Patents by Inventor Masaru Ohki

Masaru Ohki 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: 20020166057
    Abstract: The subject of the disclosed technology is, when a crypto-processing is performed utilizing an information processing device buried in an IC card, etc., to decrease the relationship between the waveform of the consumption current and the contents of the crypto-processing as a countermeasure against a tamper which observes the waveform of a consumption current.
    Type: Application
    Filed: August 29, 2001
    Publication date: November 7, 2002
    Inventors: Masahiro Kaminaga, Takashi Endo, Takashi Watanabe, Masaru Ohki
  • Patent number: 6477239
    Abstract: A sign language telephone device is offered which enables an aurally handicapped person who uses the sign language to converse with a normal person at a distant place who does not know the sign language. The sign language telephone device is placed on the side of the aurally handicapped person, and hand gestures of the sign language inputted from a sign language input means are recognized as the sign language, and the recognized sign language is translated to Japanese. The translated Japanese word train is converted to synthesized voices and it is transmitted to a videophone on the side of a normal person. The voices from the videophone are recognized, and the recognized Japanese is translated to the sign language to generate sign language animations and they are displayed on the screen of a TV set on the side of the aurally handicapped person.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: November 5, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Masaru Ohki, Hirohiko Sagawa, Tomoko Sakiyama, Hisashi Ikeda, Hiromichi Fujisawa, Nobuo Hataoka, Youichi Kaneko
  • Publication number: 20020154767
    Abstract: It is an object of the disclosed technology to provide a tamper resistance device such as a card member having high security. The disclosed technology provides a solution to problems by reduction of the degree of relationship between information processed in the card member such as a chip for an IC card and current consumption for the processing.
    Type: Application
    Filed: August 29, 2001
    Publication date: October 24, 2002
    Inventors: Takashi Endo, Masahiro Kaminaga, Takashi Watanabe, Masaru Ohki
  • Publication number: 20020155892
    Abstract: A system for loading, through a shop terminal, a game application into an IC card which disables playing of the game after a plurality of times in the same pattern by invalidating the game pattern when the play is completed and program log data is stored in the IC card. The log data is collected by a management server for each connection of the IC card and the shop terminal so as to administrate the collected data to enable dynamic management of game parameters, thereby the game application may be safely introduced to the IC card system, thereby increasing a user desire to use the card.
    Type: Application
    Filed: June 10, 2002
    Publication date: October 24, 2002
    Inventors: Yusuke Mishina, Hiroko Sukeda, Masaru Ohki, Naoko Yamazaki
  • Publication number: 20020152252
    Abstract: The subject of the disclosed technology is shown in the following. In the information processing device such as an IC card the overflow processing which occurs in the case of a modular multiplication operation to be performed during crypto-processing inside shows a particular pattern of a consumption current. It is the subject of the present invention to decrease the relationship between data processing and the pattern of the consumption current.
    Type: Application
    Filed: August 24, 2001
    Publication date: October 17, 2002
    Applicant: Hitachi, Ltd.
    Inventors: Masahiro Kaminaga, Takashi Endo, Takashi Watanabe, Masaru Ohki
  • Publication number: 20020139861
    Abstract: Premium point services offered by different retailers require each user to possess a plurality of cards for dealing with different applications. An electronic pocketbook system made of a display device and an IC card is provided to store diverse kinds of application information such as amount information and point information into a single IC card. Portions of the application information to be displayed are stored in a predetermined format into a predetermined area inside the IC card. This allows the same program of the display device to display various kinds of application information successively using a common program, and without having to an application specific program.
    Type: Application
    Filed: December 22, 1998
    Publication date: October 3, 2002
    Inventors: KENJI MATSUMOTO, SHIGEYUKI ITO, YUTAKA TAKAMI, MASAYUKI INOUE, KOICHI YONETA, TETSUHARU INAMITSU, MASARU OHKI
  • Publication number: 20020134843
    Abstract: There have been some problems in the conventional IC card such as a card holder has to memorize his PIN, the set of conditions for the combination of IC cards has been impossible, a self-governing body has been unable to issue a resident cart for the utilization of public facilities to a resident in the neighboring self-governing body.
    Type: Application
    Filed: February 26, 2001
    Publication date: September 26, 2002
    Inventors: Minoru Ashizawa, Yusuke Mishina, Masaru Ohki
  • Publication number: 20020125328
    Abstract: The invention provides a method that enables loading/unloading a plurality of types of games as part of an application program, typically, a game application program installed on a smart card system with high ability of storing information for which highly-reliable security is achievable, extending the use range of the card. Of a program to run on the card, the processing parts that can be executed in common are packaged as modules and game definitions described in scripts are loaded/unloaded into/from the card as required from a terminal operating with the card. In the program, a script interpreter that interprets and executes scripts, a controller that controls scripts loading/unloading, a controller that performs the management of point data and rights to play game are prepared, whereby dynamic loading/unloading of types of games is possible and one application can offer a plurality of types of games that can be selectively executed.
