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    1.
    发明专利
    未知

    公开(公告)号：BRPI0806097A2

    公开(公告)日：2011-08-30

    申请号：BRPI0806097

    申请日：2008-09-09

    Applicant: PANASONIC CORP

    Inventor： NAKANO TOSHIHISA ,  YAMAMOTO MASAYA ,  OKADA TOMOYUKI ,  KOZUKA MASAYUKI

    IPC: G06F21/24 ,  G06F9/32 ,  G06F21/22

    Abstract: The object of the present invention is to provide a reproduction apparatus that is capable of preventing personal information of users from being transmitted to an external apparatus that is under management of a malicious person. The reproduction apparatus uses a revocation list and a valid-content list in combination in order to prevent transmission of personal information of users. It is possible to prevent transmission of personal information by revoking certificates to be revoked because of being exposed or hacked at a certain timing, by listing them in the revocation list. Meanwhile, it is possible to allow use of contents that have been manufactured before the exposure, by listing them in the valid-content list. Accordingly, it is possible to realize both the security and the user convenience at the same time.

    2.
    发明专利
    未知

    公开(公告)号：DE602004026036D1

    公开(公告)日：2010-04-29

    申请号：DE602004026036

    申请日：2004-01-30

    Applicant: PANASONIC CORP

    Inventor： IKEDA WATARU ,  OKADA TOMOYUKI ,  UESAKA YASUSHI ,  KOZUKA MASAYUKI

    IPC: G11B27/00 ,  G11B20/10 ,  G11B20/12 ,  G11B27/034 ,  G11B27/10 ,  G11B27/30 ,  G11B27/32 ,  G11B27/34 ,  G11B27/36 ,  H04N5/92

    Abstract: On a BD-ROM, there is recorded is a digital stream into which video and audio streams are multiplexed. The video stream is composed of a plurality of pictures that together represent video. The graphics stream includes a PES packet storing state control information (ICS) and PES packets containing graphics data (ODSs). The graphics data constructs an interactive display. The state control information defines the control so as to change the states of buttons presented on the interactive display according to the reproduction proceeding and user operations. The ICS is attached with a PTS showing the display timing of a picture to be synchronized with the interactive display. The ODS is attached with a PTS showing the timing for decoding the graphics data. The timing shown in the ODS is prior to the display timing.

    DEVICE CLASSIFICATION METHOD AND DEVICE CLASSIFICATION SYSTEM
    3.
    发明专利
    DEVICE CLASSIFICATION METHOD AND DEVICE CLASSIFICATION SYSTEM 未知

    公开(公告)号：MY174498A

    公开(公告)日：2020-04-23

    申请号：MYPI2014701539

    申请日：2013-09-20

    Applicant: PANASONIC CORP

    Inventor： MIYAZAKI RYOTA ,  NAKANO TOSHIHISA ,  NONAKA MASAO ,  OHMORI MOTOJI ,  KOZUKA MASAYUKI

    Abstract: A device classification method that includes: receiving a first action performed on a first device in the device group, for classifying the first device as belonging to the coordinated operation group; setting, when the first action is received, each of one or more devices in the device group other than the first device to a classifiable state in which the device is classifiable as belonging to the coordinated operation group; receiving a second action performed on a second device in the device group that is set to the classifiable state, for classifying the second device as belonging to the coordinated operation group; and classifying, when the second action is received, the first device and the second device as belonging to the coordinated operation group.

    Picture coding method and picture decoding method
    9.
    发明专利
    Picture coding method and picture decoding method 未知

    公开(公告)号：AU2004214795A9

    公开(公告)日：2009-05-28

    申请号：AU2004214795

    申请日：2004-02-18

    Applicant: PANASONIC CORP

    Inventor： KOZUKA MASAYUKI ,  LU JIUHUAI ,  KADONO SHINYA ,  KASHIWAGI YOSHIICHIRO

    IPC: H03M7/30 ,  H04N20060101 ,  H04N1/00 ,  H04N7/12 ,  H04N7/24 ,  H04N19/00

    Abstract: The picture coding method of the present invention is a picture coding method for coding a picture on a block-by-block basis, comprising: a selection step of selecting one of at least two sizes as a size of a block on which orthogonal transformation should be performed; a transformation step of performing orthogonal transformation on a block having the selected size; a coding step of coding data of said block obtained in the transformation step; and a generation step of generating a coded stream that includes the coded data of the block and size information concerning the size selected in the selection step, wherein the size information indicates whether or not the size is a fixed block size within a predetermined section in the coded stream, and the predetermined section is one of a sequence, a group of pictures, a picture, a slice, and a macroblock.

    10.
    发明专利
    未知

    公开(公告)号：DE69940281D1

    公开(公告)日：2009-02-26

    申请号：DE69940281

    申请日：1999-07-21

    Applicant: PANASONIC CORP

    Inventor： TAGAWA KENJI ,  MINAMI MASATAKA ,  KOZUKA MASAYUKI

    IPC: G11B20/00

    Abstract: A digital data recording apparatus for recording digital data on a recording medium, comprises: communication means (100) for receiving encrypted digital data via a digital network; decryption means (105) for decrypting the encrypted digital data that has been received by the communication means; encryption means (110) including a plurality of encryption units (111,112,113) that re-encrypt digital data that has been decrypted by the decryption means in encryption systems having different security levels; recording means (115) for recording digital data that has been re-encrypted by the encryption means on the recording medium; designation reception means (117) for receiving, from a user, an instruction regarding designation of one of the plurality of encryption units, the designation encryption unit being for re-encrypting the digital data that has been decrypted by the decryption means; and a controller (109) for controlling the decryption means, the encryption means and the designation reception means, characterised in that the controller has the designated encryption unit re-encrypt the digital data that has been decrypted by the decryption means.

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