Patents by Inventor Toshinari Takahashi
Toshinari Takahashi 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).
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Patent number: 7587503Abstract: A content reproduction apparatus including reproduction unit configured to reproduce content data item stored in recording medium storing first server identifier and content data item including destination identifier, reads first server identifier from recording medium, to store first server identifier in table, certifies first server corresponding to first sever identifier, receives first server policy from first server being certified, first server policy including second server identifier redirecting to second server, to store second server identifier in table, certifies second server, acquires destination identifier while reproduction unit reproduces content data item, determines whether destination identifier being acquired is equal to first identifier stored in table, and accesses to second server, when at least destination identifier is equal to first identifier and second server is certified.Type: GrantFiled: June 20, 2006Date of Patent: September 8, 2009Assignee: Kabushiki Kaisha ToshibaInventors: Hideaki Sato, Toshinari Takahashi, Tooru Kamibayashi, Toshimitsu Kaneko, Haruhiko Toyama, Hideki Mimura, Yasufumi Tsumagari, Yasuhiro Ishibashi, Takero Kobayashi, Seiichi Nakamura, Eita Shuto, Kazuhiko Taira, Yoichiro Yamagata
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Patent number: 7512982Abstract: An apparatus includes a server connected between a first computer network in which a computer virus may generate and a second computer network or a computer system as an object of security protection. In the apparatus, a collection unit collects irregular data representing a possibility of generation of the computer virus that may attack the server. A decision unit decides whether the computer virus is being generated on the computer network in accordance with the irregular data. A notification unit notifies the second computer network or the computer system of generation of the computer virus when the decision unit decides that the computer virus is being generated.Type: GrantFiled: June 20, 2007Date of Patent: March 31, 2009Assignee: Kabushiki Kaisha ToshibaInventor: Toshinari Takahashi
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Patent number: 7437761Abstract: An apparatus includes a server connected between a first computer network in which a computer virus may generate and a second computer network or a computer system as an object of security protection. In the apparatus, a collection unit collects irregular data representing a possibility of generation of the computer virus that may attack the server. A decision unit decides whether the computer virus is being generated on the computer network in accordance with the irregular data. A notification unit notifies the second computer network or the computer system of generation of the computer virus when the decision unit decides that the computer virus is being generated.Type: GrantFiled: June 20, 2007Date of Patent: October 14, 2008Assignee: Kabushiki Kaisha ToshibaInventor: Toshinari Takahashi
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Publication number: 20080155670Abstract: Communication connection method for connecting server computer to client computer via network, comprises storing group identification information items for identifying groups, in relation to information indicating number of connection request packets uniquely and secretly allocated to each group of groups, each group including users allowed to access server computer, counting connection request packets received from client computer within preset period to obtain counted number, determining whether information corresponds to counted number, acquiring one group of groups to which connection request packets corresponding to counted number are allocated, if information corresponds to counted number, determining whether resources of server computer are allocated to group indicated by acquired group identification item, generating connection request acknowledgement packet in response to at least one of received connection request packets, and transmitting generated connection request acknowledgement packet to netwoType: ApplicationFiled: January 3, 2008Publication date: June 26, 2008Inventors: Kentaro Umesawa, Toshinari Takahashi
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Communication connection method, authentication method, server computer, client computer and program
Patent number: 7366170Abstract: Communication connection method for connecting server computer to client computer via network, comprises storing group identification information items for identifying groups, in relation to information indicating number of connection request packets uniquely and secretly allocated to each group of groups, each group including users allowed to access server computer, counting connection request packets received from client computer within preset period to obtain counted number, determining whether information corresponds to counted number, acquiring one group of groups to which connection request packets corresponding to counted number are allocated, if information corresponds to counted number, determining whether resources of server computer are allocated to group indicated by acquired group identification item, generating connection request acknowledgement packet in response to at least one of received connection request packets, and transmitting generated connection request acknowledgement packet to netwoType: GrantFiled: September 24, 2004Date of Patent: April 29, 2008Assignee: Kabushiki Kaisha ToshibaInventors: Kentaro Umesawa, Toshinari Takahashi -
Publication number: 20080082817Abstract: An authenticating device communicating with a server device includes: a dividing unit that divides secret information into plural secret fragments by a threshold secret sharing scheme; a first generating unit that generates plural cryptographic fragments by encrypting the secret fragments using first plural passwords; a first transmitting unit that transmits the cryptographic fragments to the server device; a first receiving unit that receives the cryptographic fragments from the server device, a second generating unit that generates plural secret fragment candidates by decrypting the cryptographic fragments using second plural passwords; a third generating unit that obtains a verifying information candidate by the threshold secret sharing scheme using a group of the secret fragment candidates; a second transmitting unit that transmits the verifying information candidate to the server device; and a second receiving unit that receives result information of comparing the verifying information candidate with verType: ApplicationFiled: March 21, 2007Publication date: April 3, 2008Applicant: Kabushiki Kaisha ToshibaInventors: Toshinari Takahashi, Kentaro Umesawa, Shinji Yamanaka
