Communications: electrical – Systems – Portable self-contained
Patent
1975-02-21
1978-03-28
Trafton, David L.
Communications: electrical
Systems
Portable self-contained
358192, G06K 1520
Patent
active
040817970
ABSTRACT:
An on-screen television display including means internally of the receiver for generating characters to indicate the channel number, time of day or other data. The system includes circuit means responsive to the horizontal and vertical sync signals of a television receiver for positioning and timing of the display. BCD data is coupled to a character generator, and the output of the character generator is then multiplexed with positioning and timing signals. The multiplexed output is coupled to a video interface which supplies the video signal to the cathode ray tube.
REFERENCES:
patent: 3345458 (1967-10-01), Cole et al.
patent: 3528068 (1970-09-01), Johnson
patent: 3532806 (1970-10-01), Wicklund
patent: 3573787 (1971-04-01), Sandgren et al.
patent: 3582936 (1971-06-01), Kite
patent: 3609743 (1971-09-01), Lasoff et al.
patent: 3701988 (1972-10-01), Allaart
patent: 3714663 (1973-01-01), Smith
patent: 3786481 (1974-01-01), Hartman
patent: 3812487 (1974-05-01), Burton
patent: 3821731 (1974-06-01), Levine
Doyle et al., TV Receiver Tuning Systems of the Future, IEEE Vol. BTR-15 No. 2, July 1969, pp. 200-222.
Heath Company
Kaliko J. J.
McMahon K.
Sherman W. R.
Trafton David L.
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