Patents by Inventor Andrew P Breen

Andrew P Breen 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).

  • Phonetic unit duration adjustment for text-to-speech system
    Patent number: 6330538
    Abstract: Input text is converted to a sequence of representations of syllables or other phonetic units and stored portions of data are retrieved to generate waveforms corresponding to the syllables. In order to determine durations for the syllables, a constant duration is defined corresponding to a regular beat period and adjusted in accordance with the nature of the syllable and/or its context within the sequence.
    Type: Grant
    Filed: December 11, 1997
    Date of Patent: December 11, 2001
    Assignee: British Telecommunications public limited company
    Inventor: Andrew P Breen
  • Image synthesis
    Patent number: 6208356
    Abstract: Synthesis of a moving picture of a face (e.g. to accompany synthetic speech) is performed by converting an input phoneme string into a sequence of mouth shapes or visemes. Specifically a shape is generated for each vowel and for each transition involving a consonant.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: March 27, 2001
    Assignee: British Telecommunications public limited company
    Inventors: Andrew P Breen, Emma J Bowers