Optical communications – Multiplex – Broadcast and distribution system
Reexamination Certificate
2005-05-31
2009-11-10
Wang, Quan-Zhen (Department: 2613)
Optical communications
Multiplex
Broadcast and distribution system
C398S066000, C398S067000, C398S068000, C398S069000, C398S070000, C398S071000
Reexamination Certificate
active
07616892
ABSTRACT:
A contents information delivery method for delivering a desired contents information by transmitting an optical signal from a central station to each of a plurality of user stations via a transmission line includes: a first step (S1) of outputting an optical signal containing the contents information as an optical signal having mutually different wavelengths each assigned for the each user station in advance, in the central station; a second step (S2) of transmitting an optical signal having a plurality of wavelengths outputted via the transmission line in the first step; and a third step (S3), in which each user station receives the optical signal having the wavelength assigned from among the transmitted optical signals, whereby, this simple configuration does not limit the transmission rate, the coding format, or the like in an optical access system, i.e., making it possible to cope with a super-large capacity.
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Notice of Reason for Refusal dated May 24, 2006.
Nakazato Hiroaki
Suzuki Yasuo
Fujitsu Limited
Katten Muchin & Rosenman LLP
Wang Quan-Zhen
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