Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1986-06-04
1988-02-02
Ng, Jin F.
Facsimile and static presentation processing
Facsimile
Recording apparatus
35821316, H04N 516, H04N 5228
Patent
active
047231700
ABSTRACT:
To realize a camera with both an undisturbed scene recording and automatic adjustments which are periodically effected while using one and the same image sensor (1), this sensor is formed as a charge transfer device comprising a pick-up member (I), a storage member (S) and a shift register member (SR). To perform a black level setting (9, 11) in the scene picture signal an opaque strip (BS) is provided on the pick-up member (I). Automatic adjustments for, for example, lens focus (FC) and white balance (WB) in color recording are accurately performed when the image sensor, beyond a scene picture information integration period and a subsequent charge transfer period between pick-up member and storage member, is operative in an adjustment action information integration period and a subsequent charge transfer period so that a signal is obtained at the sensor output terminal (R,G,B) with sequentially the adjustment action information and the associated dark current information for a separate black level control circuit (10, 12). The adjustment action information can thereby be accurately determined for the relevant adjustment as the associated dark current information is automatically obtained.
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"The Frame-Transfer Sensor--An Attractive Alternative to the TV Camera Tube," Philips Technical Publication 150 (1985).
Brinich Stephen
Ng Jin F.
Schechter Marc D.
U.S. Philips Corporation
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