Network interface device with shared antenna

Details Network interface device with shared antenna Network interface device with shared antenna

2011-03-15

2011-03-15

Ferris, Derrick W (Department: 2463)

Multiplex communications

Communication over free space

Plural usage of common antenna

Reexamination Certificate

active

07907585

ABSTRACT:
An improved network interface device includes at least two wireless network transceivers where the transceivers share at least one antenna. In one embodiment, one of the transceivers is a 2×2 MIMO WiFi N transceiver and the other of the transceivers is a 2×1 MIMO WiMAX transceiver. A priority selector and lockout control circuit is used to control which transceiver has access to the shared antenna. The control circuit of one embodiment is arranged so the WiMAX transceiver is given priority access to the shared antenna.

REFERENCES:
patent: 2003/0203743 (2003-10-01), Sugar et al.
patent: 2004/0192222 (2004-09-01), Vaisanen et al.
patent: 2006/0135206 (2006-06-01), Louks et al.
patent: 2006/0269022 (2006-11-01), Li et al.
patent: 2007/0238483 (2007-10-01), Boireau et al.
patent: 2008/0089350 (2008-04-01), Liu et al.
patent: 2008/0310487 (2008-12-01), Hammerschmidt et al.
patent: 2009/0075608 (2009-03-01), Ichitsubo
International Search Report and Written Opinion from corresponding International Application No. PCT/US08/80418.

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