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IN2013CH00509A - - Google Patents

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Publication number
IN2013CH00509A
IN2013CH00509A IN509CH2013A IN2013CH00509A IN 2013CH00509 A IN2013CH00509 A IN 2013CH00509A IN 509CH2013 A IN509CH2013 A IN 509CH2013A IN 2013CH00509 A IN2013CH00509 A IN 2013CH00509A
Authority
IN
India
Prior art keywords
signal
comparator
pixel
conversion unit
input
Prior art date
Application number
Inventor
Yasuji Ikeda
Seiji Hashimoto
Takashi Muto
Yasushi Matsuno
Daisuke Yoshida
Original Assignee
Canon Kk
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 Canon Kk filed Critical Canon Kk
Publication of IN2013CH00509A publication Critical patent/IN2013CH00509A/en

Links

Classifications

    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10FINORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F39/00Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group H10F30/00, e.g. radiation detectors comprising photodiode arrays
    • H10F39/80Constructional details of image sensors
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12Analogue/digital converters
    • H03M1/18Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging
    • H03M1/186Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedforward mode, i.e. by determining the range to be selected directly from the input signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/70SSIS architectures; Circuits associated therewith
    • H04N25/76Addressed sensors, e.g. MOS or CMOS sensors
    • H04N25/77Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components
    • H04N25/772Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components comprising A/D, V/T, V/F, I/T or I/F converters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/70SSIS architectures; Circuits associated therewith
    • H04N25/76Addressed sensors, e.g. MOS or CMOS sensors
    • H04N25/78Readout circuits for addressed sensors, e.g. output amplifiers or A/D converters
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12Analogue/digital converters
    • H03M1/1205Multiplexed conversion systems
    • H03M1/123Simultaneous, i.e. using one converter per channel but with common control or reference circuits for multiple converters
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12Analogue/digital converters
    • H03M1/50Analogue/digital converters with intermediate conversion to time interval
    • H03M1/56Input signal compared with linear ramp

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)
  • Facsimile Image Signal Circuits (AREA)

Abstract

An image sensor comprises plural sets of a unit pixel outputting a pixel signal based on an electric charge generated through photoelectric conversion and a conversion unit converting the pixel signal into a digital signal. A reference signal source generates reference signals and supplies the generated reference signals to the conversion unit through signal lines. The conversion unit of each set comprises a comparator which compares the level of the reference signal with that of the pixel signal, a count circuit which counts a clock based on the comparison processing, a selection circuit which selects, among the signal lines, a signal line to be selectively connected to the input of the comparator, and a switch which selectively connects the selected signal line to the input of the comparator, and selectively connects a load to an unselected one of the signal lines. (FIG. 1)
IN509CH2013 2012-02-09 2013-02-06 IN2013CH00509A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012026422 2012-02-09
JP2013005708A JP5893573B2 (en) 2012-02-09 2013-01-16 Solid-state imaging device

Publications (1)

Publication Number Publication Date
IN2013CH00509A true IN2013CH00509A (en) 2015-07-31

Family

ID=47844061

Family Applications (1)

Application Number Title Priority Date Filing Date
IN509CH2013 IN2013CH00509A (en) 2012-02-09 2013-02-06

Country Status (6)

Country Link
US (1) US9159750B2 (en)
EP (1) EP2627078B1 (en)
JP (1) JP5893573B2 (en)
CN (1) CN103248842B (en)
IN (1) IN2013CH00509A (en)
RU (1) RU2546554C2 (en)

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JP6661396B2 (en) 2016-01-29 2020-03-11 キヤノン株式会社 Semiconductor devices and electronic equipment
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JP6727938B2 (en) 2016-06-10 2020-07-22 キヤノン株式会社 IMAGING DEVICE, IMAGING DEVICE CONTROL METHOD, AND IMAGING SYSTEM
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Also Published As

Publication number Publication date
EP2627078A2 (en) 2013-08-14
CN103248842A (en) 2013-08-14
JP2013179577A (en) 2013-09-09
EP2627078A3 (en) 2016-09-07
US20130206961A1 (en) 2013-08-15
US9159750B2 (en) 2015-10-13
EP2627078B1 (en) 2018-11-07
RU2546554C2 (en) 2015-04-10
JP5893573B2 (en) 2016-03-23
RU2013104449A (en) 2014-08-10
CN103248842B (en) 2016-06-22

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