公开(公告)号：US10186254B2

公开(公告)日：2019-01-22

申请号：US14846667

申请日：2015-09-04

Applicant: Apple Inc.

Inventor： Shaun E. Williams ,  Henry G. Mason ,  Mahesh Krishnamoorthy ,  Matthias Paulik ,  Neha Agrawal ,  Sachin S. Kajarekar ,  Selen Uguroglu ,  Ali S. Mohamed

IPC: G10L15/00 ,  G10L17/00 ,  G10L21/00 ,  G10L15/04 ,  G10L25/87 ,  G10L17/02 ,  G10L25/78

Abstract: The present disclosure generally relates to context-based endpoint detection in user speech input. A method for identifying an endpoint of a spoken request by a user may include receiving user input of natural language speech including one or more words; identifying at least one context associated with the user input; generating a probability, based on the at least one context associated with the user input, that a location in the user input is an endpoint; determining whether the probability is greater than a threshold; and in accordance with a determination that the probability is greater than the threshold, identifying the location in the user input as the endpoint.

公开(公告)号：US09646609B2

公开(公告)日：2017-05-09

申请号：US14835520

申请日：2015-08-25

Applicant: Apple Inc.

Inventor： Devang K. Naik ,  Ali S. Mohamed ,  Hong M. Chen

IPC: G10L13/08 ,  G10L15/183 ,  G10L15/00 ,  G10L15/26 ,  G10L15/06 ,  G10L15/187 ,  G10L15/22

CPC classification number: G10L15/183 ,  G10L13/08 ,  G10L15/005 ,  G10L15/063 ,  G10L15/187 ,  G10L15/26 ,  G10L2015/228

Abstract: Systems and processes for generating a shared pronunciation lexicon and using the shared pronunciation lexicon to interpret spoken user inputs received by a virtual assistant are provided. In one example, the process can include receiving pronunciations for words or named entities from multiple users. The pronunciations can be tagged with context tags and stored in the shared pronunciation lexicon. The shared pronunciation lexicon can then be used to interpret a spoken user input received by a user device by determining a relevant subset of the shared pronunciation lexicon based on contextual information associated with the user device and performing speech-to-text conversion on the spoken user input using the determined subset of the shared pronunciation lexicon.