Granted Patent B2

US 12,388,539 · App. 18/405,045 · Granted Aug 12, 2025

Inventors: Daniel John Jones (London, GB); James Andrew Nesfield (London, GB)

Assignee: Sonos Experience Limited

H04B11/00

Abstract

Claims (44)

1. A device, comprising:

one or more processors; and

a non-transitory computer-readable medium storing instructions that, when executed by the one or more processors, cause the device to:

segment data into a sequence of symbols, each of the symbols having a preset number of bits;

determine for each symbol of the sequence of symbols three or more tones based on a mapping between symbols and sets of tones selected from tones spread evenly over a frequency spectrum, wherein the mapping includes a mapping between the symbols and a multi-tone Frequency Shift Keying (FSK) signal including three or more tones; and

generate an audio signal based on the determined tones for each symbol of the sequence of symbols.

2. The device of claim 1 , wherein each of the three or more tones for each symbol in the sequence of symbols is at a different frequency.

3. The device of claim 1 , wherein the mapping comprises a bijective mapping.

4. The device of claim 1 , further comprising:

a speaker,

wherein the non-transitory computer-readable medium storing instructions that, when executed by the one or more processors, further cause the device to:

transmit, via the speaker, the generated audio signal.

5. The device of claim 4 , wherein transmit, via the speaker, the generated audio signal comprises:

for each symbol in the sequence of symbols, cause, via the speaker, simultaneous playback of the three or more tones determined for the respective symbol.

6. The device of claim 1 , wherein generate an audio signal based on the three or more tones comprises:

generate a packet for a first set of symbols of the sequence of symbols, wherein the packet comprises a payload comprising the determined three or more tones.

7. The device of claim 6 , wherein the non-transitory computer-readable medium storing instructions that, when executed by the one or more processors, further cause the device to:

transmit, to a speaker, the packet for the first set of symbols of the sequence of symbols.

8. A non-transitory, computer-readable medium storing instructions that, when executed by one or more processors, cause a device to:

segment data into a sequence of symbols, each of the symbols having a preset number of bits;

determine for each symbol of the sequence of symbols three or more tones based on a mapping between symbols and sets of tones selected from tones spread evenly over a frequency spectrum, wherein the mapping includes a mapping between the symbols and a multi-tone Frequency Shift Keying (FSK) signal including three or more tones; and

generate an audio signal based on the determined tones for each symbol of the sequence of symbols.

9. The non-transitory, computer-readable medium of claim 8 , wherein each of the three or more tones for each symbol in the sequence of symbols is at a different frequency.

10. The non-transitory, computer-readable medium of claim 8 , wherein the mapping comprises a bijective mapping.

11. The non-transitory, computer-readable medium of claim 8 , further comprising instructions, that when executed by the one or more processors, cause the device to:

transmit, via a speaker, the generated audio signal.

12. The non-transitory, computer-readable medium of claim 11 , wherein transmit, via the speaker, the generated audio signal comprises:

for each symbol in the sequence of symbols, cause, via the speaker, simultaneous playback of the three or more tones determined for the respective symbol.

13. The non-transitory, computer-readable medium of claim 8 , wherein generate an audio signal based on the three or more tones comprises:

generate a packet for a first set of symbols of the sequence of symbols, wherein the packet comprises a payload comprising the determined three or more tones.

14. The non-transitory, computer-readable medium of claim 13 , further comprising instructions that, when executed by the one or more processors, further cause the device to:

transmit, to a speaker, the packet for the first set of symbols of the sequence of symbols.

15. A method, comprising:

segmenting data into a sequence of symbols, each of the symbols having a preset number of bits;

determining for each symbol of the sequence of symbols three or more tones based on a mapping between symbols and sets of tones selected from tones spread evenly over a frequency spectrum, wherein the mapping includes a mapping between the symbols and a multi-tone Frequency Shift Keying (FSK) signal including three or more tones; and

generating an audio signal based on the determined tones for each symbol of the sequence of symbols.

16. The method of claim 15 , wherein each of the three or more tones for each symbol in the sequence of symbols is at a different frequency.

17. The method of claim 15 , wherein the mapping comprises a bijective mapping.

18. The method of claim 15 , further comprising:

causing, via a speaker, simultaneous playback of the three or more tones determined for the respective symbol for each symbol in the sequence of symbols.

19. The method of claim 15 , wherein generating an audio signal based on the three or more tones comprises:

generating a packet for a first set of symbols of the sequence of symbols, wherein the packet comprises a payload comprising the determined three or more tones.

20. The method of claim 19 , further comprising:

transmitting, to a speaker, the packet for the first set of symbols of the sequence of symbols.

Assignments (1)

Priority Claims (1)

Continuity (2)

References Cited (287)