Keyboard operated audio visual system

Details Keyboard operated audio visual system Keyboard operated audio visual system

1980-03-06

1983-05-17

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340384E, 340721, 340701, 360 722, 434307, G09G 300

Patent

active

043842844

ABSTRACT:
An audio visual system includes an audio cassette tape player, a central processor unit, a TV screen for displaying a desired pattern in accordance with a data derived from the audio cassette tape player, and a speaker system for providing audio announcement in accordance with information derived from the audio cassette tape player. The audio visual system displays a problem and five typical answers thereto. The student introduces his answer through a keyboard unit. When, for example, an answer key 3 is actuated, the audio visual system drives the audio cassette tape player to locate a commentary suited for response to the actuation of the answer key 3 whereby the commentary associated with answer key 3 is displayed and announced.

REFERENCES:
patent: 3371933 (1968-03-01), Weitzner
patent: 3751825 (1973-08-01), Barrett
patent: 4005530 (1977-02-01), Takahashi et al.
patent: 4052798 (1977-10-01), Tomita et al.
patent: 4142232 (1979-02-01), Harvey
patent: 4160242 (1979-07-01), Fowler et al.
patent: 4175267 (1979-11-01), Tachi
patent: 4237498 (1980-12-01), van Eijck et al.
patent: 4287539 (1981-09-01), Bixby et al.

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