Patents by Inventor Keiko Katsuragawa

Keiko Katsuragawa 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: 20240012527
    Abstract: A method and apparatus are provided for effecting an RFID-based finger input sensing system using a transmission line connected to at least two RFID tags, by analyzing a plurality of features relating to the number of spikes in the derivatives of the RSS, timing of maximum RSS and the spikes of the RSS derivatives, relative RSS magnitude between the at least two RFID tags, and increase/decrease trend of the RSS, thereby eliminating the need for calibration and training.
    Type: Application
    Filed: November 5, 2021
    Publication date: January 11, 2024
    Inventors: Ju WANG, Omid SALEHI-ABARI, Daniel VOGEL, Keiko KATSURAGAWA
  • Patent number: 9020819
    Abstract: A recognition dictionary system includes a variant term accumulation unit, a variant frequency analysis unit, and a recognition dictionary update unit. The variant term accumulation unit is configured to accumulate and store a first variant term that has a meaning equivalent to a base term stored in a recognition dictionary and has first character string information that is different from character string information of the base term. The variant frequency analysis unit is configured to analyze an occurrence frequency of the first variant term accumulated and stored in the variant term accumulation unit and to determine the first variant term as a principal variant term when the occurrence frequency is higher than a first prescribed value. The recognition dictionary update unit is configured to update the recognition dictionary to register the principal variant term in the recognition dictionary as being associated with the base term.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: April 28, 2015
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Daisuke Saitoh, Minoru Tomikashi, Takeshi Oono, Keiko Katsuragawa
  • Publication number: 20130311417
    Abstract: In an operating device for restricting the operation while driving, for in-vehicle information equipment, it has load detection units for detecting a driving load on an operator, an operation extraction unit (an operable range-determining unit) for extracting an operation which can be completed under the circumstances of the detected driving load, and a control unit for making only the extracted operation operable.
    Type: Application
    Filed: December 8, 2011
    Publication date: November 21, 2013
    Inventor: Keiko Katsuragawa
  • 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
  • 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
  • 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
  • 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
  • Publication number: 20070162281
    Abstract: A recognition dictionary system includes a variant term accumulation unit, a variant frequency analysis unit, and a recognition dictionary update unit. The variant term accumulation unit is configured to accumulate and store a first variant term that has a meaning equivalent to a base term stored in a recognition dictionary and has first character string information that is different from character string information of the base term. The variant frequency analysis unit is configured to analyze an occurrence frequency of the first variant term accumulated and stored in the variant term accumulation unit and to determine the first variant term as a principal variant term when the occurrence frequency is higher than a first prescribed value. The recognition dictionary update unit is configured to update the recognition dictionary to register the principal variant term in the recognition dictionary as being associated with the base term.
    Type: Application
    Filed: December 28, 2006
    Publication date: July 12, 2007
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Daisuke Saitoh, Minoru Tomikashi, Takeshi Oono, Keiko Katsuragawa