Optical communications – Transmitter and receiver system – Including synchronization
Reexamination Certificate
2006-08-14
2009-11-03
Singh, Dalzid (Department: 2613)
Optical communications
Transmitter and receiver system
Including synchronization
C398S158000
Reexamination Certificate
active
07613399
ABSTRACT:
In order to improve a transmission speed of multilevel light transmission, increasing the number of light emitting elements is effective. However, in a method in which light outputs from a plurality of light emitting elements are added, because common mode noise contained in the light outputs is added, deterioration in transmission quality caused by the common mode noise prominently arises. Therefore, a difference between two light outputs is previously assigned to data to be transmitted. Specifically, an optical transmitter102converts data Dt to multilevel optical signals OSm1and OSm2and transmits the converted multilevel optical signals to an optical receiver103. The optical receiver103restores the data Dt which is previously assigned to a difference between electrical signals ESr1and ESr2converted from the multilevel optical signals OSm1and OSm2.
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Sasai Hiroyuki
Yasumoto Hideo
Panasonic Corporation
Singh Dalzid
Wenderoth , Lind & Ponack, L.L.P.
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