Image pickup apparatus including a solid-state imager having...

Details Image pickup apparatus including a solid-state imager having... Image pickup apparatus including a solid-state imager having...

2007-07-24

2007-07-24

Ye, Lin (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S262000, C348S323000

Reexamination Certificate

active

10465545

ABSTRACT:
A solid-state imager20outputs image signals corresponding to picture elements received from light-receptive areas thereof. A sample-and-hold circuit24performs a sample-and-hold operation for the image signals at prescribed times. A driving circuit22generates driving pulses and sample-and-hold pulses. A horizontal charge-transfer circuit of each light-receptive area is driven with the driving pulses, and the sample-and-hold circuit24is driven with the sample-and-hold pulses in synchronization with the driving pulses. The driving circuit22intermittently drives the horizontal charge-transfer circuit and the sample-and-hold circuit after the output of at least one of the first and last image signals. Consequently, noise that would be produced in picture elements located at the junctures between adjoining light-receptive areas can be reduced, and loss of image quality that would be caused by the effects of operations in subsequent processes performed in various circuits can be reduced.

REFERENCES:
patent: 5969759 (1999-10-01), Morimoto
patent: 6791615 (2004-09-01), Shiomi et al.
patent: 6829003 (2004-12-01), Takami
patent: 7027093 (2006-04-01), Miyahara
Y. Morinaka, et al., ITE Technical Report vol. 25, No. 3, pp. 7-11, the Institute of Image Information and Television Engineers, Jan. 2001. Partial Translation.
Kohji Mitani, et al., ITE Winter Annual Convention 2000, 4-1, p. 71, the Institute of Image Information and Television Engineers, 2000. Partial Translation.

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