Information communication method for obtaining information specified by striped pattern of bright lines
US9560284B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2013 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Nov 22, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/80
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An information communication method that enables communication between various devices includes: setting an exposure time of an image sensor so that, in an image obtained by capturing a subject by the image sensor, a bright line corresponding to an exposure line included in the image sensor appears according to a change in luminance of the subject; obtaining a bright line image including the bright line, by capturing the subject that changes in luminance by the image sensor with the set exposure time; and obtaining information by demodulating data specified by a pattern of the bright line included in the obtained bright line image, wherein in the obtaining of a bright line image, the bright line image is obtained by capturing light emitted from the subject and expanded by an optical system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.