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    METHOD AND SYSTEM FOR MANAGING ACCESS TO DATA THROUGH DATA TRANSFORMATION
    2.
    发明专利
    METHOD AND SYSTEM FOR MANAGING ACCESS TO DATA THROUGH DATA TRANSFORMATION 未知

    公开(公告)号：CA2265647C

    公开(公告)日：2003-09-23

    申请号：CA2265647

    申请日：1997-08-12

    Applicant: IBM

    Inventor： MIWA KUNIHIKO ,  KOBAYASHI HIROYA ,  MORIMOTO NORISHIGE

    IPC: G06T1/00 ,  G11B20/00 ,  H04N5/913 ,  H04N9/804 ,  G11B20/10 ,  G06F12/14 ,  G09C5/00 ,  H04N5/91

    Abstract: In providing a system that can manage access to data to effectively prevent illegal access to the data or the like, there is provided a system for embedding access management information that prepares management information for managing access to the data, and embeds the management information in the data through data transformation without changing amount of data. In managing access to data, there is provided a method that extracts management information embedded in the data through data deformation without changing amount of data, and manages access to the data according to the extracted management information. There is also provided a method for changing management of access to the data according to the type of medium in which the data is stored (RAM or ROM). The management information further contains information for controlling recording of the data, reception of the data, playback of the data, interference of output of the data, duplication history of the data, or modification of the management information. The access management method can prevent illegal duplication of data or the like, and can effectively protect a work.

    METHOD AND SYSTEM FOR MANAGING ACCESS TO DATA
    3.
    发明专利
    METHOD AND SYSTEM FOR MANAGING ACCESS TO DATA 未知

    公开(公告)号：MY127838A

    公开(公告)日：2006-12-29

    申请号：MYPI9704638

    申请日：1997-10-03

    Applicant: IBM

    Inventor： MIWA KUNIHIKO ,  KOBAYASHI HIROYA ,  MORIMOTO NORISHIGE

    IPC: G11B7/00 ,  G06T1/00 ,  G11B20/00 ,  H04N5/913 ,  H04N9/804

    Abstract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

    METHOD AND SYSTEM FOR MANAGING ACCESS TO DATA
    4.
    发明专利
    METHOD AND SYSTEM FOR MANAGING ACCESS TO DATA 未知

    公开(公告)号：HK1021588A1

    公开(公告)日：2000-06-16

    申请号：HK00100523

    申请日：2000-01-28

    Applicant: IBM

    Inventor： MIWA KUNIHIKO ,  KOBAYASHI HIROYA ,  MORIMOTO NORISHIGE

    IPC: G06T1/00 ,  G11B20/00 ,  H04N5/913 ,  H04N9/804 ,  G11B ,  G06F ,  H04N ,  G09C

    Abstract: In providing a system that can manage access to data to effectively prevent illegal access to the data or the like, there is provided a system for embedding access management information that prepares management information for managing access to the data, and embeds the management information in the data through data transformation without changing amount of data. In managing access to data, there is provided a method that extracts management information embedded in the data through data deformation without changing amount of data, and manages access to the data according to the extracted management information. There is also provided a method for changing management of access to the data according to the type of medium in which the data is stored (RAM or ROM). The management information further contains information for controlling recording of the data, reception of the data, playback of the data, interference of output of the data, duplication history of the data, or modification of the management information. The access management method can prevent illegal duplication of data or the like, and can effectively protect a work.

