Invention Grant
- Patent Title: Method and system for synchronizing a flash to an imager
- Patent Title (中): 用于将闪光灯同步到成像器的方法和系统
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Application No.: US12182375Application Date: 2008-07-30
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Publication No.: US08994877B2Publication Date: 2015-03-31
- Inventor: Alexander Mokhnatyuk
- Applicant: Alexander Mokhnatyuk
- Applicant Address: US AZ Phoenix
- Assignee: Semiconductor Components Industries, LLC
- Current Assignee: Semiconductor Components Industries, LLC
- Current Assignee Address: US AZ Phoenix
- Agent Michael H. Lyons
- Main IPC: H04N5/222
- IPC: H04N5/222 ; H04N5/262 ; H04N5/353 ; H04N5/232 ; H04N5/235

Abstract:
A digital camera system synchronizes a flash to an array of image sensing elements. The array of image sensing elements senses an image focused on the array by a lens. The system includes an array controller that implements an electronic rolling shutter to capture the image as a frame. The electronic rolling shutter includes read and reset pointers that the array controller scans through the array to capture integrated photo charges on the image sensing elements to generate the frame. The number of lines between the reset and read pointers defines the integration time of the imager. The system also includes a flash controller that synchronizes the flash to a portion of the frame. When the flash is activated, the camera system reduces the integration time and synchronizes the flash to the scanning of a selected portion of the array.
Public/Granted literature
- US20100026853A1 METHOD AND SYSTEM FOR SYNCHRONIZING A FLASH TO AN IMAGER Public/Granted day:2010-02-04
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