Optical communications – Transmitter
Reexamination Certificate
2008-09-09
2008-09-09
Phan, Hanh (Department: 2613)
Optical communications
Transmitter
C398S183000, C398S185000, C398S186000, C398S187000, C398S192000, C398S193000, C398S194000, C398S195000, C398S196000, C398S197000, C398S198000, C398S200000, C398S202000, C398S208000, C398S209000, C398S214000, C398S115000, C398S128000, C398S130000, C398S135000, C398S141000, C398S158000, C398S159000, C398S163000, C375S316000, C375S295000, C375S258000, C375S377000, C375S219000, C370S463000, C370S464000, C370S466000, C370S538000
Reexamination Certificate
active
10403467
ABSTRACT:
A communication system includes an optical transmitter which is differentially driven and an optical receiver that outputs a differential signal. The optical transmitter creates the differential drive signal from an input signal and delivers the differential drive signal to a laser. The differential drive signal is generated with a transformer and RF chokes for floating the laser above ground. The signal detected by the receiver is input as a differential signal to a transformer which then passes the signal through amplifiers and a filter. The optical communication system provides an increased spurious-free dynamic range which is well suited for RF signals and other analog signals.
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Abernathy Michael Gregory
Williams Wilber Andrew
Kilpatrick & Stockton LLP
Lockheed Martin Corporation
Phan Hanh
LandOfFree
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