Patents by Inventor Yasufumi Tsumagari

Yasufumi Tsumagari 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).

Information storage medium and information recording apparatus for storing video and audio signals distributed by digital broadcasting

Patent number: 6977871

Abstract: An information storage medium according to an embodiment of this invention includes a management area for recording management information, and a data area for recording content data. The content data recorded in the data area contains a plurality of object data, each object data contains a plurality of data units, each data unit contains a plurality of packs, each pack contains at least one packet, the packet contains at least one transport stream packet, the management information recorded in the management area contains program chain information which manages the playback order of data contained in the object data, the program chain information contains cell information, and the cell information contains information that specifies an object to be played back.

Type: Grant

Filed: January 30, 2003

Date of Patent: December 20, 2005

Assignee: Kabushiki Kaisha Toshiba

Inventors: Yasufumi Tsumagari, Shinichi Kikuchi, Kazuhiko Taira
Information recording medium, methods of recording/playback information onto/from recording medium

Publication number: 20050259968

Abstract: An information playback method includes playing back a playback sequence from an information recording medium having a data area including a management area storing management information and an object area storing an object managed by the management information, and a file information area which stores file information corresponding to a recording content of the data area, the object area storing a first object whose playback is managed in logical units as a program chain and a second object whose playback is managed separately from the first object, and the management area storing a playback sequence defining a playback condition of the second object, and playing back at least one of the first and second objects in accordance with the playback sequence.

Type: Application

Filed: May 20, 2005

Publication date: November 24, 2005

Inventors: Yasufumi Tsumagari, Hideki Mimura, Kazuhiko Taira, Yoichiro Yamagata
Information storage medium, information reproduction device, information reproduction method

Publication number: 20050254787

Abstract: An information storage medium records contents and sets for each of the contents a resume permission flag indicating whether or not reproduction resume is permitted by a reproduction resume command or a command of a reproduction device executed based on a user operation.

Type: Application

Filed: May 13, 2004

Publication date: November 17, 2005

Inventors: Hideo Ando, Kazuhiko Taira, Hideki Mimura, Teiichi Ichikawa, Yasufumi Tsumagari, Yoichiro Yamagata, Yumiko Taga, Minoru Ohta
Information storage medium and information recording apparatus for storing video and audio signals distributed by digital broadcasting

Publication number: 20050243865

Abstract: An information storage medium according to an embodiment of this invention includes a management area for recording management information, and a data area for recording content data. The content data recorded in the data area contains a plurality of object data, each object data contains a plurality of data units, each data unit contains a plurality of packs, each pack contains at least one packet, the packet contains at least one transport stream packet, the management information recorded in the management area contains program chain information which manages the playback order of data contained in the object data, the program chain information contains cell information, and the cell information contains information that specifies an object to be played back.

Type: Application

Filed: July 13, 2005

Publication date: November 3, 2005

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventors: Yasufumi Tsumagari, Shinichi Kikuchi, Kazuhiko Taira
Meta data for moving picture

Publication number: 20050244146

Abstract: An information playback method includes reading out information from a recording medium storing a stream which includes meta data of a moving picture capable of being played back upon playback of a video content, and which is formed of access units as data units capable of being processed independently, and storing specific information used to select a stream corresponding to the meta data in accordance with a moving picture playback period of the video content, and playing back the video content, and playing back the meta data with selecting a stream corresponding to the meta data on the basis of the specific information.

Type: Application

Filed: April 28, 2005

Publication date: November 3, 2005

Inventors: Yasufumi Tsumagari, Hideki Takahashi, Yoichiro Yamagata, Toshimitsu Kaneko, Tooru Kamibayashi, Hiroshi Isozaki
Meta data for moving picture

Publication number: 20050244147

Abstract: An information playback method includes reading out information from an information recording medium storing a stream which includes meta data of a moving picture capable of being played back upon playback of a video content and which is formed of access units as data units capable of being processed independently, and storing initialization information which includes buffer size information that designates a size of a buffer used upon playback of the meta data, and playing back the video content, and playing back the meta data with designating the size of the buffer on the basis of the buffer size information included in the initialization information.

