Patents by Inventor Yoshikazu Takashima

Yoshikazu Takashima 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).

  • Patent number: 7917964
    Abstract: A method and apparatus for processing information, method and apparatus for manufacturing an information recording medium, an information recording medium, and a computer program are provided. An information processing apparatus for playing back a content recorded on an information recording medium and includes a data transform processor performing a substitution process on content member data recorded on the information recording medium. The data transform processor substitutes transform data as substitute data for the content member data in accordance with a fix-up table holding recording position information of the transform data.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: March 29, 2011
    Assignee: Sony Corporation
    Inventors: Yoshikazu Takashima, Kenjiro Ueda, Tateo Oishi, Katsumi Muramatsu, Jun Yonemitsu
  • Publication number: 20110035423
    Abstract: The present invention relates to a reproducing apparatus, a reproducing method, a program, a program storage medium, a data delivery system, a data structure, and a manufacturing method of a recording medium for easily handling a content file recorded on a disk and an update file recorded on a local storage. Downloaded data can be handled with a file having a path name and a file name on the local storage being different from a file having a path name and a file name on a virtual file system based on a path name specified by an src_file_name field of and a path name specified by a dst_file_name field of a manifest ( ) section. The present invention is applicable to reproducing apparatuses.
    Type: Application
    Filed: October 15, 2010
    Publication date: February 10, 2011
    Applicant: SONY CORPORATION
    Inventors: Yoshiyuki KOBAYASHI, Kouichi UCHIMURA, Kazuo YAMAMOTO, Yoshikazu TAKASHIMA, Kenjiro UEDA
  • Patent number: 7885512
    Abstract: An information processing apparatus plays back content including a plurality of divided playback zones, a playlist being associated with each of the divided playback zones. The information processing apparatus includes a playlist selection information obtaining unit obtaining a plurality of pieces of playlist selection information including information concerning a playback sequence of play items which are set as content playback unit data, the plurality of pieces of playlist selection information being obtained in accordance with the number of playback zones included in the content, a playlist selector selecting a plurality of playlists on the basis of the plurality of pieces of playlist selection information obtained by the playlist selection information obtaining unit, a playlist integrating processor generating an integrated playlist by integrating the plurality of playlists selected by the playlist selector, and a content playback unit playing back the content on the basis of the integrated playlist.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: February 8, 2011
    Assignee: Sony Corporation
    Inventors: Yoshikazu Takashima, Kenjiro Ueda, Tateo Oishi, Motoki Kato, Katsumi Muramatsu
  • Patent number: 7874003
    Abstract: An information recording medium, storing: main contents having constituent data according to a predetermined format and subcontents having constituent data not according to the predetermined format, as recorded data; the main contents and the subcontents having constituent data established as contents management units; the contents management units including data stored as encrypted data based on individual unit keys associated respectively with the contents management units.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: January 18, 2011
    Assignee: Sony Corporation
    Inventor: Yoshikazu Takashima
  • Publication number: 20100332849
    Abstract: An information processing apparatus includes: a data processing unit that acquires content codes including a data processing program recorded in an information recording medium and executes data processing according to the content codes; and a memory that stores an apparatus certificate including an apparatus identifier of the information processing apparatus. The data processing unit is configured to execute an apparatus checking process applying the apparatus certificate stored in the memory on the basis of a code for apparatus checking process included in the content codes, acquire the apparatus identifier recorded in the apparatus certificate after the apparatus checking process, and execute data processing applying content codes corresponding to the acquired apparatus identifier.
    Type: Application
    Filed: September 2, 2010
    Publication date: December 30, 2010
    Applicant: Sony Corporation
    Inventor: Yoshikazu TAKASHIMA
  • Patent number: 7859958
    Abstract: An information-recording apparatus is disclosed wherein FSes can be optimized. The information-recording apparatus includes an FS extraction section for extracting a plurality of FSes from a plurality of FS-recording areas on a recording medium; an FS synthesis section for synthesizing the FSes extracted by the FS extraction section into one FS; and an FS-recording section for recording the FS produced by the FS synthesis section as a result of synthesis into a new area on the recording medium.
    Type: Grant
    Filed: October 24, 2005
    Date of Patent: December 28, 2010
    Assignee: Sony Corporation
    Inventors: Yoshikazu Takashima, Mitsutoshi Terada
  • Publication number: 20100322044
    Abstract: There is provided an apparatus and a method determining a data arrangement that guarantees seamless reproduction even in a case of occurrence of a jump in a browsable slide show. An allowable jump range between an image data clip and an audio data clip required for data reading in the browsable slide show in which a consecutive reproduction processing of a still image and an audio reproduction processing are performed in parallel is determined so as to determine arrangement conditions of data to be stored in an information recording medium on the basis of the determined allowable jump range. This configuration enables the browsable slide show to be carried out as a seamless reproduction processing without any data discontinuity. Furthermore, it becomes possible to provide a plurality of combinations of readout rates of the audio data and image data.
