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Method and system for hybrid decoding for enhanced end-user privacy and low latency

  • US 9,761,227 B1
  • Filed: 05/26/2016
  • Issued: 09/12/2017
  • Est. Priority Date: 05/26/2016
  • Status: Expired due to Fees
First Claim
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1. A computer-implemented method of performing automatic speech recognition, the method implemented by a processor executing program instructions stored in memory and comprising:

  • receiving speech recognition result candidates from a user device, the received speech recognition result candidates generated by performing speech recognition on one or more frames of audio data on the user device, the speech recognition on the one or more frames of audio data combining two parallel layers of speech recognition that utilize language models capable of being stored on the user device, wherein the two parallel layers include a command-oriented finite state (FST) based recognizer layer and a Statistical Language Model (SLM) based pre-filter layer configured to utilize device information local to the user device;

    performing speech recognition using the received speech recognition result candidates; and

    transmitting to the user device, via a communications network, results of the speech recognition performed using the received speech recognition result candidates.

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