Still picture recording apparatus

Details Still picture recording apparatus Still picture recording apparatus

1989-08-11

1993-09-28

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Recording apparatus

300 351, H04N 576, H04N 5782

Patent

active

052490653

ABSTRACT:
The invention relates to a still picture recording apparatus for selecting and recording a desired screen of analog video signal as a still picture. The apparatus of the invention includes a still picture memory for storing digital signals for at least one screen, a delay memory for delaying a screen stored in the still picture memory by a time of a portion of one or plural screens, a change detecting circuit for detecting change in the screen by comparing the stored contents of the still picture memory and the delay memory and for detecting a large change in the screen, and a recording apparatus for recording the stored content of the still picture memory onto a recording medium, such as magnetic tape, when the screen is changed by a large amount, in response to the output of the screen change detecting circuit.

REFERENCES:
patent: 4131919 (1978-12-01), Lloyd et al.
patent: 4272787 (1981-06-01), Michael et al.
patent: 4403250 (1993-09-01), Kellar
patent: 4476996 (1988-05-01), Furuhata et al.
patent: 4691230 (1987-09-01), Kaneko et al.
patent: 4780756 (1988-10-01), Shiota et al.
patent: 4858029 (1989-08-01), Ookawa
patent: 4920423 (1990-04-01), Shiota
patent: 4924311 (1990-05-01), Ohki et al.

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