Optical waveguides – Integrated optical circuit
Reexamination Certificate
2006-06-07
2009-02-17
Pak, Sung H (Department: 2874)
Optical waveguides
Integrated optical circuit
C398S183000, C398S191000
Reexamination Certificate
active
07492981
ABSTRACT:
In an LSI system, a short optical pulse train is guided to an optical divider which divides the short optical pulse train into first and second short optical pulse trains. A retardation of ½ of the pulse period is produced between the first and second short optical pulse trains. The first and second short optical pulse trains are guided to first and second photodiodes on an LSI chip and are converted in the first and second electric current pulse trains, respectively. The first and second electric current pulse trains are supplied to an electrical clock output terminal electrically connected to the first and second photodiodes so that the electrical clock output terminals generates an electric clock pulse.
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Debaes, et al., Receiver-Less Optical Clock Injection for Clock Distribution Networks, IEEE Journal of Selected Topics in Quantum Electronics, vol. 9, No. 2, pp. 400-409, 2003.
International Search Report for PCT/JP2005/021182 dated Jul. 12, 2006.
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Debaes et al, Receiver-Less Optical Clock Injection for Clock Distribution Networks, IEEE Journal of Selected Topics in Quantum Electronics, vol. 9, No. 2, pp. 400-409, Mar./Arp. 2003.
Amin Turocy & Calvin LLP
Kabushiki Kaisha Toshiba
Pak Sung H
Petkovsek Daniel
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