Keyed antenna adapter

Details Keyed antenna adapter Keyed antenna adapter

2006-07-04

2006-07-04

Tran, Thuy V. (Department: 2821)

Communications: radio wave antennas

Antennas

With coupling network or impedance in the leadin

C340S870030, C343S718000

Reexamination Certificate

active

07071892

ABSTRACT:
A keyed antenna apparatus (10, 10, 10b) for adapting a wireless access point (12, 12a,12b) to an external antenna (52, 54) or an external antenna group (22). A plurality of notches (62, 64) in a keyed jack (26, 26a,26b,26c) accept a keyed plug (28, 28a,28b) having thereon key projections (72, 74). The key projections (72, 74) produce signals by depressing microswitches (76), contacting electrical contacts (78), or the like. The signals selectively cause an antenna switch (18) to switch a signal path (19) between internal antennas (50, 20a,20b) and external antennas (52, 54). Further, the signals selectively cause a wireless adapter (16) to modify radio frequency signal characteristics, such as power.

REFERENCES:
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patent: 5742236 (1998-04-01), Cremers et al.
patent: 5763958 (1998-06-01), Yamamoto et al.
patent: 6131136 (2000-10-01), Liebenow et al.
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patent: 6683391 (2004-01-01), Enoyoshi et al.
patent: 6700220 (2004-03-01), Bayeur et al.
patent: 6748536 (2004-06-01), Madau
patent: 2003/0084691 (2003-05-01), Kato et al.

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