Methods and apparatus for unsupervised wakeup
AssigneeNuance Communications, Inc.
InventorsDhananjay Bansal, Michael J. Newman, Paul van Mulbregt
Life of this patent
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Abstract
Methods and apparatus for unsupervised wakeup of a device including receiving a first acoustic event at a first time and a second acoustic event at a second time, wherein scores of the first and second acoustic events are above a first threshold identifying the first and second acoustic events as wakeup candidates for a wakeup phrase for an unsupervised wakeup of a device. It is determined that the first acoustic event is above a second threshold, which is higher than the first threshold, and that the second acoustic event is above a third threshold, which is higher than the first threshold. Occurrence of a wakeup event can be determined based upon acoustic similarity of the events.
Claims20
A method, comprising:
- receiving a first acoustic event at a first time and a second acoustic event at a second time, wherein scores of the first and second acoustic events are above a first threshold identifying the first and second acoustic events as wakeup candidates for a wakeup phrase for an unsupervised wakeup of a device;
- determining that the first acoustic event is above a second threshold, which is higher than the first threshold;
- determining that the second acoustic event is above a third threshold, which is higher than the first threshold;
- determining whether the first and second acoustic events are acoustically similar;
- and
- determining that a wakeup event has occurred based upon the determination of acoustic similarity.
An article, comprising:
- a non-transitory computer readable medium having stored instructions that enable a machine to:
- receive a first acoustic event at a first time and a second acoustic event at a second time, wherein scores of the first and second acoustic events are above a first threshold identifying the first and second acoustic events as wakeup candidates for a wakeup phrase for an unsupervised wakeup of a device;
- determine that the first acoustic event is above a second threshold, which is higher than the first threshold;
- determine that the second acoustic event is above a third threshold, which is higher than the first threshold;
- determine whether the first and second acoustic events are acoustically similar;
- and
- determine that a wakeup event has occurred based upon the determination of acoustic similarity.
A system, comprising:
- a processor and a memory configured to:
- receive a first acoustic event at a first time and a second acoustic event at a second time, wherein scores of the first and second acoustic events are above a first threshold identifying the first and second acoustic events as wakeup candidates for a wakeup phrase for an unsupervised wakeup of a device;
- determine that the first acoustic event is above a second threshold, which is higher than the first threshold;
- determine that the second acoustic event is above a third threshold, which is higher than the first threshold;
- determine whether the first and second acoustic events are acoustically similar;
- and
- determine that a wakeup event has occurred based upon the determination of acoustic similarity.
Dependencies are inferred from the claim text.