Title:
固体撮像装置
Document Type and Number:
Japanese Patent JP5893573
Kind Code:
B2
Abstract:
An image sensor comprises plural sets of a unit pixel outputting a pixel signal based on an electric charge generated through photoelectric conversion and a conversion unit converting the pixel signal into a digital signal. A reference signal source generates reference signals and supplies the generated reference signals to the conversion unit through signal lines. The conversion unit of each set comprises a comparator which compares the level of the reference signal with that of the pixel signal, a count circuit which counts a clock based on the comparison processing, a selection circuit which selects, among the signal lines, a signal line to be selectively connected to the input of the comparator, and a switch which selectively connects the selected signal line to the input of the comparator, and selectively connects a load to an unselected one of the signal lines.
Inventors:
Takashi Muto
Taiji Ikeda
Seiji Hashimoto
Yasushi Matsuno
Daisuke Yoshida
Taiji Ikeda
Seiji Hashimoto
Yasushi Matsuno
Daisuke Yoshida
Application Number:
JP2013005708A
Publication Date:
March 23, 2016
Filing Date:
January 16, 2013
Export Citation:
Assignee:
Canon Inc
International Classes:
H04N5/378; H04N5/374
Domestic Patent References:
| JP2006352597A |
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu