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Methods of decoding speech from the brain and systems for practicing the same

  • US 9,905,239 B2
  • Filed: 02/19/2014
  • Issued: 02/27/2018
  • Est. Priority Date: 02/19/2013
  • Status: Active Grant
First Claim
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1. A method of decoding speech from the brain of a subject, comprising:

  • detecting speech production signals from at least three electrodes directly in contact with the speech motor cortex of a subject while the subject produces or imagines producing a speech sound, wherein the speech motor cortex comprises ventral sensorimotor cortex;

    deriving a speech production signal pattern from the detected speech production signals;

    correlating the speech production signal pattern with a reference speech production signal pattern corresponding to features of speech associated with at least two speech articulators selected from the group consisting of lips, tongue, larynx, and jaw, to decode speech from the brain of the subject; and

    producing the speech decoded from the brain of the subject, wherein the speech is produced in an audible form or in a text form.

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