Image reception system

Details Image reception system Image reception system

1985-10-11

1990-01-23

Buczinski, Stephen C.

Cryptography

Cryptanalysis

380 20, 358349, H04N 7167

Patent

active

048963542

ABSTRACT:
An image reception system is disclosed, which includes a tuner for selecting one of broadcast channels of CATV, a video detector connected to the tuner for deriving output signals having video signals and command data of the selected channel, a data fetch circuit for extracting the command data and character data out of the output signals derived from the video detector, a display controller for controling video outputs to be displayed on a display screen, and a key pad for supplying the control command to the display controller. In this case, the display controller includes a character generator for generating character signals to be displayed on the display and masking circuit for superimposing masking signals on the video signal on request.

REFERENCES:
patent: 4245245 (1981-01-01), Matsumoto
patent: 4317213 (1982-02-01), DiLorenzo
patent: 4530008 (1985-07-01), McVoy
patent: 4536791 (1985-08-01), Campbell et al.
patent: 4599647 (1986-07-01), George et al.
patent: 4600921 (1986-07-01), Thomas
patent: 4605961 (1986-08-01), Frederiksen
patent: 4620229 (1986-10-01), Amano et al.
patent: 4685131 (1987-08-01), Horne

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