Error detection and correction for audio cache

Patent metadata

Field	Value
Publication number	US-12423351-B2
Application number	US-202418677605-A
Country	US
Kind code	B2
Filing date	May 29, 2024
Priority date	Apr 3, 2020
Publication date	Sep 23, 2025
Grant date	Sep 23, 2025

Abstract

An audio file associated with a user voice query may be received at a user device. The audio file may be compared to a plurality of references, such as cache entries, corresponding to a plurality of other voice queries. Based on a determination that the voice query corresponds to one of the references, an operation associated with the voice query may be executed. An indication may be received that the operation was not an intended operation associated with the voice query. Based on receiving this indication, the incorrectly identified operation, associated reference, e.g., voice query, may be disabled for the user or the device. However, the cache entry may remain enabled for one or more of a plurality of other devices.

First claim

The invention claimed is:

1. An apparatus comprising:
one or more processors; and
memory storing a set of computer-executable instructions that, when executed by the one or more processors, cause the apparatus to:
receive an audio file associated with a voice query;
compare the audio file to a plurality of cache entries;
cause, based on a cache entry of the plurality of cache entries, execution of an operation associated with the voice query;
receive an indication that the operation was not an intended operation associated with the voice query; and
determine, based on receiving the indication, to disable the cache entry for the apparatus, wherein the cache entry remains enabled for one or more other devices.

2. The apparatus of claim 1 , wherein each of the plurality of cache entries comprises an audio fingerprint corresponding to a known voice query.

3. The apparatus of claim 2 , wherein comparing the audio file to the plurality of cache entries comprises comparing an audio fingerprint associated with the audio file to the audio fingerprints associated with each of the plurality of cache entries.

4. The apparatus of claim 1 , wherein receiving the indication comprises receiving at least one other audio file within a time frame of receiving the audio file associated with the voice query.

5. The apparatus of claim 1 , wherein receiving the indication comprises receiving a request for a channel change within a time frame of receiving the audio file associated with the voice query.

6. The apparatus of claim 1 , wherein causing execution of the operation associated with the voice query comprises determining that the audio file corresponds to the cache entry and performing an operation associated with the corresponding cache entry.

7. The apparatus of claim 1 , wherein determining to disable the cache entry comprises at least one of: deleting the cache entry, preventing access to the cache entry, marking the cache entry to indicate it is disabled, or setting a flag associated with the cache entry.

8. The apparatus of claim 1 , wherein the set of computer-executable instructions, when executed by the one or more processors, further cause the apparatus to:
send the audio file to a server for processing;
receive an audio transcription based on the audio file associated with the voice query;
determine that the audio transcription corresponds to the cache entry; and
determine, based on receiving the indication, and based on determining that the audio transcription associated with the voice query corresponds to the cache entry, not to disable the cache entry for the apparatus.

9. The apparatus of claim 1 , wherein the set of computer-executable instructions, when executed by the one or more processors, further cause the apparatus to:
determine that there has been an update to one or more of the plurality of cache entries; and
enable the cache entry for the apparatus.

10. An apparatus comprising:
one or more processors; and
memory storing a set of computer-executable instructions that, when executed by the one or more processors, cause the apparatus to:
receive an audio file associated with a voice query;
cause, based on a comparison of the audio file to a plurality of cache entries, execution of an operation associated with the voice query; and
determine, based on an indication that the operation was not an intended operation associated with the voice query, to disable a cache entry of the plurality of cache entries.

11. The apparatus of claim 10 , wherein each of the plurality of cache entries comprises an audio fingerprint corresponding to a known voice query.

12. The apparatus of claim 10 , wherein receiving the indication comprises receiving at least one other audio file within a time frame of receiving the audio file associated with the voice query.

13. The apparatus of claim 10 , wherein receiving the indication comprises receiving a request for a channel change within a time frame of receiving the audio file associated with the voice query.

14. The apparatus of claim 10 , wherein causing execution of the operation associated with the voice query comprises determining that the audio file corresponds to the cache entry and performing an operation associated with the corresponding cache entry.

15. The apparatus of claim 10 , wherein the cache entry is disabled for a particular device, wherein the cache entry remains enabled for one or more other devices, and wherein the device and the one or more other devices are associated with a content server.

16. The apparatus of claim 10 , wherein the set of computer-executable instructions, when executed by the one or more processors, further cause the apparatus to:
send the audio file to a server for processing;
receive an audio transcription based on the audio file associated with the voice query;
determine that the audio transcription corresponds to the cache entry; and
determine, based on receiving the indication, and based on determining that the audio transcription associated with the voice query corresponds to the cache entry, not to disable the cache entry.

17. The apparatus of claim 10 , wherein the set of computer-executable instructions, when executed by the one or more processors, further cause the apparatus to:
determine that there has been an update to one or more of the plurality of cache entries; and
enable the cache entry.

18. The apparatus of claim 10 , wherein determining to disable the cache entry comprises at least one of: deleting the cache entry, preventing access to the cache entry, marking the cache entry to indicate it is disabled, or setting a flag associated with the cache entry.

19. A non-transitory computer-readable medium comprising a set of instructions that, when executed by one or more processors, cause:
receiving, at a device, an audio file associated with a voice query;
comparing the audio file to a plurality of cache entries;
executing, based on a cache entry of the plurality of cache entries, an operation associated with the voice query;
receiving an indication that the operation was not an intended operation associated with the voice query; and
determining, based on receiving the indication, to disable the cache entry for the device, wherein the cache entry remains enabled for one or more other devices.

20. The non-transitory computer-readable medium of claim 19 , wherein each of the plurality of cache entries comprises an audio fingerprint corresponding to a known voice query.

21. The non-transitory computer-readable medium of claim 19 , wherein comparing the audio file to the plurality of cache entries comprises comparing an audio fingerprint associated with the audio file to the audio fingerprints associated with each of the plurality of cache entries.

22. The non-transitory computer-readable medium of claim 19 , wherein receiving the indication comprises receiving at least one other audio file within a time frame of receiving the audio file associated with the voice query.

23. The non-transitory computer-readable medium of claim 19 , wherein receiving the indication comprises receiving a request for a channel change within a time frame of receiving the audio file associated with the voice query.

24. The non-transitory computer-readable medium of claim 19 , wherein executing the operation associated with the voice query comprises determining that the audio file corresponds to the cache entry and performing an operation ass

Assignees

• Comcast Cable Comm Llc

Inventors

• Min Rui
• Deichmann Stefan
• Wang Hongcheng

Classifications

• G10L19/018

  Audio watermarking, i.e. embedding inaudible data in the audio signal · CPC title

• G06F16/24552

  Database cache management · CPC title

• G10L15/26

  Speech to text systems (G10L15/08 takes precedence) · CPC title

• G06F16/634 Primary

  Query by example, e.g. query by humming · CPC title