Multiplex communications – Communication over free space – Signaling for performing battery saving
Patent
1996-11-14
1999-03-09
Zimmerman, Brian
Multiplex communications
Communication over free space
Signaling for performing battery saving
455343, G08C 1700
Patent
active
058810552
ABSTRACT:
The invention provides a communication apparatus and method capable of carrying out communication at a low consumed electric power without setting a base station when communication is carried out between a plurality of communication terminals capable of carrying out wireless communication. The communication apparatus 11 transmits a beacon from a transmission function circuit 22 every time the beacon transmission request is generated. A data receivable period is provided after the beacon is transmitted. After the lapse of the receivable period, the supply of the electric power to the transmission and reception processing device 12 is suspended with the power source control circuit 27 to provide a sleep time. The data can be exchanged with reliability without setting the base station by means of a beacon. Addition, the supply of electric power is suspended so that the consumed electric power can be eliminated.
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Conlin David G.
Lowry David D.
Sharp Kabushiki Kaisha
Zimmerman Brian
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