公开(公告)号：WO2010081931A1

公开(公告)日：2010-07-22

申请号：PCT/FI2009/000014

申请日：2009-01-13

Applicant: CAPRICODE OY ,  LÖYTYNOJA, Mikko ,  BROCKMAN, Marko ,  KOUTANIEMI, Jukka ,  SEPPÄNEN, Eero

Inventor： LÖYTYNOJA, Mikko ,  BROCKMAN, Marko ,  KOUTANIEMI, Jukka ,  SEPPÄNEN, Eero

IPC: G06F21/00 ,  G11B20/00 ,  G10L19/00 ,  H04N1/32

CPC classification number: H04N1/32149 ,  G06F21/10 ,  G06F2221/0733 ,  G10L19/018 ,  H04N2201/323 ,  H04N2201/3236 ,  H04N2201/327

Abstract: The invention relates to a method and system for embedding in a digital media file user fingerprint which the user cannot detect when using the digital media file. In the method, a user-detectable watermark is first embedded in the digital media file. This watermark can be transformed in a client device to a non-detectable fingerprint of the user by utilizing digital media file-specific information issued by a digital media rights owner when the user has bought a user license. Afterwards the digital media rights owner can read the embedded user fingerprint from the digital media file if it is ille¬ gally distributed between other users.

Abstract translation: 本发明涉及一种用于嵌入数字媒体文件用户指纹的方法和系统，用户在使用数字媒体文件时无法检测。 在该方法中，用户可检测的水印首先被嵌入在数字媒体文件中。 当用户已经购买用户许可证时，通过利用数字媒体权利拥有者发布的数字媒体文件特定信息，可以将该水印在客户端设备中变换为用户的不可检测的指纹。 之后，数字媒体版权所有者可以从数字媒体文件中读取嵌入的用户指纹，如果它是在其他用户之间分布的话。

公开(公告)号：EP2387764B1

公开(公告)日：2015-11-25

申请号：EP09838178.3

申请日：2009-01-13

Applicant: Capricode Oy

Inventor： LÖYTYNOJA, Mikko ,  BROCKMAN, Marko ,  KOUTANIEMI, Jukka ,  SEPPÄNEN, Eero

IPC: G10L19/018 ,  H04N1/32 ,  G06F21/10

CPC classification number: H04N1/32149 ,  G06F21/10 ,  G06F2221/0733 ,  G10L19/018 ,  H04N2201/323 ,  H04N2201/3236 ,  H04N2201/327

公开(公告)号：EP2387764A1

公开(公告)日：2011-11-23

申请号：EP09838178.3

申请日：2009-01-13

Applicant: Capricode OY

Inventor： LÖYTYNOJA, Mikko ,  BROCKMAN, Marko ,  KOUTANIEMI, Jukka ,  SEPPÄNEN, Eero

IPC: G06F21/00 ,  G11B20/00 ,  G10L19/00 ,  H04N1/32

CPC classification number: H04N1/32149 ,  G06F21/10 ,  G06F2221/0733 ,  G10L19/018 ,  H04N2201/323 ,  H04N2201/3236 ,  H04N2201/327

Abstract: The invention relates to a method and system for embedding in a digital media file user fingerprint which the user cannot detect when using the digital media file. In the method, a user-detectable watermark is first embedded in the digital media file. This watermark can be transformed in a client device to a non-detectable fingerprint of the user by utilizing digital media file-specific information issued by a digital media rights owner when the user has bought a user license. Afterwards the digital media rights owner can read the embedded user fingerprint from the digital media file if it is ille¬ gally distributed between other users.