    Type: Application
    Filed: August 10, 2010
    Publication date: December 23, 2010
    Applicant: SONY CORPORATION
    Inventors: Yoshikazu TAKASHIMA, Motoki Kato
  • Patent number: 7826620
    Abstract: An information processor includes a data processing section that executes a processing of storing subsequently generated data, which is subsequently generated or acquired using information read from an information recording medium, onto a storage unit. The data processing section is configured to execute a processing of storing onto the storage unit encrypted subsequently generated data as encrypted data that is encrypted with a unit key as an encryption key corresponding to a content management unit to which the subsequently generated data belongs, and execute a processing of acquiring an encrypted bind unit key and storing the encrypted bind unit key onto the storage unit, the encrypted bind unit key being encrypted data of a bind unit key including as its constituent data the unit key and one of key information acquired from the information processor and identification information acquired from the information recording medium.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: November 2, 2010
    Assignee: Sony Corporation
    Inventors: Kenjiro Ueda, Tateo Oishi, Katsumi Muramatsu, Yoshikazu Takashima
  • Publication number: 20100260020
    Abstract: An information processing apparatus includes a data processing section configured to generate data that is capable of being played back using general playback control information containing clip information defining the number of playback packets. The data processing section generates a data file in which data containing a number of playback packets, the number matching the defined number of playback packets, is contained as playback data associated with the clip information.
    Type: Application
    Filed: April 14, 2009
    Publication date: October 14, 2010
    Applicants: SONY CORPORATION, SONY PICTURES ENTERTAINMENT, INC.
    Inventors: Kouichi UCHIMURA, Yoshikazu TAKASHIMA
  • Patent number: 7783685
    Abstract: An information recording/reproducing apparatus is disclosed which includes: a recording section for recording files to a storage medium; an arranging section for arranging the files into groups by attribute so as to establish allocation of the files on the storage medium; and a controlling section for controlling the recording section so as to record the files to the storage medium based on the allocation established by the arranging section and to record concurrently allocation information reflecting the allocation to a predetermined location on the storage medium.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: August 24, 2010
    Assignee: Sony Corporation
    Inventors: Yoshikazu Takashima, Masanobu Nakamura
  • Patent number: 7770795
    Abstract: An information processing apparatus for recording information on an information recording medium is provided. The information processing apparatus includes a content cryptographic processor configured to generate encrypted content by executing encryption using a unit key associated with a content management unit that serves as a unit for controlling usage of content; a unit-key-file processor configured to generate a unit key file storing the unit key, and to encrypt the unit key file or constituent data of the unit key file using an encryption key that is generated using a seed whose value is updated in accordance with change in constituent data of unit keys included in the unit key file; and a data recorder configured to record the content management unit including the encrypted content as constituent data and the unit key file on the information recording medium according to a predetermined data recording format.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: August 10, 2010
    Assignee: Sony Corporation
    Inventors: Yoshikazu Takashima, Kenjiro Ueda
  • Publication number: 20100149938
    Abstract: An information recording/reproducing apparatus is disclosed which includes: a recording section for recording files to a storage medium; an arranging section for arranging the files into groups by attribute so as to establish allocation of the files on the storage medium; and a controlling section for controlling the recording section so as to record the files to the storage medium based on the allocation established by the arranging section and to record concurrently allocation information reflecting the allocation to a predetermined location on the storage medium.
