Invention Grant
- Patent Title: Reduced pre-flash for LED flash based camera devices
- Patent Title (中): 降低了基于LED闪光灯的相机设备的预闪
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Application No.: US12971571Application Date: 2010-12-17
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Publication No.: US08391702B2Publication Date: 2013-03-05
- Inventor: Yochanan Cliel Manoach Gilbert-Schachter , Qian Wang
- Applicant: Yochanan Cliel Manoach Gilbert-Schachter , Qian Wang
- Applicant Address: CA Waterloo
- Assignee: Research In Motion Limited
- Current Assignee: Research In Motion Limited
- Current Assignee Address: CA Waterloo
- Agency: Novak Druce Connolly Bove + Quigg LLP
- Main IPC: G03B15/03
- IPC: G03B15/03

Abstract:
A mobile device comprising a processor, a camera module, and a flash configured to generate at least one of a reduced pre-flash, a standard pre-flash and a flash. The processor, in response to receiving an image capture request, is configured to receive a brightness value and determine a flash status based on a flash setting with the flash status being one of an off mode, on mode, and auto mode. In the event the flash status is one of the on mode and auto mode, determine whether there is sufficient light to capture an image based at least in part on a comparison of the brightness value and a flash threshold. In the event the brightness value is greater than the flash threshold, cause the flash to generate a shortened pre-flash and obtain only a white balance measurement and an auto-exposure measurement during the shortened pre-flash.
Public/Granted literature
- US20120155846A1 REDUCED PRE-FLASH FOR LED FLASH BASED CAMERA DEVICES Public/Granted day:2012-06-21
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