Patents by Inventor Eiji Tozuka

Eiji Tozuka 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).

  • Speech recognition apparatus and method
    Patent number: 8108215
    Abstract: An apparatus and method for recognizing paraphrases of uttered phrases, such as place names. At least one keyword contained in a speech utterance is recognized. Then, the keyword(s) contained in the speech utterance are re-recognized using a phrase including the keyword(s). Based on both recognition results, it is determined whether a paraphrase could have been uttered. If a paraphrase could have been uttered, a phrase corresponding to the paraphrase is determined as a result of speech recognition of the speech utterance.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: January 31, 2012
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Keiko Katsuragawa, Minoru Tomikashi, Takeshi Ono, Daisuke Saitoh, Eiji Tozuka
  • Speech recognition correction with standby-word dictionary
    Patent number: 7949524
    Abstract: At least one recognized keyword is presented to a user, and the keyword is corrected appropriately upon receipt of a correction for the presented result. A standby-word dictionary used for recognition of uttered speech is generated according to a result of the correction to recognize the uttered speech. Therefore, even if recognized keywords contain an error, the error can be corrected and uttered speech can be accurately recognized.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: May 24, 2011
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Daisuke Saitoh, Keiko Katsuragawa, Minoru Tomikashi, Takeshi Ono, Eiji Tozuka
  • SPEECH RECOGNITION APPARATUS AND METHOD
    Publication number: 20080262843
    Abstract: An apparatus and method for recognizing paraphrases of uttered phrases, such as place names. At least one keyword contained in a speech utterance is recognized. Then, the keyword(s) contained in the speech utterance are re-recognized using a phrase including the keyword(s). Based on both recognition results, it is determined whether a paraphrase could have been uttered. If a paraphrase could have been uttered, a phrase corresponding to the paraphrase is determined as a result of speech recognition of the speech utterance.
    Type: Application
    Filed: October 22, 2007
    Publication date: October 23, 2008
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Keiko Katsuragawa, Minoru Tomikashi, Takeshi Ono, Daisuke Saitoh, Eiji Tozuka
  • SPEECH RECOGNITION APPARATUS AND METHOD
    Publication number: 20080162137
    Abstract: At least one recognized keyword is presented to a user, and the keyword is corrected appropriately upon receipt of a correction for the presented result. A standby-word dictionary used for recognition of uttered speech is generated according to a result of the correction to recognize the uttered speech. Therefore, even if recognized keywords contain an error, the error can be corrected and uttered speech can be accurately recognized.
    Type: Application
    Filed: November 13, 2007
    Publication date: July 3, 2008
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Daisuke Saitoh, Keiko Katsuragawa, Minoru Tomikashi, Takeshi Ono, Eiji Tozuka