CN115707356A - Readout circuit, image sensor, related chip, and electronic device - Google Patents
Readout circuit, image sensor, related chip, and electronic device Download PDFInfo
- Publication number
- CN115707356A CN115707356A CN202180004875.7A CN202180004875A CN115707356A CN 115707356 A CN115707356 A CN 115707356A CN 202180004875 A CN202180004875 A CN 202180004875A CN 115707356 A CN115707356 A CN 115707356A
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- CN
- China
- Prior art keywords
- signal
- capacitor
- unit
- control unit
- input end
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
Abstract
The application discloses a reading circuit, which comprises a related double sampling unit, a signal control unit, a signal synchronization control unit and an address decoding unit. The correlated double sampling unit stores a first sensing voltage generated by the first pixel unit to the first capacitor in a first period, and stores a second sensing voltage generated by the first pixel unit to the second capacitor in a second period. The first input end and the second input end of the signal control unit are respectively coupled to the first capacitor and the second capacitor, the signal control unit outputs a first readout signal and a second readout signal according to the first address signal, the voltage of the first capacitor and the voltage of the second capacitor, and controls the electrical connection between the first input end and the second input end according to the sampling control signal. The signal synchronization control unit updates and generates a synchronous digital address signal and a valid indication signal according to the digital address signal and the sampling control signal. The address decoding unit generates an address signal according to the valid indication signal and the synchronous digital address signal.
Description
PCT国内申请，说明书已公开。PCT domestic application, specification has been published.
Claims (14)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2021/094765 WO2022241702A1 (en) | 2021-05-20 | 2021-05-20 | Readout circuit, image sensor, related chip, and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115707356A true CN115707356A (en) | 2023-02-17 |
Family
ID=84140144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202180004875.7A Pending CN115707356A (en) | 2021-05-20 | 2021-05-20 | Readout circuit, image sensor, related chip, and electronic device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115707356A (en) |
| WO (1) | WO2022241702A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030085402A1 (en) * | 2001-11-06 | 2003-05-08 | Tay Hiok Nam | CMOS image sensor with noise cancellation |
| JP2004165825A (en) * | 2002-11-11 | 2004-06-10 | Sony Corp | Solid-state imaging device and driving method thereof |
| JP2008199679A (en) * | 2008-05-19 | 2008-08-28 | Sony Corp | Semiconductor device control method |
| CN104251739A (en) * | 2013-06-25 | 2014-12-31 | 南京理工大学 | Single-capacitor correlated dual-sampling uncooled infrared reading circuit |
| CN108391071A (en) * | 2017-11-23 | 2018-08-10 | 南京邮电大学 | A kind of SPAD array class reading circuits using secondary Correlated Double Sampling |
| WO2021068156A1 (en) * | 2019-10-10 | 2021-04-15 | 深圳市汇顶科技股份有限公司 | Optical sensor, ranging system based on time of flight, and electronic apparatus |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008018718B4 (en) * | 2008-04-14 | 2010-02-25 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Optical distance meter and method for optical distance measurement |
| CN101478633B (en) * | 2008-12-26 | 2010-11-17 | 昆山锐芯微电子有限公司 | Analogue output combining circuit for CMOS image sensor, image sensor and electronic equipment |
| CN102221937A (en) * | 2010-04-15 | 2011-10-19 | 上海天派无线科技有限公司 | Real-time video image coordinate recognition system and method |
| WO2012028847A1 (en) * | 2010-09-03 | 2012-03-08 | Isis Innovation Limited | Image sensor |
| JP2015056878A (en) * | 2013-09-13 | 2015-03-23 | 株式会社東芝 | Solid-state imaging device |
| CN109005374B (en) * | 2018-09-13 | 2020-10-13 | 锐芯微电子股份有限公司 | Working method of image sensor pixel circuit |
-
2021
- 2021-05-20 WO PCT/CN2021/094765 patent/WO2022241702A1/en not_active Ceased
- 2021-05-20 CN CN202180004875.7A patent/CN115707356A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030085402A1 (en) * | 2001-11-06 | 2003-05-08 | Tay Hiok Nam | CMOS image sensor with noise cancellation |
| JP2004165825A (en) * | 2002-11-11 | 2004-06-10 | Sony Corp | Solid-state imaging device and driving method thereof |
| JP2008199679A (en) * | 2008-05-19 | 2008-08-28 | Sony Corp | Semiconductor device control method |
| CN104251739A (en) * | 2013-06-25 | 2014-12-31 | 南京理工大学 | Single-capacitor correlated dual-sampling uncooled infrared reading circuit |
| CN108391071A (en) * | 2017-11-23 | 2018-08-10 | 南京邮电大学 | A kind of SPAD array class reading circuits using secondary Correlated Double Sampling |
| WO2021068156A1 (en) * | 2019-10-10 | 2021-04-15 | 深圳市汇顶科技股份有限公司 | Optical sensor, ranging system based on time of flight, and electronic apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022241702A1 (en) | 2022-11-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230717 Address after: 51 Science Park Road, Aries Tower # 04-22, Singapore Applicant after: Huiding Technology Private Ltd. Address before: 17-00, No. 16, Goliath wharf, Raffles square, Singapore Applicant before: Dick Innovation Technology Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20250905 |
|
| AD01 | Patent right deemed abandoned |