Systems and methods for adaptive frequency synchronization

1. A method comprising:

receiving transmission segments from at least one device pursuant to a channel-switching schedule, the channel-switching schedule comprising an iteratively-repeated channel sequence;

wherein the iteratively-repeated channel sequence comprises a plurality of channels, the channel-switching schedule specifying an assigned transmission duration for each channel, the assigned transmission duration for each channel comprising a plurality of time segments;

for at least one channel of the plurality of channels, detecting a pattern of interference during at least one of a first time segment and a last time segment of the plurality of time segments of the assigned transmission duration; and

responsive to the detected pattern of interference, automatically shifting, by a specified quantity of time that is less than the assigned transmission duration of the at least one channel, a future channel switch indicated by the iteratively-repeated channel sequence, such that the at least one of the first time segment and the last time segment is added to the assigned transmission duration of a neighboring channel in the iteratively-repeated channel sequence.

2. The method of claim 1 , wherein the automatically shifting comprises delaying the future channel switch by the specified quantity of time.

3. The method of claim 1 , wherein the automatically shifting comprises accelerating the future channel switch by the specified quantity of time.

4. The method of claim 1 , wherein the automatically shifting comprises shifting an entirety of the channel-switching schedule by the specified quantity of time.

5. The method of claim 1 , wherein the automatically shifting comprises synchronizing with the at least one device.

6. The method of claim 1 , wherein the detecting comprises identifying an interference pattern in the plurality of channels.

7. The method of claim 1 , wherein:

the detecting comprises determining interference during a same relative time period of the assigned transmission duration of multiple channels of the plurality of channels; and

the time segment corresponds to the same relative time period.

8. The method of claim 1 , comprising,

for each channel of the plurality of channels, during each iteration of the channel, evaluating a reception quality related to the at least one device's transmissions during each of a plurality of segments of the assigned transmission duration;

wherein the time segment comprises one or more contiguous segments of the plurality of segments of the assigned transmission duration for the at least one channel; and

wherein the detecting comprises determining that the reception quality during the time segment fails to satisfy at least one quality-related criterion.

9. The method of claim 8 , wherein the evaluating comprises performing a data-integrity check.

10. The method of claim 1 , wherein a plurality of receiver devices each independently perform the method such that the at least one device is distinct for each receiver device.

11. The method of claim 10 , wherein each receiver device initially generates a same pseudorandom sequence, the pseudorandom sequence being used as the iteratively-repeated channel sequence.

12. The method claim 1 , wherein the at least one device comprises a plurality of devices.

13. The method of claim 1 , wherein the at least one device comprises a wireless microphone.

14. A system comprising:

at least one processor, wherein the at least one processor is operable to implement a method comprising:

receiving transmission segments from at least one device pursuant to a channel-switching schedule, the channel-switching schedule comprising an iteratively-repeated channel sequence;

wherein the iteratively-repeated channel sequence comprises a plurality of channels, the channel-switching schedule specifying an assigned transmission duration for each channel, the assigned transmission duration for each channel comprising a plurality of time segments;

for at least one channel of the plurality of channels, detecting a pattern of interference during at least one of a first time segment and a last time segment of the plurality of time segments of the assigned transmission duration; and

responsive to the detected pattern of interference, automatically shifting, by a specified quantity of time that is less than the assigned transmission duration of the at least one channel, a future channel switch indicated by the iteratively-repeated channel sequence, such that the at least one of the first time segment and the last time segment is added to the assigned transmission duration of a neighboring channel in the iteratively-repeated channel sequence.

15. The system of claim 14 , wherein the automatically shifting comprises delaying the future channel switch by the specified quantity of time.

16. The system of claim 14 , wherein the automatically shifting comprises accelerating the future channel switch by the specified quantity of time.

17. The system of claim 14 , wherein the automatically shifting comprises shifting an entirety of the channel-switching schedule by the specified quantity of time.

18. The system of claim 14 , wherein the automatically shifting comprises synchronizing with the at least one device.

19. The system of claim 14 , wherein the detecting comprises identifying an interference pattern in the plurality of channels.

20. A computer-program product comprising a non-transitory computer-usable medium having computer-readable program code embodied therein, the computer-readable program code adapted to be executed to implement a method comprising:

receiving transmission segments from at least one device over a plurality of channels pursuant to a channel-switching schedule, the channel-switching schedule comprising an iteratively-repeated channel sequence;

wherein the iteratively-repeated channel sequence comprises a plurality of channels, the channel-switching schedule specifying an assigned transmission duration for each channel the assigned transmission duration for each channel comprising a plurality of time segments;

for at least one channel of the plurality of channels, detecting a pattern of interference during at least one of a first time segment and a last time segment of the plurality of time segments of the assigned transmission duration; and

responsive to the detected pattern of interference, automatically shifting, by a specified quantity of time that is less than the assigned transmission duration of the at least one channel, a future channel switch indicated by the iteratively-repeated channel sequence, such that the at least one of the first time segment and the last time segment is added to the assigned transmission duration of a neighboring channel in the iteratively-repeated channel sequence.