Method and apparatus for processing signals of...

Details Method and apparatus for processing signals of... Method and apparatus for processing signals of...

2008-08-11

2011-10-25

Singh, Dalzid (Department: 2613)

Optical communications

Receiver

C398S208000, C398S172000

Reexamination Certificate

active

08045864

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.

REFERENCES:
patent: 5635700 (1997-06-01), Fazekas
patent: 5953146 (1999-09-01), Shelby
patent: 2005/0046482 (2005-03-01), Schrodinger

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