Control circuit for a solid state imaging device which allows a

Details Control circuit for a solid state imaging device which allows a Control circuit for a solid state imaging device which allows a

1993-08-31

1995-06-06

Razavi, Michael T.

Television

Camera, system and detail

Solid-state image sensor

348297, 348317, H04N 5335

Patent

active

054226708

ABSTRACT:
A solid-state imaging device for imaging an object moving at a high speed using a solid-state image sensor having an electronic shutter function. A modulated horizontal synchronizing signal, modulated so as to have a frequency higher than the frequency of the normal horizontal synchronizing signal depending on the designated shutter speed, is supplied from a modulated synchronizing signal generator to a timing generator. The timing generator counts a predetermined number of the modulated horizontal synchronizing signal pulses since the timing of a vertical synchronizing signal to output a readout pulse at a more prompt timing than when the normal horizontal synchronizing signal pulses are counted. The readout pulse controls the function of the electronic shutter of the solid-state imaging device. This enables the CCD image sensor to perform imaging by a high-speed shutter operation.

REFERENCES:
patent: 4780764 (1988-10-01), Kinoshita et al.
patent: 4782394 (1988-11-01), Hieda et al.
patent: 4907089 (1990-03-01), Yamaguchi
patent: 5157502 (1992-10-01), Nakajima et al.

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