Patents by Inventor Motomasa Futagami
Motomasa Futagami 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: 10320759Abstract: A streaming system includes an authoring unit, a stream server and a client terminal. The authoring unit generates a file composed of encrypted contents data and the ancillary information at least containing the packetizing control information for generating an RTP packet, a non-encrypted codec dependent header made up of the information pertinent to encoded contents data, and the encryption information for decrypting the encrypted contents data form packet to packet. The streaming server packetizes the encrypted contents data along with at least the codec dependent header and distributes the resulting data as a stream. The client terminal refers to the codec dependent header of the received packet, re-assembles the packet, and decrypts the encrypted contents data of the re-assembled packet to generate contents data.Type: GrantFiled: June 22, 2015Date of Patent: June 11, 2019Assignee: Sony CorporationInventors: Motomasa Futagami, Tatsumi Sakaguchi, Masato Horiguchi
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Patent number: 9270661Abstract: This invention relates to provide a communication network system, a gateway, and a data communication method, in which the gateway has an advanced functionality. A person who issues an access request can retrieve a desired access destination easily by the following configuration: functions of routing information providing and authentication processing are added to a gateway that performs protocol conversion between two different communication networks; when an access request is issued from a public communication network such as Internet to a terminal in a local (private) communication network connected to the gateway, a request terminal is authenticated to enable prevention of unauthorized data writing and reading; and an access request user who succeeded in the authentication is provided with an active terminal list comprising accessible terminal information, or with a user condition table.Type: GrantFiled: December 3, 2013Date of Patent: February 23, 2016Assignee: Sony CorporationInventors: Youji Kawamoto, Motomasa Futagami, Motohiko Nagano
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Publication number: 20150312229Abstract: A streaming system includes an authoring unit, a stream server and a client terminal. The authoring unit generates a file composed of encrypted contents data and the ancillary information at least containing the packetizing control information for generating an RTP packet, a non-encrypted codec dependent header made up of the information pertinent to encoded contents data, and the encryption information for decrypting the encrypted contents data form packet to packet. The streaming server packetizes the encrypted contents data along with at least the codec dependent header and distributes the resulting data as a stream. The client terminal refers to the codec dependent header of the received packet, re-assembles the packet, and decrypts the encrypted contents data of the re-assembled packet to generate contents data.Type: ApplicationFiled: June 22, 2015Publication date: October 29, 2015Applicant: Sony CorporationInventors: Motomasa FUTAGAMI, Tatsumi SAKAGUCHI, Masato HORIGUCHI
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Patent number: 9088548Abstract: A streaming system includes an authoring unit (2), a stream server (3) and a client terminal (5). The authoring unit generates a file composed of encrypted contents data and the ancillary information at least containing the packetizing control information for generating an RTP packet, a non-encrypted codec dependent header made up of the information pertinent to encoded contents data, and the encryption information for decrypting the encrypted contents data form packet to packet. The streaming server packetizes the encrypted contents data along with at least the codec dependent header and distributes the resulting data as a stream. The client terminal refers to the codec dependent header of the received packet, re-assembles the packet, and decrypts the encrypted contents data of the re-assembled packet to generate contents data.Type: GrantFiled: October 9, 2013Date of Patent: July 21, 2015Assignee: Sony CorporationInventors: Motomasa Futagami, Tatsumi Sakaguchi, Masato Horiguchi
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Publication number: 20140095715Abstract: This invention relates to provide a communication network system, a gateway, and a data communication method, in which the gateway has an advanced functionality. A person who issues an access request can retrieve a desired access destination easily by the following configuration: functions of routing information providing and authentication processing are added to a gateway that performs protocol conversion between two different communication networks; when an access request is issued from a public communication network such as Internet to a terminal in a local (private) communication network connected to the gateway, a request terminal is authenticated to enable prevention of unauthorized data writing and reading; and an access request user who succeeded in the authentication is provided with an active terminal list comprising accessible terminal information, or with a user condition table.Type: ApplicationFiled: December 3, 2013Publication date: April 3, 2014Applicant: SONY CORPORATIONInventors: Youji Kawamoto, Motomasa Futagami, Motohiko Nagano
