The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 29, 2011
Filed:
Jun. 28, 2007
Takahiro Muroshima, Kyoto, JP;
Yasuyuki Endoh, Hyogo, JP;
Takahiro Muroshima, Kyoto, JP;
Yasuyuki Endoh, Hyogo, JP;
Panasonic Corporation, Osaka, JP;
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 linesfor receiving signals from the plurality of pixels; sampling capacitors; circuitsfor comparing a voltage on a corresponding one of the vertical signal lineswith a reference voltage to determine whether the voltage on the corresponding vertical signal lineis higher or lower than the reference voltage; and clip circuitsfor outputting a clip voltage Vclip to a corresponding one of the sampling capacitorsbased on the output of a corresponding one of the circuits. 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.