Invention Grant
- Patent Title: Focus position estimation
- Patent Title (中): 焦点位置估计
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Application No.: US14330789Application Date: 2014-07-14
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Publication No.: US09210317B2Publication Date: 2015-12-08
- Inventor: Jianping Zhou
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Kenyon & Kenyon LLP
- Main IPC: H04N5/232
- IPC: H04N5/232 ; G03B3/10 ; G02B7/08 ; G02B27/64

Abstract:
A method for lens position estimation can include receiving from a lens driver a drive current value representing a current to be provided to a motor to position a camera lens of an electronic device, detecting an orientation of the electronic device using a motion sensor, determining a gravity vector based upon the orientation, and computing an estimated value of a lens position of the camera lens of the electronic device based upon the drive current value and gravity vector.
Public/Granted literature
- US20140320731A1 FOCUS POSITION ESTIMATION Public/Granted day:2014-10-30
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