Title:
AUTOMATIC GAIN CONTROL IN A PERSONAL NAVIGATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2010/129122
Kind Code:
A3
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.
Inventors:
QUIMBY DAVID (US)
JOHNSON KEN (US)
HONG LEON L (US)
JOHNSON KEN (US)
HONG LEON L (US)
Application Number:
PCT/US2010/029937
Publication Date:
December 29, 2010
Filing Date:
April 05, 2010
Export Citation:
Assignee:
AIRBIQUITY INC (US)
QUIMBY DAVID (US)
JOHNSON KEN (US)
HONG LEON L (US)
QUIMBY DAVID (US)
JOHNSON KEN (US)
HONG LEON L (US)
International Classes:
H04W52/04; H04M1/72412
Foreign References:
| US5864578A | 1999-01-26 |
Attorney, Agent or Firm:
COFIELD, Michael, A. et al. (Suite 600Portland, OR, US)
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