Remotely activatable locator system and method using a wireless location system

1. A method for locating an entity attached to a locator device, wherein the locator device is configured to be in a standby state and to enter an active state upon receiving an activation message, wherein during the standby state the locator device is able to communicate with a cellular network over a control channel of the cellular network while maintaining a low power state, the method comprising:

receiving, at the locator device, an activation message over a control channel of a cellular network;

authenticating the message;

determining whether emergency activation has been authorized;

if emergency activation has not been authorized, performing at least one of (1) initiating a voice channel call, over a voice channel of the cellular network, by calling a predetermined number, and (2) performing an over the air update of the locator device;

if emergency activation has been authorized, automatically initiating a voice channel call over a voice channel of the cellular network, wherein the voice channel call is a public assistance or emergency call;

responsive to determining that the voice channel call has been answered, playing a prerecorded audible message providing information about the entity;

sending a confirmation message to a party that transmitted the activation message confirming that the voice channel call has been placed by the locator device; and

determining that the voice channel call has been answered, and in response to determining that the voice channel call has been answered, transmitting information about the entity;

wherein the locator device comprises a radio communications device configured to communicate with the cellular network, wherein the cellular network comprises at least one of a time and frequency division multiplexed (TDMA/FDMA) radio communications system and a code-division radio communications system.

2. The method of claim 1 , further comprising remotely updating the locator device.

3. The method of claim 1 , further comprising transmitting a status of the locator device to an operation center over the control channel of the cellular network.

4. The method of claim 1 , further comprising initiating, by the locator device, a multiparty call between a party answering the voice channel call and the party that transmitted the activation message.

5. The method of claim 1 , further comprising sending a confirmation message to the party that transmitted the activation message confirming that the voice channel call has been placed.

6. The method of claim 1 , wherein the voice channel call is placed to a public safety answering point.

7. The method of claim 1 , further comprising playing a prerecorded audible message providing contact information to the party that transmitted the activation message.

8. The method of claim 1 , further comprising, responsive to a status indicating that a power source of the locator device is low, transmitting a remote notification to a party that the power source is low.

9. A locator device comprising:

an electronic module configured to perform the following process:

receiving, at the locator device, an activation message over a control channel of a cellular network;

responsive to receiving the activation message, automatically authenticating the activation message and, upon authentication of the activation message, determining whether emergency activation has been authorized;

if emergency activation has not been authorized, performing at least one of (1) initiating a voice channel call, over a voice channel of the cellular network, by calling a predetermined number, and (2) performing an over the air update of the locator device;

if emergency activation has been authorized, automatically initiating the voice channel call over a voice channel of the cellular network, wherein the voice channel call is a public assistance or emergency call; and

sending a confirmation message to a party that transmitted the activation message confirming that the voice channel call has been placed by the locator device;

wherein the locator device is configured to communicate with a cellular network comprising at least one of a time and frequency division multiplexed (TDMA/FDMA) radio communications system and a code-division radio communications system;

wherein the locator device is configured to be in a standby state and to enter an active state upon receiving a properly authenticated activation message; and

wherein during the standby state the locator device is able to communicate with the cellular network over a control channel of the cellular network while maintaining a low power state.

10. The locator device of claim 9 , further comprising a processor for initiating a multiparty call between a party answering the voice channel call and the party transmitting the activation message.

11. The locator device of claim 9 disguised as an accessory item.

12. The locator device of claim 9 , further comprising a global positioning system component.

13. The locator device of claim 9 , further comprising a processor for returning the device to lower power inactive mode.

14. A system for locating an entity, comprising:

a wireless location system;

a locator device attachable to the entity, wherein the locator device is configured to perform the following process:

receiving, at the locator device, an activation message over a control channel of a cellular network;

responsive to receiving the activation message, automatically authenticating the activation message and, upon authentication of the activation message, determining whether emergency activation has been authorized;

if emergency activation has not been authorized, performing at least one of (1) initiating a voice channel call, over a voice channel of the cellular network, by calling a predetermined number, and (2) performing an over the air update of the locator device;

if emergency activation has been authorized, automatically initiating a voice channel call over a voice channel of the cellular network, wherein the voice channel call is a public assistance or emergency call, and wherein the voice channel call enables location of the locator device by the wireless location system; and

sending a confirmation message to a party that transmitted the activation message confirming that the voice channel call has been placed by the locator device;

wherein the locator device is configured to communicate with a cellular network comprising at least one of a time and frequency division multiplexed (TDMA/FDMA) radio communications system and a code-division radio communications system;

wherein the locator device is configured to remain in a standby state and to enter an active state upon receiving a properly authenticated activation message; and

wherein during the standby state the locator device is able to communicate with the cellular network over a control channel of the cellular network while maintaining a low power state.

15. The system of claim 14 , further comprising means for authenticating the message.

16. The system of claim 14 , further comprising means for playing a prerecorded audible message providing information about the entity to be located in response to determining that the voice channel call has been answered.

17. The system of claim 14 , further comprising means for remotely updating the locator device.

18. The system of claim 14 , further comprising means for transmitting a status of the locator device to an operation center over the control channel of the cellular network.

19. The system of claim 14 , further comprising means for initiating a multiparty call between a party answering the voice channel call and the party that transmitted the activation message.

20. The system of claim 14 , further comprising means for sending a confirmation message to the party that transmitted the activation message confirming that the voice channel call has been placed.

21. The system of claim 14 , wherein the voice channel call is placed to a public safety answering point.

22. The system of claim 14 , further comprising means for playing a prerecorded audible message providing contact information to the party that transmitted the activation message.

23. The system of claim 14 , further comprising means for transmitting a remote notification to a party that the power source is low.

24. The system of claim 14 , wherein the locator device further comprises memory for storing a prerecorded audible message; and a processor for playing the prerecorded audible message in response to determining that the voice channel call has been answered.

25. The system of claim 14 , wherein the locator device further comprises memory for storing identifying information of a subscriber associated with the locator device.

26. The system of claim 14 , wherein the locator device further comprises a processor configured to initiate a multiparty call between a party answering the voice channel call and the party transmitting the activation message.

27. The system of claim 14 , wherein the locator device is disguised as an accessory item.

28. The system of claim 14 , wherein the locator device further comprises a global positioning system component.

29. The system of claim 14 , wherein the locator device further comprises a processor configured to return the device to lower power inactive mode.