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Publication number: 20140040613Abstract: A streaming system includes an authoring unit (2), a stream server (3) and a client terminal (5). The authoring unit generates a file composed of encrypted contents data and the ancillary information at least containing the packetizing control information for generating an RTP packet, a non-encrypted codec dependent header made up of the information pertinent to encoded contents data, and the encryption information for decrypting the encrypted contents data form packet to packet. The streaming server packetizes the encrypted contents data along with at least the codec dependent header and distributes the resulting data as a stream. The client terminal refers to the codec dependent header of the received packet, re-assembles the packet, and decrypts the encrypted contents data of the re-assembled packet to generate contents data.Type: ApplicationFiled: October 9, 2013Publication date: February 6, 2014Applicant: Sony CorporationInventors: Motomasa Futagami, Tatsumi Sakaguchi, Masato Horiguchi
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Patent number: 8612630Abstract: This invention relates to provide a communication network system, a gateway, and a data communication method, in which the gateway has an advanced functionality. A person who issues an access request can retrieve a desired access destination easily by the following configuration: functions of routing information providing and authentication processing are added to a gateway that performs protocol conversion between two different communication networks; when an access request is issued from a public communication network such as Internet to a terminal in a local (private) communication network connected to the gateway, a request terminal is authenticated to enable prevention of unauthorized data writing and reading; and an access request user who succeeded in the authentication is provided with an active terminal list comprising accessible terminal information, or with a user condition table.Type: GrantFiled: July 25, 2012Date of Patent: December 17, 2013Assignee: Sony CorporationInventors: Youji Kawamoto, Motomasa Futagami, Motohiko Nagano
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Patent number: 8583927Abstract: A streaming system includes an authoring unit (2), a stream server (3) and a client terminal (5). The authoring unit generates a file composed of encrypted contents data and the ancillary information at least containing the packetizing control information for generating an RTP packet, a non-encrypted codec dependent header made up of the information pertinent to encoded contents data, and the encryption information for decrypting the encrypted contents data form packet to packet. The streaming server packetizes the encrypted contents data along with at least the codec dependent header and distributes the resulting data as a stream. The client terminal refers to the codec dependent header of the received packet, re-assembles the packet, and decrypts the encrypted contents data of the re-assembled packet to generate contents data.Type: GrantFiled: September 23, 2011Date of Patent: November 12, 2013Assignee: Sony CorporationInventors: Motomasa Futagami, Tatsumi Sakaguchi, Masato Horiguchi
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Patent number: 8572380Abstract: A streaming system includes an authoring unit (2), a stream server (3) and a client terminal (5). The authoring unit generates a file composed of encrypted contents data and the ancillary information at least containing the packetizing control information for generating an RTP packet, a non-encrypted codec dependent header made up of the information pertinent to encoded contents data, and the encryption information for decrypting the encrypted contents data form packet to packet. The streaming server packetizes the encrypted contents data along with at least the codec dependent header and distributes the resulting data as a stream. The client terminal refers to the codec dependent header of the received packet, re-assembles the packet, and decrypts the encrypted contents data of the re-assembled packet to generate contents data.Type: GrantFiled: October 29, 2003Date of Patent: October 29, 2013Assignee: Sony CorporationInventors: Motomasa Futagami, Tatsumi Sakaguchi, Masato Horiguchi
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Patent number: 8396805Abstract: A management apparatus includes a registering unit configured to issue a first key corresponding to a first service in response to a request for registration with the first service from a first information processing apparatus; a storage unit configured to store an apparatus ID of the first information processing apparatus, the first key, and a second key corresponding to a second service while associating the apparatus ID, the first key, and the second key with each other; and a composite license issuing unit configured to issue a composite license including a first license and a second license, the first license including first encrypted data, which is a content key that is used to decrypt the encrypted content and that is encrypted with the first key, and the second license including second encrypted data, which is the content key that is encrypted with the second key.Type: GrantFiled: April 27, 2007Date of Patent: March 12, 2013Assignee: Sony CorporationInventors: Seiichi Adachi, Yoji Kawamoto, Motomasa Futagami, Atsushi Nakamura, Mitsuhiro Nakamura
