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    Optical disk
    2.
    发明专利
    Optical disk 审中-公开
    光盘

    公开(公告)号：JP2007115372A

    公开(公告)日：2007-05-10

    申请号：JP2005308280

    申请日：2005-10-24

    Applicant: Toshiba Corp ,  株式会社東芝

    Inventor： KASAHARA AKIHIRO ,  MIURA AKIKAGE ,  KASA HIROSHI

    IPC: G11B20/10 ,  G11B7/007 ,  G11B7/24

    Abstract: PROBLEM TO BE SOLVED: To provide an optical disk which eliminates a user's economical burden and the problem of environmental deterioration while taking advantage of an terminable disk. SOLUTION: A protective coat 24 is formed all over the optical disk 10 except a key data area 13. The protective coat 24 has a high light transmittance, and even if kept in an atmosphere including oxygen or moisture for a long term, it is not denaturalized. A denaturalized protective coat 25 is formed only above the key data area 13. Although the denaturalized protective coat 25 has a high light transmittance during a predetermined term after a vacuum packaging of disk is opened, the light transmittance reduces due to denaturation resulting from oxidization etc. after the predetermined term passes. After the predetermined time has passed, the light transmittance of the denaturalized protective coat 24 decreases and reading of enciphered title key data Kt recorded on the key data area 13 becomes impossible. COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种消除用户的经济负担的光盘以及利用可终止的盘的环境恶化的问题。 除了键数据区域13之外，在整个光盘10上形成保护涂层24.防护涂层24具有高透光率，并且即使长期保持在包含氧气或水分的气氛中， 它不是变性的。 在键数据区域13的上方仅形成变性保护层25.虽然变形的保护层25在盘的真空包装打开后的预定期间具有高的透光率，但由于氧化等而导致的变性，光线透射率降低 在预定期限过后。 在经过预定时间之后，变质保护涂层24的透光率降低，记录在密钥数据区13上的加密标题密钥数据Kt变得不可能。 版权所有（C）2007，JPO＆INPIT

    Contents utilizing method and program
    3.
    发明专利
    Contents utilizing method and program 审中-公开
    目录利用方法和程序

    公开(公告)号：JP2006041737A

    公开(公告)日：2006-02-09

    申请号：JP2004216326

    申请日：2004-07-23

    Applicant: Toshiba Corp ,  株式会社東芝

    Inventor： KASAHARA AKIHIRO ,  MIURA AKIKAGE ,  KASA HIROSHI ,  ISHIDA SHIGERU ,  NAKANO KAZUNORI

    IPC: H04L9/08 ,  G06F21/00 ,  G06F21/24 ,  G06K17/00 ,  H04L9/10

    CPC classification number: G06F21/10 ,  G06F2221/0797 ,  G06F2221/2109

    Abstract: PROBLEM TO BE SOLVED: To provide a contents utilizing method and program capable of utilizing even contents software needing start software on the basis of the encryption double key system. SOLUTION: A user terminal 40 installed with the start software is used, and the user terminal 40 executes the start software externally designated to decrypt encrypted contents Enc (Kc1, C1) by using an SD card 10 and to obtain contents software C1. Then the user terminal 40 can execute the contents software C1. Even when the contents software C1 requires the start software, the contents software C1 can be utilized on the basis of the "encryption double key system". COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题：提供一种能够在加密双重密钥系统的基础上利用需要开始软件的内容软件的内容利用方法和程序。

    解决方案：使用安装有启动软件的用户终端40，并且用户终端40通过使用SD卡10执行外部指定的用于解密加密内容Enc（Kc1，C1）的开始软件，并获得内容软件C1 。 然后，用户终端40可以执行内容软件C1。 即使当内容软件C1需要启动软件时，也可以在“加密双重键系统”的基础上使用内容软件C1。 版权所有（C）2006，JPO＆NCIPI

    Encryption recording apparatus, reproducing apparatus and program
    6.
    发明专利
    Encryption recording apparatus, reproducing apparatus and program 有权

    公开(公告)号：JP2004194271A

    公开(公告)日：2004-07-08

    申请号：JP2003131612

    申请日：2003-05-09

    Applicant: Toshiba Corp ,  株式会社東芝

    Inventor： MATSUKAWA SHINICHI ,  KASAHARA AKIHIRO ,  KASA HIROSHI ,  KATO HIROSHI

    IPC: G06F12/14 ,  G06F12/00 ,  G06F21/00 ,  G06F21/24 ,  G06K19/07 ,  G06K19/10 ,  H04L9/08 ,  H04L9/14 ,  H04L9/32

    CPC classification number: G06F12/1441 ,  G06F21/10

    Abstract: PROBLEM TO BE SOLVED: To provide an encryption recording apparatus, reproducing apparatus and program capable of eliminating the possibility of the capacity deficiency of a protected region due to increase in the amount of information and the number of content keys. SOLUTION: The encryption recording apparatus is provided with: a first encryption means for encrypting contents key information, that is, contents key information corresponding to encrypted contents inputted via an arbitrary distribution route and recorded on a contents recording medium, and recording the resultant information on the recording medium when the contents key information is inputted, encrypting fixed information inputted in advance and writing the resultant encrypted fixed information in the protected region of the recording medium; a decryption means for decrypting the encrypted fixed information within the protected region to obtain the fixed information; and a second encryption means for encrypting the contents key information on the basis of the fixed information obtained by the decryption means or newly inputted fixed information and writing the resultant encrypted contents key information in any data region except for the protected region on the recording medium. COPYRIGHT: (C)2004,JPO&NCIPI

