System and method of controlling transmit power for mobile wireless devices with multi-mode operation of antenna
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United States of America Patent
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Sep 20, 2011
Grant Date -
Apr 7, 2005
app pub date -
Oct 6, 2003
filing date -
Oct 6, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A radio control system in a wireless communication device includes a sensor operable to detect a change in a use mode of the wireless communication device during a communication session according to a pre-determined list of conditions, the use mode being one of a plurality of use modes that the communication device can operate in. The radio control system also includes a power controller connected to the sensor, that is operable to determine a power configuration according to the user mode detected. The power configuration is adjusted to balance the radio frequency coverage of a signal to be transmitted and the SAR. Of the radiation absorption. Each use mode is a different scenario in which the wireless communication device can be used.
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