Patents by Inventor Kaoru Murase
Kaoru Murase 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: 10455189Abstract: A playback method according to one aspect of the present disclosure is performed by a Blu-ray device connected to a display device. The playback method includes obtaining, from a recording medium, output control information of content recorded on the recording medium; obtaining, from the recording medium, a video signal of the content recorded on the recording medium; and (a) outputting the obtained video signal to the display device without converting image quality of the video signal, when the obtained output control information does not restrict output of content using a first copyright protection technology, and (b) converting the image quality of the obtained video signal and outputting the video signal to the display device, when the obtained output control information restricts output of content using the first copyright protection technology and output using the first copyright protection technology is performed according to a type of the display device.Type: GrantFiled: March 28, 2019Date of Patent: October 22, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masayuki Kozuka, Kaoru Murase, Masaya Yamamoto
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Patent number: 10419789Abstract: A method includes: holding a device key provided to an information processing terminal; reading an encrypted content and conversion control information from a recording medium; decoding the read encrypted content using the held device key to obtain a decoded content; converting the decoded content into an export format to obtain an export content; generating playback right information indicating that the information processing terminal can play back the converted export content according to the read conversion control information; and controlling whether the playback right information can be generated according to a first flag.Type: GrantFiled: February 18, 2016Date of Patent: September 17, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masayuki Kozuka, Masaya Yamamoto, Kaoru Murase, Tadamasa Toma
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Publication number: 20190230316Abstract: A playback method according to one aspect of the present disclosure is performed by a Blu-ray device connected to a display device. The playback method includes obtaining, from a recording medium, output control information of content recorded on the recording medium; obtaining, from the recording medium, a video signal of the content recorded on the recording medium; and (a) outputting the obtained video signal to the display device without converting image quality of the video signal, when the obtained output control information does not restrict output of content using a first copyright protection technology, and (b) converting the image quality of the obtained video signal and outputting the video signal to the display device, when the obtained output control information restricts output of content using the first copyright protection technology and output using the first copyright protection technology is performed according to a type of the display device.Type: ApplicationFiled: March 28, 2019Publication date: July 25, 2019Inventors: Masayuki KOZUKA, Kaoru MURASE, Masaya YAMAMOTO
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Patent number: 10291879Abstract: A playback method according to one aspect of the present disclosure is performed by a Blu-ray device connected to a display device. The playback method includes obtaining, from a recording medium, output control information of content recorded on the recording medium; obtaining, from the recording medium, a video signal of the content recorded on the recording medium; and (a) outputting the obtained video signal to the display device without converting image quality of the video signal, when the obtained output control information does not restrict output of content using a first copyright protection technology, and (b) converting the image quality of the obtained video signal and outputting the video signal to the display device, when the obtained output control information restricts output of content using the first copyright protection technology and output using the first copyright protection technology is performed according to a type of the display device.Type: GrantFiled: January 12, 2018Date of Patent: May 14, 2019Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Masayuki Kozuka, Kaoru Murase, Masaya Yamamoto
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Patent number: 10169551Abstract: A method is provided that includes receiving a command for reading out content from a non-transitory recording medium, and identifying first version information indicating a version of a content copyright protection method. The method includes identifying second version information indicating a version of a protocol used in authentication of the host apparatus, and determining whether the authentication is to be approved or not. The method also includes authenticating the host apparatus according to a result of the determination, reading out medium-specific information, and sending the medium-specific information to the authenticated host apparatus. The method further includes reading out the encrypted content and sending the encrypted content to the authenticated host apparatus, wherein the first version information is identified based on disk information that is meta data stored at a beginning of the recording medium formed in a disk shape in the identifying first version information.Type: GrantFiled: March 1, 2018Date of Patent: January 1, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Masaya Yamamoto, Kaoru Murase
