BEACON SYSTEM TO IMPROVE WIRELESS AUDIO COMMUNICATION BETWEEN HEADSET COMMUNICATION DEVICES

• US 20180227975A1
• Filed: 04/03/2018
• Published: 08/09/2018
• Est. Priority Date: 06/10/2015
• Status: Active Grant

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Kihlberg, Roger, Ekblad, Marcus J.
• Granted Patent: US 10,681,756 B2
• Time in Patent Office: Days
• CPC Class Codes: H04R 2420/07 Applications of wireless loudspeakers or wireless microphones
• CPC Class Codes: H04R 2430/01 Aspects of volume control, not necessarily automatic, in sound systems
• CPC Class Codes: H04R 2460/07 Use of position data from wide-area or local-area positioning systems in hearing devices, e.g. program or information selection
• CPC Class Codes: H04R 5/033 Headphones for stereophonic communication details thereof, e.g. relating to batteries, cables or control elements H04R1/10
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 76/15 Setup of multiple wireless link connections
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 84/20 Master-slave selection or change arrangements

Abstract

A headset communication device includes at least one processor configured to transmit, via a dedicated virtual communication channel of a wireless communication protocol, local beacon data to one or more remote headset communication devices within a work environment, to discover a remote headset communication device included in the one or more remote headset communication devices by receiving, via the dedicated virtual communication channel of the wireless communication protocol, remote beacon data that is transmitted by the remote headset communication device, to automatically synchronize, based on the remote beacon data, the headset communication device with the remote headset communication device, and, to transmit, via one or more additional virtual communication channels of the wireless communication protocol, local audio communication data to the one or more remote headset communication devices.

Claims

1. A headset communication device, comprising:

a computer-readable storage medium; and

at least one processor coupled to the computer-readable storage medium and configured to;

transmit, via a dedicated virtual communication channel of a wireless communication protocol, local beacon data to one or more remote headset communication devices within a work environment, each headset communication device associated with a respective worker within the work environment and being configured to communicate using the wireless communication protocol to enable wireless voice conferencing between the workers without use of a base station;

discover a remote headset communication device included in the one or more remote headset communication devices by receiving, via the dedicated virtual communication channel of the wireless communication protocol, remote beacon data that is transmitted by the remote headset communication device and that is different from the local beacon data;

responsive to discovering the remote headset communication device, automatically synchronize, based on the remote beacon data, the headset communication device with the remote headset communication device; and

after synchronizing the headset communication device with the remote headset communication device, transmit, via one or more additional virtual communication channels of the wireless communication protocol, local audio communication data to the one or more remote headset communication devices.

2. The headset communication device of claim 1, wherein the headset communication device is further configured to:

determine a beacon interval that defines an amount of time between the local beacon data that is transmitted by the headset communication device; and

periodically transmit, via the dedicated virtual communication channel, and based on the beacon interval, the local beacon data to the one or more remote headset communication devices.

3. The headset communication device of claim 2, wherein the beacon interval includes a plurality of frames, and wherein the at least one processor is configured to periodically transmit the local beacon data to the one or more remote headset communication devices based on the beacon interval at least by being configured to:

determine an offset to a beginning of each occurrence of the beacon interval, wherein the offset comprises one or more of the plurality of frames; and

periodically transmit, via the dedicated virtual communication channel, the local beacon data to the one or more remote headset communication devices at the offset to the beginning of each occurrence of the beacon interval.

4. The headset communication device of claim 3, wherein the offset comprises a positive offset of the one or more of the plurality of frames to the beginning of each occurrence of the beacon interval.

5. The headset communication device of claim 3, wherein the at least one processor is configured to determine the offset at least by being configured to determine a random number of the one or more of the plurality of frames offset from the beginning of each occurrence of the beacon interval.

6. The headset communication device of claim 1, wherein the at least one processor is configured to transmit the local beacon data at a different time than the remote headset communication device transmits the remote beacon data.

7. The headset communication device of claim 1, wherein the at least one processor is further configured to:

after synchronizing the headset communication device with the remote headset communication device, determine that a quality of a communication network between the headset communication device and the remote communication device exceeds a defined threshold; and

transmit the local audio communication data to the one or more remote headset communication devices responsive to determining that the quality of the communication network exceeds the defined threshold.