    Type: Application
    Filed: February 26, 2010
    Publication date: June 17, 2010
    Applicant: Sony Corporation
    Inventors: Yoshikazu TAKASHIMA, Masanobu NAKAMURA
  • Patent number: 7731797
    Abstract: A gas flow in a load-lock type preliminary chamber is improved.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: June 8, 2010
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Seiyo Nakashima, Tomoshi Taniyama, Kenichi Suzaki, Yoshikazu Takashima
  • Patent number: 7694327
    Abstract: An information processing apparatus and method are provided. The information processing apparatus and method provides an attribute of a component which executes a process of reading data from an information recording medium is confirmed so that severe authentication corresponding to contents can be achieved. In authentication of a component which attempts to perform a process of data read from an information recording medium, it is confirmed whether or not an attribute of the component has a data process permission component attribute set in advance. For example, it is confirmed through the attribute confirmation whether the component is a hardware component or a software component, and only when the component is a hardware component, a process of the contents is permitted.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: April 6, 2010
    Assignee: Sony Corporation
    Inventors: Yoshikazu Takashima, Satoshi Kitani, Tomoyuki Asano, Katsumi Muramatsu
  • Patent number: 7630284
    Abstract: An information-recording apparatus is disclosed wherein an area to be allocated to a new FS can be set when an area allocated to FSes has been all consumed. The information-recording apparatus includes a track division means. When a track set on a recording medium as a track allocated to FSes no longer has a free area, on the basis of a command, the track division means divides a track allocated on the recording medium in advance to files into an area to be used as a track allocated to FSes and an area to be used as a track allocated to files.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: December 8, 2009
    Assignee: Sony Corporation
    Inventors: Yoshikazu Takashima, Mitsutoshi Terada
  • Publication number: 20090269042
    Abstract: An information processing device comprising: a data processing unit configured to load a disk, which stores content that is divided into content usage control units, and to execute processes for reading the content; and a local storage unit configured to store subsequential data obtained and/or generated subsequentially, wherein the data processing unit is configured to perform processes to: select a title that is an index for reading the subsequential data from dummy titles stored in advance on the disk; set the title as a title for the subsequential data; and store the subsequential data in the local storage unit.
    Type: Application
    Filed: March 31, 2009
    Publication date: October 29, 2009
    Applicants: SONY CORPORATION, SONY CORPORATION OF AMERICA, SONY PICTURES ENTERTAINMENT INC.
    Inventors: Yoshikazu Takashima, Shinobu Hattori, Saravana Prabhu Anbananthan
  • Publication number: 20090271411
    Abstract: An information processing device including: a storage unit for storing a data file including readable content, and a control file including control information corresponding to the data file; and a data processing unit configured to use a filename conversion table, which stores filename conversion information, to convert the filename of a file stored in the storage unit into a virtual file system (VFS) name, to construct a VFS that includes storage data of a disc and storage data of the storage unit, and to perform a data reading process; wherein the data processing unit: compares the control information stored in the control file and data stored in the storage unit, and reads and/or updates the filename conversion table to reconcile the control information stored in the control file and the stored data in the storage unit.
    Type: Application
    Filed: March 31, 2009
    Publication date: October 29, 2009
    Applicants: SONY CORPORATION, SONY CORPORATION OF AMERICA, SONY PICTURES ENTERTAINMENT INC.
    Inventors: Yoshikazu Takashima, Shinobu Hattori, Saravana Prabhu Anbananthan
  • Publication number: 20090265479
    Abstract: Using multimedia data for both continuous playback and streaming playback purposes, including: encoding an elementary stream of multimedia content into a fixed length of a group of pictures; multiplexing the encoded multimedia content into a transport stream; locating data offsets of each GOP header inside the transport stream; and uploading the data offsets along with the transport stream to a server. Continuous and streaming playback of multimedia content.
    Type: Application
    Filed: April 17, 2009
    Publication date: October 22, 2009
    Applicants: SONY CORPORATION, SONY CORPORATION OF AMERICA, SONY PICTURES ENTERTAINMENT INC.
    Inventors: Yoshikazu Takashima, Saravana Prabhu Anbananthan
  • Publication number: 20090204572
    Abstract: A configuration is provided that allows secure data management to be performed on subsequently acquired data associated with content management units. When subsequently acquired data, such as information subsequently generated or downloaded by a user in association with content stored on an information recording medium, is recorded to a hard disk or the like, subsequently-acquired-data search information and access control information are set. This configuration allows a subsequently-acquired-data file to be searched for and be obtained based on the subsequently-acquired-data search information and allows access control for each subsequently-acquired-data file to be performed based on the access control information. The search information and the access control information are also set in shared directories, such as a studio shared directory.
    Type: Application
    Filed: March 1, 2006
    Publication date: August 13, 2009
    Applicant: SONY CORPORATION
    Inventors: Yoshikazu Takashima, Kenjiro Ueda, Yoshiyuki Kobayashi
  • Publication number: 20090204825
    Abstract: An information processing apparatus includes a data processor configured to obtain first content stored in a first information recording medium and second content which is stored in a second information recording medium and which is usable together with the first content, and to perform content playback processing by using the first content and the second content. The data processor calculates a hash value of a certificate stored in the first information recording medium, and verifies the calculated hash value against a hash value stored in a content certificate corresponding to the first content, and on the condition that the calculated hash value and the hash value stored in the content certificate coincide with each other, the data processor performs the content playback processing by using the first content and the second content.
    Type: Application
    Filed: February 18, 2009
    Publication date: August 13, 2009
    Applicant: Sony Corporation
    Inventor: Yoshikazu Takashima