Information communication method for obtaining information using bright line image
US9380227B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2015 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | Dec 4, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus includes a processor and a recording medium having a program, the program causing the processor to execute operations. The operations include a normal mode and a visible light communication mode, wherein the normal mode and the visible light communication mode are switchable. In the normal mode, first image data is obtained by image capture with a first exposure time by sequentially starting exposure for a plurality of exposure lines in an image sensor each at a different time and each of the plurality of exposure lines partially overlaps in exposure time an adjacent exposure line. The visible light communication mode includes (i) setting a second exposure time of the image sensor, (ii) obtaining a bright line image including the plurality of bright lines, and (iii) obtaining information by demodulating data specified by a pattern of the plurality of bright lines included in the obtained bright line image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.