8. The headset communication device of claim 1, wherein the at least one processor is configured to transmit the local audio communication data to the one or more remote headset communication devices at least by being configured to:

determine an available virtual communication channel from the one or more additional virtual communication channels, wherein the available virtual communication channel is currently unused by the one or more remote headset communication devices; and

transmit, via the available virtual communication channel, the local audio communication data to the one or more remote headset communication devices.

9. The headset communication device of claim 1, wherein the remote beacon data comprises first remote beacon data, and wherein the at least one processor is further configured to:

after transmitting the local audio communication data to the one or more remote headset communication devices, determine whether the headset communication device has received second remote beacon data from the remote headset communication device via the dedicated virtual communication channel; and

responsive to determining that the headset communication device has not received second remote beacon data from the remote headset communication device via the dedicated virtual communication channel, refrain from transmitting additional local audio communication data to the one or more remote headset communication devices via the one or more additional virtual communication channels.

10. The headset communication device of claim 9, wherein the at least one processor is configured to determine that the headset communication device has not received the second remote beacon data from the remote headset communication device via the dedicated virtual communication channel at least by being configured to:

determine a beacon interval that defines an amount of time between beacon data that is received from the remote headset communication device; and

determine that the headset communication device has not received, from the remote headset communication device via the dedicated virtual communication channel, a defined number of consecutive beacons that are each separated by the beacon interval, wherein each of the consecutive beacons comprises respective beacon data.

11. The headset communication device of claim 1,

wherein the remote beacon data includes a serial number of the remote headset communication device, and

wherein the at least one processor is configured to synchronize the headset communication device with the remote headset communication device responsive to determining that the serial number of the remote headset communication device is lower than a serial number of the headset communication device.

12. The headset communication device of claim 1, wherein the at least one processor is further configured to:

maintain a local time counter that is used by the headset communication device to control data communication with the one or more remote headset communication devices via the wireless communication protocol;

synchronize the headset communication device with the remote headset communication device by resetting, based on the remote beacon data, the local time counter to match a remote time counter of the remote communication device as indicated by the remote beacon data; and

transmit, via the one or more additional virtual communication channels, and based on the reset local time counter, the local audio communication data to the one or more remote headset communication devices.

13. The headset communication device of claim 1, further comprising a speaker that is coupled to the at least one processor and that is configured to output one or more sound waves, wherein the at least one processor is further configured to:

receive, via the one or more additional virtual communication channels and from the remote headset communication device, remote audio communication data;

determine a distance between the headset communication device and the remote headset communication device;

determine, based on the distance, a volume level; and

provide, for output at the speaker at the determined volume level, the remote audio communication data.

14. The headset communication device of claim 13, further comprising:

a microphone;

a first ear cup; and

a second ear cup coupled to the first ear cup with a headband,

wherein the speaker is disposed in at least one of the first ear cup or the second ear cup.

15. The headset communication device of claim 13, wherein when the at least one processor is configured to determine that the distance between the headset communication device and the remote headset communication device is greater than or equal to a threshold distance, the at least one processor is configured to determine that the volume level is zero.

16. The headset communication device of claim 13, wherein the at least one processor is configured to determine the distance between the headset communication device and the remote headset communication device based on a received signal strength indicator associated with the remote audio communication data.

17. The headset communication device of claim 1, wherein the headset communication device is included in one of a welding mask, a respiration mask, or a hearing protection headset.

18. A computer-readable storage medium storing instructions that, when executed, cause at least one processor of a headset communication device to:

transmit, via a dedicated virtual communication channel of a wireless communication protocol, local beacon data to one or more remote headset communication devices within a work environment, each headset communication device associated with a respective worker within the work environment and being configured to communicate using the wireless communication protocol to enable wireless voice conferencing between the workers without use of a base station;

discover a remote headset communication device included in the one or more remote headset communication devices by receiving, via the dedicated virtual communication channel of the wireless communication protocol, remote beacon data that is transmitted by the remote headset communication device and that is different from the local beacon data;

responsive to discovering the remote headset communication device, automatically synchronize, based on the remote beacon data, the headset communication device with the remote headset communication device; and

after synchronizing the headset communication device with the remote headset communication device, transmit, via one or more additional virtual communication channels of the wireless communication protocol, local audio communication data to the one or more remote headset communication devices.

