Directional antenna for hand-held wireless communications...

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail

Reexamination Certificate

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Details

C455S025000, C455S063400, C455S067110, C455S290000, C455S300000, C343S841000

Reexamination Certificate

active

07072698

ABSTRACT:
A system for wireless communications is provided. The system includes a hand-held wireless communications device, such as a cell phone. An antenna is connected to the cell phone. The antenna radiates radio waves over an area of less than 360 degrees of arc, such as in a cardioid or hemisphere. The antenna is oriented such that hemisphere is in the direction away from a head of a user of the cell phone.

REFERENCES:
patent: 4196394 (1980-04-01), Adams
patent: 4849767 (1989-07-01), Naitou
patent: 5335366 (1994-08-01), Daniels
patent: 5338896 (1994-08-01), Danforth
patent: 5400040 (1995-03-01), Lane et al.
patent: 5530919 (1996-06-01), Tsuru et al.
patent: 5542106 (1996-07-01), Krenz et al.
patent: 5613221 (1997-03-01), Hunt
patent: 5678202 (1997-10-01), Filimon et al.
patent: 5708833 (1998-01-01), Kinney et al.
patent: 5826201 (1998-10-01), Gratias
patent: 5952964 (1999-09-01), Chan
patent: 6130607 (2000-10-01), McClanahan et al.
patent: 6134420 (2000-10-01), Flowerdew et al.
Erturk et al, “Design/Analysis of an Active Integrated Antenna”, IEEE Jul. 1996 pp1322-1325 vol. 2.

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