AUTOMATIC GAIN CONTROL IN A NAVIGATION DEVICE
First Claim
1. A memory device having instructions stored thereon that, in response to execution by a processing device, cause the processing device to perform operations comprising:
- transmitting communications to pass through a Bluetooth connection between a navigation device and a mobile phone and a wireless voice channel of a wireless telecommunications network associated with the mobile phone;
inputting a digital bit sequence into a modulator to generate an audio signal that has different frequency tones for different bit values, wherein the frequency tones are selected to pass through the wireless voice channel unobstructed by vocoders operating within the wireless telecommunications network;
using the modulator, generating and sending a first transmission according to a first transmit-side power gain amount;
using the modulator, generating and sending a second transmission according to a second different transmit-side power gain amount;
receiving back a response indicating receive-side power gain amounts for the first and second transmissions;
determining a third transmit-side power gain amount by analyzing the response; and
using the modulator, generating and sending a third transmission according to the third transmit-side power gain amount.
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Accused Products
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.
13 Citations
16 Claims
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1. A memory device having instructions stored thereon that, in response to execution by a processing device, cause the processing device to perform operations comprising:
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transmitting communications to pass through a Bluetooth connection between a navigation device and a mobile phone and a wireless voice channel of a wireless telecommunications network associated with the mobile phone; inputting a digital bit sequence into a modulator to generate an audio signal that has different frequency tones for different bit values, wherein the frequency tones are selected to pass through the wireless voice channel unobstructed by vocoders operating within the wireless telecommunications network; using the modulator, generating and sending a first transmission according to a first transmit-side power gain amount; using the modulator, generating and sending a second transmission according to a second different transmit-side power gain amount; receiving back a response indicating receive-side power gain amounts for the first and second transmissions; determining a third transmit-side power gain amount by analyzing the response; and using the modulator, generating and sending a third transmission according to the third transmit-side power gain amount. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method, comprising:
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transmitting communications to pass through a Bluetooth connection between a navigation device and a mobile phone and a wireless voice channel of a wireless telecommunications network associated with the mobile phone; inputting a digital bit sequence into a modulator to generate an audio signal that has different frequency tones for different bit values, wherein the frequency tones are selected to pass through the wireless voice channel unobstructed by vocoders operating within the wireless telecommunications network; using the modulator, generating and sending a first transmission according to a first transmit-side power gain amount; using the modulator, generating and sending a second transmission according to a second different transmit-side power gain amount; receiving back a response indicating receive-side power gain amounts for the first and second transmissions; determining a third transmit-side power gain amount by analyzing the response; and using the modulator, generating and sending a third transmission according to the third transmit-side power gain amount. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification