Invention Grant
- Patent Title: Ramp signal generator, and CMOS image sensor using the same
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Application No.: US15202339Application Date: 2016-07-05
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Publication No.: US09894309B2Publication Date: 2018-02-13
- Inventor: Gun-Hee Yun
- Applicant: SK hynix Inc.
- Applicant Address: KR Gyeonggi-do
- Assignee: SK Hynix Inc.
- Current Assignee: SK Hynix Inc.
- Current Assignee Address: KR Gyeonggi-do
- Agency: IP & Group LLP
- Priority: KR10-2015-0189274 20151230
- Main IPC: H04N5/378
- IPC: H04N5/378 ; G05F3/26 ; H03K4/48 ; H04N5/357 ; H04N5/3745 ; H03K4/02
Abstract:
A ramp signal generator may include a reference current generation unit suitable for generating a reference current based on a gain; a ramp signal generation unit suitable for generating a ramp signal according to the reference current; a replica current supply unit suitable for supplying a replica current using the reference current generation unit; and an offset compensation unit suitable for compensating for an offset of the ramp signal generated by the ramp signal generation unit using the replica current.
Public/Granted literature
- US20170195601A1 RAMP SIGNAL GENERATOR, AND CMOS IMAGE SENSOR USING THE SAME Public/Granted day:2017-07-06
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