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Publication number: 20180302674Abstract: A file generating method according to one aspect of the present disclosure is a file generating method for generating an MP4 file, the file generating method including: step S11 of acquiring an original file made in a file format different from MP4; step S12 of acquiring a difference file including data that is not included in the original file; step S13 of acquiring a procedure file indicating a procedure for generating the MP4 file; and step S14 of generating the MP4 file by combining the data included in the difference file and data included in the original file in accordance with the procedure indicated in the procedure file.Type: ApplicationFiled: June 14, 2018Publication date: October 18, 2018Inventors: Tadamasa TOMA, Masaya YAMAMOTO, Hiroshi YAHATA, Tomoki OGAWA, Masayuki KOZUKA, Kaoru MURASE
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Patent number: 10028020Abstract: A file generating method according to one aspect of the present disclosure is a file generating method for generating an MP4 file, the file generating method including: step S11 of acquiring an original file made in a file format different from MP4; step S12 of acquiring a difference file including data that is not included in the original file; step S13 of acquiring a procedure file indicating a procedure for generating the MP4 file; and step S14 of generating the MP4 file by combining the data included in the difference file and data included in the original file in accordance with the procedure indicated in the procedure file.Type: GrantFiled: April 7, 2017Date of Patent: July 17, 2018Assignee: PANASONIC CORPORATIONInventors: Tadamasa Toma, Masaya Yamamoto, Hiroshi Yahata, Tomoki Ogawa, Masayuki Kozuka, Kaoru Murase
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Publication number: 20180189462Abstract: A method is provided that includes receiving a command for reading out content from a non-transitory recording medium, and identifying first version information indicating a version of a content copyright protection method. The method includes identifying second version information indicating a version of a protocol used in authentication of the host apparatus, and determining whether the authentication is to be approved or not. The method also includes authenticating the host apparatus according to a result of the determination, reading out medium-specific information, and sending the medium-specific information to the authenticated host apparatus. The method further includes reading out the encrypted content and sending the encrypted content to the authenticated host apparatus, wherein the first version information is identified based on disk information that is meta data stored at a beginning of the recording medium formed in a disk shape in the identifying first version information.Type: ApplicationFiled: March 1, 2018Publication date: July 5, 2018Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Masaya YAMAMOTO, Kaoru MURASE
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Publication number: 20180139406Abstract: A playback method according to one aspect of the present disclosure is performed by a Blu-ray device connected to a display device. The playback method includes obtaining, from a recording medium, output control information of content recorded on the recording medium; obtaining, from the recording medium, a video signal of the content recorded on the recording medium; and (a) outputting the obtained video signal to the display device without converting image quality of the video signal, when the obtained output control information does not restrict output of content using a first copyright protection technology, and (b) converting the image quality of the obtained video signal and outputting the video signal to the display device, when the obtained output control information restricts output of content using the first copyright protection technology and output using the first copyright protection technology is performed according to a type of the display device.Type: ApplicationFiled: January 12, 2018Publication date: May 17, 2018Inventors: Masayuki KOZUKA, Kaoru MURASE, Masaya YAMAMOTO
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Patent number: 9946849Abstract: A content reading method includes identifying first version information indicating a version of a content copyright protection method of an optical disk based on this optical disk, identifying second version information indicating a version of a protocol used in authentication of a host apparatus, determining whether the authentication is to be approved or not by comparing the first version information and the second version information, authenticating the host apparatus according to a result of the determination, reading out, from the optical disk, Volume ID used in decrypting an encrypted content and sending it to the authenticated host apparatus, and 0 the encrypted content from the optical disk and sending it to the authenticated host apparatus.Type: GrantFiled: September 15, 2015Date of Patent: April 17, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Masaya Yamamoto, Kaoru Murase
