Location aware directed audio

• US 7,492,913 B2
• Filed: 12/16/2003
• Issued: 02/17/2009
• Est. Priority Date: 12/16/2003
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Dubal, Scott P., Boom, Douglas D., Montecalvo, Mark V., Connor, Patrick L.
• Primary Examiner(s): Chin; Vivian
• Assistant Examiner(s): Paul; Disler
• Application Number:
  US10/739,503
• Publication Number:
  US 20050129254A1
• Time in Patent Office: 1,890 Days
• Field of Search: 381 77- 78, 381/82, 381/310, 381/80, 381/73.1, 600/595
• US Class Current: 381/77
• CPC Class Codes: H04R 1/403 loud-speakers
• CPC Class Codes: H04R 2217/03 Parametric transducers where sound is generated or captured by the acoustic demodulation of amplitude modulated ultrasonic waves
• CPC Class Codes: H04S 7/303 Tracking of listener position or orientation

Abstract

A directed audio system, a network interface communicatively coupled with a network, and a controller to receive, via the network interface, an estimate for a location from a locating device communicatively coupled with the network, and to cause the directed audio system to direct an audio signal based at least in part on an estimate for the location received from the locating device.

Claims

1. An apparatus comprising:

a directed audio system having an array of speakers within a ceiling of a physical region;

a network interface communicatively coupled with a network; and

a controller to receive, via the network interface, an estimate for a location corresponding to a user from a locating device communicatively associated with the user that is coupled with the network; and

the controller coupled with the array of speakers to cause the directed audio system to direct an audio signal by selectively enabling and disabling selected speakers to transmit ultrasonic beams carrying audible content from the array of speakers to provide the audio content to a vertical proximity corresponding to the user and not to other locations within the physical region based on an estimate for the location received from the locating device, wherein one or more of the speakers changes an angle of an ultrasonic beam based on the location of the user, and further wherein the controller manages multiple users by muting or lowering an audio level when two or more users approach each other within a conversational distance.

2. The apparatus of claim 1 wherein the controller is further to cause the directed audio system to direct the audio signal to the location based at least in part on the estimate for the location received from the locating device.

3. The apparatus of claim 2 wherein the network comprises a wireless network.

4. The apparatus of claim 3 wherein the locating device comprises a Global Positioning System (GPS) locating device.

5. The apparatus of claim 4 further comprising a triangulating system communicatively coupled to the network.

6. The system of claim 5 wherein the locating device comprises a locating signal source for the triangulating system.

7. The apparatus of claim 3 further comprising:

a content modifier communicatively coupled to the network to modify the content of the audio signal, the modification based on at least one of

the estimate for the location received from the locating device;

a preference indicated by a user;

an identification associated with the user; and

an identifier associated with the locating device;

wherein the modification is at least one of

selecting the content of the directed audio signal; and

altering a sonic characteristic of the directed audio signal.

8. A method comprising:

receiving a location estimate from a locating device at a location corresponding to a user;

automatically directing an audio signal of a directed audio system having an array of speakers in a ceiling of a physical region based on the location estimate by selectively enabling and disabling selected speakers from the array of speakers to provide audio the location corresponding to the user and not to other locations within the physical region, wherein one or more of the speakers changes an angle of an ultrasonic beam based on the location of the user; and

managing multiple users by muting or lowering an audio level when two or more users approach each other within a conversational distance.

9. The method of claim 8 further comprising directing the audio signal of the directed audio system to the location based at least in part on the location estimate.

10. The method of claim 9 further comprising receiving the location estimate over a wireless network.

11. The method of claim 10 wherein the locating device comprises a Global Positioning System (GPS) locating device.

12. The method of claim 10 wherein the locating device comprises a locating signal source for the triangulating system and wherein the estimate for the location is computed by a triangulating system communicatively coupled to the network.

13. The method of claim 10 further comprising:

performing one or more of;

selecting the content of the directed audio signal; and

altering a sonic characteristic of the directed audio signal depending at least in part on one or more of;

the estimate for the location received from the locating device;

a preference indicated by a user;

an identification associated with the user; and

an identifier associated with the locating device.