Navigation service over wireless voice networks
First Claim
1. A method of operating a navigation system comprising:
- in a navigation computer system, receiving first text messaging transmitted by a wireless communication device for a navigation session over a wireless voice link wherein the first text messaging indicates an identity of the wireless communication device, an initial location of the wireless communication device, and a destination location for the wireless communication device;
in the navigation computer system, processing the first text messaging to determine navigation instructions from the initial location to the destination location and to initiate a voice call to the wireless communication device;
in the navigation computer system, receiving second text messaging transmitted by the wireless communication device indicating current locations of the wireless communication device;
in the navigation computer system, processing the second text messaging to select and transfer audio versions of the navigation instructions over the voice call based on the current locations of the wireless communication device.
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Accused Products
Abstract
A wireless communication device transmits first text messaging to a navigation computer system. The first text messaging indicates an identity, initial location, and destination location for the wireless communication device. The navigation computer system processes the first text messaging to determine navigation instructions from the initial location to the destination location and to initiate a voice call to the wireless communication device. The wireless communication device processes a caller number for the voice call to answer the call in speaker-phone mode and to transfer second text messaging to the navigation computer system. The second text messaging indicates current locations of the wireless communication device. The navigation computer system processes the second text messaging to transfer the navigation instructions over the voice call based on the current locations of the wireless communication device. The wireless communication device receives the navigation instructions over the voice call and audibly presents the navigation instructions.
35 Citations
20 Claims
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1. A method of operating a navigation system comprising:
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in a navigation computer system, receiving first text messaging transmitted by a wireless communication device for a navigation session over a wireless voice link wherein the first text messaging indicates an identity of the wireless communication device, an initial location of the wireless communication device, and a destination location for the wireless communication device; in the navigation computer system, processing the first text messaging to determine navigation instructions from the initial location to the destination location and to initiate a voice call to the wireless communication device; in the navigation computer system, receiving second text messaging transmitted by the wireless communication device indicating current locations of the wireless communication device; in the navigation computer system, processing the second text messaging to select and transfer audio versions of the navigation instructions over the voice call based on the current locations of the wireless communication device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A navigation system comprising:
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a wireless communication device configured to determine that navigation is not available over a wireless data network, and in response, prompt the user for a navigation session over a wireless voice link and transmit first text messaging for delivery to a navigation computer system, wherein the first text messaging indicates an identity, an initial location, and a destination location for the wireless communication device; the navigation computer system configured to receive and process the first text messaging to determine navigation instructions from the initial location to the destination location and to initiate a voice call to the wireless communication device; the wireless communication device configured to process a caller number for the voice call, and in response, automatically answer the voice call in speaker-phone mode and transfer second text messaging for delivery to the navigation computer system, wherein the second text messaging indicates current locations of the wireless communication device; the navigation computer system configured to receive and process the second text messaging to select and transfer audio versions of the navigation instructions over the voice call based on the current locations of the wireless communication device; the wireless communication device configured to receive the audio versions of the navigation instructions over the voice call and audibly present the navigation instructions. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification