Patents by Inventor Keith P. Braho

Keith P. Braho has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240169983
    Abstract: Various embodiments described herein relate to generating and/or employing an expected next prompt to reduce response time for a voice system. In this regard, a candidate audio signal is generated for a predicted prompt to be presented via a user audio device. Additionally, in response to audio response data provided by the user audio device, the predicted prompt is compared to a prompt associated with the audio response data. In response to a determination that the predicted prompt matches the prompt, the candidate audio signal is presented via the user audio device.
    Type: Application
    Filed: November 17, 2022
    Publication date: May 23, 2024
    Inventor: Keith P. Braho
  • Publication number: 20180310108
    Abstract: A system directs boom microphone placement. A microphone is configured to capture speech audio from a user and output corresponding electrical signals. A proximity sensor is situated adjacent the microphone and configured to produce output signals representative of a distance from the microphone to the user's face or mouth. A headset assembly includes a boom carrying the microphone and the proximity sensor, where the boom can be adjusted to a plurality of positions adjacent the user's face or mouth. Processing circuitry is coupled to receive the output signals from the proximity sensor and produce an output indicative that the microphone is outside a prescribed distance or range of distances from the user's face or mouth.
    Type: Application
    Filed: April 21, 2017
    Publication date: October 25, 2018
    Inventors: Richard Sharbaugh, Ryan A. Zoschg, Keith P. Braho
  • Patent number: 9928829
    Abstract: Methods are disclosed for identifying possible errors made by a speech recognition system without using a transcript of words input to the system. A method for model adaptation for a speech recognition system includes determining an error rate, corresponding to either recognition of instances of a word or recognition of instances of various words, without using a transcript of words input to the system. The method may further include adjusting an adaptation, of the model for the word or various models for the various words, based on the error rate. Apparatus are disclosed for identifying possible errors made by a speech recognition system without using a transcript of words input to the system. An apparatus for model adaptation for a speech recognition system includes a processor adapted to estimate an error rate, corresponding to either recognition of instances of a word or recognition of instances of various words, without using a transcript of words input to the system.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: March 27, 2018
    Assignee: Vocollect, Inc.
    Inventors: Keith P. Braho, Jeffrey P. Pike, Lori A. Pike
  • Patent number: 9299344
    Abstract: Audio frames are classified as either speech, non-transient background noise, or transient noise events. Probabilities of speech or transient noise event, or other metrics may be calculated to indicate confidence in classification. Frames classified as speech or noise events are not used in updating models (e.g., spectral subtraction noise estimates, silence model, background energy estimates, signal-to-noise ratio) of non-transient background noise. Frame classification affects acceptance/rejection of recognition hypothesis. Classifications and other audio related information may be determined by circuitry in a headset, and sent (e.g., wirelessly) to a separate processor-based recognition device.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: March 29, 2016
    Assignee: Intermec IP Corp.
    Inventors: Keith P. Braho, David D. Hardek
  • Patent number: 9202458
    Abstract: A method for model adaptation for a speech recognition system includes determining an error rate, corresponding to either recognition of instances of a word or recognition of instances of various words, without using a transcript of words input to the system. The method may further include adjusting an adaptation, of the model for the word or various models for the various words, based on the error rate. Apparatus are disclosed for identifying possible errors made by a speech recognition system without using a transcript of words input to the system. An apparatus for model adaptation for a speech recognition system includes a processor adapted to estimate an error rate, corresponding to either recognition of instances of a word or recognition of instances of various words, without using a transcript of words input to the system. The apparatus may further include a controller adapted to adjust an adaptation of the model for the word or various models for the various words, based on the error rate.
    Type: Grant
    Filed: October 11, 2010
    Date of Patent: December 1, 2015
    Assignee: Vocollect, Inc.
    Inventors: Keith P. Braho, Jeffrey P. Pike, Lori A. Pike
  • Publication number: 20150302853
    Abstract: Audio frames are classified as either speech, non-transient background noise, or transient noise events. Probabilities of speech or transient noise event, or other metrics may be calculated to indicate confidence in classification. Frames classified as speech or noise events are not used in updating models (e.g., spectral subtraction noise estimates, silence model, background energy estimates, signal-to-noise ratio) of non-transient background noise. Frame classification affects acceptance/rejection of recognition hypothesis. Classifications and other audio related information may be determined by circuitry in a headset, and sent (e.g., wirelessly) to a separate processor-based recognition device.
    Type: Application
    Filed: July 1, 2015
    Publication date: October 22, 2015
    Inventors: Keith P. Braho, David D. Hardek
  • Patent number: 9076459
    Abstract: Audio frames are classified as either speech, non-transient background noise, or transient noise events. Probabilities of speech or transient noise event, or other metrics may be calculated to indicate confidence in classification. Frames classified as speech or noise events are not used in updating models (e.g., spectral subtraction noise estimates, silence model, background energy estimates, signal-to-noise ratio) of non-transient background noise. Frame classification affects acceptance/rejection of recognition hypothesis. Classifications and other audio related information may be determined by circuitry in a headset, and sent (e.g., wirelessly) to a separate processor-based recognition device.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: July 7, 2015
    Assignee: Intermec IP, Corp.
