Invention Grant
- Patent Title: Image sensor with fast intra-frame focus
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Application No.: US14835503Application Date: 2015-08-25
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Publication No.: US09462179B2Publication Date: 2016-10-04
- Inventor: Tiejun Dai , Eiichi Funatsu , Donghui Wu , Zheng Yang , Xiao Xie
- Applicant: OMNIVISION TECHNOLOGIES, INC.
- Applicant Address: US CA Santa Clara
- Assignee: OmniVision Technologies, Inc.
- Current Assignee: OmniVision Technologies, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Blakely Sokoloff Taylor & Zafman LLP
- Main IPC: H04N5/232
- IPC: H04N5/232 ; H04N5/378 ; H04N5/376 ; H04N5/243

Abstract:
A method of focusing an image sensor includes scanning a first portion of an image frame from an image sensor a first time at a first rate to produce first focus data. A second portion of the image frame from the image sensor is scanned at a second rate to read image data from the second portion. The first rate is greater than the second rate. The first portion of the image frame is scanned a second time at the first rate to produce second focus data. The first focus data and the second focus data are compared, and the focus of a lens is adjusted in response to the comparison of the first focus data and the second focus data.
Public/Granted literature
- US20150365586A1 IMAGE SENSOR WITH FAST INTRA-FRAME FOCUS Public/Granted day:2015-12-17
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