Multiplex communications – Communication over free space – Repeater
Reexamination Certificate
2008-02-11
2011-12-27
Chriss, Andrew (Department: 2472)
Multiplex communications
Communication over free space
Repeater
C370S329000, C370S348000, C709S228000, C709S229000, C455S422100
Reexamination Certificate
active
08085706
ABSTRACT:
A wireless communication method and apparatus for the same performs access control in the following manner, where an acquisition of a right to transmit is performed by CSMA access control method, and a collision of transmitted data packets among different communication apparatuses is prevented for facilitating a stable transmission of data packets from each of the apparatuses in a predetermined interval. The transmission of a data packet having a predetermined data length under a cyclical access control sets an access control start time at a time that is after a lapse of predetermined amount of time from the previous acquisition of the right to transmit. As a result, the competition of the right to transmit is resolved due to a different access control start time set for the next transmission.
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Office Action dated Aug. 25, 2009 from Japan Patent Office in corresponding JP application No. JP-2007-032238 (and English translation).
Chriss Andrew
DENSO CORPORATION
Posz Law Group , PLC
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