Solid-state image sensor and driving method thereof, and...

Details Solid-state image sensor and driving method thereof, and... Solid-state image sensor and driving method thereof, and...

2007-06-28

2011-11-29

Aggarwal, Yogesh (Department: 2622)

Television

Camera, system and detail

Solid-state image sensor

C348S298000, C348S300000, C348S302000, C348S308000, C348S312000

Reexamination Certificate

active

08068155

ABSTRACT:
A solid-state image sensor includes: a plurality of pixels, each having a photodiode, a floating diffusion, a transfer transistor, a reset transistor, and an amplifying transistor; vertical signal lines31for receiving signals from the plurality of pixels; sampling capacitors62; circuits78for comparing a voltage on a corresponding one of the vertical signal lines31with a reference voltage to determine whether the voltage on the corresponding vertical signal line31is higher or lower than the reference voltage; and clip circuits79for outputting a clip voltage Vclip to a corresponding one of the sampling capacitors62based on the output of a corresponding one of the circuits78. A voltage on each vertical signal line in the state where the signal accumulated in a corresponding photodiode has been transferred to a corresponding floating diffusion, can be used as a comparison voltage of each column.

REFERENCES:
patent: 2004/0239786 (2004-12-01), Masuyama et al.
patent: 2006/0170794 (2006-08-01), Higuchi et al.
patent: 2006/0176519 (2006-08-01), Ouchi
patent: 2000-287131 (2000-10-01), None
patent: 2005-057612 (2005-03-01), None
patent: 2006-197229 (2006-07-01), None

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