Information communication method using change in luminance
US9341014B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2013 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Dec 27, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/72412
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An information communication method that enables communication between various devices is an information communication method of transmitting a signal using a change in luminance, and includes: determining a pattern of the change in luminance, by modulating the signal to be transmitted; and transmitting the signal, by a plurality of light emitters changing in luminance according to the determined pattern of the change in luminance, wherein the plurality of light emitters are arranged on a surface so that a non-luminance change area does not extend across the surface between the plurality of light emitters along at least one of a horizontal direction and a vertical direction of the surface, the non-luminance change area being an area in the surface outside the plurality of light emitters and not changing in luminance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.