Patents by Inventor David Matthew Karas

David Matthew Karas 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).

  • Patent number: 11810471
    Abstract: A computer system analyses audio data representing a user speaking words from a body of text and identifies occasions where the user mispronounces an expected phoneme. Mispronunciation of the expected phoneme is identified by comparison with a phonetic sequence corresponding to the text, based on a predetermined or user-selected language model. The system requires the user to read continuously for a period of time, so that the user cannot hide any tendency they have to pronounce the words of the text either incorrectly or differently to the expected phonemes from the language model. The system operates on the basis of comparing the similarity of the spoken sounds of the user with the expected phonemes for the body of text, and it is not necessary to convert the user's speech to text. As the computer system need only work with the similarity scores and the sequence of expected phonemes, it can be implemented in a computationally efficient manner.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: November 7, 2023
    Assignee: SPEECH ENGINEERING LIMITED
    Inventor: David Matthew Karas
  • Publication number: 20210082311
    Abstract: A computer system analyses audio data representing a user speaking words from a body of text and identifies occasions where the user mispronounces an expected phoneme. Mispronunciation of the expected phoneme is identified by comparison with a phonetic sequence corresponding to the text, based on a predetermined or user-selected language model. The system requires the user to read continuously for a period of time, so that the user cannot hide any tendency they have to pronounce the words of the text either incorrectly or differently to the expected phonemes from the language model. The system operates on the basis of comparing the similarity of the spoken sounds of the user with the expected phonemes for the body of text, and it is not necessary to convert the user's speech to text. As the computer system need only work with the similarity scores and the sequence of expected phonemes, it can be implemented in a computationally efficient manner.
    Type: Application
    Filed: May 13, 2019
    Publication date: March 18, 2021
    Inventor: David Matthew Karas