Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2007-05-08
2007-05-08
Gesesse, Tilahun (Department: 2618)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S404200, C342S357490
Reexamination Certificate
active
10016631
ABSTRACT:
A wireless communication facility and method employs a mobile unit having a number of alternative modes of digital wireless communication. The unit may be a battery pack or other accessory device attachable to a wireless telephone handset. The mobile unit is operated to assess some characteristic of each of the alternative modes, and based on the assessment, a preferred mode is determined. Data is transmitted via the preferred mode. The unit may include a GPS locator, so that the transmitted data may include the location of the unit. A call center is connected via the modes, and receives the data for processing, such as to return information to the user about the location.
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Fournier Andre F. A.
Grant Stephen M.
Jahani Allen A.
Sawyer Michael S.
Airbiquity Inc.
Gesesse Tilahun
Stoel Rives LLP
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