Title:
SOLID-STATE IMAGING ELEMENT, ELECTRONIC DEVICE AND CONTROL METHOD FOR SOLID-STATE IMAGING ELEMENT
Document Type and Number:
WIPO Patent Application WO/2017/179319
Kind Code:
A1
Abstract:
The present invention prevents the occurrence of a black spot phenomenon in a differential amplification-type solid-state imaging element.
A signal-side amplification transistor supplies a signal current corresponding to one of a pair of differential input voltages from an output node to a common mode node to generate an output voltage corresponding to the signal current. A reference-side amplification transistor supplies a reference current corresponding to the other of the pair of differential input voltages to the common mode node. A constant current source controls the sum of the signal current and the reference current that join at the common mode node to be constant. A bypass control unit connects the output node and the common mode node if the output voltage reaches a predetermined limited voltage, and supplies the signal current having a value corresponding to the limited voltage to the common mode node.
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Inventors:
SATO MAMORU (JP)
KATO AKIHIKO (JP)
KATO AKIHIKO (JP)
Application Number:
PCT/JP2017/007397
Publication Date:
October 19, 2017
Filing Date:
February 27, 2017
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
H04N5/378; H01L27/146; H04N5/359; H04N5/374
Domestic Patent References:
| WO2012144181A1 | 2012-10-26 |
Foreign References:
| JP2008283557A | 2008-11-20 | |||
| JP2007104240A | 2007-04-19 | |||
| JP2010093698A | 2010-04-22 | |||
| JP2010141848A | 2010-06-24 | |||
| JP2007195033A | 2007-08-02 | |||
| JP2006238283A | 2006-09-07 |
Other References:
See also references of EP 3445042A4
Attorney, Agent or Firm:
MARUSHIMA, Toshikazu (JP)
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