Information communication method
US9094120B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2013 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | Nov 22, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/516
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An information communication method that enables communication between various devices includes: determining a plurality of patterns of a change in luminance, by modulating a respective plurality of signals to be transmitted; and transmitting, by each of a plurality of light emitters changing in luminance according to any one of the determined plurality of patterns of the change in luminance, a signal corresponding to the pattern, wherein in the transmitting, each of the plurality of light emitters changes in luminance at a different frequency so that light of one of two types of light different in luminance is output per a time unit predetermined for the light emitter and that the time unit predetermined for the light emitter is different from a time unit predetermined for an other one of the plurality of light emitters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.