Invention Application
- Patent Title: IMAGE SENSING DEVICE AND IMAGING SYSTEM
- Patent Title (中): 图像感测装置和成像系统
-
Application No.: US12533446Application Date: 2009-07-31
-
Publication No.: US20100053396A1Publication Date: 2010-03-04
- Inventor: Akira Okita , Satoshi Suzuki , Takashi Matsuda
- Applicant: Akira Okita , Satoshi Suzuki , Takashi Matsuda
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Priority: JP2008-222794 20080829
- Main IPC: H04N5/335
- IPC: H04N5/335

Abstract:
An image sensing device comprises: a pixel array in which a plurality of pixels are arrayed; and a plurality of column amplification units that amplify a plurality of signals that are output in parallel from the pixel array, wherein each of the column amplification units includes: a differential amplifier including an amplification unit and a constant current circuit, the amplification unit amplifying a signal that is output from the pixels and outputting the signal to an output node, the constant current circuit being arranged between the amplification unit and a ground terminal and supplying a current to the amplification unit; and a clip unit that clips a voltage of the output node when the differential amplifier amplifies the signal and thereby clipping a voltage of a connection node connecting the amplification unit to the constant current circuit in the differential amplifier.
Public/Granted literature
- US08199235B2 Image sensing device and imaging system Public/Granted day:2012-06-12
Information query