Method and apparatus for processing signals of photo-detector in visible light communication system
US8045864B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2008 |
| Grant date | Oct 25, 2011 |
| Priority date | — |
| Expiry date | Jul 6, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/1121
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method for processing incoming signals of photo-detectors in a visible light communication system. The method includes: dividing symbol duration into divided durations according to an equal time interval to set the divided durations to a plurality of time slots, the symbol duration being a time required to transmit one of a symbol and a bit; receiving visible light signals through a photodiode array in a receiver; determining a gain value of each of the photodiodes during a time slot, in consideration of each photodiode area on the photodiode array during the time slot and the time slot position within the symbol duration; multiplying a gain value of each of the photodiodes by an output value of a corresponding photodiode; and summing up output values of each of the photodiodes by which the gain value has been multiplied and calculating a total of output values of the time slot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.