Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...
Patent
1987-05-11
1988-11-15
Ng, Jin F.
Telephonic communications
Telephone line or system combined with diverse electrical...
Having transmission of a digital message signal over a...
379105, 358 85, 434307, 434350, H04M 1108, G09B 506, G09B 700
Patent
active
047854723
ABSTRACT:
A remote teaching system 2 includes a teacher station 4 and a plurality of student stations 6 which may be located at sites remote from one another. Each station 4, 6 includes a speaker telephone 122, 122' or other voice telephone set which is connectable to a telephone system 124 for voice communication among the various stations. Each station 4, 6 includes a video display monitor 14, 14' such as a television set and a video media player 16, 16' such as a video-tape cassette player connected to the video display monitor 14, 14'. Each student station 6 also includes a video-media-player controller 8', 22' which is connected to the video media player 16' of the student station 6 for controlling the playing of the player. The teacher station 4 includes a video-media-player master controller 8, 22 connected to the video media player 16 of the teacher station 4 for controlling the playing of the player. The video-media-player master controller 8, 22 of the teacher station 4 and the video-media-player controller 8', 22' of the student stations are connectable to the telephone system 124 for transmitting and receiving telephonic control signals over the telephone system, so that the playing of the video media player 16 of the teacher station 4 and the video media players 16' of the student stations 6 can be synchronized.
REFERENCES:
patent: 3077038 (1963-02-01), Williams et al.
patent: 3233346 (1966-02-01), Cornberg
patent: 3654708 (1972-04-01), Brudner
patent: 4682957 (1987-07-01), Young
patent: 4689022 (1987-08-01), Peers
David Scott, "Electronic Teacher Links Far-Flung Classrooms," Popular Science, Feb. 1982, p. 60.
Scott, "Electronic Teacher" Popular Science, Feb. 1982 p. 60.
Optel "Telewriter 11-PC Conferencing System" product brochure undated.
Chan Wing Fu
Ng Jin F.
The Trustees of the Stevens Institute of Technology
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