发明公开
EP2022256A2 CIRCUIT AND METHOD FOR READING OUT AND RESETTING PIXELS OF AN IMAGE SENSOR
审中-公开
ZURÜCKSETZENVON PIXENNEIN BILDSENSORS的SCHALTUNG UND VERFAHREN ZUM AUSLESEN
- 专利标题： CIRCUIT AND METHOD FOR READING OUT AND RESETTING PIXELS OF AN IMAGE SENSOR
- 专利标题（中）： ZURÜCKSETZENVON PIXENNEIN BILDSENSORS的SCHALTUNG UND VERFAHREN ZUM AUSLESEN
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申请号： EP07729453.6申请日： 2007-05-23
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公开(公告)号： EP2022256A2公开(公告)日： 2009-02-11
- 发明人: SCHEMMANN, Heinrich , ROTH, Sabine , LEHR, Steffen , NEISS, Volker , DAMSTRA, Nicolaas, Johannes , CENTEN, Petrus Gijsbertus Maria , ROTTE, Jeroen
- 申请人： Thomson Licensing
- 申请人地址： 46, Quai A. Le Gallo 92100 Boulogne-Billancourt FR
- 专利权人： Thomson Licensing
- 当前专利权人： Thomson Licensing
- 当前专利权人地址： 46, Quai A. Le Gallo 92100 Boulogne-Billancourt FR
- 代理机构： Lindemann, Robert
- 优先权： EP06300514 20060524; EP06300513 20060524
- 国际公布： WO2007135175 20071129
- 主分类号： H04N5/235
- IPC分类号： H04N5/235
摘要：
A circuit for resetting and reading out a pixel cell of a CMOS image sensor is proposed. The circuit allows for reading out the pixel cell at least two times during a main integration interval, thereby generating at least two pixel signals. The circuit further comprises means for combining the at least two pixel signals to an output signal. The means for combining are operable to combine the at least two pixel signals weighted in dependence on a saturation level of the pixel cell. A method for controlling the circuit for reading out the image sensor is also proposed.
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