Radio communication arrangements

Details Radio communication arrangements Radio communication arrangements

2007-03-20

2007-03-20

Ferris, Derrick W. (Department: 2616)

Multiplex communications

Communication over free space

Combining or distributing information via time channels

Reexamination Certificate

active

10135337

ABSTRACT:
A communications arrangement10is disclosed which comprises first and second communications devices MT, AP, said first device MT being adapted to enter into a page scan state in which it is receptive to transmissions on a particular page scan frequency fpsand said second device AP being adapted to transmit a page train A which is centered around an estimate of said page scan frequency fps. The arrangement is characterized in that in that, under predetermined circumstances following prior communication between said devices MT, AP, said second device AP is adapted to transmit a page train A′ which has been modified to start on a frequency f(k) shifted to correspond to said estimate and preferably also truncated to avoid transmission of at least one predetermined frequency sub-train A2of the original page train A.

REFERENCES:
patent: 5940431 (1999-08-01), Haartsen et al.
patent: 6574266 (2003-06-01), Haartsen
patent: 6718395 (2004-04-01), Ziegler
patent: 0120940 (2000-09-01), None
“Specification of the Bluetooth System”. Bluetooth. Version 1.1 Feb. 22, 2001, pp. 287-288.
“Bluetooth Specification Version 1.1” Bluetooth, 'Online! Feb. 22, 2001, pp. 96-99.

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