JPS56169978A - A-d converter for image sensor - Google Patents

A-d converter for image sensor

Info

Publication number
JPS56169978A
JPS56169978A JP7397880A JP7397880A JPS56169978A JP S56169978 A JPS56169978 A JP S56169978A JP 7397880 A JP7397880 A JP 7397880A JP 7397880 A JP7397880 A JP 7397880A JP S56169978 A JPS56169978 A JP S56169978A
Authority
JP
Japan
Prior art keywords
level
converter
signal
compression
fed
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.)
Granted
Application number
JP7397880A
Other languages
Japanese (ja)
Other versions
JPH0357679B2 (en
Inventor
Takashi Asaida
Fumio Nagumo
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP7397880A priority Critical patent/JPS56169978A/en
Publication of JPS56169978A publication Critical patent/JPS56169978A/en
Publication of JPH0357679B2 publication Critical patent/JPH0357679B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Analogue/Digital Conversion (AREA)
  • Picture Signal Circuits (AREA)

Abstract

PURPOSE:To avoid the decrease in contrast at high luminance, by compressing the input level only more than the standard white level and matching the entire analog signal after compression for a dynamic range of an A/D converter. CONSTITUTION:An analog signal Si outputted from an image sensor 10 is fed to a compression circuit 30 via a buffer amplifier 20. In the circuit 30, a compression start level decided with the forward voltage drop of a diode D and the DC voltage of a DC power supply E is set to the level of the signal Si. Further, the white peak level is the maximum input level of the signal Si after the compression and the compressing coefficient of the standard white level is selected to be 75-90% of the maximum input level. A compressed analog signal S0 is fed to an A/D converter 50 via an amplifier 10. The dynamic range of the converter 50 is matched to that of the signal S0. The digital signal SD outputted from the converter 50 is fed to a gamma compensation circuit 60 for gamma compensation.
JP7397880A 1980-06-02 1980-06-02 A-d converter for image sensor Granted JPS56169978A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7397880A JPS56169978A (en) 1980-06-02 1980-06-02 A-d converter for image sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7397880A JPS56169978A (en) 1980-06-02 1980-06-02 A-d converter for image sensor

Publications (2)

Publication Number Publication Date
JPS56169978A true JPS56169978A (en) 1981-12-26
JPH0357679B2 JPH0357679B2 (en) 1991-09-02

Family

ID=13533689

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7397880A Granted JPS56169978A (en) 1980-06-02 1980-06-02 A-d converter for image sensor

Country Status (1)

Country Link
JP (1) JPS56169978A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58154971A (en) * 1982-02-19 1983-09-14 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Television image pickup device
JPS5934776A (en) * 1982-08-20 1984-02-25 Olympus Optical Co Ltd Picture signal processor
JPS61214863A (en) * 1985-03-21 1986-09-24 Canon Inc Gradation compensating method
KR100422579B1 (en) * 2002-04-29 2004-03-12 주식회사 하이닉스반도체 Image sensor and method for signal processing of image sensor
KR100498594B1 (en) * 2000-12-30 2005-07-01 매그나칩 반도체 유한회사 Cmos image sensor
US7996188B2 (en) 2005-08-22 2011-08-09 Accuri Cytometers, Inc. User interface for a flow cytometer system
US8004674B2 (en) 2009-06-02 2011-08-23 Accuri Cytometers, Inc. Data collection system and method for a flow cytometer
US8077310B2 (en) 2006-08-30 2011-12-13 Accuri Cytometers, Inc. System and method of capturing multiple source excitations from a single location on a flow channel
US10031064B2 (en) 2010-10-25 2018-07-24 Accuri Cytometers, Inc. Systems and user interface for collecting a data set in a flow cytometer

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58154971A (en) * 1982-02-19 1983-09-14 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Television image pickup device
JPS5934776A (en) * 1982-08-20 1984-02-25 Olympus Optical Co Ltd Picture signal processor
JPS61214863A (en) * 1985-03-21 1986-09-24 Canon Inc Gradation compensating method
KR100498594B1 (en) * 2000-12-30 2005-07-01 매그나칩 반도체 유한회사 Cmos image sensor
KR100422579B1 (en) * 2002-04-29 2004-03-12 주식회사 하이닉스반도체 Image sensor and method for signal processing of image sensor
US7996188B2 (en) 2005-08-22 2011-08-09 Accuri Cytometers, Inc. User interface for a flow cytometer system
US8077310B2 (en) 2006-08-30 2011-12-13 Accuri Cytometers, Inc. System and method of capturing multiple source excitations from a single location on a flow channel
US8004674B2 (en) 2009-06-02 2011-08-23 Accuri Cytometers, Inc. Data collection system and method for a flow cytometer
US10031064B2 (en) 2010-10-25 2018-07-24 Accuri Cytometers, Inc. Systems and user interface for collecting a data set in a flow cytometer
US10481074B2 (en) 2010-10-25 2019-11-19 Becton, Dickinson And Company Systems and user interface for collecting a data set in a flow cytometer
US11125674B2 (en) 2010-10-25 2021-09-21 Becton, Dickinson And Company Systems and user interface for collecting a data set in a flow cytometer

Also Published As

Publication number Publication date
JPH0357679B2 (en) 1991-09-02

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