Multiplex communications – Communication techniques for information carried in plural... – Adaptive
Reexamination Certificate
2002-04-30
2008-08-26
Backer, Firmin (Department: 2616)
Multiplex communications
Communication techniques for information carried in plural...
Adaptive
C370S392000
Reexamination Certificate
active
07418009
ABSTRACT:
A method of communicating through a passive optical network (PON) that improves the efficiency of the network with low cost child apparatuses having only simple functions. A parent apparatus provides the child apparatuses with a multi-frame standard signal, and a child apparatus transfers asynchronous information as a frame of variable length, as it is, at a time delayed from the multi-frame standard signal by a time period designated by the parent apparatus. Since the asynchronous information does not need to be divided into pieces to which a frame header is attached, the efficiency of the uplink channel is increased.
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Abe Ken-ichi
Hirashima Katsuhiko
Kawai Miho
Matsumoto Masaharu
Murakami Shigeharu
Backer Firmin
Fujitsu Limited
Ng Christine
Staas & Halsey , LLP
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