Type: Application

Filed: April 28, 2005

Publication date: November 3, 2005

Inventors: Yoichiro Yamagata, Yasufumi Tsumagari, Hideki Takahashi, Toshimitsu Kaneko, Tooru Kamibayashi, Hiroshi Isozaki
Information storage medium and information recording apparatus for storing video and audio signals distributed by digital broadcasting

Publication number: 20050243864

Abstract: An information storage medium according to an embodiment of this invention includes a management area for recording management information, and a data area for recording content data. The content data recorded in the data area contains a plurality of object data, each object data contains a plurality of data units, each data unit contains a plurality of packs, each pack contains at least one packet, the packet contains at least one transport stream packet, the management information recorded in the management area contains program chain information which manages the playback order of data contained in the object data, the program chain information contains cell information, and the cell information contains information that specifies an object to be played back.

Type: Application

Filed: July 13, 2005

Publication date: November 3, 2005

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventors: Yasufumi Tsumagari, Shinichi Kikuchi, Kazuhiko Taira
Meta data for moving picture

Publication number: 20050244148

Abstract: An information playback method includes reading out information from a recording medium storing a stream which includes meta data of a moving picture capable of being played back upon playback of a video content, and which is formed of access units as data units capable of being processed independently, and storing a table which includes playback time information indicating a playback time of meta data, and which includes access position information indicating an access position of meta data, and playing back the video content, and playing back the meta data on the basis of the playback time information and the access position information included in the table.

Type: Application

Filed: April 28, 2005

Publication date: November 3, 2005

Inventors: Yasufumi Tsumagari, Hideki Takahashi, Yoichiro Yamagata, Toshimitsu Kaneko, Tooru Kamibayashi, Hiroshi Isozaki
Metadata for object in video

Publication number: 20050223034

Abstract: Metadata for an object in video includes first and second pieces of the metadata each including object property information of the object, property identification information for the object property information, and object region information indicating a position of the object in an image. If the second piece is the same as the first piece in a property of the object property information, the property identification information of the second piece is the same as the property identification information of the first piece and the second piece does not include the property in the object property information of the second piece.

Type: Application

Filed: January 27, 2005

Publication date: October 6, 2005

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventors: Toshimitsu Kaneko, Tooru Kamibayashi, Takeshi Nagai, Hideki Takahashi, Yasufumi Tsumagari
Meta data for moving picture

Publication number: 20050213666

Abstract: Meta data can efficiently use a buffer, allow random access, and reduce influence of a data loss when a process that combines a moving picture at a viewer and meta data at the viewer or on a network is to be executed. The meta data is formed by including one or more Vclick access units, each of which has data for specifying a lifetime, object region data that describes the spatio-temporal region in a moving image, and a display attribute/action attribute, and is a data unit that can be processed independently.

Type: Application

Filed: February 11, 2005

Publication date: September 29, 2005

Inventors: Toshimitsu Kaneko, Toru Kamibayashi, Hiroshi Isozaki, Yasufumi Tsumagari, Hideki Takahashi, Yoichiro Yamagata
Information recording medium, methods of recording/playback information onto/from recording medium

Publication number: 20050213941

Abstract: An information playback method includes playing back a playback sequence from an information recording medium storing a first object configured to be played back based on a program chain as a logical unit, a second object recorded independently of the first object and configured to be played back, and the playback sequence defining a playback condition of the second object, and playing back at least one of the first and second objects in accordance with the playback sequence.

Type: Application

Filed: March 21, 2005

Publication date: September 29, 2005

Inventors: Kazuhiko Taira, Yasufumi Tsumagari, Yoichiro Yamagata, Hideki Mimura
Digital video recording/playback system with entry point processing function

Patent number: 6944391

Abstract: This invention allows the user to insert an entry point (bookmark) at an arbitrary recording position of video data, audio data, and the like as if he or she placed a bookmark between pages of a book. Information RTR_VMG that manages recorded objects includes movie cell entry point information M_C_EPI. M_C_EPI includes entry point playback time information EP_PTM and text information PRM_TXTI that pertains to an entry point. PRM_TXTI can store text information that pertains to its contents together with type information and date information of an entry point.

Type: Grant

Filed: March 10, 2004

Date of Patent: September 13, 2005

Assignee: Kabushiki Kaisha Toshiba

Inventors: Yasufumi Tsumagari, Shinichi Kikuchi
Information recording medium, information recording method, information playback method, information recording apparatus, and information playback apparatus

Publication number: 20050152256

Abstract: An information recording medium for recording a digital stream signal, comprises a management region for storing control information and a table of identifiers representing manufactures of recording devices, and a data region for storing objects storing portions of the digital stream signal and number information for specifying an identifier in the table representing a manufacturer of a recording device which records the objects in the data region.

