Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1986-06-23
1988-01-12
Lev, Robert
Facsimile and static presentation processing
Facsimile
Recording apparatus
358228, H04N 314
Patent
active
047195118
ABSTRACT:
A method for controlling the amount of the exposure of a television camera whereby a luminance signal from only a selected portion of an overall photometric range of the camera is employed for adjusting the exposure. A first signal is produced specifying the selected photometric range. In response to this signal, and further in response to horizontal and vertical synchronizing signals from the television camera in synchronization with the scanning of an electron beam in the camera, a range signal is produced when the scanning beam is within the specified photometric range. The luminance signal outputted by the television camera only at that time is employed for exposure control.
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Hirobe Hitoshi
Morita Hideo
Shin Takeharu
Asahi Kogaku Kogyo Kabushiki Kaisha
Lev Robert
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