Invention Grant
US08179464B2 Circuit and method for reading out and resetting pixels of an image sensor
有权
用于读出和复位图像传感器像素的电路和方法
- Patent Title: Circuit and method for reading out and resetting pixels of an image sensor
- Patent Title (中): 用于读出和复位图像传感器像素的电路和方法
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Application No.: US12227675Application Date: 2007-05-23
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Publication No.: US08179464B2Publication Date: 2012-05-15
- Inventor: Heinrich Schemmann , Sabine Roth , Steffen Lehr , Volker Neiss , Nicolaas Johannes Damstra , Petrus Gijsbertus Maria Centen , Jeroen Rotte
- Applicant: Heinrich Schemmann , Sabine Roth , Steffen Lehr , Volker Neiss , Nicolaas Johannes Damstra , Petrus Gijsbertus Maria Centen , Jeroen Rotte
- Applicant Address: FR Issy-les-Moulineaux
- Assignee: Thomson Licensing
- Current Assignee: Thomson Licensing
- Current Assignee Address: FR Issy-les-Moulineaux
- Agency: Myers Wolin, LLC
- Priority: EP06300513 20060524; EP06300514 20060524
- International Application: PCT/EP2007/055019 WO 20070523
- International Announcement: WO2007/135175 WO 20071129
- Main IPC: H04N3/14
- IPC: H04N3/14 ; H04N5/235

Abstract:
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.
Public/Granted literature
- US20090251580A1 Circuit and Method for Reading Out and Resetting Pixels of an Image Sensor Public/Granted day:2009-10-08
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