Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2005-07-26
2005-07-26
Craver, Charles (Department: 2682)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S575700, C455S271000, C455S283000, C343S755000, C343S851000, C343S834000
Reexamination Certificate
active
06922574
ABSTRACT:
A wireless communication handset and system having improved antenna performance. The system includes a handset body (300) and multiple housing portions with different antenna loading characteristics, for example different materials or shapes, interchangeably mounted on a common portion of the handset body. The handset body (300) includes electrical communications circuitry coupled to an antenna (314), which is adjacent the interchangeable housing portions. A discrete or integrally formed antenna loading feature compensates for the different antenna loading characteristics of the different housing portions to provide optimal antenna performance regardless of the housing portions mounted on the handset body.
REFERENCES:
patent: 4876709 (1989-10-01), Rogers et al.
patent: 5822705 (1998-10-01), Lehtola
patent: 6016431 (2000-01-01), Holshouser
patent: 6341217 (2002-01-01), Wong
patent: 2002/0127971 (2002-09-01), Chen et al.
Decision of the Intellectual Property Office of Taiwan, Application No. 092102861, May 20, 2004, 2 pages.
Abbasi Aamir
Harshbarger Michael
Bowler II Roland K.
Craver Charles
Motorola Inc.
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