WO2010143848A3 - Ramp signal generator using a non-switching method, and image sensor comprising same - Google Patents

Ramp signal generator using a non-switching method, and image sensor comprising same Download PDF

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Publication number
WO2010143848A3
WO2010143848A3 PCT/KR2010/003631 KR2010003631W WO2010143848A3 WO 2010143848 A3 WO2010143848 A3 WO 2010143848A3 KR 2010003631 W KR2010003631 W KR 2010003631W WO 2010143848 A3 WO2010143848 A3 WO 2010143848A3
Authority
WO
WIPO (PCT)
Prior art keywords
ramp signal
signal generator
switching method
image sensor
present
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2010/003631
Other languages
French (fr)
Korean (ko)
Other versions
WO2010143848A2 (en
WO2010143848A8 (en
Inventor
정태송
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZEE ANN CO Ltd
Original Assignee
ZEE ANN CO Ltd
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 ZEE ANN CO Ltd filed Critical ZEE ANN CO Ltd
Publication of WO2010143848A2 publication Critical patent/WO2010143848A2/en
Publication of WO2010143848A3 publication Critical patent/WO2010143848A3/en
Publication of WO2010143848A8 publication Critical patent/WO2010143848A8/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • 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
    • H04N25/618—Noise processing, e.g. detecting, correcting, reducing or removing noise for random or high-frequency noise
    • 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
    • H04N25/78—Readout circuits for addressed sensors, e.g. output amplifiers or A/D converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

The present invention relates to a ramp signal generator using a non-switching method and to an image sensor comprising same. According to one aspect of the present invention, a ramp signal generator is disclosed. According to one embodiment of the present invention, the ramp signal generator, which generates a ramp signal for an analog-digital conversion, comprises: a reference power set unit which sets a reference power; and a ramp signal generating unit which charges a prepared capacitive element using a reference voltage, discharges the capacitive element, and outputs a signal which indicates the progress of the discharging as a ramp signal. The ramp signal generator according to the present invention has the advantage of generating the ramp signal in a non-switching method, to thereby fundamentally remove switching noise.
PCT/KR2010/003631 2009-06-08 2010-06-07 Lamp signal generator using a non-switching method, and image sensor comprising same Ceased WO2010143848A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020090050465A KR20100131729A (en) 2009-06-08 2009-06-08 Lamp signal generator using a non-switching method and an image sensor including the same
KR10-2009-0050465 2009-06-08

Publications (3)

Publication Number Publication Date
WO2010143848A2 WO2010143848A2 (en) 2010-12-16
WO2010143848A3 true WO2010143848A3 (en) 2011-03-03
WO2010143848A8 WO2010143848A8 (en) 2011-04-28

Family

ID=43309340

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2010/003631 Ceased WO2010143848A2 (en) 2009-06-08 2010-06-07 Lamp signal generator using a non-switching method, and image sensor comprising same

Country Status (2)

Country Link
KR (1) KR20100131729A (en)
WO (1) WO2010143848A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160114464A (en) * 2015-03-24 2016-10-05 현대아이에이치엘 주식회사 Apparatus for electric current control of vehicle lamp
KR102507628B1 (en) * 2018-04-24 2023-03-09 에스케이하이닉스 주식회사 Ramp Signal Generator, and CMOS Image Sensor Using That
KR102164755B1 (en) * 2019-09-17 2020-10-14 관악아날로그 주식회사 Current steering digital-to-analog converter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5321404A (en) * 1993-02-18 1994-06-14 Analog Devices, Inc. Ripsaw analog-to-digital converter and method
US20060164277A1 (en) * 2005-01-27 2006-07-27 Micron Technology, Inc. Programmable integrating ramp generator and method of operating the same
KR20080053165A (en) * 2006-12-08 2008-06-12 한국전자통신연구원 Current Mode Dual Integral Inverter
KR20080071520A (en) * 2007-01-30 2008-08-04 샤프 가부시키가이샤 A / D converter
JP2009049681A (en) * 2007-08-20 2009-03-05 Yokogawa Electric Corp Skew adjustment circuit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5321404A (en) * 1993-02-18 1994-06-14 Analog Devices, Inc. Ripsaw analog-to-digital converter and method
US20060164277A1 (en) * 2005-01-27 2006-07-27 Micron Technology, Inc. Programmable integrating ramp generator and method of operating the same
KR20080053165A (en) * 2006-12-08 2008-06-12 한국전자통신연구원 Current Mode Dual Integral Inverter
KR20080071520A (en) * 2007-01-30 2008-08-04 샤프 가부시키가이샤 A / D converter
JP2009049681A (en) * 2007-08-20 2009-03-05 Yokogawa Electric Corp Skew adjustment circuit

Also Published As

Publication number Publication date
WO2010143848A2 (en) 2010-12-16
WO2010143848A8 (en) 2011-04-28
KR20100131729A (en) 2010-12-16

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