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Patent number: 9912903Abstract: A playback method according to one aspect of the present disclosure is performed by a Blu-ray device connected to a display device. The playback method includes obtaining, from a recording medium, output control information of content recorded on the recording medium; obtaining, from the recording medium, a video signal of the content recorded on the recording medium; and (a) outputting the obtained video signal to the display device without converting image quality of the video signal, when the obtained output control information does not restrict output of content using a first copyright protection technology, and (b) converting the image quality of the obtained video signal and outputting the video signal to the display device, when the obtained output control information restricts output of content using the first copyright protection technology and output using the first copyright protection technology is performed according to a type of the display device.Type: GrantFiled: February 2, 2016Date of Patent: March 6, 2018Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Masayuki Kozuka, Kaoru Murase, Masaya Yamamoto
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Patent number: 9865299Abstract: Provided is an information processing device including a data processing unit that executes reproduction processing of content recorded in an information recording medium. The content includes an individual segment region formed of a plurality of variation data in which identification information different from each other is embedded and each of which can be decrypted by a different key, and a common segment region formed of single data. The variation data is formed of a 6144 byte aligned unit. The data processing unit calculates a reproduction path by applying a device key held in a memory, and selects an aligned unit corresponding to one variation data that corresponds to the calculated reproduction path from a plurality of aligned units configuring the plurality of variation data in the individual segment region included in the data read from the information recording medium, and then, executes the decryption and reproduction processing.Type: GrantFiled: November 18, 2015Date of Patent: January 9, 2018Assignees: SONY CORPORATION, PANASONIC CORPORATIONInventors: Kenjiro Ueda, Tateo Oishi, Kouichi Uchimura, Masaya Yamamoto, Kaoru Murase, Hiroshi Yahata
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Patent number: 9818446Abstract: A method according to one aspect of the present disclosure includes the steps of: acquiring a play list including identification information indicating each of a plurality of elementary streams; selecting an elementary stream indicated by predetermined identification information from the acquired play list; acquiring a difference file including data that is not included in the selected elementary stream; and converting the selected elementary stream into an MP4 file format by combining data included in the difference file and data included in the selected elementary stream based on a manifest file corresponding to the selected elementary stream, the manifest file being necessary for the conversion of a file format based on a predetermined rule.Type: GrantFiled: January 21, 2016Date of Patent: November 14, 2017Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Tadamasa Toma, Tomoki Ogawa, Hiroshi Yahata, Masayuki Kozuka, Kaoru Murase, Masaya Yamamoto
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Publication number: 20170214969Abstract: A file generating method according to one aspect of the present disclosure is a file generating method for generating an MP4 file, the file generating method including: step S11 of acquiring an original file made in a file format different from MP4; step S12 of acquiring a difference file including data that is not included in the original file; step S13 of acquiring a procedure file indicating a procedure for generating the MP4 file; and step S14 of generating the MP4 file by combining the data included in the difference file and data included in the original file in accordance with the procedure indicated in the procedure file.Type: ApplicationFiled: April 7, 2017Publication date: July 27, 2017Inventors: Tadamasa TOMA, Masaya YAMAMOTO, Hiroshi YAHATA, Tomoki OGAWA, Masayuki KOZUKA, Kaoru MURASE
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Patent number: 9654823Abstract: A file generating method according to one aspect of the present disclosure is a file generating method for generating an MP4 file, the file generating method including: step S11 of acquiring an original file made in a file format different from MP4; step S12 of acquiring a difference file including data that is not included in the original file; step S13 of acquiring a procedure file indicating a procedure for generating the MP4 file; and step S14 of generating the MP4 file by combining the data included in the difference file and data included in the original file in accordance with the procedure indicated in the procedure file.Type: GrantFiled: January 22, 2016Date of Patent: May 16, 2017Assignee: PANASONIC CORPORATIONInventors: Tadamasa Toma, Masaya Yamamoto, Hiroshi Yahata, Tomoki Ogawa, Masayuki Kozuka, Kaoru Murase
