Title:
固体撮像装置及び撮像装置
Document Type and Number:
Japanese Patent JP4931546
Kind Code:
B2
Abstract:
A solid-state image pickup device includes a pixel array including a plurality of pixels, each having a photoelectric converter; a signal conversion circuit converting a pixel signal from the pixel array into an output signal; and a clamp correction circuit correcting a clamp level included in a predetermined signal dealt with by the signal conversion circuit. The clamp correction circuit includes an analog-to-digital converter performing analog-to-digital conversion of the predetermined signal and generating and outputting N+M bits of digital data at the time of analog-to-digital conversion, N+M bits being obtained by adding M bits for correction to N bits assigned to the predetermined signal; a correction-value generating unit determining a correction value based on the N+M bits of digital data and a target value; and a computing unit performing a correction computation using the N+M bits of digital data and the correction value to generate N bits of clamp-corrected data.
Inventors:
Takamoto Masaru
Application Number:
JP2006288689A
Publication Date:
May 16, 2012
Filing Date:
October 24, 2006
Export Citation:
Assignee:
ソニー株式会社
International Classes:
H04N5/335; H01L27/146; H04N5/355; H04N5/357; H04N5/369; H04N5/374; H04N5/378
Domestic Patent References:
| JP64037179A | ||||
| JP9205587A | ||||
| JP2001189892A | ||||
| JP2006086971A |
Attorney, Agent or Firm:
Shinto International Patent Office