    Inventors: Keith P. Braho, David D. Hardek
  • Publication number: 20150039309
    Abstract: Methods are disclosed for identifying possible errors made by a speech recognition system without using a transcript of words input to the system. A method for model adaptation for a speech recognition system includes determining an error rate, corresponding to either recognition of instances of a word or recognition of instances of various words, without using a transcript of words input to the system. The method may further include adjusting an adaptation, of the model for the word or various models for the various words, based on the error rate. Apparatus are disclosed for identifying possible errors made by a speech recognition system without using a transcript of words input to the system. An apparatus for model adaptation for a speech recognition system includes a processor adapted to estimate an error rate, corresponding to either recognition of instances of a word or recognition of instances of various words, without using a transcript of words input to the system.
    Type: Application
    Filed: October 17, 2014
    Publication date: February 5, 2015
    Inventors: Keith P. Braho, Jeffrey P. Pike, Lisa A. Pike
  • Patent number: 8868421
    Abstract: A method for model adaptation for a speech recognition system includes determining an error rate, corresponding to either recognition of instances of a word or recognition of instances of various words, without using a transcript of words input to the system. The method may further include adjusting an adaptation, of the model for the word or various models for the various words, based on the error rate. Apparatus are disclosed for identifying possible errors made by a speech recognition system without using a transcript of words input to the system. An apparatus for model adaptation for a speech recognition system includes a processor adapted to estimate an error rate, corresponding to either recognition of instances of a word or recognition of instances of various words, without using a transcript of words input to the system. The apparatus may further include a controller adapted to adjust an adaptation of the model for the word or various models for the various words, based on the error rate.
    Type: Grant
    Filed: October 11, 2010
    Date of Patent: October 21, 2014
    Assignee: Vocollect, Inc.
    Inventors: Keith P. Braho, Jeffrey P. Pike, Lori A. Pike
  • Publication number: 20140278391
    Abstract: Audio frames are classified as either speech, non-transient background noise, or transient noise events. Probabilities of speech or transient noise event, or other metrics may be calculated to indicate confidence in classification. Frames classified as speech or noise events are not used in updating models (e.g., spectral subtraction noise estimates, silence model, background energy estimates, signal-to-noise ratio) of non-transient background noise. Frame classification affects acceptance/rejection of recognition hypothesis. Classifications and other audio related information may be determined by circuitry in a headset, and sent (e.g., wirelessly) to a separate processor-based recognition device.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 18, 2014
    Applicant: INTERMEC IP CORP.
    Inventors: Keith P. Braho, David D. Hardek
  • Publication number: 20110029313
    Abstract: Methods are disclosed for identifying possible errors made by a speech recognition system without using a transcript of words input to the system. A method for model adaptation for a speech recognition system includes determining an error rate, corresponding to either recognition of instances of a word or recognition of instances of various words, without using a transcript of words input to the system. The method may further include adjusting an adaptation, of the model for the word or various models for the various words, based on the error rate. Apparatus are disclosed for identifying possible errors made by a speech recognition system without using a transcript of words input to the system. An apparatus for model adaptation for a speech recognition system includes a processor adapted to estimate an error rate, corresponding to either recognition of instances of a word or recognition of instances of various words, without using a transcript of words input to the system.
    Type: Application
    Filed: October 11, 2010
    Publication date: February 3, 2011
    Applicant: VOCOLLECT, INC.
    Inventors: Keith P. Braho, Jeffrey P. Pike, Lori A. Pike
  • Publication number: 20110029312
    Abstract: Methods are disclosed for identifying possible errors made by a speech recognition system without using a transcript of words input to the system. A method for model adaptation for a speech recognition system includes determining an error rate, corresponding to either recognition of instances of a word or recognition of instances of various words, without using a transcript of words input to the system. The method may further include adjusting an adaptation, of the model for the word or various models for the various words, based on the error rate. Apparatus are disclosed for identifying possible errors made by a speech recognition system without using a transcript of words input to the system. An apparatus for model adaptation for a speech recognition system includes a processor adapted to estimate an error rate, corresponding to either recognition of instances of a word or recognition of instances of various words, without using a transcript of words input to the system.
    Type: Application
    Filed: October 11, 2010
    Publication date: February 3, 2011
    Applicant: VOCOLLECT, INC.
    Inventors: Keith P. Braho, Jeffrey P. Pike, Lori A. Pike
  • Patent number: 7827032
    Abstract: Possible errors made by a speech recognition system may be identified without using a transcript of words input to the system. A method for model adaptation for a speech recognition system includes determining an error rate, corresponding to either recognition of instances of a word or recognition of instances of various words, without using a transcript of words input to the system. The method may further include adjusting an adaptation, of the model for the word or various models for the various words, based on the error rate. An apparatus identifies possible errors made by a speech recognition system without using a transcript of words input to the system. An apparatus for model adaptation for a speech recognition system includes a processor adapted to estimate an error rate, corresponding to either recognition of instances of a word or recognition of instances of various words, without using a transcript of words input to the system.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: November 2, 2010
    Assignee: Vocollect, Inc.
    Inventors: Keith P. Braho, Jeffrey P. Pike, Lori A. Pike