Image capturing device

Details Image capturing device Image capturing device

2008-04-08

2008-04-08

Ometz, David (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S243000, C348S312000

Reexamination Certificate

active

10648772

ABSTRACT:
An image capturing device having a function of clamping an image signal. When the image capturing device is activated, a synchronous signal generating section begins creation of a horizontal synchronous signal, and a counter begins counting a pulse of the horizontal synchronous signal. When the counted value reaches a predetermined value, the clamping capability control section changes the level of a clamp mode signal to an H level. During a period from the start of power supply to the image capturing device to the raising of the level of a clamp mode signal to an H level, a clamp pulse generating section sets a longer width for a clamp pulse than in a normal operation so that a switch element of a clamping circuit remains in an on state in a longer period, whereby a smaller time constant for clamping is set. After elapse of a predetermined period, the switch element is controlled so as to remain in an ON state in a normal period, which is relatively short, whereby a larger time constant for clamping is set. With this arrangement, noise which would be caused with a small clamping time constant is suppressed.

REFERENCES:
patent: 6163342 (2000-12-01), Suzuki
patent: 6480228 (2002-11-01), Yoshihara et al.
patent: 6509928 (2003-01-01), Ogawa et al.
patent: 6580465 (2003-06-01), Sato
patent: 6700609 (2004-03-01), Abe
patent: 6783073 (2004-08-01), Yahagi et al.
patent: 7061531 (2006-06-01), Funakoshi et al.

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