Transmitter, receiver, communication system, and transmission and reception methods
US10236979B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2016 |
| Grant date | Mar 19, 2019 |
| Priority date | — |
| Expiry date | Jan 30, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/116
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A transmitter includes a light source which enables changing the characteristic of light, on a time-series basis, and a controller which sets a predetermined duration for a symbol included in information to be transmitted and controls the light source to change the characteristic of the light emitted by the light source, on a time-series basis in accordance with a value of the symbol in the duration. A receiver includes a camera which generates a plurality of images each recording an image capturing range including at least a part of an area irradiated with the light from the transmitter, with a predetermined image capturing period, and a processor configured to extract a feature amount representing the characteristic of the light, from each of the plurality of images, and decode the value of the symbol from a time-series change in the feature amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.