Information providing apparatus, information receiver,...

Details Information providing apparatus, information receiver,... Information providing apparatus, information receiver,...

2011-04-26

2011-04-26

Lee, John (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

C455S041200, C455S086000, C455S452100

Reexamination Certificate

active

07933625

ABSTRACT:
The present invention has a cash register1and a Bluetooth portable terminal2which conduct short-range wireless communication to each other. The cash register1decreases transmission power during periods when a search request processing and a connection request processing for the Bluetooth portable terminal2are conducted, thereby being connected with only a prescribed Bluetooth portable terminal2. At the time of providing services, electric power for transmission is increased. Therefore, it is possible to surely connect with the prescribed Bluetooth portable terminal2. After connected with the prescribed Bluetooth portable terminal, even if the Bluetooth portable terminal2moves at comparatively broad range, it is possible to provide the Bluetooth portable terminal2with services.

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Toru Aihara, “Short-Distance Radio Communication Specification Bluetooth”, BIT, vol. 32, issue 10, Oct. 1, 2000, pp. 8-16.

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