Communication apparatus and method for controlling...

Details Communication apparatus and method for controlling... Communication apparatus and method for controlling...

2011-03-29

2011-03-29

Jung, Min (Department: 2472)

Multiplex communications

Communication over free space

C370S465000

Reexamination Certificate

active

07916673

ABSTRACT:
A sender communication device includes a communication unit for sending a communication signal to a receiver communication device, and a communication controller for controlling setting of communication channels used for the communication unit as well as for setting, when sending the communication signal, a sending period of the communication signal substantially not shorter than a receive confirmation period of all communication channels in the receiver communication device. A receiver communication device includes a communication unit for receiving the communication signal sent from the sender communication device while switching over plural communication channels, and a communication controller for controlling switching of the communication channels and for setting a communication signal receive-waiting opportunity, in which a first communication channel is used, substantially higher than a receive-waiting opportunity, in which a second communication channel is used. It is thus possible to avoid radiowave interference while saving electric power and lowering delay.

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patent: 6665017 (2003-12-01), Raiyat
patent: 7251231 (2007-07-01), Gubbi
patent: 2003/0108111 (2003-06-01), Miwa
patent: 2005/0204247 (2005-09-01), Guo et al.
patent: 2005-142815 (2005-06-01), None

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