WO2000078034A3 - Dual sensitivity image sensor - Google Patents

Dual sensitivity image sensor Download PDF

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Publication number
WO2000078034A3
WO2000078034A3 PCT/US2000/016633 US0016633W WO0078034A3 WO 2000078034 A3 WO2000078034 A3 WO 2000078034A3 US 0016633 W US0016633 W US 0016633W WO 0078034 A3 WO0078034 A3 WO 0078034A3
Authority
WO
WIPO (PCT)
Prior art keywords
photogate
floating diffusion
image sensor
signal
column
Prior art date
Application number
PCT/US2000/016633
Other languages
French (fr)
Other versions
WO2000078034A2 (en
Inventor
Sandor Barna
Yibing Michelle Wang
Original Assignee
Photobit Corp
Sandor Barna
Yibing Michelle Wang
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Photobit Corp, Sandor Barna, Yibing Michelle Wang filed Critical Photobit Corp
Priority to AU54943/00A priority Critical patent/AU5494300A/en
Publication of WO2000078034A2 publication Critical patent/WO2000078034A2/en
Publication of WO2000078034A3 publication Critical patent/WO2000078034A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/50—Control of the SSIS exposure
    • H04N25/57—Control of the dynamic range
    • H04N25/58—Control of the dynamic range involving two or more exposures
    • H04N25/581—Control of the dynamic range involving two or more exposures acquired simultaneously
    • H04N25/583—Control of the dynamic range involving two or more exposures acquired simultaneously with different integration times
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
    • H04N25/616—Noise processing, e.g. detecting, correcting, reducing or removing noise involving a correlated sampling function, e.g. correlated double sampling [CDS] or triple sampling
    • 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
    • H04N25/76—Addressed sensors, e.g. MOS or CMOS sensors
    • H04N25/77—Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components

Abstract

A system of taking images of different sensitivities at the same time uses both an image sensor, and an auxiliary part to the image sensor. The image sensor element can be a photogate, and the auxiliary part can be the floating diffusion associated with the photogate. Both the photogate and the floating diffusion accumulate charge. Both are sampled at different times. The floating diffusion provides a lower sensitivity amount of charge than the photogate itself. The system can have a photogate and floating diffusion in each pixel along with a select transistor, a reset transistor, and a follower transistor. All of this circuity can be formed of CMOS for example. The system can also operate in a column/parallel mode, where each column of the photo sensor array can have a column signal processor which samples and holds the reset signal, the floating diffusion signal and the photogate signal.
PCT/US2000/016633 1999-06-15 2000-06-15 Dual sensitivity image sensor WO2000078034A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU54943/00A AU5494300A (en) 1999-06-15 2000-06-15 Dual sensitivity image sensor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13934599P 1999-06-15 1999-06-15
US60/139,345 1999-06-15

Publications (2)

Publication Number Publication Date
WO2000078034A2 WO2000078034A2 (en) 2000-12-21
WO2000078034A3 true WO2000078034A3 (en) 2001-05-10

Family

ID=22486185

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/016633 WO2000078034A2 (en) 1999-06-15 2000-06-15 Dual sensitivity image sensor

Country Status (2)

Country Link
AU (1) AU5494300A (en)
WO (1) WO2000078034A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6307195B1 (en) * 1999-10-26 2001-10-23 Eastman Kodak Company Variable collection of blooming charge to extend dynamic range
US7105793B2 (en) 2003-07-02 2006-09-12 Micron Technology, Inc. CMOS pixels for ALC and CDS and methods of forming the same
US7332703B2 (en) 2004-03-22 2008-02-19 Micron Technology, Inc. Imaging structure including a pixel with multiple signal readout circuits and methods of operation for imaging structure
JP4459064B2 (en) * 2005-01-14 2010-04-28 キヤノン株式会社 Solid-state imaging device, control method thereof, and camera
DE102007045448A1 (en) * 2007-09-24 2009-04-02 Arnold & Richter Cine Technik Gmbh & Co. Betriebs Kg image sensor
KR20180079519A (en) 2016-12-30 2018-07-11 삼성전자주식회사 Image sensor

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5471515A (en) * 1994-01-28 1995-11-28 California Institute Of Technology Active pixel sensor with intra-pixel charge transfer
US5600451A (en) * 1993-08-12 1997-02-04 Sony Corporation Charge transfer device and output circuit thereof
US5737016A (en) * 1985-11-15 1998-04-07 Canon Kabushiki Kaisha Solid state image pickup apparatus for reducing noise
US5886343A (en) * 1993-05-28 1999-03-23 Canon Kabushiki Kaisha Image sensor comprising a two-dimensional array of storing elements with both row and column parallel output circuitry
US5898168A (en) * 1997-06-12 1999-04-27 International Business Machines Corporation Image sensor pixel circuit
US5907357A (en) * 1995-03-20 1999-05-25 Sony Corporation Switching circuit and charge transfer device using same
US6046466A (en) * 1997-09-12 2000-04-04 Nikon Corporation Solid-state imaging device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5737016A (en) * 1985-11-15 1998-04-07 Canon Kabushiki Kaisha Solid state image pickup apparatus for reducing noise
US5886343A (en) * 1993-05-28 1999-03-23 Canon Kabushiki Kaisha Image sensor comprising a two-dimensional array of storing elements with both row and column parallel output circuitry
US5600451A (en) * 1993-08-12 1997-02-04 Sony Corporation Charge transfer device and output circuit thereof
US5471515A (en) * 1994-01-28 1995-11-28 California Institute Of Technology Active pixel sensor with intra-pixel charge transfer
US5907357A (en) * 1995-03-20 1999-05-25 Sony Corporation Switching circuit and charge transfer device using same
US5898168A (en) * 1997-06-12 1999-04-27 International Business Machines Corporation Image sensor pixel circuit
US6046466A (en) * 1997-09-12 2000-04-04 Nikon Corporation Solid-state imaging device

Also Published As

Publication number Publication date
WO2000078034A2 (en) 2000-12-21
AU5494300A (en) 2001-01-02

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