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Patent number: 9596499Abstract: A content recording method for a recording apparatus includes the following steps: an automatic recording control step of automatically recording a first plurality of pieces of content in a channel automatic recording area, each of the first plurality of pieces of content being broadcast through a channel in a time slot; a deletion step of instructing a mobile apparatus to delete a first piece of content that has previously been copied or moved from the channel automatic recording area to the mobile apparatus when the recording apparatus detects that the recording apparatus has become able to communicate with the mobile apparatus; and a content transfer step of copying or moving a second piece of content included in the first plurality of pieces of content to the mobile apparatus when the recording apparatus detects that the recording apparatus has become able to communicate with the mobile apparatus.Type: GrantFiled: December 17, 2014Date of Patent: March 14, 2017Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Masayuki Kozuka, Masaya Yamamoto, Hiroshi Yahata, Shingo Matsumoto, Kaoru Murase, Tadamasa Toma, Tomoki Ogawa
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Publication number: 20160165267Abstract: A method includes: holding a device key provided to an information processing terminal; reading an encrypted content and conversion control information from a recording medium; decoding the read encrypted content using the held device key to obtain a decoded content; converting the decoded content into an export format to obtain an export content; generating playback right information indicating that the information processing terminal can play back the converted export content according to the read conversion control information; and controlling whether the playback right information can be generated according to a first flag.Type: ApplicationFiled: February 18, 2016Publication date: June 9, 2016Inventors: MASAYUKI KOZUKA, MASAYA YAMAMOTO, KAORU MURASE, TADAMASA TOMA
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Publication number: 20160156968Abstract: A file generating method according to one aspect of the present disclosure is a file generating method for generating an MP4 file, the file generating method including: step S11 of acquiring an original file made in a file format different from MP4; step S12 of acquiring a difference file including data that is not included in the original file; step S13 of acquiring a procedure file indicating a procedure for generating the MP4 file; and step S14 of generating the MP4 file by combining the data included in the difference file and data included in the original file in accordance with the procedure indicated in the procedure file.Type: ApplicationFiled: January 22, 2016Publication date: June 2, 2016Inventors: Tadamasa Toma, Masaya Yamamoto, Hiroshi Yahata, Tomoki Ogawa, Masayuki Kozuka, Kaoru Murase
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Publication number: 20160155466Abstract: Provided is an information processing device including a data processing unit that executes reproduction processing of content recorded in an information recording medium. The content includes an individual segment region formed of a plurality of variation data in which identification information different from each other is embedded and each of which can be decrypted by a different key, and a common segment region formed of single data. The variation data is formed of a 6144 byte aligned unit. The data processing unit calculates a reproduction path by applying a device key held in a memory, and selects an aligned unit corresponding to one variation data that corresponds to the calculated reproduction path from a plurality of aligned units configuring the plurality of variation data in the individual segment region included in the data read from the information recording medium, and then, executes the decryption and reproduction processing.Type: ApplicationFiled: November 18, 2015Publication date: June 2, 2016Applicants: SONY CORPORATION, PANASONIC CORPORATIONInventors: Kenjiro UEDA, Tateo OISHI, Kouichi UCHIMURA, Masaya YAMAMOTO, Kaoru MURASE, Hiroshi YAHATA
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Publication number: 20160155470Abstract: A method according to one aspect of the present disclosure includes the steps of: acquiring a play list including identification information indicating each of a plurality of elementary streams; selecting an elementary stream indicated by predetermined identification information from the acquired play list; acquiring a difference file including data that is not included in the selected elementary stream; and converting the selected elementary stream into an MP4 file format by combining data included in the difference file and data included in the selected elementary stream based on a manifest file corresponding to the selected elementary stream, the manifest file being necessary for the conversion of a file format based on a predetermined rule.Type: ApplicationFiled: January 21, 2016Publication date: June 2, 2016Inventors: TADAMASA TOMA, TOMOKI OGAWA, HIROSHI YAHATA, MASAYUKI KOZUKA, KAORU MURASE, MASAYA YAMAMOTO