Communication system

Details Communication system Communication system

2006-01-31

2006-01-31

Pham, Chi (Department: 2666)

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via time channels

C370S346000, C370S449000, C370S465000

Reexamination Certificate

active

06993049

ABSTRACT:
A communications system comprises a primary station (100) and at least one secondary station (101). The primary station (100) is arranged to broadcast a series of inquiry messages, each in the form of a plurality of predetermined data fields arranged according to a first communications protocol such as Bluetooth. In addition the primary station (100) adds to some or all of the inquiry messages an additional data field for polling one or more secondary stations, which can respond to the poll if they have data for transmission. This system provides secondary stations (101) with a rapid response time without the need for a permanently active communication link.

REFERENCES:
patent: 4766434 (1988-08-01), Matai et al.
patent: 6574266 (2003-06-01), Haartsen
patent: 6664891 (2003-12-01), Davies et al.

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