Patents by Inventor Yuko Eto

Yuko Eto 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).

  • Mathematical expression recognizing device, mathematical expression recognizing method, character recognizing device and character recognizing method
    Patent number: 7181068
    Abstract: A mathematical expression recognizing device comprises a character recognition unit which recognizes characters in a document image, a dictionary storing a pair of evaluation scores for each type of word, the score showing the possibility of belonging to the text and that of belonging to the mathematical expression, an evaluation unit which obtains the evaluation scores showing the possibility of belonging to the text and that of belonging to the mathematical expression for each of the words included in the recognized characters with reference to the dictionary, and a mathematical expression detecting unit which searches for an optimal path connecting words by selecting one of the text and the mathematical expression based on a formative grammar and the evaluation scores showing the possibility of belonging to the text and that of belonging to the mathematical expression for each of the words, thereby detecting characters belonging to the mathematical expression.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: February 20, 2007
    Assignees: Kabushiki Kaisha Toshiba
    Inventors: Masakazu Suzuki, Kazuaki Yokota, Yuko Eto
  • Mathematical expression recognizing device, mathematical expression recognizing method, character recognizing device and character recognizing method
    Patent number: 7092574
    Abstract: A mathematical expression recognizing device comprises a character recognition unit which recognizes characters in a document image, a dictionary storing a pair of evaluation scores for each type of word, the score showing the possibility of belonging to the text and that of belonging to the mathematical expression, an evaluation unit which obtains the evaluation scores showing the possibility of belonging to the text and that of belonging to the mathematical expression for each of the words included in the recognized characters with reference to the dictionary, and a mathematical expression detecting unit which searches for an optimal path connecting words by selecting one of the text and the mathematical expression based on a formative grammar and the evaluation scores showing the possibility of belonging to the text and that of belonging to the mathematical expression for each of the words, thereby detecting characters belonging to the mathematical expression.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: August 15, 2006
    Assignees: Kabushiki Kaisha Toshiba
    Inventors: Masakazu Suzuki, Kazuaki Yokota, Yuko Eto
  • Mathematical expression recognizing device, mathematical expression recognizing method, character recognizing device and character recognizing method
    Publication number: 20020126905
    Abstract: A mathematical expression recognizing device comprises a character recognition unit which recognizes characters in a document image, a dictionary storing a pair of evaluation scores for each type of word, the score showing the possibility of belonging to the text and that of belonging to the mathematical expression, an evaluation unit which obtains the evaluation scores showing the possibility of belonging to the text and that of belonging to the mathematical expression for each of the words included in the recognized characters with reference to the dictionary, and a mathematical expression detecting unit which searches for an optimal path connecting words by selecting one of the text and the mathematical expression based on a formative grammar and the evaluation scores showing the possibility of belonging to the text and that of belonging to the mathematical expression for each of the words, thereby detecting characters belonging to the mathematical expression.
    Type: Application
    Filed: March 5, 2002
    Publication date: September 12, 2002
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masakazu Suzuki, Kazuaki Yokota, Yuko Eto