Title:
PIXEL CIRCUIT AND IMAGE SENSING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/010707
Kind Code:
A1
Abstract:
Provided is a pixel circuit, applied to an image sensing system. The pixel circuit is coupled to a first collection node and a second collection node, and the pixel circuit comprises: a first capacitor; a second capacitor; a first shutter switch coupled between the first capacitor and the first collection node; a second shutter switch coupled between the second capacitor and the second collection node; a third shutter switch coupled between the second capacitor and the first collection node; a fourth shutter switch coupled between the first capacitor and the second collection node; and a common-mode reset module coupled between the first capacitor and the second capacitor.
Inventors:
LO YEN-HUNG (CN)
YANG MENG-TA (CN)
YANG MENG-TA (CN)
Application Number:
PCT/CN2017/093023
Publication Date:
January 17, 2019
Filing Date:
July 14, 2017
Export Citation:
Assignee:
SHENZHEN GOODIX TECH CO LTD (CN)
International Classes:
G01S17/894; G09G3/3291; G01S7/4863; G01S17/89; G09G3/3258; H04N5/351
Foreign References:
| CN1658263A | 2005-08-24 | |||
| CN105681695A | 2016-06-15 | |||
| CN103562988A | 2014-02-05 | |||
| CN104575348A | 2015-04-29 | |||
| US20170053595A1 | 2017-02-23 |
Other References:
See also references of EP 3454550A4
Attorney, Agent or Firm:
SHANGHAI CHENHAO INTELLECTUAL PROPERTY LAW FIRM GENERAL PARTNERSHIP (CN)
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