IN-VEHICLE SYSTEM (IVS) CONTROL OF EMERGENCY DATA COMMUNICATIONS
First Claim
1. A communications method comprising:
- in a mobile system, detecting an available wireless telecommunication network;
registering with the detected carrier;
detecting an emergency event;
capturing and storing data descriptive of the emergency event;
initiating a wireless voice call session on the wireless telecommunication network to a selected call taker service;
after the voice call session is established, automatically transmitting a predetermined control signal in the voice channel, wherein the control signal comprises at least one audio frequency tone selected within the range of human voice to avoid corruption by voice coding elements of the wireless telecommunication network;
receiving an acknowledge signal from the selected call taker service indicating that the service is ready to receive data;
responsive to the acknowledge signal, transmitting the stored data in the voice channel session by using an in-band signaling modem technique to avoid corruption by voice coding elements of the digital wireless telecommunication network.
5 Assignments
0 Petitions
Accused Products
Abstract
An in-vehicle system (IVS) captures data such as location data and in an emergency automatically places a call to an emergency call taker or PSAP via a wireless telecommunications network. After a voice call session is established, the IVS system transmits a predetermined control signal through the voice channel. The control signal directs the call taker system to prepare to receive data. Preferably, the control signal comprises at least one audio frequency tone. This may be done without human intervention. In this way, emergency information is transmitted accurately and with minimum delay. After transmission of essential information, the IVS system may switch on audio connections for live human voice conversation.
57 Citations
25 Claims
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1. A communications method comprising:
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in a mobile system, detecting an available wireless telecommunication network; registering with the detected carrier; detecting an emergency event; capturing and storing data descriptive of the emergency event; initiating a wireless voice call session on the wireless telecommunication network to a selected call taker service; after the voice call session is established, automatically transmitting a predetermined control signal in the voice channel, wherein the control signal comprises at least one audio frequency tone selected within the range of human voice to avoid corruption by voice coding elements of the wireless telecommunication network; receiving an acknowledge signal from the selected call taker service indicating that the service is ready to receive data; responsive to the acknowledge signal, transmitting the stored data in the voice channel session by using an in-band signaling modem technique to avoid corruption by voice coding elements of the digital wireless telecommunication network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A computer program product for an in-vehicle platform, comprising:
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a computer usable medium having computer program code recorded thereon for controlling a processor, the computer program code including computer program code means for detecting an emergency event in the vehicle; computer program code means for capturing and storing data descriptive of the emergency event; computer program code means for initiating a wireless voice call session on a wireless telecommunication network to a call taker; computer program code means for automatically transmitting a predetermined control signal in the voice channel, wherein the control signal comprises at least one audio frequency tone selected within the range of human voice to avoid corruption by voice coding elements of the wireless telecommunication network; computer program code means for receiving an acknowledge signal in the voice call session indicating that the call taker is ready to receive data; and computer program code means for, responsive to the acknowledge signal, transmitting the stored data through the voice channel session by using an in-band signaling modem technique to avoid corruption by voice coding elements of the digital wireless telecommunication network. - View Dependent Claims (13, 14, 15, 16)
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17. An in-vehicle system for emergency communications comprising:
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a digital processor; an emergency event detector arranged to communicate with the processor; a GPS receiver arranged to provide location information to the processor; a memory coupled to the processor for storing program code and or data; a wireless telecommunications module arranged for interacting with a wireless telecommunications network as a mobile terminal unit and operatively coupled to the processor; an in-band modem coupled to the processor or executable as software on the processor and operatively coupled to the wireless telecommunications module for transmitting data in the voice channel during a wireless voice session; and application software for controlling the system to transmit a control signal in the voice channel to configure a call taker system to prepare to receive data transmitted in-band during the voice call session. - View Dependent Claims (18, 19, 20)
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21. In a motor vehicle having a control system including a digital processor, an emergency event detector arranged to communicate with the processor, a GPS receiver arranged to provide location information to the processor, a memory coupled to the processor for storing program code and or data, and a wireless telecommunications module arranged for interacting with a wireless telecommunications network as a mobile terminal unit and operatively coupled to the processor, a method for emergency communications comprising the steps of:
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responsive to detecting an emergency event, automatically initiating a wireless phone call session via the wireless telecommunications module to a selected destination call taker system; after the call session is established, transmitting a predetermined control signal in the voice channel to configure the call taker system to prepare to receive data; and then transmitting emergency data including a location of the vehicle in the voice channel from the motor vehicle to the call taker system, wherein the data is encoded into audio frequency tones by an in-band modem arranged to avoid corruption of the data due to voice coding. - View Dependent Claims (22, 23, 24, 25)
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Specification