Multiplex communications – Communication over free space – Combining or distributing information via time channels
Reexamination Certificate
2008-09-17
2011-12-06
Pham, Chi (Department: 2471)
Multiplex communications
Communication over free space
Combining or distributing information via time channels
C370S345000, C370S459000
Reexamination Certificate
active
08072964
ABSTRACT:
In a communication system in which a plurality of communication apparatuses form a wireless network and communicate with each other, a communication apparatus establishes timing synchronization by transmitting and receiving a beacon to and from other communication apparatuses. The communication apparatus determines whether or not beacon slots for transmitting the beacon are occupied, and if the beacon slots are occupied, connects to another communication apparatus without transmitting the beacon.
REFERENCES:
patent: 6894992 (2005-05-01), Morvan et al.
patent: 2007/0274206 (2007-11-01), Habetha et al.
patent: 2008/0071936 (2008-03-01), Sugaya
patent: 2008/0253354 (2008-10-01), Eguchi
Canon Kabushiki Kaisha
Cowan Liebowitz & Latman P.C.
Huang Weibin
Pham Chi
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