Communication method, communication device, and transmitter

    公开(公告)号:US10951310B2

    公开(公告)日:2021-03-16

    申请号:US16370764

    申请日:2019-03-29

    Abstract: A communication method including: determining whether a terminal is capable of performing visible light communication; when the terminal is determined to be capable of performing the visible light communication, obtaining a decode target image by an image sensor capturing a subject whose luminance changes, and obtaining, from a striped pattern appearing in the decode target image, first identification information transmitted by the subject; and when the terminal is determined to be incapable of performing the visible light communication in the determining pertaining to the visible light communication, obtaining a captured image by the image sensor capturing the subject, specifying a predetermined specific region by performing edge detection on the captured image, and obtaining, from a line pattern in the specific region, second identification information transmitted by the subject.

    Information communication method
    57.
    发明授权

    公开(公告)号:US10531009B2

    公开(公告)日:2020-01-07

    申请号:US16380515

    申请日:2019-04-10

    Abstract: An information communication method selectively obtains a location of a terminal device. Determining the location of the terminal device by wireless communication with a wireless access point includes receiving a radio signal including a first identification information to identify a location of the wireless access point, and calculating the location of the terminal device using the identified location of the wireless access point, which is identified by the first identification information. Determining the location of the terminal device by visible light communication with a subject provides higher accuracy and includes setting an exposure time of an image sensor having a plurality to exposure lines so that a bright line corresponding to each of the plurality of exposure lines included in the image sensor appears according to a change in luminance of the subject, obtaining a bright line image by capturing the subject, and demodulating data from the bright line image.

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