Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2004-09-27
2009-06-09
Tran, CongVan (Department: 2617)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S352000, C370S401000, C455S422100, C455S445000
Reexamination Certificate
active
07545783
ABSTRACT:
A telecommunications system includes a wireless packet network; a cellular telephone network; at least one computing device including a wireless network interface card for communicating over the wireless packet network; at least one cellular telephone device, the cellular telephone device having a cellular telephone mode for communicating over the cellular network and a packet network mode for communicating over the packet network; a presence server on said packet network; wherein the cellular telephone device is configured to function as a wireless access point for said at least one computing device by interfacing the wireless network interface card to the wireless packet network via the cellular network; wherein the presence server communicates with said at least one cellular telephone device to activate and deactivate said wireless access point based on a presence status.
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Beyda William J.
Caspi Rami
Siemens Communications Inc.
Tran CongVan
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