    DATA CONTROL SYSTEM
    6.
    发明专利
    DATA CONTROL SYSTEM 失效

    公开(公告)号：JPH11164132A

    公开(公告)日：1999-06-18

    申请号：JP14370598

    申请日：1998-05-26

    Applicant: IBM

    Inventor： MIWA KUNIHIKO ,  MORIMOTO NORISHIGE ,  SHIMIZU SHUICHI

    IPC: H04N5/91 ,  G06F12/14 ,  G06F21/10 ,  G06F21/16 ,  G06F21/62 ,  G06T1/00 ,  G09C5/00 ,  G11B20/00 ,  G11B20/10 ,  H04L9/36 ,  H04N1/387 ,  H04N7/08 ,  H04N7/081 ,  H04N7/167 ,  H04N7/24 ,  H04N19/00 ,  H04N21/2347 ,  H04N21/266 ,  H04N21/8355

    Abstract: PROBLEM TO BE SOLVED: To obtain a low cost system which can safely perform data control through the use of electronic watermark technology by controlling data according to a control rule, having a token or control flag defined in advance. SOLUTION: In a step 800, it is checked from distributed data whether or not there is a control flag(CF) embedded by using electronic watermark technology. When no CF is detected, unrestricted control, e.g., duplication, video- recording, reproduction, etc., are performed. When a CF is detected, it is determined in a next step 820 whether or not there is an added token. When the result of the step 820 is NO, data control is inhibited. Namely, no duplication, video-recording, reproduction, etc., is done and the process is ended as it is. When the result of the step 820 is YES, the data control (duplication, video- recording, reproduction, etc.), by the control rule having a token or CF defined in advance is performed.

    DATA ACCESS MANGAGING SYSTEM
    9.
    发明专利
    DATA ACCESS MANGAGING SYSTEM 未知

    公开(公告)号：PL332798A1

    公开(公告)日：1999-10-11

    申请号：PL33279897

    申请日：1997-08-12

    Applicant: IBM

    Inventor： MIWA KUNIHIKO ,  KOBAYASHI HIROYA ,  MORIMOTO NORISHIGE

    IPC: G06T1/00 ,  G11B20/00 ,  H04N5/913 ,  H04N9/804 ,  G11B20/10 ,  G06F12/14 ,  H04N5/91 ,  G09C5/00

    Abstract: In providing a system that can manage access to data to effectively prevent illegal access to the data or the like, there is provided a system for embedding access management information that prepares management information for managing access to the data, and embeds the management information in the data through data transformation without changing amount of data. In managing access to data, there is provided a method that extracts management information embedded in the data through data deformation without changing amount of data, and manages access to the data according to the extracted management information. There is also provided a method for changing management of access to the data according to the type of medium in which the data is stored (RAM or ROM). The management information further contains information for controlling recording of the data, reception of the data, playback of the data, interference of output of the data, duplication history of the data, or modification of the management information. The access management method can prevent illegal duplication of data or the like, and can effectively protect a work.

    METHOD AND SYSTEM FOR MANAGING ACCESS TO DATA THROUGH DATA TRANSFORMATION
    10.
    发明专利
    METHOD AND SYSTEM FOR MANAGING ACCESS TO DATA THROUGH DATA TRANSFORMATION 未知

    公开(公告)号：CA2265647A1

    公开(公告)日：1998-04-23

    申请号：CA2265647

    申请日：1997-08-12

    Applicant: IBM

    Inventor： MORIMOTO NORISHIGE ,  MIWA KUNIHIKO ,  KOBAYASHI HIROYA

    IPC: G06T1/00 ,  G11B20/00 ,  H04N5/913 ,  H04N9/804 ,  G11B20/10 ,  G06F12/14 ,  G09C5/00 ,  H04N5/91

    Abstract: A system for managing access to data and effectively preventing illegal access to data is provided with an access management information burying system in which management information for managing access to the data is prepared and the management information is buried in the data by deforming the data without changing the quantity of data. A method for managing access to data in which, the management information buried in the data by deforming the data without changing the quantity of the data is extracted and access to the data is managed in accordance with the extracted information. A method for changing the management of access to data in accordance with the kind of the medium (RAM or ROM) where the data are stored. The management information including the information for controlling the recording, receiving, reproducing, output hindering, copying history of the data, or changing of the management information. By the access management method, the illegal copying, etc., of the data can be prevented and a literary work can be protected effectively.

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