    License moving device and program
    7.
    发明专利
    License moving device and program 有权

    公开(公告)号：JP2004185152A

    公开(公告)日：2004-07-02

    申请号：JP2002349200

    申请日：2002-11-29

    Applicant: Toshiba Corp ,  株式会社東芝

    Inventor： MATSUKAWA SHINICHI ,  KASAHARA AKIHIRO ,  KASA HIROSHI ,  KATO HIROSHI ,  NAKANO KAZUNORI ,  MIURA AKIKAGE

    IPC: G06F21/22 ,  G06F21/00 ,  G06F1/00

    CPC classification number: G06F21/10 ,  G06F2221/0777 ,  G06F2221/0786

    Abstract: PROBLEM TO BE SOLVED: To improve the convenience by enabling the movement of license information from a prescribed recording medium to another recording medium. SOLUTION: A personal computer PC 10 transmits encrypted user information and encrypted license information in a secure recording medium MA to a server 20. The server 20 decodes the encrypted license information on the basis of these transmission contents to obtain license information. Thereafter, the server 20 erases the encrypted license information in the secure storage medium MA through the personal computer 10. Further, the server 20 decodes encrypted user information, on receipt of encrypted user information in a secure storage medium MB to obtain user information. Thereafter, the server 20 encrypts the licensee information on the basis of a user ID in the user information, and writes the resulting encrypted license information to the secure recording medium MB through the personal computer 10. COPYRIGHT: (C)2004,JPO&NCIPI

    IMAGE RECORDING DEVICE AND IMAGE REPRODUCING DEVICE
    8.
    发明专利
    IMAGE RECORDING DEVICE AND IMAGE REPRODUCING DEVICE 失效

    公开(公告)号：JPH11261965A

    公开(公告)日：1999-09-24

    申请号：JP6109898

    申请日：1998-03-12

    Applicant: TOSHIBA CORP

    Inventor： NAGAI TAKESHI ,  KASA HIROSHI ,  KAMIBAYASHI TATSU ,  AKIYAMA KOICHIRO

    IPC: G09C1/00 ,  H04N5/92

    Abstract: PROBLEM TO BE SOLVED: To warrant that recorded image data are not falsificated by editing after the recording, to allow the data to be freely browsed in the case of reproduction and to easily find out a falsification trace of the data. SOLUTION: A clock 101 of the image recording device outputs time information such as year/month/day/hour/minute/second, a composer 102 composites image information denoting the time information on part of an image of an input image signal, an encryption device 103 encrypts the composite image signal and records the result as a recording image of a TV broadcast program or the like. When the recorded image is reproduced, since the time information is composited on the reproduced image, time continuity is easily confirmed and it is warranted that the recorded image data are not falsificated by editing or the like after recording of the data.

    IMAGE DISPLAY DEVICE
    9.
    发明专利
    IMAGE DISPLAY DEVICE 失效

    公开(公告)号：JPH04301672A

    公开(公告)日：1992-10-26

    申请号：JP6709991

    申请日：1991-03-29

    Applicant: TOSHIBA CORP

    Inventor： HARADA NOZOMI ,  SUZUKI KOJI ,  KASA HIROSHI

    IPC: G02F1/13 ,  G09F9/35

    Abstract: PURPOSE:To minimize deterioration in picture quality due to a defective picture element by masking the picture element which has an image defect and compensating the masked picture element by the information on its peripheral picture elements. CONSTITUTION:This image display device formed by arraying plural picture elements 12 in a picture element area in two dimensions is provided with a transparent material layer 16 of an organic material on a glass substrate 15. On the picture element (picture element electrode) 1223 having the image defect (white flaw), a light shield material layer 18 containing, e.g. carbon is formed on the transparent material layer 16. Further, the flanks of a recessed part 17 is tapered as shown in a figure, and formed overlapping with the areas of the peripheral picture elements adjoining to the defective picture element 1223. The defective picture element is therefore masked with the light shielding material layer 18 and compensated by the information on its peripheral picture elements through the tapered flanks.

    PICTURE ENCODING DEVICE
    10.
    发明专利
    PICTURE ENCODING DEVICE 失效

    公开(公告)号：JPH02121528A

    公开(公告)日：1990-05-09

    申请号：JP27520988

    申请日：1988-10-31

    Applicant: TOSHIBA CORP

    Inventor： KASA HIROSHI

    IPC: H03M7/38 ,  G06T9/00

    Abstract: PURPOSE:To transform a forecasting part and a quantizing part into a pipeline by quantizing a forecasted error signal after forecasting an input picture signal in a feedforward way. CONSTITUTION:A forecasting part 1 consists of a forecasting circuit 13 which forecasts the digitized input picture signal inputted via an input terminal 11 in a feedforward way and a subtractor 12 which obtains an forecasted error signal. While a quantizing part 3 consists of a subtractor 14 which obtains an error signal with subtraction of a delayed forecasted error signal and a period quantized signal, a quantizer 15 which quantizes the error signal, a computing element 16 which obtains a quantized error signal, and a forecasting circuit 17 which feeds the quantized error signal feedback to the subtractor 14 and produces a feedback quantized signal. The quantized error signal can be obtained directly from the error signal outputted from the subtractor 14 and therefore the arithmetic elements put into a feedback loop of the part 3 includes the subtractor 14, a POM 31, and the circuit 17. Then the working speed is increased.

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