    Type: Application
    Filed: March 6, 2001
    Publication date: September 12, 2002
    Inventors: Hiroko Sukeda, Yusuke Mishina, Masaru Ohki
  • Publication number: 20020124179
    Abstract: The disclosed techniques are as shown below. The subject of the invention is to provide a crypto-processing method capable to confront an attack, which intentionally causes an erroneous operation and takes out secret information to be done against a device which performs a crypto-processing inside the device such as an IC card.
    Type: Application
    Filed: August 20, 2001
    Publication date: September 5, 2002
    Applicant: Hitachi, Ltd.
    Inventors: Masahiro Kaminaga, Takashi Endo, Takashi Watanabe, Masaru Ohki
  • Publication number: 20020112236
    Abstract: A loyalty program with game that executes games on a smart card, wherein the loyalty program with game can also be used as a simple loyalty program without game, no major modifications need not be made to shop terminals, and the number of times customers can play games can be limited according to sales amounts, wherein point data managed by a point application is divided into two types: “pre-game points” and “post-game points.” In shops, points are added to the pre-game points. For game execution, the pre-game points are subtracted, and points gained by game are added to the post-game points. Shop terminals need not be modified, and customers not to play game can also enjoy reasonable exchange of gained points. From the viewpoint of system management, by limiting the number of times customers can play game, points gained by game can be prevented from circulating infinitely.
    Type: Application
    Filed: September 4, 2001
    Publication date: August 15, 2002
    Inventors: Hiroko Sukeda, Masaru Ohki, Kazuhiro Ozeki, Kazuo Fujita, Kunio Suzuki
  • Patent number: 6408075
    Abstract: An IC card having a storage memory including a program storage unit for storing a program and a data storage unit for storing data and a central processing unit for executing a predetermined process in accordance with the program to process the data, the program including one or more data process units each having a process instruction for giving an execution instruction to the central processing unit, wherein a data process order is randomly exchanged and a dummy process is added to thereby reduce the dependency of consumption current of an IC chip upon the data process.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: June 18, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Masaru Ohki, Yasuko Fukuzawa, Susumu Okuhara, Masahiro Kaminaga
  • Publication number: 20020069169
    Abstract: A data processing method for smart card system provides a highly safe and convenient operation management method in game-linked point system for playing a game on a smart card, especially stressing returned goods process and prevention of illegal operation. After said rights to play game are supplied to a smart card from a shop according to the usage of the card, when the event that the transaction causing the supply of rights to play game is canceled, the designated rights to play game are canceled. When a game is played based on the rights to play game, points are supplied according to the results from playing the game.
    Type: Application
    Filed: February 26, 2001
    Publication date: June 6, 2002
    Inventors: Hiroko Sukeda, Masaru Ohki, Kazuhiro Ohzeki, Kazuo Fujita
  • Publication number: 20020056079
    Abstract: A method, by which if a reissued smart card is issued based on an old smart card, the application program loaded in the old smart card is smoothly reloaded in the reissued smart card, is disclosed. Its specific configuration will be described as below. A method for loading an application program in a smart card comprises the steps of: in response to a request for loading one application program for a smart card in the smart card that has been reissued based on an old smart card, judging whether or not said one application program was loaded in the old smart card, according to a relationship between a card id of the reissued smart card and a card id of the old smart card; and if it is found out that said one application program was loaded, loading said one application program in the reissued smart card.
    Type: Application
    Filed: August 29, 2001
    Publication date: May 9, 2002
    Applicant: Hitachi, Ltd.
    Inventors: Akiko Sato, Yusuke Mishina, Minoru Ashizawa, Masaru Ohki, Nikkou Kaku, Shohei Takeuchi, Hirohiko Kurokawa, Shinichi Hirata
  • Publication number: 20010006195
    Abstract: The invention provides a method that enables loading/unloading a plurality of types of games as part of an application program, typically, a game application program installed on a smart card system with high ability of storing information for which highly-reliable security is achievable, extending the use range of the card. Of a program to run on the card, the processing parts that can be executed in common are packaged as modules and game definitions described in scripts are loaded/unloaded into/from the card as required from a terminal operating with the card. In the program, a script interpreter that interprets and executes scripts, a controller that controls scripts loading/unloading, a controller that performs the management of point data and rights to play game are prepared, whereby dynamic loading/unloading of types of games is possible and one application can offer a plurality of types of games that can be selectively executed.
    Type: Application
    Filed: December 22, 2000
    Publication date: July 5, 2001
    Inventors: Hiroko Sukeda, Yusuke Mishina, Masaru Ohki
  • Patent number: 6181778
    Abstract: A sign language telephone device is offered which enables an aurally handicapped person who uses the sign language to converse with a normal person at a distant place who does not know the sign language. The sign language telephone device is placed on the side of the aurally handicapped person, and hand gestures of the sign language inputted from a sign language input means are recognized as the sign language, and the recognized sign language is translated to Japanese. The translated Japanese word train is converted to synthesized voices and it is transmitted to a videophone on the side of a normal person. The voices from the videophone are recognized, and the recognized Japanese is translated to the sign language to generate sign language animations and they are displayed on the screen of a TV set on the side of the aurally handicapped person.
