Optical communications – Multiplex – Optical switching
Reexamination Certificate
2007-09-18
2007-09-18
Chan, Jason (Department: 2613)
Optical communications
Multiplex
Optical switching
C398S050000
Reexamination Certificate
active
10924976
ABSTRACT:
An optical crossconnect apparatus which includes one terminal connected to a transmission path from one optical transmission terminal station and another terminal connected to a transmission path from another optical transmission terminal station, a first optical signal switch having “M1” ports and “N1” ports, through which the optical signal can pass, a second optical signal switch having “M2” ports and “N2” ports, through which the optical signal can pass, and “L” optical signal repeaters, one end connected to the “N1” ports of the first optical signal switch, and the other end connected to the “N2” ports of the second optical switch. The “N1” and the “N2” ports are equal to “L” optical signal repeaters. The “M1” ports of the first optical signal switch connected to the one terminal, and the “M2” ports of the second optical signal switch connected to the other terminal are larger than, or equal to 2.
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Fukashiro Yasuyuki
Hanatani Shoichi
Hayashi Yukio
Kanetake Tatsuo
Kitajima Shigeki
Chan Jason
Hitachi , Ltd.
Mattingly ,Stanger ,Malur & Brundidge, P.C.
Wang Quan-Zhen
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