Television – Camera – system and detail – Solid-state image sensor
Reexamination Certificate
2007-04-19
2009-12-15
Hannett, James M (Department: 2622)
Television
Camera, system and detail
Solid-state image sensor
Reexamination Certificate
active
07633540
ABSTRACT:
A pixel output time required for shielded pixels is realized by the smallest possible number of pixels. An apparatus includes: a plurality of pixels arranged in a first unshielded pixel region and a shielded second pixel region and having a photoelectric conversion unit for converting an optical signal into an electric signal; and a scanning unit for selectively scanning the plurality of pixels according to a pixel selection signal in synchronization with a clock signal. The scanning unit includes: a first scanning circuit for selectively scanning the plurality of pixels arranged in the first pixel region according to the pixel selection signal synchronous to the first clock signal; a second scanning circuit for selectively scanning the plurality of pixels arranged in the second pixel region according to the pixel selection signal synchronous to the second clock signal; and a clock speed reducing unit for outputting a clock signal obtained by reducing the speed of a frequency of the first clock signal as the second clock signal to the second scanning circuit.
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Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Hannett James M
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