Patents by Inventor Kensaku Fujimoto
Kensaku Fujimoto 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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Publication number: 20140380470Abstract: Systems and methods are described for secure and seamless roaming between internal and external networks. Double and triple tunnels may be used to connect a mobile node to a correspondent host. A mobile node may include the ability to connect to two networks simultaneously to enable seamless roaming between networks.Type: ApplicationFiled: July 28, 2014Publication date: December 25, 2014Applicants: TOSHIBA AMERICA RESEARCH, INC., ERICSSON INC.Inventors: Kenichi Taniuchi, Tao Zhang, Prathima Agrawal, Ashutosh Dutta, Sunil Madhani, Shinichi Baba, Kensaku Fujimoto, Yasuhiro Katsube, Toshikazu Kodama, Yoshihiro Ohba
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Patent number: 8792454Abstract: Systems and methods are described for secure and seamless roaming between internal and external networks. Double and triple tunnels may be used to connect a mobile node to a correspondent host. A mobile node may include the ability to connect to two networks simultaneously to enable seamless roaming between networks.Type: GrantFiled: July 20, 2012Date of Patent: July 29, 2014Assignees: Toshiba America Resesarch, Inc., Telcordia Inc.Inventors: Kenichi Taniuchi, Tao Zhang, Prathima Agrawal, Ashutosh Dutta, Sunil Madhani, Shinichi Baba, Kensaku Fujimoto, Yasuhiro Katsube, Toshikazu Kodama, Yoshihiro Ohba
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Patent number: 8737812Abstract: According to one embodiment, a content playback apparatus includes a playback module, a decision module, and a management module. The playback module is configured to play back a content includes components selected from moving picture data, image data, sound data and text data, thereby to produce video data and audio data. The decision module is configured to determine, based on a state of the content playback apparatus, whether the components of the content can be viewed and listened to. The management module is configured to manage video-audio management data includes data items based on a decision result of the decision module, each data item representing whether a video or audio data item has been viewed or listened to.Type: GrantFiled: October 27, 2011Date of Patent: May 27, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Kenji Odaka, Satoshi Ozaki, Naoki Esaka, Shirou Wakayama, Kensaku Fujimoto, Yosuke Takahashi
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Patent number: 8706780Abstract: A content item recommendation device includes; a storage which stores information of a plurality of content items describing identifiers and usage characteristics of the resources used in the content items; a first specifying unit which specifies first content items which use at least S number of resources in common with a specified content item; a second specifying unit which specifies second content items which use at least K number of resources in common with each of the first content items; a calculator which calculates relationship levels between the specified content item and each of the second content items; a selector which selects recommended content items from the second content items based on the relationship levels.Type: GrantFiled: September 16, 2009Date of Patent: April 22, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Eiji Tokita, Satoshi Ozaki, Kenji Odaka, Shirou Wakayama, Yoshiki Terashima, Kensaku Fujimoto
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Patent number: 8688834Abstract: According to some embodiments, systems and methods for binding dynamic host configuration and network access authentication are provided related to, inter alia, interactions between a PAA (PANA Authentication Agent) and a DHCP (Dynamic Host Configuration Protocol) server, such as, e.g., for synchronization between the PANA SA state and the DHCP SA state, such as, e.g., maintaining synchronization when a connection is lost. In some embodiments, systems and methods for binding network bridge and network access authentication are also provided related to, inter alia, interactions between a PAA and a layer-2 switch, such as, e.g., for avoiding service thefts and the like (such as, e.g., MAC address and/or IP address spoofing) in the context of, e.g., the above. In some other embodiments, systems and methods for bootstrapping multicast security from network access authentication protocol are also provided related to, inter alia, key management for protected IP multicast streams, such as, e.g.Type: GrantFiled: October 29, 2004Date of Patent: April 1, 2014Assignees: Toshiba America Research, Inc., Telcordia Technologies, Inc.Inventors: Kensaku Fujimoto, Yasuhiro Katsube, Yoshihiro Oba