Type: Application

Filed: January 3, 2005

Publication date: July 14, 2005

Inventors: Shinichi Kikuchi, Masahiro Nakashika, Yasufumi Tsumagari
Information recording medium, information recording method, information playback method, information recording apparatus, and information playback apparatus

Publication number: 20050123284

Abstract: To relatively simplify the apparatus arrangement while supporting many variations of streams to be processed, management information of a disc includes option support information that designates a combination of a base format and one or more options. An apparatus using this disc can specify predetermined types of decode formats on the basis of the contents of this option support information.

Type: Application

Filed: September 21, 2004

Publication date: June 9, 2005

Inventors: Shinichi Kikuchi, Masahiro Nakashika, Yasufumi Tsumagari
Reproducing apparatus and reproducing method

Publication number: 20050123267

Abstract: A reproducing apparatus comprises a reading portion which reads image information stored in a disk, a reproducing portion which reproduces the image information read by the reader portion, a specifying portion which specifies an object on the reproduced image information, and a display portion which makes a display relating to the object based on extended information associated with the object specified by the specifying portion.

Type: Application

Filed: November 12, 2004

Publication date: June 9, 2005

Inventors: Yasufumi Tsumagari, Tooru Kamibayashi, Toshimitsu Kaneko, Hideki Takahashi, Takeshi Nagai
Information storage medium, information reproduction device, information reproduction method

Publication number: 20050123280

Abstract: An information storage medium stores a graphic unit capable of being superimposed upon a main picture and output/displayed.

Type: Application

Filed: November 16, 2004

Publication date: June 9, 2005

Inventors: Kazuhiko Taira, Hideo Ando, Hideki Mimura, Teiichi Ichikawa, Yasufumi Tsumagari, Yoichiro Yamagata, Yumiko Taga, Minoru Ohta
Information recording medium, information recording method, information reproducing method, information recording apparatus, and information reproducing apparatus

Publication number: 20050100322

Abstract: An information recording medium comprises a data area for recording a emergency broadcasting program, and a management area for recording management information of the emergency broadcasting program. A information reproducing apparatus comprises means for determining whether or not the management information of the emergency broadcasting program has been recorded in the management area, means for searching the emergency broadcasting program recorded in the data area when it is determined that the management information of the emergency broadcasting program is recorded in the management area, and means for displaying a search result of the searching means.

Type: Application

Filed: September 20, 2004

Publication date: May 12, 2005

Inventors: Shinichi Kikuchi, Masahiro Nakashika, Yasufumi Tsumagari
Digital AV information recording medium, and recording/playback method and recording/playback apparatus using the medium

Publication number: 20050058434

Abstract: This invention provides a digital stream recording medium which can append a thumbnail to each entry point. Thumbnail information is stored in an area independent from moving picture information. Management information includes cell information corresponding a part of a program, and the cell information includes entry point information indicating an entry position into the program. The entry point information is configured to have pointer information used to designate the thumbnail information.

Type: Application

Filed: July 16, 2004

Publication date: March 17, 2005

Inventors: Masahiro Nakashika, Shinichi Kikuchi, Yasufumi Tsumagari
Information storage medium, information reproduction device, information reproduction method

Publication number: 20050013207

Abstract: An information reproduction device comprises means for storing a first menu language code which can be set by a user; and means for storing a second menu language code which can be set by data recorded in an information storage medium.

Type: Application

Filed: May 13, 2004

Publication date: January 20, 2005

Inventors: Yasufumi Tsumagari, Hideki Mimura, Kazuhiko Taira, Hideo Ando, Yoichiro Yamagata, Teiichi Ichikawa, Yumiko Taga, Minoru Ohta
Information storage medium, information reproduction device, information reproduction method

Publication number: 20050013590

Abstract: An information reproduction method comprises setting an imaginary access unit in a video object in which a still picture is recorded; and managing reproduction by use of the imaginary access unit.

Type: Application

Filed: May 13, 2004

Publication date: January 20, 2005

Inventors: Hideo Ando, Kazuhiko Taira, Hideki Mimura, Teiichi Ichikawa, Yasufumi Tsumagari, Yoichiro Yamagata, Yumiko Taga, Minoru Ohta

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