Title:
SOLID-STATE IMAGE SENSOR AND CAMERA SYSTEM
Document Type and Number:
WIPO Patent Application WO/2013/058167
Kind Code:
A1
Abstract:
The present invention pertains to a solid-state image sensor and camera system that enable a solid-state image sensor and camera system, which are capable of achieving high image quality that provides low noise in low illumination without increasing an oversampling number, to be provided. The solid-state image sensor and camera system have: a pixel array unit in which pixels containing photodiodes, which convert optical signals into electrical signals, are arranged; and a reading unit that reads analog image signals from the pixels to a signal line, and processes the analog pixel signals that were read by column. The reading unit includes a ΔΣ modulator having a function for converting the analog image pixel signals into digital signals; and an amplifier which is positioned on the input side of the ΔΣ modulator, and amplifies the analog pixel signals read to the signal line by means of a gain to be set, and inputs the analog pixel signals to the ΔΣ modulator.
Inventors:
WAKABAYASHI HAYATO (JP)
UENO YOSUKE (JP)
UENO YOSUKE (JP)
Application Number:
PCT/JP2012/076351
Publication Date:
April 25, 2013
Filing Date:
October 11, 2012
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
H04N5/374; H01L27/146; H04N5/357
Foreign References:
| JP2004112077A | 2004-04-08 | |||
| JP2002158550A | 2002-05-31 | |||
| JP2011023966A | 2011-02-03 | |||
| JP2005323331A | 2005-11-17 | |||
| JP3904111B2 | 2007-04-11 |
Other References:
W. YAN: "An Integrated 800x600 CMOS Image System", ISSCC DIGEST OF TECHNICAL PAPERS, February 1999 (1999-02-01), pages 304 - 305
See also references of EP 2770732A4
See also references of EP 2770732A4
Attorney, Agent or Firm:
INAMOTO Yoshio et al. (JP)
Yoshio Inemoto (JP)
Yoshio Inemoto (JP)
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Claims: