Invention Grant
US09019412B2 Information communication method for selecting between visible light communication mode and normal imaging mode 有权
用于在可见光通信模式和正常成像模式之间进行选择的信息通信方法

Information communication method for selecting between visible light communication mode and normal imaging mode
Abstract:
An information communication method selects between a visible light communication mode in which information is obtained from a subject using an image sensor having a plurality of exposure lines and a normal imaging mode. The information communication method includes obtaining first image data by image capture with a first exposure time in the normal imaging mode by sequentially starting exposure of each of the exposure lines of the image sensor at different times. Second image data is obtained by image capture with a second exposure time in the visible light communication mode. The information is obtained by demodulating data specified by a direction in a pattern of a bright line corresponding to the exposure lines, the second exposure time being shorter than the first exposure time. The second image data is obtained by capturing light emitted from the subject and spread by an optical system.
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