Locating connected devices

• US 10,039,074 B1
• Filed: 07/06/2017
• Issued: 07/31/2018
• Est. Priority Date: 07/06/2017
• Status: Active Grant

• Current Assignee: Bose Corporation
• Original Assignee: Bose Corporation
• Inventors: Sargent, Daniel H.
• Primary Examiner(s): Washington, Erika
• Application Number:
  US15/643,052
• Time in Patent Office: 390 Days
• Field of Search: None
• CPC Class Codes: G01S 5/18 using ultrasonic, sonic, or infrasonic waves
• CPC Class Codes: G01S 5/28 by co-ordinating position lines of different shape, e.g. hyperbolic, circular, elliptical or radial
• CPC Class Codes: G01S 5/30 Determining absolute distances from a plurality of spaced points of known location
• CPC Class Codes: H04B 17/318 Received signal strength
• CPC Class Codes: H04W 4/023 using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Abstract

Aspects of the present disclosure provide a first apparatus comprising a transmitter, a receiver, a processor, and a UI. The transmitter is configured to command a second apparatus to emit at least one tone. The receiver is configured to receive the at least one tone. The processor is configured to determine at least one of: a signal strength and a direction associated with the at least one tone. The UI is configured to output an indication of a current location of the second apparatus based, at least in part, on the determined signal strength or the determined direction. According to an example, at least one of the request or the at least one tone may be a high-frequency or ultrasonic signal.

Claims

1. A first apparatus comprising:

a transmitter configured to command a second apparatus to emit at least one tone;

a receiver configured to receive the at least one tone;

a processor configured to determine at least one of;

a signal strength and a direction associated with the at least one tone; and

a user interface (UI) configured to output an indication of a relative signal strength or the direction associated with the at least one received tone as the first apparatus moves, wherein the indication outlines a discovered area and wherein a most uncovered portion of the discovered area indicates a current location of the second apparatus.

2. The first apparatus of claim 1,

wherein the processor is further configured to determine a wireless connection loss between the first apparatus and the second apparatus, and

the transmitter is configured to command the second apparatus to emit the at least one tone in response to the determined loss of connection.

3. The first apparatus of claim 1, wherein the UI is configured to receive a request to command the second apparatus to emit the at least one tone.

4. The first apparatus of claim 1, wherein outputting the indication of the current location of the second apparatus comprises:

outputting a display of the current location relative a location of the first apparatus.

5. The first apparatus of claim 4, wherein:

the receiver is configured to receive at least a second tone from the second apparatus,

the processor is configured to determine at least one of;

a signal strength and direction associated with the second tone; and

the UI is configured to update the display of the current location relative to the location of the first apparatus, at least in part, on the determined signal strength or the determined direction associated with the second tone.

6. The first apparatus of claim 4, wherein:

the UI is further configured to update the display of the current location as a location of the first apparatus changes.

7. The first apparatus of claim 6, wherein updating the display comprises:

varying a height of one of more displayed bars as the location of the first apparatus changes, wherein the height of the one or more displayed bars correlates to the current location relative to the location of the first apparatus.

8. The first apparatus of claim 1,

wherein the processor is configured to determine the first apparatus is less than a threshold distance away from the second apparatus;

and

in response to the determination, the transmitter is configured to transmit an indication to the second apparatus to provide assistance information to the first apparatus.

9. The first apparatus of claim 8, wherein the assistance information comprises a request for the second apparatus to transmit one or more audible signals, a request for the second apparatus to emit one or more visual signals, or a request for the second apparatus to output one or more vibrations.

10. The first apparatus of claim 1, wherein the at least one tone comprises one or more ultrasonic tones.

11. A method for locating a second apparatus by a first apparatus, comprising:

transmitting a request for the second apparatus to emit at least one tone;

receiving at least one tone responsive to the request;

determining at least one of;

a signal strength and direction associated with the received at least one tone; and

outputting an indication of a relative signal strength or the direction associated with the at least one received tone as the first apparatus moves, wherein the indication outlines a discovered area and wherein a most uncovered portion of the discovered area indicates a current location of the second apparatus.

12. The method of claim 11, further comprising:

determining a wireless link loss between the first apparatus and the second apparatus,

wherein transmitting the request is responsive to determining the wireless link loss.

13. The method of claim 11, wherein outputting the indication of the current location of the second apparatus comprises:

outputting a display of the current location relative a location of the first apparatus.

14. The method of claim 13, further comprising:

receiving at least a second tone from the second apparatus;

determining at least one of;

a signal strength and direction associated with the second tone; and

updating the display of the current location relative to the location of the first apparatus, at least in part, on the determined signal strength or the determined direction associated with the second tone.

15. The method of claim 13, further comprising:

updating the display of the current location as a location of the first apparatus changes.

16. The method of claim 11, further comprising:

determining the first apparatus is less than a threshold distance away from the second apparatus; and

in response to determining the first apparatus is less than the threshold distance away, transmitting an indication to the second apparatus to provide assistance information to the first apparatus.

17. The method of claim 16, wherein the assistance information comprises a request for the second apparatus to transmit one or more audible signals, a request for the second apparatus to emit one or more visual signals, or a request for the second apparatus to output one or more vibrations.

18. A first apparatus, comprising:

a processor and memory comprising instructions which, when executed by the processor, cause the first apparatus to;

receive an ultrasonic tone from a second apparatus;

determine at least one of;

a signal strength and direction associated with the tone; and

output an indication of a relative signal strength or the direction associated with the at least one received tone as the first apparatus moves, wherein the indication outlines a discovered area and wherein a most uncovered portion of the discovered area indicates a current location of the second apparatus, wherein the discovered area iteratively updates based, at least in part, on a location of the first apparatus.

19. The first apparatus of claim 18, wherein determining the signal strength or direction comprises:

repeatedly determining the signal strength or direction as the first apparatus changes locations.

20. The first apparatus of claim 18, further comprising:

determining the first apparatus is less than a threshold distance away from the second apparatus; and

in response to determination, transmitting a request to the second apparatus to provide assistance information to the first apparatus, wherein the assistance information comprises at least one of an audible signal, a visual signal, or a vibration.