Patents by Inventor Katsumi Tokuda

Katsumi Tokuda 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: 20040249759
    Abstract: A content using apparatus (103) for providing content use to a user under a license that grants the content use includes: a content using unit (202) for providing the content use to the user; a content use control unit (212) for controlling the content use on the content using unit (202) under the license; a value information storage unit (213) for obtaining and storing a value information tag block (504) indicating a discount amount (605) indicating a benefit for the user, a value information giving condition (603) for allowing the user to use the discount by the discount amount (605) depending on the content use and a discount ticket applicable condition (604); and a value information using unit (214) for judging whether the value information giving condition (603) and the discount ticket applicable condition (604) are satisfied or not and allowing the user to use the discount amount (605) if the conditions are satisfied.
    Type: Application
    Filed: April 15, 2004
    Publication date: December 9, 2004
    Inventors: Akio Higashi, Katsumi Tokuda, Motoji Ohmori, Mitsuhiro Inoue, Toshihisa Abe, Masanori Nakanishi
  • Publication number: 20040215708
    Abstract: A content history log collecting system comprising a server apparatus for distributing a content to a terminal apparatus and collecting a content history log from the terminal apparatus and a terminal apparatus for using the content, wherein the server apparatus includes an adding unit operable to add, to the content, time information indicating a temporal scale of the content, and a content sending unit operable to send, to the terminal apparatus, the content to which the time information is added, and the terminal apparatus includes a content using unit operable to use the content sent from the server apparatus, a generating unit operable to generate section information indicating a section in the content that has been actually used by the content using unit based on the time information of the content, and a sending unit operable to send the section information to the server apparatus.
    Type: Application
    Filed: February 26, 2004
    Publication date: October 28, 2004
    Inventors: Akio Higashi, Kouji Miura, Masaya Yamamoto, Hiroki Murakami, Katsumi Tokuda
  • Publication number: 20040186853
    Abstract: The first reproduction terminal (101) includes: a cipher communication unit (202) operable to perform cipher communication with a license issuance server (103), and obtain license information generated under a rights management method selected by a user, from among a plurality of rights management methods for protecting content copyrights; a license storage unit (203) operable to store the obtained license information; a plurality of use condition judgment units (204) corresponding respectively to each rights management method, operable to judge, based on a use condition included in license information generated under a corresponding rights management method, whether or not the use of a content corresponding to the license information is permitted; a method selection unit (205) operable to select a use condition judgment unit (204) corresponding to a rights management method by identifying such rights management method under which a license was generated, and cause such selected use condition judgment unit (2
    Type: Application
    Filed: January 13, 2004
    Publication date: September 23, 2004
    Inventors: Masaya Yamamoto, Tohru Nakahara, Katsumi Tokuda
  • Publication number: 20040162846
    Abstract: A system comprising a terminal apparatus (300) which uses a content and a license generation server (100) which manages the use, wherein the license generation server (100) includes rights generation units (10A, 10B) operable to generate use condition information which indicates use conditions for the content by corresponding respectively to a plurality of rights management methods which has a different method of managing rights for using a content; a content key storing unit (103) operable to store a content key; and a license generation unit (102) operable to generate license information from the use condition information and the content key, and the terminal apparatus (300) includes rights interpretation units (30A, 30B) operable to judge a use permission of the content under the plurality of rights management methods is based on the use conditions indicated in the license information, and content use units (321a, 321b) operable to use the content according to the judgement result.
