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Methods and apparatus for post-processing speech recognition results of received radio voice messages onboard an aircraft

  • US 10,157,616 B2
  • Filed: 12/19/2016
  • Issued: 12/18/2018
  • Est. Priority Date: 12/19/2016
  • Status: Active Grant
First Claim
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1. A method for displaying received radio voice messages onboard an aircraft, the method comprising:

  • receiving, via a radio onboard the aircraft, a plurality of ground control messages comprising speech data; and

    processing the speech data using a speech recognition (SR) device onboard the aircraft, to generate SR results, by at least one processor onboard the aircraft;

    comparing a set of SR hypothetical data to stored identifying information associated with the aircraft, the set of SR hypothetical data comprising the SR results for the plurality of ground control messages received onboard the aircraft;

    determining a confidence level associated with accuracy of the set of SR hypothetical data;

    when the confidence level is not greater than a predetermined threshold,determining that one of the plurality of ground control messages comprises a received radio communication including a partial identifier for the aircraft; and

    post-processing the set of speech recognition (SR) hypothetical data to increase accuracy of the SR device, by the at least one processor, wherein the post-processing is performed by;

    obtaining, by the at least one processor, secondary source data from a plurality of secondary sources, wherein the secondary source data comprises at least one of airline databases including an airline code mapped to a corresponding airline name, Aircraft Situation Display to Industry (ASDI) derived historic data, a regulatory registration database, a manufacturer database, ASDI real-time data feeds to the aircraft, Automatic Dependent Surveillance-Broadcast (ADS-B) data received by the aircraft, Traffic Information Service-Broadcast (TIS-B) data, Aircraft Communications Addressing and Reporting System (ACARS) data, Notices to Airmen (NOTAM) data, and Automatic Terminal Information Service (ATIS) data;

    comparing the set of SR hypothetical data including the partial identifier to a plurality of aircraft identifiers found in the secondary source data, by the at least one processor;

    identifying, by the at least one processor, one of the plurality of aircraft identifiers using the set of SR hypothetical data and the secondary source data;

    determining that the set of SR hypothetical data including the partial identifier indicates the aircraft, by the at least one processor; and

    correcting the set of SR hypothetical data corrects the set of SR hypothetical data including the partial identifier, based on the secondary source data, to generate a corrected set of SR hypothetical data;

    presenting transcriptions of the plurality of ground control messages received onboard the aircraft, wherein the plurality of ground control messages are directed to a set of aircraft including at least the aircraft;

    identifying, by the at least one processor, a subset of the plurality of ground control messages including the one of the plurality of aircraft identifiers that indicates the aircraft; and

    presenting, via a display device onboard the aircraft, the subset using distinguishing visual characteristics, such that the subset of the plurality of ground control messages applicable to the aircraft are visually distinguishable from a remainder of the plurality of ground control messages directed to other aircraft of the set of aircraft.

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