Patent ID: 9083544
Filing Date: 2015-07-14
Classification: H04B,H04L,H04N,H04W

Abstract:
1. An information communication method of obtaining information from a subject using an image sensor including a plurality of exposure lines, the information communication method comprising: obtaining first image data by (i) starting a sequential exposure of the plurality of exposure lines included in the image sensor, a starting of the exposure of each of the plurality of exposure lines for the first image data being at a different time, and (ii) capturing the subject using a first exposure time to allow an exposure time of each of the plurality of exposure lines to partially overlap, in terms of time, with an exposure time of an adjacent one of the plurality of exposure lines; and obtaining information by (i) obtaining second image data including a striped pattern of bright lines, the bright lines each corresponding to one of the plurality of exposure lines by (a) starting a sequential exposure of the plurality of exposure lines, a starting of the exposure of each of the plurality of exposure lines for the second image data being at a different time, and (b) capturing the subject using a second exposure time to allow the exposure time of each of the plurality of exposure lines to partially overlap, in terms of time, with an exposure time of an adjacent one of the plurality of exposure lines, the second exposure time being shorter than the first exposure time and (ii) demodulating data specified by a vertical direction of the striped pattern of the bright lines, each of the bright lines appearing in the second image data and corresponding to one of the plurality of exposure lines, wherein in the obtaining of the information, the second exposure time is set to less than or equal to 1/480 second to generate the bright lines in the second image data, and wherein the first image data obtained in the obtaining of the first image data and the second image data obtained in the obtaining of the information are read out using an identical reading method.