    Type: Grant
    Filed: February 26, 1998
    Date of Patent: January 30, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Masaru Ohki, Hirohiko Sagawa, Tomoko Sakiyama, Hisashi Ikeda, Hiromichi Fujisawa, Nobuo Hataoka, Youichi Kaneko
  • Patent number: 5990878
    Abstract: A sign language editing apparatus includes a glove-type sensor for converting movement of fingers in the sign language into an electrical signal to produce time series data of sign language words, a sign language word data editing device for adding predetermined additional data to the time series data inputted from the glove-type sensor to process the time series data, a sign language word dictionary for storing the time series data of sign language words processed by the sign language word data editing device, a sign language sentence data editing device for reading out the time series data of sign language words stored in the sign language word dictionary in accordance with the predetermined characters inputted from the input unit and adding predetermined additional information to the time series data of sign language words to produce time series data of sign language sentence, a sign language animation synthesizing device inputted with the time series data of sign language sentence produced by the sign lan
    Type: Grant
    Filed: May 16, 1996
    Date of Patent: November 23, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Hisashi Ikeda, Hirohiko Sagawa, Tomoko Sakiyama, Masaru Ohki, Youichi Kaneko
  • Patent number: 5953693
    Abstract: A sign language interpretation apparatus for performing sign language recognition and sign language generation generates easily read sign language computer graphics (CG) animation by preparing sign language word CG patterns on the basis of actual motion of the hand through the use of a glove type sensor to generate natural sign language CG animation, and by applying correction to the sign language word CG patterns. Further, in the sign language interpretation apparatus, results of translation of inputted sign language or voice language are confirmed and modified easily by the individual input persons, whereby results of translation of the inputted sign language or voice language are displayed in a combined form desired by the user to realize smooth communication. Also, candidates obtained as a result of translation are all displayed and can be selected easily by the input person with a device such as a mouse.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: September 14, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Tomoko Sakiyama, Eiji Oohira, Hirohiko Sagawa, Masaru Ohki, Kazuhiko Sagara, Kiyoshi Inoue, Yasunari Obuchi, Yuji Toda, Masahiro Abe
  • Patent number: 5734923
    Abstract: An information output apparatus which outputs guide information in combination with image, text, voice and sign-language so that hearing impaired, handicapped people can easily recognize the guide information. The sign-language is automatically generated by computer graphics on the basis of text information inputted to the apparatus. A user can edit the generated sign-language. When it is desired to perform a generating operation over additional sign-language information, a transitional picture is automatically inserted between the sign-language words to provide clear discrimination between the words. The inserting manner can be specified by the user.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: March 31, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Hirohiko Sagawa, Masaru Ohki, Eiji Ohira, Tomoko Sakiyama, Youichi Kaneko
  • Patent number: 5659764
    Abstract: A sign language interpretation apparatus for performing sign language recognition and sign language generation generates easily read sign language computer graphics (CG) animation by preparing sign language word CG patterns on the basis of actual motion of the hand through the use of a glove type sensor to generate natural sign language CG animation, and by applying correction to the sign language word CG patterns. Further, in the sign language interpretation apparatus, results of translation of inputted sign language or voice language are confirmed and modified easily by the individual input persons, whereby results of translation of the inputted sign language or voice language are displayed in a combined form desired by the user to realize smooth communication. Also, candidates obtained as a result of translation are all displayed and can be selected easily by the input person with a device such as a mouse.
    Type: Grant
    Filed: February 23, 1994
    Date of Patent: August 19, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Tomoko Sakiyama, Eiji Oohira, Hirohiko Sagawa, Masaru Ohki, Kazuhiko Sagara, Kiyoshi Inoue, Yasunari Obuchi, Yuji Toda, Masahiro Abe
  • Patent number: 5524175
    Abstract: A general neuro-computer and system using it is capable of executing a plurality of learning algorithms, providing an instruction execution speed comparable with a hard wired system, and practically neglecting a time required for rewriting microprograms. The neuro-computer is constituted by a neuron array having a plurality of neurons, a control storage unit for storing microinstructions, a parameter register, a control logic, and a global memory. A host computer as a user interface inputs information necessary for the learning and execution of the neuro-computer to the system, the information including learning algorithms, neural network architecture, the number of learnings, the number of input patterns, input signals, and desired signals. The information inputted from the host computer is transferred via a SCSI to the neuro-computer to perform a desired neural network operation.
    Type: Grant
    Filed: October 27, 1993
    Date of Patent: June 4, 1996
    Assignees: Hitachi, Ltd., Hitachi Micro Computer System, Ltd.
    Inventors: Yuji Sato, Katsunari Shibata, Takahiro Sakaguchi, Mitsuo Asai, Masashi Hashimoto, Hiroshi Takayanagi, Tatsuo Okahashi, Keiji Moki, Yoshihiro Kuwabara, Tatsuo Ochiai, Masaru Ohki, Hisao Ogata