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Publication number: 20120311190Abstract: This invention relates to provide a communication network system, a gateway, and a data communication method, in which the gateway has an advanced functionality. A person who issues an access request can retrieve a desired access destination easily by the following configuration: functions of routing information providing and authentication processing are added to a gateway that performs protocol conversion between two different communication networks; when an access request is issued from a public communication network such as Internet to a terminal in a local (private) communication network connected to the gateway, a request terminal is authenticated to enable prevention of unauthorized data writing and reading; and an access request user who succeeded in the authentication is provided with an active terminal list comprising accessible terminal information, or with a user condition table.Type: ApplicationFiled: July 25, 2012Publication date: December 6, 2012Applicant: Sony CorporationInventors: Youji KAWAMOTO, Motomasa FUTAGAMI, Motohiko NAGANO
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Patent number: 8325919Abstract: The present invention is directed to a streaming system for encrypting compression-encoded image data to distribute it via network of a predetermined transport protocol, and a streaming server used in this system transmits, to a client terminal, on the RTP packet basis, stream data encrypted so that encryption is performed every encryption block size from the leading portion of each GOP without encrypting the last data having less than encryption block size. In this instance, portions of prior and/or posterior stream data are stored into an extended area of RTP header so that size of stream data transmitted every RTP packet is integral multiple of encryption block size. Further, size information of added prior additional data and/or posterior additional data are also stored into the extended area. This streaming server suppresses increase in size by encryption to have ability to support both real time production and down-load reproduction without replacement of encryption.Type: GrantFiled: April 24, 2008Date of Patent: December 4, 2012Assignee: Sony CorporationInventors: Keiko Tada, Ryuji Ishiguro, Motomasa Futagami
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Patent number: 8325918Abstract: The present invention is directed to a streaming system for encrypting compression-encoded image data to distribute it via network of a predetermined transport protocol, and a streaming server used in this system transmits, to a client terminal, on the RTP packet basis, stream data encrypted so that encryption is performed every encryption block size from the leading portion of each GOP without encrypting the last data having less than encryption block size. In this instance, portions of prior and/or posterior stream data are stored into an extended area of RTP header so that size of stream data transmitted every RTP packet is integral multiple of encryption block size. Further, size information of added prior additional data and/or posterior additional data are also stored into the extended area. This streaming server suppresses increase in size by encryption to have ability to support both real time production and down-load reproduction without replacement of encryption.Type: GrantFiled: January 28, 2003Date of Patent: December 4, 2012Assignee: Sony CorporationInventors: Keiko Tada, Ryuji Ishiguro, Motomasa Futagami
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Patent number: 8255573Abstract: This invention relates to provide a communication network system, a gateway, and a data communication method, in which the gateway has an advanced functionality. A person who issues an access request can retrieve a desired access destination easily by the following configuration: functions of routing information providing and authentication processing are added to a gateway that performs protocol conversion between two different communication networks; when an access request is issued from a public communication network such as Internet to a terminal in a local (private) communication network connected to the gateway, a request terminal is authenticated to enable prevention of unauthorized data writing and reading; and an access request user who succeeded in the authentication is provided with an active terminal list comprising accessible terminal information, or with a user condition table.Type: GrantFiled: February 7, 2008Date of Patent: August 28, 2012Assignee: Sony CorporationInventors: Youji Kawamoto, Motomasa Futagami, Motohiko Nagano
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Patent number: 8161129Abstract: Information of a terminal equipment used by a user among the pieces of terminal equipment connected to a network is registered in prescribed registering means and a transmission path from the terminal equipment of a transmitter to the terminal equipment of a receiver is determined based on the registered information of the terminal equipment, so that the user can assuredly transmit the information to the terminal equipment of the receiver in the transmission path suitable for the information without any consciousness of the user. The information of the terminal equipment used by a user and the terminal equipment connected to the terminal equipment used by the user among the pieces of terminal equipment connected to the network is registered in prescribed registering means together with information for identifying the user as available environmental information, and provided information is transmitted to the terminal equipment specified by the registered available environmental information.Type: GrantFiled: August 9, 2006Date of Patent: April 17, 2012Assignee: Sony CorporationInventors: Yoji Kawamoto, Hirofumi Kawamura, Motomasa Futagami, Motohiko Nagano
