公开(公告)号：CA2338414C

公开(公告)日：2006-05-09

申请号：CA2338414

申请日：1999-08-12

Applicant: IBM

Inventor： DOWNS EDGAR ,  GRUSE GEORGE GREGORY ,  DORAK JOHN JR ,  MEDINA CESAR ,  LOTSPIECH JEFFREY ,  HURTADO MARCO ,  LEHMAN CHRISTOPHER ,  MILSTED KENNETH

IPC: G06F21/00 ,  G06F12/14 ,  G06F21/10 ,  G06Q30/00 ,  H04L9/14 ,  H04L9/28 ,  H04L9/30 ,  H04L12/16

Abstract: A system for tracking usage of digital content on user devices. Electronic stores coupled to a network sell licenses to play digital content data to users. Content players, which receive from the network the licensed content data, are used to play the licensed content data. Additionally, a logging site that is coupled to the network tracks the playi ng of the content data. In particular, the logging site receives play information from the network, and the play information includes the number of times that the content data has been played by the associated content player. Also provided is a method for tracking usage of digital content on user devices. According to the method, a license to play digital content data is sold to a user, and the licensed content data is transmitted to a content player for the user. Further, information is transmitted to a logging site whenever the content data is played by the content player or copied from the content player to an external medium so that usage of the licensed content data can be tracked .

公开(公告)号：CA2467998C

公开(公告)日：2006-04-25

申请号：CA2467998

申请日：1999-08-12

Applicant: IBM

Inventor： GRUSE GEORGE GREGORY ,  HURTADO MARCO ,  DORAK JOHN ,  DOWNS EDGAR ,  LEHMAN CHRISTOPHER ,  LOTSPIECH JEFFREY ,  MEDINA CESAR ,  MILSTED KENNETH

IPC: G06F21/00 ,  H04L9/28 ,  G06F12/14 ,  G06F21/10 ,  G06Q30/00 ,  H04L9/14 ,  H04L9/30 ,  H04L12/16

Abstract: A system for tracking usage of digital content on user devices. Electronic stores coupled to a network sell licenses to play digital content data to users. Content players , which receive from the network the licensed content data, are used to play the licensed content dat a. Additionally, a logging site that is coupled to the network tracks the playing of the content data. In particular, the logging site receives play information from the network, and the play information includes the number of times that the content data has been played by the associated content player . Also provided is a method for tracking usage of digital content on user devices. According to t he method, a license to play digital content data is sold to a user, and the licensed content data i s transmitted to a content player for the user. Further, information is transmitted to a logging site whenever the content data is played by the content player or copied from the content player to an external medium so that usage of the licensed content data can be tracked.

公开(公告)号：CA2467998A1

公开(公告)日：2000-02-24

申请号：CA2467998

申请日：1999-08-12

Applicant: IBM

Inventor： LOTSPIECH JEFFREY ,  HURTADO MARCO ,  LEHMAN CHRISTOPHER ,  GRUSE GEORGE GREGORY ,  DOWNS EDGAR ,  DORAK JOHN ,  MILSTED KENNETH ,  MEDINA CESAR

IPC: G06F21/00 ,  G06F12/14 ,  G06F21/10 ,  G06Q30/00 ,  H04L9/14 ,  H04L9/28 ,  H04L9/30 ,  H04L12/16 ,  G06F17/60

Abstract: A system for tracking usage of digital content on user devices. Electronic stores coupled to a network sell licenses to play digital content data to users. Content players , which receive from the network the licensed content data, are used to play the licensed content dat a. Additionally, a logging site that is coupled to the network tracks the playing of the content data. In particular, the logging site receives play information from the network, and the play information includes the number of times that the content data has been played by the associated content player . Also provided is a method for tracking usage of digital content on user devices. According to t he method, a license to play digital content data is sold to a user, and the licensed content data i s transmitted to a content player for the user. Further, information is transmitted to a logging site whenever the content data is played by the content player or copied from the content player to an external medium so that usage of the licensed content data can be tracked.