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Patent number: 8478943Abstract: A first acquisition unit acquires each of the resources defined by the scenario, from locations depending on identifiers of the resources. A judging unit judge, when a resource having same identifier and structure as the resource acquired is existent in the cache storage, erases the resource, the identifier thereof, and the receipt time information from the cache storage, and when not existent, stores the acquired resource in association with the identifier thereof and the receipt time information of the bookmark instruction, in the cache storage. A second acquisition, when the identifiers of the resources specified by a first scenario are existent in the cache storage, acquires the resources from the cache storage according to the receipt time information corresponding to the first scenario and identifiers of the resources, and when not existent, acquires the resources from a location depending on the identifiers.Type: GrantFiled: August 10, 2011Date of Patent: July 2, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Shirou Wakayama, Satoshi Ozaki, Naoki Esaka, Kensaku Fujimoto, Kenji Odaka, Yosuke Takahashi
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Patent number: 8341243Abstract: An apparatus includes unit storing scripts includes a tree structure, each of the scripts including at least one of a child-node script and content, unit selecting a parent-node script among the scripts, and acquiring to analyze a child-node script if the child-node script exists, unit acquiring content if content exists, unit retrieving substitute content if the acquisition of content ends in failure and if content indicates retrieving substitute content, unit retrieving the substitute-child-node script if the acquisition of the child-node script ends in failure and if the child-node script indicates retrieving the substitute-child-node script, and retrieving the substitute-parent-node script when content or the child-node script shows retrieving the substitute-parent-node script, unit acquiring substitute content when substitute content is found, unit acquiring the substitute-child-node script and the substitute-parent-node script when the substitute-child-node script and the substitute-parent-node script aType: GrantFiled: October 19, 2009Date of Patent: December 25, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Kenji Odaka, Satoshi Ozaki, Eiji Tokita, Shirou Wakayama, Yoshiki Terashima, Kensaku Fujimoto
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Publication number: 20120287904Abstract: Systems and methods are described for secure and seamless roaming between internal and external networks. Double and triple tunnels may be used to connect a mobile node to a correspondent host. A mobile node may include the ability to connect to two networks simultaneously to enable seamless roaming between networks.Type: ApplicationFiled: July 20, 2012Publication date: November 15, 2012Applicants: TELCORDIA INC., TOSHIBA AMERICA RESEARCH, INC.Inventors: Kenichi TANIUCHI, Tao ZHANG, Prathima AGRAWAL, Ashutosh DUTTA, Sunil MADHANI, Shinichi BABA, Kensaku FUJIMOTO, Yasuhiro KATSUBE, Toshikazu KODAMA, Yoshihiro OHBA
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Publication number: 20120219270Abstract: According to one embodiment, a content playback apparatus includes a playback module, a decision module, and a management module. The playback module is configured to play back a content includes components selected from moving picture data, image data, sound data and text data, thereby to produce video data and audio data. The decision module is configured to determine, based on a state of the content playback apparatus, whether the components of the content can be viewed and listened to. The management module is configured to manage video-audio management data includes data items based on a decision result of the decision module, each data item representing whether a video or audio data item has been viewed or listened to.Type: ApplicationFiled: October 27, 2011Publication date: August 30, 2012Inventors: Kenji Odaka, Satoshi Ozaki, Naoki Esaka, Shirou Wakayama, Kensaku Fujimoto, Yosuke Takahashi
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Patent number: 8243687Abstract: Systems and methods are described for secure and seamless roaming between internal and external networks. Double and triple tunnels may be used to connect a mobile node to a correspondent host. A mobile node may include the ability to connect to two networks simultaneously to enable seamless roaming between networks.Type: GrantFiled: June 21, 2011Date of Patent: August 14, 2012Assignees: Toshiba America Research, Inc., Telcordia, Inc.Inventors: Kenichi Taniuchi, Tao Zhang, Prathima Agrawal, Ashutosh Dutta, Sunil Madhani, Shinichi Baba, Kensaku Fujimoto, Yasuhiro Katsube, Toshikazu Kodama, Yoshihiro Ohba
