Apparatus and method for data embedding in light communication and the light communication system and method thereof
US8942571B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 2012 |
| Grant date | Jan 27, 2015 |
| Priority date | — |
| Expiry date | May 31, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/116
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a light communication system, a data embedding unit arranged between a transmitter-side communication data processing unit and a light emitting device driver embeds a communication processed data at a spatial domain of an original image according to a modulation scheme, and gets multiple RGB values for a communication data embedded image. A receiving apparatus detects a transmitter-side communication data embedded image, generates a receiver-side communication data embedded image, compensate a deformation of the receiver-side communication data embedded image, outputs a warped communication data embedded image, and extracts a communication processed data from the warped communication data embedded image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.