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Patent number: 7334264Abstract: An apparatus includes a server connected between a first computer network in which a computer virus may generate and a second computer network or a computer system as an object of security protection. In the apparatus, a collection unit collects irregular data representing a possibility of generation of the computer virus that may attack the server. A decision unit decides whether the computer virus is being generated on the computer network in accordance with the irregular data. A notification unit notifies the second computer network or the computer system of generation of the computer virus when the decision unit decides that the computer virus is being generated.Type: GrantFiled: February 14, 2003Date of Patent: February 19, 2008Assignee: Kabushiki Kaisha ToshibaInventor: Toshinari Takahashi
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Publication number: 20070250931Abstract: An apparatus includes a server connected between a first computer network in which a computer virus may generate and a second computer network or a computer system as an object of security protection. In the apparatus, a collection unit collects irregular data representing a possibility of generation of the computer virus that may attack the server. A decision unit decides whether the computer virus is being generated on the computer network in accordance with the irregular data. A notification unit notifies the second computer network or the computer system of generation of the computer virus when the decision unit decides that the computer virus is being generated.Type: ApplicationFiled: June 20, 2007Publication date: October 25, 2007Inventor: Toshinari Takahashi
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Publication number: 20070245418Abstract: An apparatus includes a server connected between a first computer network in which a computer virus may generate and a second computer network or a computer system as an object of security protection. In the apparatus, a collection unit collects irregular data representing a possibility of generation of the computer virus that may attack the server. A decision unit decides whether the computer virus is being generated on the computer network in accordance with the irregular data. A notification unit notifies the second computer network or the computer system of generation of the computer virus when the decision unit decides that the computer virus is being generated.Type: ApplicationFiled: June 20, 2007Publication date: October 18, 2007Inventor: Toshinari Takahashi
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Publication number: 20060257106Abstract: Systems and methods for selecting information associated with a removable storage medium are disclosed. A multimedia presentation, such as a movie, is stored on the removable storage medium. A provider key is used to identify a particular content provider, such as a film studio, with the removable storage medium. Other media content associated with the same content provider is activated at least partially in response to a determination that the removable storage medium of the content provider has been inserted into an information storage medium, such as a computer or a DVD player.Type: ApplicationFiled: April 12, 2006Publication date: November 16, 2006Inventors: Yoichiro Yamagata, Toshinari Takahashi, Tooru Kamibayashi, Toshimitsu Kaneko, Haruhiko Toyama, Hideki Mimura, Yasufumi Tsumagari, Yasuhiro Ishibashi, Takero Kobayashi, Seiichi Nakamura, Eita Shuto, Kazuhiko Taira, Hideaki Sato, Shunichi Kawabata
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Publication number: 20060242263Abstract: A content reproduction apparatus including reproduction unit configured to reproduce content data item stored in recording medium storing first server identifier and content data item including destination identifier, reads first server identifier from recording medium, to store first server identifier in table, certifies first server corresponding to first sever identifier, receives first server policy from first server being certified, first server policy including second server identifier redirecting to second server, to store second server identifier in table, certifies second server, acquires destination identifier while reproduction unit reproduces content data item, determines whether destination identifier being acquired is equal to first identifier stored in table, and accesses to second server, when at least destination identifier is equal to first identifier and second server is certified.Type: ApplicationFiled: June 20, 2006Publication date: October 26, 2006Applicant: Kabushiki Kaisha ToshibaInventors: Hideaki Sato, Toshinari Takahashi, Tooru Kamibayashi, Toshimitsu Kaneko, Haruhiko Toyama, Hideki Mimura, Yasufumi Tsumagari, Yasuhiro Ishibashi, Takero Kobayashi, Seiichi Nakamura, Eita Shuto, Kazuhiko Taira, Yoichiro Yamagata
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Publication number: 20060212697Abstract: A content reproduction apparatus (a) reads a specific server identifier, from a recording medium storing the specific server identifier and a content data item including a destination identifier, to store the specific server identifier in a table, (b) certifies a server corresponding to the specific sever identifier, (c) certifies the recording medium by use of a data item in a storage area of the recording medium designated by the server being certified, (d) reproduces the content data item stored in the recording medium, (e) acquires the destination identifier while reproducing the content data item, (f) determines whether the destination identifier being acquired is equal to the specific identifier stored in the table, and (g) accesses to the server when the destination identifier being acquired is equal to the specific server identifier, and the server and the recording medium are certified.Type: ApplicationFiled: May 17, 2006Publication date: September 21, 2006Applicant: Kabushiki Kaisha ToshibaInventors: Hideaki Sato, Toshinari Takahashi, Tooru Kamibayashi, Toshimitsu Kaneko
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Publication number: 20060161667Abstract: A server computer and a client computer determine a method of storing user identification information into a connection request packet therebetween. When establishing a connection with the server computer, the client computer stores its own user identification information in a server application into a connection request packet and transmits it. The server computer extracts the converted user identification information, and refers to a task storage table of the application based on the user identification information, and in the case where the task exists, the server computer transmits a connection request acknowledgement packet and establishes the connection.Type: ApplicationFiled: December 27, 2005Publication date: July 20, 2006Inventors: Kentaro Umesawa, Toshinari Takahashi
