Protection of data on media recording disks
AssigneeNDS Limited
InventorGershon Bar-On
Life of this patent
Estimating the term…
Abstract
This invention discloses a secure recording medium having at least one of audio, video and software content, comprising a plurality of media recording disks (DVD's) with a disk security chip embedded in each the DVD, each the disk chip comprising a security key, wherein at least two of the DVD's have different disk security keys. A method for protecting access to content recorded on a media recording disk (DVD) is also disclosed.
Claims29
A system for protecting access to content recorded on a media recording disk (DVD), the system comprising:
- a disk security chip on the DVD, the disk security chip managing access to the content of the DVD, the disk security chip comprising a disk key not known to a disk manufacturer;
- and
- a corresponding player security chip in a DVD player, the DVD player being operative to play the DVD, the player security chip managing use of a data stream received from the DVD, the disk security chip being in wireless communication with the player security chip,
- wherein the disk security chip is operative to send the DVD player the disk key after assuring that the DVD player is authentic.
A system for protecting access to content recorded on a media recording disk (DVD), the system comprising:
- a disk security chip disposed on the DVD, the disk security chip managing access to the content of the DVD;
- and
- a corresponding player security chip disposed in a DVD player, the DVD player being operative to play the DVD, the player security chip managing use of a data stream received from the DVD, the disk security chip being in wireless communication with the player security chip,
- wherein the disk security chip is operative to send the DVD player the disk key after assuring that the DVD player is authentic.
A system for protecting access to content recorded on a media recording disk (DVD), the system comprising:
- means for managing access to the content of the DVD, the means for managing access comprising a disk key not known to a disk manufacturer;
- and
- corresponding player security means comprised in a DVD player, the DVD player being operative to play the DVD, the player security means managing use of a data stream received from the DVD, the means for managing access being in wireless communication with the player security means;
- and
- wherein the means for managing access, after assuring that the DVD player is authentic, sends the DVD player the disk key.
A system for protecting access to content recorded on a media recording disk (DVD), comprising:
- means for managing access to the content of the DVD;
- and
- corresponding player security means comprised in a DVD player, the DVD player being operative to play the DVD, the player security chip means managing use of a data stream received from the DVD, the means for managing access being in wireless communication with the player security means,
- wherein the means for managing access, after assuring that the DVD player is authentic, sends the DVD player a disk key.
A system for protecting access to content recorded on a media recording disk, the system comprising:
- a disk security chip operatively associated with the media recording disk, the disk security chip managing access to the content of the media recording disk, the disk security chip comprising a disk key;
- and
- a corresponding player security chip associated with a player, the player being operative to play the media recording disk, the player security chip managing use of a data stream received from the media recording disk, the disk security chip being in communication with the player security chip,
- wherein the disk security chip is operative to send the player the disk key after assuring that the player is authentic.
Dependencies are inferred from the claim text.