Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-03-01
2009-06-30
Tran, Tuan A (Department: 2618)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S423000, C455S067110, C455S067120, C455S067130, C455S226100, C455S226200, C455S226300, C455S254000, C716S030000, C343S703000
Reexamination Certificate
active
07555294
ABSTRACT:
A test method for determining total isotropic sensitivity (TIS) of a mobile wireless communications device including a radio frequency (RF) receiver and an antenna coupled thereto may include measuring a sensitivity of the RF receiver, and measuring a three-dimensional (3D) gain pattern of the antenna independent of measuring the sensitivity of the RF receiver. The method may further include determining the TIS of the mobile wireless communications device based upon the sensitivity of the RF receiver and the 3D gain pattern of the antenna.
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Certain Michael
Jarmuszewski Perry
Qi Yihong
Research In Motion Limited
Tran Tuan A
Yee & Associates P.C.
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