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TW200943978A - An efficient wide-range and high-resolution black level and offset calibration system - Google Patents

An efficient wide-range and high-resolution black level and offset calibration system

Info

Publication number
TW200943978A
TW200943978A TW97111976A TW97111976A TW200943978A TW 200943978 A TW200943978 A TW 200943978A TW 97111976 A TW97111976 A TW 97111976A TW 97111976 A TW97111976 A TW 97111976A TW 200943978 A TW200943978 A TW 200943978A
Authority
TW
Taiwan
Prior art keywords
range
black level
calibration system
offset calibration
resolution black
Prior art date
Application number
TW97111976A
Other languages
Chinese (zh)
Inventor
Chi-Shao Lin
Amit Mittra
Original Assignee
Himax Imaging Inc
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 Himax Imaging Inc filed Critical Himax Imaging Inc
Priority to TW97111976A priority Critical patent/TW200943978A/en
Publication of TW200943978A publication Critical patent/TW200943978A/en

Links

Landscapes

  • Picture Signal Circuits (AREA)
  • Analogue/Digital Conversion (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)

Abstract

A black level calibration (BLC) system is disclosed. A readout chain receives and amplifies dark signal, and generates corresponding digital output. A level integrator performs integration of calibration levels in multiple steps according to the digital output, thereby achieving wide calibration range.
TW97111976A 2008-04-02 2008-04-02 An efficient wide-range and high-resolution black level and offset calibration system TW200943978A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW97111976A TW200943978A (en) 2008-04-02 2008-04-02 An efficient wide-range and high-resolution black level and offset calibration system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW97111976A TW200943978A (en) 2008-04-02 2008-04-02 An efficient wide-range and high-resolution black level and offset calibration system

Publications (1)

Publication Number Publication Date
TW200943978A true TW200943978A (en) 2009-10-16

Family

ID=44869147

Family Applications (1)

Application Number Title Priority Date Filing Date
TW97111976A TW200943978A (en) 2008-04-02 2008-04-02 An efficient wide-range and high-resolution black level and offset calibration system

Country Status (1)

Country Link
TW (1) TW200943978A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI450498B (en) * 2011-03-17 2014-08-21 Hon Hai Prec Ind Co Ltd Direct current offset correction circuit
TWI491265B (en) * 2009-10-21 2015-07-01 恆景科技股份有限公司 Black level calibration method and system
CN103634011B (en) * 2012-08-24 2016-12-28 英属开曼群岛商恒景科技股份有限公司 There is the integrator Ramp generator of digital to analog converter and switching type capacitor device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI491265B (en) * 2009-10-21 2015-07-01 恆景科技股份有限公司 Black level calibration method and system
TWI450498B (en) * 2011-03-17 2014-08-21 Hon Hai Prec Ind Co Ltd Direct current offset correction circuit
CN103634011B (en) * 2012-08-24 2016-12-28 英属开曼群岛商恒景科技股份有限公司 There is the integrator Ramp generator of digital to analog converter and switching type capacitor device

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