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Publication number: 20120166732Abstract: A first acquisition unit acquires each of the resources defined by the scenario, from locations depending on identifiers of the resources. A judging unit judge, when a resource having same identifier and structure as the resource acquired is existent in the cache storage, erases the resource, the identifier thereof, and the receipt time information from the cache storage, and when not existent, stores the acquired resource in association with the identifier thereof and the receipt time information of the bookmark instruction, in the cache storage. A second acquisition, when the identifiers of the resources specified by a first scenario are existent in the cache storage, acquires the resources from the cache storage according to the receipt time information corresponding to the first scenario and identifiers of the resources, and when not existent, acquires the resources from a location depending on the identifiers.Type: ApplicationFiled: August 10, 2011Publication date: June 28, 2012Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Shirou WAKAYAMA, Satoshi OZAKI, Naoki ESAKA, Kensaku FUJIMOTO, Kenji ODAKA, Yosuke TAKAHASHI
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Patent number: 8201091Abstract: The program synthesizing device according to the embodiment of the present invention includes: a coupling unit configured to couple an information acquiring plug-in module, an information processing plug-in module, and a presentation plug-in module through their input interfaces and output interfaces based on a mashup scenario; a plug-in module driving unit configured to sequentially drive the coupled plug-in modules; an information acquiring unit configured to acquire information when the information acquiring plug-in module is driven; an information processing unit configured to perform a predetermined process on the information when the information processing plug-in module is driven; an object resolving unit configured to determine a value of object presented by a specified presentation scenario when the presentation plug-in module is driven; and a program output unit configured to output a program being a presentation scenario in which the object value is resolved.Type: GrantFiled: August 3, 2011Date of Patent: June 12, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Satoshi Ozaki, Naoki Esaka, Kensaku Fujimoto, Shirou Wakayama, Kenji Odaka, Yosuke Takahashi
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Publication number: 20120137222Abstract: The program synthesizing device according to the embodiment of the present invention includes: a coupling unit configured to couple an information acquiring plug-in module, an information processing plug-in module, and a presentation plug-in module through their input interfaces and output interfaces based on a mashup scenario; a plug-in module driving unit configured to sequentially drive the coupled plug-in modules; an information acquiring unit configured to acquire information when the information acquiring plug-in module is driven; an information processing unit configured to perform a predetermined process on the information when the information processing plug-in module is driven; an object resolving unit configured to determine a value of object presented by a specified presentation scenario when the presentation plug-in module is driven; and a program output unit configured to output a program being a presentation scenario in which the object value is resolved.Type: ApplicationFiled: August 3, 2011Publication date: May 31, 2012Inventors: Satoshi Ozaki, Naoki Esaka, Kensaku Fujimoto, Shirou Wakayama, Kenji Odaka, Yosuke Takahashi
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Publication number: 20110249653Abstract: Systems and methods are described for secure and seamless roaming between internal and external networks. Double and triple tunnels may be used to connect a mobile node to a correspondent host. A mobile node may include the ability to connect to two networks simultaneously to enable seamless roaming between networks.Type: ApplicationFiled: June 21, 2011Publication date: October 13, 2011Applicants: TELCORDIA TECHNOLOGIES INC., TOSHIBA AMERICA RESEARCH INC. (TARI)Inventors: Kenichi TANIUCHI, Tao ZHANG, Prathima AGRAWAL, Ashutosh DUTTA, Sunil MADHANI, Shinichi BABA, Kensaku FUJIMOTO, Yasuhiro KATSUBE, Toshikazu KODAMA, Yoshihiro OHBA
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Patent number: 7978655Abstract: Systems and methods are described for secure and seamless roaming between internal and external networks. Double and triple tunnels may be used to connect a mobile node to a correspondent host. A mobile node may include the ability to connect to two networks simultaneously to enable seamless roaming between networks.Type: GrantFiled: July 21, 2004Date of Patent: July 12, 2011Assignees: Toshiba America Research Inc., Telcordia Technologies, Inc.Inventors: Kenichi Taniuchi, Tao Zhang, Prathima Agrawal, Ashutosh Dutta, Sunil Madhani, Shinichi Baba, Kensaku Fujimoto, Yasuhiro Katsube, Toshikazu Kodama, Yoshihiro Ohba