    Type: Application
    Filed: January 13, 2004
    Publication date: August 19, 2004
    Inventors: Tohru Nakahara, Masaya Yamamoto, Mitsuhiro Inoue, Katsumi Tokuda
  • Publication number: 20040143661
    Abstract: The system of the present invention is a system comprising a server device which provides a license and a terminal device which controls content use based on the license provided from the server device, wherein the server device includes the first collecting unit operable to collect the first history logs concerning the content use sent from the terminal device, the second collecting unit operable to collect the second history logs concerning the content use sent from the terminal device separately from the collection by the first collection unit and the verifying unit operable to verify the first history logs collected by the first collection unit and the second history logs collected by the second collection unit, and the terminal device includes the first acquirement unit operable to acquire the first history logs concerning the content use and the second acquirement unit operable to acquire the second history logs concerning the content use and a history log sending unit operable to separately send the fi
    Type: Application
    Filed: January 12, 2004
    Publication date: July 22, 2004
    Inventors: Akio Higashi, Mitsuhiro Inoue, Katsumi Tokuda, Hiroki Murakami, Masanori Nakanishi
  • Publication number: 20040133448
    Abstract: The present invention is a system comprising a server device for providing a license and a terminal device for controlling the content use based on the license to be provided by the server, wherein the server device includes a database unit operable to store collection conditions concerning history logs to be collected in the terminal device, a generation unit operable to dynamically generate indication information that indicates history log collection to the terminal device according to the collection condition to be stored in the database unit, the first sending unit operable to send the generated indication information to the terminal device and the first receiving unit operable to receive the history logs to be sent from the terminal device as a response to the indication information, and the terminal device includes the second receiving unit operable to receive the indication information from the server device, a collection unit operable to collect content history logs according to the received indicatio
    Type: Application
    Filed: December 18, 2003
    Publication date: July 8, 2004
    Inventors: Akio Higashi, Mitsuhiro Inoue, Katsumi Tokuda, Masanori Nakanishi
  • Publication number: 20030190044
    Abstract: The present content using system is composed of a content importing apparatus and at least one content using apparatus. The content importing apparatus includes a content ID generating unit that generates a content ID and a content key information encryption converting unit that converts the encryption of content key information using an encryption key (“network key”) that is shared in advance on the network. The content using apparatus includes a content key information decrypting unit that decrypts the content key information, whose encryption has been converted, using the network key, a moved content list storing unit for storing a moved content list (MCL) in which the content IDs of contents that have been written onto a storage medium are written, and a moved content list managing unit that judges whether the writing of a content is permitted or prohibited based on the MCL.
    Type: Application
    Filed: April 2, 2003
    Publication date: October 9, 2003
    Inventors: Akio Higashi, Katsumi Tokuda, Motoji Ohmori, Mitsuhiro Inoue
  • Publication number: 20030061165
    Abstract: A content usage management system includes a terminal device using content as digital production and a server device managing usage of the content on the terminal device, wherein the server device is equipped with a license information memory unit that memorizes license information indicating a usage rule of the content based on a user who uses the terminal device, and a license ticket issuance unit that generates a license ticket as right information indicating a part or all of a usage rule on the license information corresponding to the user based on a request from the user, and the terminal device is equipped with a requesting unit that requests usage of the content to the server device according to designation of the user, a receiving unit that receives the license ticket sent from the server device, and a content usage control unit that controls usage of the content according to the usage rule indicated on the license ticket received, wherein the requesting unit makes a request by sending expected inform
    Type: Application
    Filed: June 5, 2002
    Publication date: March 27, 2003
    Inventors: Ryuichi Okamoto, Katsumi Tokuda, Kouji Miura
  • Publication number: 20030028454
    Abstract: A license information table 421a in a license DB 42a of a license management center terminal device 4a memorizes license information that includes an expiration date and identifies details of a license per content of each user. A license information examination unit 47 calculates remaining time up to the expiration date per license information of each user based on the expiration date and the date and hour at that moment. A notice information preparation unit 46a generates notice information indicating that the expiration date is close at hand when the remaining time calculated by the license information examination unit 47 becomes a predetermined threshold value or less.
    Type: Application
    Filed: July 30, 2002
    Publication date: February 6, 2003
    Inventors: Masahiro Ooho, Mitsuhiro Inoue, Katsumi Tokuda, Yasushi Uesaka
  • Publication number: 20020184515
    Abstract: A device 201 of a licensee &ggr; generates an issue request for a permission to use content data by using a media identifier in a portable recording medium 101 of a licensee &bgr;, and forwards the resulting issue request to a rights management unit 71. The rights management unit 71 is managing rights information of the content data provided to the licensee &bgr;, and based on the rights information together with the issue request, generates permission information to allow the portable recording medium 101 to use the content data. Based on the permission information, the rights management unit 71 then generates license information with which the use of the content data in the device connected to the portable recording medium 101 is controlled, and transmits the license information to the device 201. The device 201 then processes the license information to control the use of the content data.
