Automatic gain control in a navigation device
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United States of America Patent
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-
Jan 1, 2013
Grant Date -
Feb 16, 2012
app pub date -
Oct 25, 2011
filing date -
Apr 27, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In one example, a Bluetooth enabled navigation device pairs with a mobile phone and then sends a plurality of tuning transmissions, each at a different transmission power gain amount, to a remote server using the mobile phone. These tuning transmissions are encoded using frequency tones that synthesize speech for transmission through the mobile phone and a voice channel of its wireless telecommunications network. The navigation device then tunes transmit power settings according to a received response to the tuning transmissions and uses the tuned transmit power settings for subsequent transmission to the remote server using this particular mobile phone.
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