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Publication number: 20120016958Abstract: A streaming system includes an authoring unit (2), a stream server (3) and a client terminal (5). The authoring unit generates a file composed of encrypted contents data and the ancillary information at least containing the packetizing control information for generating an RTP packet, a non-encrypted codec dependent header made up of the information pertinent to encoded contents data, and the encryption information for decrypting the encrypted contents data form packet to packet. The streaming server packetizes the encrypted contents data along with at least the codec dependent header and distributes the resulting data as a stream. The client terminal refers to the codec dependent header of the received packet, re-assembles the packet, and decrypts the encrypted contents data of the re-assembled packet to generate contents data.Type: ApplicationFiled: September 23, 2011Publication date: January 19, 2012Applicant: Sony CorporationInventors: Motomasa Futagami, Tatsumi Sakaguchi, Masato Horiguchi
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Patent number: 7827113Abstract: Methods and systems of distributing digital content governed by a digital license are provided. In one aspect, the license has identification data for licensed content and is transmitted to a client device. A first item of content is transmitted to the client after receipt by the client of the license. The first item of content has first content identification data, and at least a portion of the first item of content is in encrypted form. A second item of content is transmitted to the client after receipt by the client of the license. The second item of content has second content identification data that is different from the first content identification data. At least a portion of the second item of content is in encrypted form. The encrypted portion of the first item of content is decrypted if the first content identification data corresponds to the identification data for licensed content.Type: GrantFiled: March 30, 2005Date of Patent: November 2, 2010Assignees: Sony Corporation, Sony Electronics Inc.Inventors: Keiko Saeki, Motomasa Futagami, Yoji Kawamoto, Motohiko Nagano
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Publication number: 20100023980Abstract: An information processing apparatus includes a content purchase history storage unit in which a content purchase history for each user is stored, a metadata storage unit in which metadata of a plurality of contents is stored, and a metadata retrieval unit to retrieve, upon reception of a metadata retrieval request that is sent from a terminal apparatus of the user via a network and includes information for identifying a user and a retrieval condition, metadata of a content that meets the retrieval condition from the metadata storage unit, judge whether the content retrieved has already been purchased based on the content purchase history of the user that is stored in the content purchase history storage unit, and send a retrieval result of the metadata of the content that includes a judgment result to the terminal apparatus via the network as a metadata retrieval response.Type: ApplicationFiled: July 15, 2009Publication date: January 28, 2010Inventors: Yasuaki Yamagishi, Hisato Shima, Tatsuya Igarashi, Kenji Fujisawa, Yoji Kawamoto, Motomasa Futagami, Yukako Nakajima
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Publication number: 20090010430Abstract: The present invention is directed to a streaming system for encrypting compression-encoded image data to distribute it via network of a predetermined transport protocol, and a streaming server used in this system transmits, to a client terminal, on the RTP packet basis, stream data encrypted so that encryption is performed every encryption block size from the leading portion of each GOP without encrypting the last data having less than encryption block size. In this instance, portions of prior and/or posterior stream data are stored into an extended area of RTP header so that size of stream data transmitted every RTP packet is integral multiple of encryption block size. Further, size information of added prior additional data and/or posterior additional data are also stored into the extended area. This streaming server suppresses increase in size by encryption to have ability to support both real time production and down-load reproduction without replacement of encryption.Type: ApplicationFiled: April 24, 2008Publication date: January 8, 2009Inventors: Keiko Tada, Ryuji Ishiguro, Motomasa Futagami
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Publication number: 20080130666Abstract: This invention relates to provide a communication network system, a gateway, and a data communication method, in which the gateway has an advanced functionality. A person who issues an access request can retrieve a desired access destination easily by the following configuration: functions of routing information providing and authentication processing are added to a gateway that performs protocol conversion between two different communication networks; when an access request is issued from a public communication network such as Internet to a terminal in a local (private) communication network connected to the gateway, a request terminal is authenticated to enable prevention of unauthorized data writing and reading; and an access request user who succeeded in the authentication is provided with an active terminal list comprising accessible terminal information, or with a user condition table.Type: ApplicationFiled: February 7, 2008Publication date: June 5, 2008Applicant: SONY CORPORATIONInventors: Youji Kawamoto, Motomasa Futagami, Motohiko Nagano