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Publication number: 20100241730Abstract: An information processing apparatus has an information acquiring unit which acquires a plurality of pieces of information over a network in accordance with an acquisition script included in a scenario, an information converting unit which extracts portions represented to a user from the respective pieces of acquired information in accordance with a conversion script included in the scenario, a movement adding unit which processes all or part of the presented portion so that display contents can be presented in such a form as to change and/or be accompanied with the sound output in accordance with a movement adding script included in the scenario, a statistics recording unit which records processing cost for each of the information acquiring unit, the information converting unit and the movement adding unit, an extraction unit which extracts dependency information showing a dependency relationship between the processes from the scenario, and a control unit which determines the priority of the processes to be cType: ApplicationFiled: September 17, 2009Publication date: September 23, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kensaku FUJIMOTO, Satoshi Ozaki, Yoshiki Terashima, Shirou Wakayama, Kenji Odaka, Eiji Tokita
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Publication number: 20100198945Abstract: An apparatus includes unit storing scripts includes a tree structure, each of the scripts including at least one of a child-node script and content, unit selecting a parent-node script among the scripts, and acquiring to analyze a child-node script if the child-node script exists, unit acquiring content if content exists, unit retrieving substitute content if the acquisition of content ends in failure and if content indicates retrieving substitute content, unit retrieving the substitute-child-node script if the acquisition of the child-node script ends in failure and if the child-node script indicates retrieving the substitute-child-node script, and retrieving the substitute-parent-node script when content or the child-node script shows retrieving the substitute-parent-node script, unit acquiring substitute content when substitute content is found, unit acquiring the substitute-child-node script and the substitute-parent-node script when the substitute-child-node script and the substitute-parent-node script aType: ApplicationFiled: October 19, 2009Publication date: August 5, 2010Inventors: Kenji Odaka, Satoshi Ozaki, Eiji Tokita, Shirou Wakayama, Yoshiki Terashima, Kensaku Fujimoto
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Publication number: 20100180203Abstract: A content item recommendation device includes; a storage which stores information of a plurality of content items describing identifiers and usage characteristics of the resources used in the content items; a first specifying unit which specifies first content items which use at least S number of resources in common with a specified content item; a second specifying unit which specifies second content items which use at least K number of resources in common with each of the first content items; a calculator which calculates relationship levels between the specified content item and each of the second content items; a selector which selects recommended content items from the second content items based on the relationship levels.Type: ApplicationFiled: September 16, 2009Publication date: July 15, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Eiji TOKITA, Satoshi Ozaki, Kenji Odaka, Shirou Wakayama, Yoshiki Terashima, Kensaku Fujimoto
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Patent number: 7673152Abstract: In a microprocessor, a program key for decrypting a program and a data key for encrypting/decrypting data processed by the program are handled as cryptographically inseparable pair inside the microprocessor, so that it becomes possible for the microprocessor to protect processes that actually execute the program, without an intervention of the operating system, and it becomes possible to conceal secret information of the program not only from the other user program but also from the operating system.Type: GrantFiled: January 20, 2006Date of Patent: March 2, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Kenji Shirakawa, Mikio Hashimoto, Keiichi Teramoto, Satoshi Ozaki, Kensaku Fujimoto
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Patent number: 7673155Abstract: A tamper resistant microprocessor has a task state table for assigning a task identifier to a task that can take a plurality of states, and storing a state of the task in correspondence to the task identifier; a task register for storing the task identifier of a currently executed task; an interface for reading a program stored in a form encrypted by using a program key at an external memory, in units of cache lines, when a request for the task is made; an encryption processing unit for generating decryption keys that are different for different cache lines, according to the program key, and decrypt a content read by the interface; a cache memory formed by a plurality of cache lines each having a tag, for storing the task identifier corresponding to a decryption key used in decrypting each cache line in the tag of each cache line; and an access check unit for comparing the task identifier stored in the tag of each cache line with a value of the task register, and discarding a content of each cache line when tType: GrantFiled: May 9, 2008Date of Patent: March 2, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Mikio Hashimoto, Kensaku Fujimoto, Kenji Shirakawa