19. The computer-readable storage medium of claim 18, wherein the instructions further cause the at least one processor of the headset communication device to:

determine a beacon interval that defines an amount of time between the local beacon data that is transmitted by the headset communication device; and

periodically transmit, via the dedicated virtual communication channel, and based on the beacon interval, the local beacon data to the one or more remote headset communication devices.

20. The computer-readable storage medium of claim 19, wherein the beacon interval includes a plurality of frames, and wherein the instructions that cause the at least one processor of the headset communication device to periodically transmit the local beacon data to the one or more remote headset communication devices based on the beacon interval further cause the at least one processor of the headset communication device to:

determine an offset to a beginning of each occurrence of the beacon interval, wherein the offset comprises one or more of the plurality of frames; and

periodically transmit, via the dedicated virtual communication channel, the local beacon data to the one or more remote headset communication devices at the offset to the beginning of each occurrence of the beacon interval.

21. The computer-readable storage medium of claim 20, wherein the instructions that cause the at least one processor of the headset communication device to determine the offset further cause the at least one processor of the headset communication device to determine a random number of the one or more of the plurality of frames offset from the beginning of each occurrence of the beacon interval.

22. The computer-readable storage medium of claim 18, wherein the remote beacon data comprises first remote beacon data, and wherein the instructions further cause the at least one processor of the headset communication device to:

after transmitting the local audio communication data to the one or more remote headset communication devices, determine whether the headset communication device has received second remote beacon data from the remote headset communication device via the dedicated virtual communication channel; and

responsive to determining that the headset communication device has not received second remote beacon data from the remote headset communication device via the dedicated virtual communication channel, refrain from transmitting additional local audio communication data to the one or more remote headset communication devices via the one or more additional virtual communication channels.

23. The computer-readable storage medium of claim 18, wherein the headset communication device further comprises a speaker, and wherein the instructions further cause the at least one processor of the headset communication device to:

receive, via the one or more additional virtual communication channels and from the remote headset communication device, remote audio communication data;

determine a distance between the headset communication device and the remote headset communication device;

determine, based on the distance, a volume level; and

provide, for output at the speaker at the determined volume level, the remote audio communication data.

24. A headset communication device, comprising:

a memory; and

at least one processor coupled to the memory and configured to;

transmit, via a wireless communication protocol, first communication data to one or more remote headset communication devices within an environment, each headset communication device being associated with a respective user within the work environment and being configured to communicate using the wireless communication protocol to enable voice communication between the users without use of a base station;

receive, via the communication protocol, second communication data that is transmitted by a remote headset communication device included in the one or more remote headset communication devices;

responsive to determining that the second communication data includes a defined signal, synchronize the headset communication device with the remote headset communication device by resetting an internal time counter to match a time counter of the remote headset communication device as indicated by the defined signal; and

after synchronizing the headset communication device with the remote headset communication device, transmit, via the wireless communication protocol, third communication data to the one or more remote headset communication devices.

25. The headset communication device of claim 24, further comprising:

a speaker coupled to the at least one processor, wherein the speaker is configured to output a sound wave based on an output from the at least one processor;

a first ear cup; and

a second ear cup coupled to the first ear cup with a headband,

wherein the speaker is disposed in at least one of the first ear cup or the second ear cup,

wherein the at least one processor is configured to determine a distance between the headset communication device and the remote headset communication device, and

wherein a volume of the sound wave is reduced in proportion to the distance between the headset communication device and the remote headset communication device.

26. The headset communication device of claim 25, wherein when the distance is greater than or equal to a threshold distance, the volume is zero.

27. The headset communication device of claim 25, wherein the distance is calculated using a received signal strength indicator.

28. The headset communication device of claim 24, wherein the defined signal is included in a data header of the second communication data that is sent from the remote communication device.

29. The headset communication device of claim 24, wherein the headset communication device is included in one of a welding mask, a respiration mask, or a hearing protection headset.