Patents by Inventor Akitoshi Okumura

Akitoshi Okumura 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).

  • Patent number: 7219050
    Abstract: An automatic interpreting system, having at least an inputting unit for inputting utterances, an interpreting unit for recognizing the input utterance and interpreting the input utterance into a specified language, and an outputting unit for outputting interpretation results, includes a conversation history managing unit for determining the level of interpretation reliability calculated based on the interpretation result, having the user input their level of interpretation understanding, and recording and storing this data as interpretation history information, and a conversation status determination processing unit for, if the interpretation of an utterance is not understandable to the receiving party, determining the conversation status by selecting from categories pre-determined based on the levels of interpretation reliability and interpretation understanding for the previous utterance that are stored in the conversation history managing unit, and a recommended action presenting part for presenting to the
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: May 15, 2007
    Assignee: NEC Corporation
    Inventors: Kai Ishikawa, Shinichi Ando, Akitoshi Okumura
  • Patent number: 6505195
    Abstract: A document storage stores a plurality of documents belonging to a certain field. The administrator of a host device uses a classification attribute selector to select the types of attributes suitable for classifying the documents stored in the document storage, from the types of attributes which are stored in a candidate storage and can be used as classification keys, and stores the selected types of attributes in a classification attribute storage. An attribute analyzer analyzes each of documents retrieved by a document retriever to determine which one of the types of attributes stored in the classification attribute storage an attribute element contained in the document belongs to. An attribute classifier classifies each of the retrieved documents into a category according to the type of the attribute element contained in the document based on the determined type of an attribute from the attribute analyzer.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: January 7, 2003
    Assignee: NEC Corporation
    Inventors: Takahiro Ikeda, Kenji Satoh, Akitoshi Okumura
  • Publication number: 20020032561
    Abstract: An automatic interpreting system, having at least an inputting unit for inputting utterances, an interpreting unit for recognizing the input utterance and interpreting the input utterance into a specified language, and an outputting unit for outputting interpretation results, includes a conversation history managing part for determining the level of interpretation reliability by calculating a value of validity based on the interpretation result, inputting the level of interpretation understanding as the receiving-side speaker's subjective evaluation of how well he or she can grasp the meaning of the interpretation result, and recording and holding these data as interpretation history information, and a conversation status determination processing unit for, if the interpretation of an utterance is not understandable to the receiving party, determining the conversation status by way of finding an applicable category among the pre-determined categories based on the levels of interpretation reliability and interp
    Type: Application
    Filed: September 7, 2001
    Publication date: March 14, 2002
    Applicant: NEC CORPORATION
    Inventors: Kai Ishikawa, Shinichi Ando, Akitoshi Okumura
  • Patent number: 6338034
    Abstract: A method of summarizing a document which comprises the steps of: extracting sentence-constituting-elements from the document; tabularizing the sentence-constituting-elements corresponding to categories and sentences in the document; extracting commonly-held-information which is common to the sentence-constituting-elements in the same category from the sentence-constituting-elements; looking up common expression information which is common to plural pieces of the commonly-held-information in a thesaurus in which the commonly-held-information and the common expression information are connected by a hierarchical tree; and composing a summary based on the commonly-held-information and the common expression information.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: January 8, 2002
    Assignee: NEC Corporation
    Inventors: Kai Ishikawa, Akitoshi Okumura
  • Patent number: 6327600
    Abstract: A document management system is provided to manage electronic documents in connection with copyrights. Herein, copyright management information is set with respect to a constituent element of a document that a user produces. The constituent element corresponds to a chapter, a paragraph, a sentence, a figure or a table, for example. The copyright management information represents copyright information regarding the use of the document, which is classified into prescribed levels such as a reference level, a copy level and a print level. In addition, it represents prescribed conditions as to whether the use of the document is allowed with payment of fee, with filing of application and with display of copyright or not, for example. Further, the content of the copyright management information can be changed in response to user levels respectively. The copyright management information is connected with information representing the constituent element.
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: December 4, 2001
    Assignee: NEC Corporation
    Inventors: Kenji Satoh, Akitoshi Okumura, Takahiro Ikeda
  • Publication number: 20010016809
    Abstract: A method of summarizing a document which comprises the steps of: extracting sentence-constituting-elements from the document; tabularizing the sentence-constituting-elements corresponding to categories and sentences in the document; extracting commonly-held-information which is common to the sentence-constituting-elements in the same category from the sentence-constituting-elements; looking up common expression information which is common to plural pieces of the commonly-held-information in a thesaurus in which the commonly-held-information and the common expression information are connected by a hierarchical tree; and composing a summary based on the commonly-held-information and the common expression information.
    Type: Application
    Filed: April 16, 1998
    Publication date: August 23, 2001
    Inventors: KAI ISHIKAWA, AKITOSHI OKUMURA
  • Patent number: 6243723
    Abstract: The objective of the present invention is to provide a document classification apparatus, which utilizes extracted keywords from the bodies of documents to classify the documents. The document classification apparatus is mainly made up of the following apparatus: A 5W1H keyword extraction apparatus that extracts keywords with 5W1H attributes in an entered document. The classification key setting apparatus that sets the 5W1H attributes entered by a user as classification keys. The classification item selection apparatus that selects keywords as classification items from the extracted keywords with the 5W1H attributes set as the classification keys. The document distribution apparatus that distributes a document including the previously selected classification items with the 5W1H attributes set as classification keys, into a cell corresponding to the classification items. Enabling documents to be classified from meaningful 5W1H viewpoints.
    Type: Grant
    Filed: May 21, 1998
    Date of Patent: June 5, 2001
    Assignee: NEC Corporation
    Inventors: Takahiro Ikeda, Akitoshi Okumura, Takayoshi Ochiai
  • Patent number: 6178424
    Abstract: An information activity management unit records an item characterizing information and an item of a user thereof per information collected. A user attribute information storage unit records a user attribute characterizing each user. When an information collecting unit fetches the information from a database system, a similar information user common attribute extracting unit obtains a user of information similar to the above information and obtains a user attribute common to the users from the user attribute information storage unit. An information distributing unit obtains all the users having this common user attribute from the user attribute information storage unit and distribute the collected information to these users. An activity state registering unit, when notified from the user of an effect that the distributed information is useful, registers the information activity management unit with this user as a user of the distributed information.
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: January 23, 2001
    Assignee: NEC Corporation
    Inventors: Akitoshi Okumura, Takahiro Ikeda