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Communication connection method, authentication method, server computer, client computer and program
Publication number: 20050094637Abstract: Communication connection method for connecting server computer to client computer via network, comprises storing group identification information items for identifying groups, in relation to information indicating number of connection request packets uniquely and secretly allocated to each group of groups, each group including users allowed to access server computer, counting connection request packets received from client computer within preset period to obtain counted number, determining whether information corresponds to counted number, acquiring one group of groups to which connection request packets corresponding to counted number are allocated, if information corresponds to counted number, determining whether resources of server computer are allocated to group indicated by acquired group identification item, generating connection request acknowledgement packet in response to at least one of received connection request packets, and transmitting generated connection request acknowledgement packet to netwoType: ApplicationFiled: September 24, 2004Publication date: May 5, 2005Inventors: Kentaro Umesawa, Toshinari Takahashi -
Publication number: 20040255183Abstract: A management OS having a higher level of safety than an active OS as a management target is prepared. In the management OS, an OS state detection unit detects the state of the active OS, and a data extraction unit reads out data in a storage device for the active OS. In this form, the two OSs operate in cooperation with each other, thus guaranteeing that all information necessary for failure restoration is sequentially left in a memory save device which the management OS has. This eliminates the difficulty in scheduling data storage and solves the problem that the data management system itself may be damaged by a computer virus and the like.Type: ApplicationFiled: November 24, 2003Publication date: December 16, 2004Inventor: Toshinari Takahashi
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Publication number: 20040205090Abstract: A file editing system that provides a high file content secrecy, a file version management and an asynchronous editing is disclosed. For a high file content secrecy, the block data of files managed by the a file management server device are enciphered in units of blocks, and the a client device obtains the block data of the desired file in enciphered state, deciphers the obtained block data in units of blocks, carries out an editing of the desired file to obtain editing data, enciphers the editing data in units of blocks, and transmits the enciphered editing data to the file management server device.Type: ApplicationFiled: May 5, 2004Publication date: October 14, 2004Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Atsushi Shimbo, Toshinari Takahashi, Ichiro Tomoda, Masao Murota
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Publication number: 20040205340Abstract: A file editing system that provides a high file content secrecy, a file version management and an asynchronous editing is disclosed. For a high file content secrecy, the block data of files managed by a file management server device are enciphered in units of blocks, and a client device obtains the block data of the desired file in enciphered state, deciphers the obtained block data in units of blocks, carries out an editing of the desired file to obtain editing data, enciphers the editing data in units of blocks, and transmits the enciphered editing data to the file management server device.Type: ApplicationFiled: May 5, 2004Publication date: October 14, 2004Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Atsushi Shimbo, Toshinari Takahashi, Ichiro Tomoda, Masao Murota
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Patent number: 6760840Abstract: A file editing system that provides a high file content secrecy, a file version management, and an asynchronous editing is disclosed. For a high file content secrecy, the block data of files managed by a file management server device are enciphered in units of blocks, and a client device obtains the block data of the desired file in enciphered state, deciphers the obtained block data in units of blocks, carries out an editing of the desired file to obtain editing data, enciphers the editing data in units of blocks, and transmits the enciphered editing data to the file management server device.Type: GrantFiled: August 26, 1998Date of Patent: July 6, 2004Assignee: Kabushiki Kaisha ToshibaInventors: Atsushi Shimbo, Toshinari Takahashi, Ichiro Tomoda, Masao Murato
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Publication number: 20030159064Abstract: An apparatus includes a server connected between a first computer network in which a computer virus may generate and a second computer network or a computer system as an object of security protection. In the apparatus, a collection unit collects irregular data representing a possibility of generation of the computer virus that may attack the server. A decision unit decides whether the computer virus is being generated on the computer network in accordance with the irregular data. A notification unit notifies the second computer network or the computer system of generation of the computer virus when the decision unit decides that the computer virus is being generated.Type: ApplicationFiled: February 14, 2003Publication date: August 21, 2003Applicant: Kabushiki Kaisha ToshibaInventor: Toshinari Takahashi
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Patent number: 6339774Abstract: An information sharing system using a computer so as to allow a plurality of users to share disclosed information, the system comprising, input section for receiving responses to the disclosed information from references of the disclosed information, evaluation information generation section for totalizing and processing the responses to generate evaluation information and storing the evaluation information after correlating it with the disclosed information, and evaluation information notifying section for presenting the evaluation information generated by the evaluation information generation section.Type: GrantFiled: January 28, 1998Date of Patent: January 15, 2002Assignee: Kabushiki Kaisha ToshibaInventors: Yasuko Nakayama, Kouichi Sasaki, Yoichi Takebayashi, Mika Fukui, Yoshihisa Ohtake, Kazuyuki Gotoh, Toshihiko Manabe, Toru Imai, Toshinari Takahashi