 714, H04N 716
Patent
active
054990483
ABSTRACT:
A multi-video/audio system and a method of controlling the same. The system comprises a CPU for controlling the entire operation of the system, a card input/output unit for ascertaining a card identification number, a card private number and deposit balance of the user and issuing a service receipt for a charged service, a data modem for transmitting/receiving a modem signal of various data information to/from a data base connected to a cable television network, a network interface unit for performing an interfacing operation between the data modem and the cable television network, a television video/audio signal generation circuit for generating television video and audio signals of a selected channel in response to a high frequency signal, an audio signal amplifier for amplifying one of the television audio signal and a compact disk audio signal, a compact disk controller for exchanging a compact disk with another one and loading the exchanged compact disk, a compact disk video/audio signal generation circuit for generating a compact disk video signal and the compact disk audio signal, and a video signal switching circuit for selectively outputting the video signals from the television video/audio signal generation circuit and the compact disk video/audio signal generation circuit to a color monitor.
REFERENCES:
patent: 5089885 (1992-02-01), Clark
patent: 5247575 (1993-09-01), Sprague et al.
patent: 5285278 (1994-02-01), Holman
patent: 5319454 (1994-06-01), Schutte
Hyundai Electronics Industries Co,. Ltd.
Kostak Victor R.
Miller John W.
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