Patents by Inventor Christian Gollan

Christian Gollan 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: 20180211668
    Abstract: Method and apparatus for providing visual feedback on an electronic device in a client/server speech recognition system comprising the electronic device and a network device remotely located from the electronic device. The method comprises processing, by an embedded speech recognizer of the electronic device, at least a portion of input audio comprising speech to produce local recognized speech, sending at least a portion of the input audio to the network device for remote speech recognition, and displaying, on a user interface of the electronic device, visual feedback based on at least a portion of the local recognized speech prior to receiving streaming recognition results from the network device.
    Type: Application
    Filed: July 17, 2015
    Publication date: July 26, 2018
    Applicant: Nuance Communications, Inc.
    Inventors: Daniel WILLETT, Christian GOLLAN, Carl Benjamin QUILLEN, Stefan HAHN, Fabian STEMMER
  • Patent number: 9953638
    Abstract: A computer-implemented method is described for front end speech processing for automatic speech recognition. A sequence of speech features which characterize an unknown speech input provided on an audio input channel and associated meta-data which characterize the audio input channel are received. The speech features are transformed with a computer process that uses a trained mapping function controlled by the meta-data, and automatic speech recognition is performed of the transformed speech features.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: April 24, 2018
    Assignee: Nuance Communications, Inc.
    Inventors: Daniel Willett, Karl Jonas Lööf, Yue Pan, Joel Pinto, Christian Gollan
  • Patent number: 9406299
    Abstract: A computer-implemented method is described for speaker adaptation in automatic speech recognition. Speech recognition data from a particular speaker is used for adaptation of an initial speech recognition acoustic model to produce a speaker adapted acoustic model. A speaker dependent differential acoustic model is determined that represents differences between the initial speech recognition acoustic model and the speaker adapted acoustic model. In addition, an approach is also disclosed to estimate speaker-specific feature or model transforms over multiple sessions. This is achieved by updating the previously estimated transform using only adaptation statistics of the current session.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: August 2, 2016
    Assignee: Nuance Communications, Inc.
    Inventors: Christian Gollan, Daniel Willett
  • Publication number: 20150262575
    Abstract: A computer-implemented method is described for front end speech processing for automatic speech recognition. A sequence of speech features which characterize an unknown speech input provided on an audio input channel and associated meta-data data which characterize the audio input channel are received. The speech features are transformed with a computer process that uses a trained mapping function controlled by the meta-data, and automatic speech recognition is performed of the transformed speech features.
    Type: Application
    Filed: June 28, 2012
    Publication date: September 17, 2015
    Applicant: NUANCE COMMUNICATIONS, INC.
    Inventors: Daniel Willett, Karl Jonas Lööf, Yue Pan, Joel Pinto, Christian Gollan
  • Publication number: 20150149174
    Abstract: A computer-implemented method is described for speaker adaptation in automatic speech recognition. Speech recognition data from a particular speaker is used for adaptation of an initial speech recognition acoustic model to produce a speaker adapted acoustic model. A speaker dependent differential acoustic model is determined that represents differences between the initial speech recognition acoustic model and the speaker adapted acoustic model. In addition, an approach is also disclosed to estimate speaker-specific feature or model transforms over multiple sessions. This is achieved by updating the previously estimated transform using only adaptation statistics of the current session.
    Type: Application
    Filed: May 8, 2012
    Publication date: May 28, 2015
    Applicant: NUANCE COMMUNICATIONS, INC.
    Inventors: Christian Gollan, Daniel Willett