    Type: Application
    Filed: May 29, 2002
    Publication date: December 5, 2002
    Inventors: Masahiro Oho, Ryuichi Okamoto, Masaya Yamamoto, Yasushi Uesaka, Katsumi Tokuda, Mitsuhiro Inoue
  • Publication number: 20020159592
    Abstract: An information reception unit (123) of a content reception terminal apparatus (102) receives encrypted content which includes header information showing a type of application. An access unit (127) has a storage reference table (400)which includes a plurality of sets, each set made up of header information and a storage folder name. The access unit (127) receives the encrypted content from the information unit (123), extracts the header information from the encrypted content, extracts a set having the same header information as the extracted header information from the storage reference table (400), and retrieves the storage folder name included in the extracted set. Next, the access unit (127) writes the received encrypted content to a folder shown by the extracted storage folder name.
    Type: Application
    Filed: December 19, 2001
    Publication date: October 31, 2002
    Inventors: Hideki Matsushima, Katsumi Tokuda, Masayuki Kozuka
  • Publication number: 20020161571
    Abstract: A management apparatus (FIG. 1) stores pairs of copyrighted contents and numbers of permitted check-outs. On being requested to perform check-out for a semiconductor memory card, the management apparatus records an audio object (AOB) corresponding to a content in the semiconductor memory card, assigns a content ID to the AOB, and decrement a corresponding number of permitted check-outs. An editing and playback apparatus edits the AOB and assigns a content ID, which is the same as the content ID of the original AOB, to each new AOB obtained by the editing. A local storage holds history information including a media ID and the content ID assigned to the original AOB. On being requested to perform check-in for the semiconductor memory card, the management apparatus sets, in a non-playable state, the AOB assigned a content ID that is the same as the content ID in the history information and increments the number of permitted check-outs.
    Type: Application
    Filed: January 3, 2002
    Publication date: October 31, 2002
    Inventors: Hideki Matsushima, Katsumi Tokuda, Shunji Harada, Teruto Hirota, Shinji Inoue
  • Publication number: 20020132653
    Abstract: The invention relates to power saving in portable terminals (100) with recording media (200). Conventionally, there is the problem that a battery (104) in the portable terminal (100) may become exhausted and as a result the original function of the terminal cannot be performed.
    Type: Application
    Filed: February 13, 2002
    Publication date: September 19, 2002
    Inventors: Ryuichi Okamoto, Hideki Matsushima, Masayuki Kozuka, Katsumi Tokuda
  • Patent number: 6229535
    Abstract: A hypertext storage unit stores a hypertext list that shows the total sizes of the hypertexts that a hypertext acceptance unit is to be accept and the amount of data in the hypertexts that the hypertext acceptance unit has accepted. In a hyperlink information storage unit, a hyperlink information table of character strings that are now displayed is written by a hypertext analysis unit. A hypertext acceptance ratio calculation unit calculates the acceptance ratio of a hypertext. A hypertext display control unit displays the acceptance ratio, adding the acceptance ratio to a character string.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: May 8, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Katsumi Tokuda
  • Patent number: 6009439
    Abstract: A data retrieval support apparatus is provided. The classifying unit classifies the plurality pieces of retrieval result data stored in the data storing unit into groups. The group title generating unit generates a group title for each group classified by the classifying unit. The displaying unit displays the group title of each group.
    Type: Grant
    Filed: July 18, 1997
    Date of Patent: December 28, 1999
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takakazu Shiomi, Katsumi Tokuda
  • Patent number: 5614899
    Abstract: A text compressing apparatus comprising morpheme-parsing unit for taking out words from sentences retrieved from an external storage unit, dictionary retrieving unit for converting the post-morpheme-parse words into form marks indicating the form of the detected words while referring to a parse dictionary, a structure-parsing unit for generating equation trees for each sentence, an expression rewriting unit for rewriting the words which are referred to as nodes into their representative words, an equation converting unit for converting the equation trees written into the representative expressions into words, and Huffman coding unit for converting the words from the equation tree converting unit into strings of bits.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: March 25, 1997
    Assignee: Matsushita Electric Co., Ltd.
    Inventors: Katsumi Tokuda, Ryoichi Sugimura