Solid state image pick-up device

Details Solid state image pick-up device Solid state image pick-up device

1983-08-31

1986-03-04

Brown, Thomas W.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358166, H04N 312, H04N 514

Patent

active

045743096

ABSTRACT:
A solid state image pick-up device includes a number of picture elements arranged in a matrix form. Each picture element being constituted by a MOS transistor and a photodiode, gates of the MOS transistors arranged in the vertical direction are connected to respective horizontal scanning lines which are connected to outputs of a horizontal shift register. Drains of the MOS transistors arranged in a horizontal direction are connected to respective vertical scanning lines both ends of which are connected to first and second signal read-out lines via first and second vertical selection switches, respectively. In the case of effecting a shutter speed control, the first and second vertical shift registers produce first and second vertical scanning pulses which are shifted by a given time period corresponding to a desired shutter open time to scan each picture element twice during each frame period. In the case of effecting a vertical contour enhancement, the shutter speed is fixed to a field period and vertically adjacent picture elements are scanned simultaneously and image signals simultaneously derived on the first and second signal read-out lines are supplied to a differential amplifier to derive a difference therebetween which is then added to the image signal on the first signal read-out line.

REFERENCES:
patent: 3340356 (1967-09-01), James
patent: 4010319 (1977-03-01), Levine
patent: 4335405 (1982-06-01), Sakane et al.

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