Invention Grant
US08969770B2 Correlated double sampling to include a controller to increment and invert a count during a first period and a second period
有权
相关的双重采样，包括一个控制器在第一个周期和第二个周期内递增和反转一个计数
- Patent Title: Correlated double sampling to include a controller to increment and invert a count during a first period and a second period
- Patent Title (中): 相关的双重采样，包括一个控制器在第一个周期和第二个周期内递增和反转一个计数
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Application No.: US13226820Application Date: 2011-09-07
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Publication No.: US08969770B2Publication Date: 2015-03-03
- Inventor: Dongsoo Kim , Sungkuk Hong , Kwangbo Cho
- Applicant: Dongsoo Kim , Sungkuk Hong , Kwangbo Cho
- Applicant Address: US AZ Phoenix
- Assignee: Semiconductor Components Industries, LLC
- Current Assignee: Semiconductor Components Industries, LLC
- Current Assignee Address: US AZ Phoenix
- Agent Kendall P. Woodruff
- Main IPC: H01L27/00
- IPC: H01L27/00 ; G01J1/44 ; H03K21/38 ; H04N5/357 ; H04N5/378
Abstract:
Apparatus and a method for correlated double sampling using an up-counter for parallel image sensors. All bits of a counter are set to one. An offset signal is compared to a first reference signal to define a first period during which the counter is incremented. After the first period, all bits of the counter are inverted. A sensor signal is compared to a second reference signal to define a second period during which the counter is incremented to generate a correlated double sampling value.
Public/Granted literature
- US20120280113A1 CORRELATED DOUBLE SAMPLING Public/Granted day:2012-11-08
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