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    2.
    发明专利
    未知

    公开(公告)号：AT479142T

    公开(公告)日：2010-09-15

    申请号：AT04773594

    申请日：2004-09-28

    Applicant: PANASONIC CORP

    Inventor： YOKOTA KAORU ,  OHMORI MOTOJI ,  TATEBAYASHI MAKOTO ,  USUI MAKOTO ,  YAMAMICHI MASATO

    IPC: G06F7/72 ,  H03M13/00 ,  H04L9/32

    Abstract: A data converter (1) capable of reducing a size of the total implementation in a device is a processing apparatus that performs secret converting processing predetermined to input data with 64 bits, the data converter including a finite field polynomial cubing unit (10), data integrating units (11a) to (11d), (12) and (13), a first converter (14), a second converter (15), a data splitting unit (16), and a data integrating unit (17). The finite field polynomial cubing unit (10) performs cubing, on the 32 bits data, in the polynomial residue class ring with a value in the finite field GF (28) as a coefficient and respectively outputs data with 32 bits.

    3.
    发明专利
    未知

    公开(公告)号：DE60137155D1

    公开(公告)日：2009-02-05

    申请号：DE60137155

    申请日：2001-12-26

    Applicant: PANASONIC CORP

    Inventor： GUSHIMA TOYOJI ,  FURUMIYA SHIGERU ,  ISHIDA TAKASHI ,  ISHIBASHI HIROMICHI ,  DEGUCHI HIRONORI ,  NAKAMURA ATSUSHI ,  MINAMINO JUNICHI ,  USUI MAKOTO ,  NAKAJIMA TAKESHI

    IPC: G11B7/0045 ,  G11B7/00 ,  G11B7/007 ,  G11B20/10 ,  G11B20/12 ,  G11B20/14 ,  G11B20/18 ,  G11B27/30

    Abstract: A recording medium comprising a recording area, wherein: the recording area includes a first area, the first area includes a fourth area including N number of frame areas, N being equal to or greater than 2, each of the N number of frame areas includes an area in which a synchronization code sequence (SY) and at least a portion of data (DATA) are to be recorded, wherein the synchronization code sequence (VF0) which is to be recorded in the frame area located at the start of the fourth area is different by a code distance equal to or greater than 2 in NRZI representation from any synchronization code sequence (SY) which is to be recorded in any of the frame areas of the fourth area other than the frame area (F0) located at the start of the fourth area, and the synchronization code sequence (SY) which is to be recorded in the frame area located at the start of the fourth area includes a pattern which does not occur in the portion of data (DATA).

    INFORMATION RECORDING APPARATUS, INFORMATION PLAYBACK APPARATUS AND INFORMATION RECORDING MEDIUM
    4.
    发明公开
    INFORMATION RECORDING APPARATUS, INFORMATION PLAYBACK APPARATUS AND INFORMATION RECORDING MEDIUM 有权
    装置：用于信息播放信息记录设备及介质，用于记录信息

    公开(公告)号：EP2362394A4

    公开(公告)日：2014-03-12

    申请号：EP09838241

    申请日：2009-12-10

    Applicant: PANASONIC CORP

    Inventor： YAMAOKA MASARU ,  TAKAGI YUJI ,  USUI MAKOTO

    IPC: G11B20/00

    CPC classification number: G11B7/00736 ,  G11B7/263 ,  G11B20/00086 ,  G11B20/0021

    Abstract: The invention provides an information recording device, an information reproducing device, and an information recording medium capable of securely protecting copyright of main information, and preventing illegal access to the recorded main information. The information recording device (3) is provided with a medium unique information generating section (9) that generates second sub information by data-converting stamper unique information based on disc identification information that differs for each optical disc after transferring main information and first sub information from a stamper (1') having the main information and the first sub information recorded therein onto an optical disc (1), and a medium unique information recording section (10) that records the second sub information in the optical disc (1) having recorded therein in advance the main information and the first sub information in a form different from the forms of the main information and the first sub information.

    7.
    发明专利
    未知

    公开(公告)号：AT534993T

    公开(公告)日：2011-12-15

    申请号：AT02746108

    申请日：2002-07-16

    Applicant: PANASONIC CORP

    Inventor： TAKAGI YUJI ,  USUI MAKOTO ,  YABUNO HIROYUKI

    IPC: G11B20/12 ,  G11B20/18 ,  G06F11/08 ,  G11B20/10 ,  H03M13/15 ,  H03M13/27 ,  H03M13/29 ,  H03M13/35

    Abstract: A data recording method comprising the steps of encoding user data into first error correcting codes having a first correction capability, encoding control information into second error correcting codes having a second correction capability higher than the first correction capability, generating a data stream containing the first error correcting code, the second error correcting code, and synchronization signals, wherein the second error correcting codes and the synchronization signals alternatively interleave the first error correcting codes, and recording the data stream.

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