公开(公告)号：DE60204227D1

公开(公告)日：2005-06-23

申请号：DE60204227

申请日：2002-08-19

Applicant: IBM

Inventor： LISANKE MICHAEL ,  MILSTED KENNETH ,  NUSSER STEFAN C C IBM U K LTD ,  TANTLINGER BRUCE ,  WILHELM JR

IPC: G06F21/24 ,  G06F1/00 ,  G06F21/00 ,  G06T1/00 ,  G11B20/00 ,  G11B20/10 ,  H04L29/06 ,  H04L29/08

Abstract: A method, system and computer readable medium for the blocking of recording digital content at an end user multimedia end-user-system during the rendering of encrypted digital multimedia files. Before the process of rendering of encrypted digital multimedia can be started all rendered media stream during playback are opened to ensure that this multimedia content is not recorded. This blocks the usage of the devices and/or ports that can be used to store un-encrypted content that has been decrypted for the purposes of playing or rendering. The method also includes an exception, which allows recording with permission from the present invention.

公开(公告)号：AT295989T

公开(公告)日：2005-06-15

申请号：AT02755205

申请日：2002-08-19

Applicant: IBM

Inventor： LISANKE MICHAEL ,  MILSTED KENNETH ,  NUSSER STEFAN ,  TANTLINGER BRUCE ,  WILHELM GEORGE JR

IPC: G06F21/24 ,  G06F1/00 ,  G06F21/00 ,  G06T1/00 ,  G11B20/00 ,  G11B20/10 ,  H04L29/06 ,  H04L29/08

Abstract: A method, system and computer readable medium for the blocking of recording digital content at an end user multimedia end-user-system during the rendering of encrypted digital multimedia files. Before the process of rendering of encrypted digital multimedia can be started all rendered media stream during playback are opened to ensure that this multimedia content is not recorded. This blocks the usage of the devices and/or ports that can be used to store un-encrypted content that has been decrypted for the purposes of playing or rendering. The method also includes an exception, which allows recording with permission from the present invention.

公开(公告)号：CA2467974A1

公开(公告)日：2000-02-24

申请号：CA2467974

申请日：1999-08-12

Applicant: IBM

Inventor： MILSTED KENNETH ,  LEHAMN CHRISTOPHER ,  LOTSPIECH JEFFREY ,  DOWNS EDGAR ,  GRUSE GEORGE GREGORY ,  HURTADO MARCO ,  MEDINA CESAR ,  DORAK JOHN

IPC: G06F21/00 ,  G06F12/14 ,  G06F21/10 ,  G06Q30/00 ,  H04L9/14 ,  H04L9/28 ,  H04L9/30 ,  H04L12/16 ,  G06F17/60

Abstract: A system for tracking usage of digital content on user devices. Electronic stores coupled to a network sell licenses to play digital content data to users. Content players , which receive from the network the licensed content data, are used to play the licensed content dat a. Additionally, a logging site that is coupled to the network tracks the playing of the content data. In particular, the logging site receives play information from the network, and the play information includes the number of times that the content data has been played by the associated content player . Also provided is a method for tracking usage of digital content on user devices. According to t he method, a license to play digital content data is sold to a user, and the licensed content data i s transmitted to a content player for the user. Further, information is transmitted to a logging site whenever the content data is played by the content player or copied from the content player to an external medium so that usage of the licensed content data can be tracked.

公开(公告)号：CA2338414A1

公开(公告)日：2000-02-24

申请号：CA2338414

申请日：1999-08-12

Applicant: IBM

Inventor： DORAK JOHN JR ,  DOWNS EDGAR ,  GRUSE GEORGE GREGORY ,  MILSTED KENNETH ,  LEHMAN CHRISTOPHER ,  LOTSPIECH JEFFREY ,  MEDINA CESAR ,  HURTADO MARCO

IPC: G06F21/00 ,  G06F12/14 ,  G06F21/10 ,  G06Q30/00 ,  H04L9/14 ,  H04L9/28 ,  H04L9/30 ,  H04L12/16 ,  G06F1/00 ,  G06F17/60 ,  H04L29/06

Abstract: A system for tracking usage of digital content on user devices. Electronic stores coupled to a network sell licenses to play digital content data to users. A system for securely providing data, the system being capable of receiving both data encrypted with a first encryption key and a encrypted first encryption key.