Enhanced security of optical article
First Claim
1. An optical article for playback in a player comprising:
- a first file encoded on the optical article comprising data structure information, wherein the data structure information comprises information required for the player to access and play video content in each video title stored on the optical article;
a second file encoded on the optical article comprising a backup of the first file;
wherein at least one of the first file or the second file must be fully readable for the player to play the video content on the optical article; and
a mark disposed on at least a portion of the optical article where the first file is encoded and disposed on at least a portion of the optical article where the second file is encoded;
wherein the mark comprises an optical state change material that undergoes a change in its optical state when exposed to an activation signal selected from one or more of a laser, thermal energy, infrared rays, X-rays, gamma rays, microwaves, visible light, ultraviolet light, ultrasound waves, radio frequency waves, electrical energy, chemical energy, magnetic energy, and mechanical energy;
wherein the optical article is transformed from a pre-activated state, where the player is unable to read either of the first or second file, to an activated state, where the player is able to read either of the first or second file, when an authorized activation method is used to activate the mark; and
wherein the optical article is transformed from the pre-activated state to an incorrectly activated state, where the player is unable to read either of the first or second file, when an unauthorized activation method is used to activate the mark.
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Accused Products
Abstract
An optical article comprising a first file encoded on the optical article comprising data structure information; a second file encoded on the optical article comprising a backup of the first file; wherein at least one of the first file or the second file must be fully readable for the player to read the data on the optical article; and a mark disposed on at least a portion of the optical article where the first file is encoded and at least a portion of the optical article where the second file is encoded; wherein the mark comprises an optical state change material; wherein the optical state change material undergoes a change in its optical state when exposed to an activation signal selected from one or more of a laser, thermal energy, infrared rays, X-rays, gamma rays, microwaves, visible light, ultraviolet light, ultrasound waves, radio frequency waves, electrical energy, chemical energy, magnetic energy, and mechanical energy; wherein the optical article is transformed from a pre-activated state to an activated state when an authorized activation method is used; and wherein the optical article is transformed from a pre-activated state to an incorrectly activated state when an unauthorized activation method is used.
178 Citations
36 Claims
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1. An optical article for playback in a player comprising:
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a first file encoded on the optical article comprising data structure information, wherein the data structure information comprises information required for the player to access and play video content in each video title stored on the optical article; a second file encoded on the optical article comprising a backup of the first file; wherein at least one of the first file or the second file must be fully readable for the player to play the video content on the optical article; and a mark disposed on at least a portion of the optical article where the first file is encoded and disposed on at least a portion of the optical article where the second file is encoded; wherein the mark comprises an optical state change material that undergoes a change in its optical state when exposed to an activation signal selected from one or more of a laser, thermal energy, infrared rays, X-rays, gamma rays, microwaves, visible light, ultraviolet light, ultrasound waves, radio frequency waves, electrical energy, chemical energy, magnetic energy, and mechanical energy; wherein the optical article is transformed from a pre-activated state, where the player is unable to read either of the first or second file, to an activated state, where the player is able to read either of the first or second file, when an authorized activation method is used to activate the mark; and wherein the optical article is transformed from the pre-activated state to an incorrectly activated state, where the player is unable to read either of the first or second file, when an unauthorized activation method is used to activate the mark. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. An optical article for playback in a player comprising:
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a mark disposed on the optical article; a plurality of control logics encoded within respective sectors of the optical article, wherein each control logic of the plurality of control logics is configured to change a value of a register from a default value to a non-default value via a forced activation method; wherein the mark comprises a plurality of optically detectable spots comprising an optical state change material;
wherein the optical state change material undergoes a change in its optical state when exposed to an activation signal selected from one or more of a laser, thermal energy, infrared rays, X-rays, gamma rays, microwaves, visible light, ultraviolet light, ultrasound waves, radio frequency waves, electrical energy, chemical energy, magnetic energy, and mechanical energy;wherein the optical article is transformed from a pre-activated state, in which movie content stored on the optical article is unable to be played by the player, to an activated state, in which movie content is able to be played by the player, when an authorized activation method is used to activate the mark; wherein the optical article is transformed from the pre-activated state to an incorrectly activated state, in which the movie content is unable to be played by the player, when an unauthorized activation method is used to activate the mark; wherein the mark is in a pre-determined relationship with the respective sectors such that, in the pre-activated state, the plurality of optically detectable spots enable a first combination of the plurality of control logics to be read and executed by the player, in the activated state, the plurality of optically detectable spots enable a second combination of the plurality of control logics to be read and executed by the player, and in the incorrectly activated state, the plurality of optically detectable spots enable a third combination of the plurality of control logics to be read and executed by the player; wherein the first combination of the plurality of control logics, when executed by the player, cause the register values to prevent the movie content from being playable by the player, the second combination of the plurality of control logics, when executed by the player, cause the register values to enable the movie content to be played by the player, and the third combination of the plurality of control logics, when executed by the player, cause the register values to prevent the movie content from being playable by the player. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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35. An optical article for playback in a player comprising:
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a mark disposed on the optical article; a first control logic; a logical branch point associated with the first control logic; wherein the mark comprises an optical state change material;
wherein the optical state change material undergoes a change in its optical state when exposed to an activation signal selected from one or more of a laser, thermal energy, infrared rays, X-rays, gamma rays, microwaves, visible light, ultraviolet light, ultrasound waves, radio frequency waves, electrical energy, chemical energy, magnetic energy, and mechanical energy;wherein the optical article is transformed from a pre-activated state, in which movie content stored on the optical article is unable to be played by the player, to an activated state, in which the movie content is able to be played by the player, when an authorized activation method is used to activate the mark; wherein the optical article is transformed from the pre-activated state to an incorrectly activated state, in which the movie content is unable to be played by the player, when an unauthorized activation method is used to activate the mark; wherein the mark is in a pre-determined relationship with a sector upon which the first control logic is programmed; wherein the first control logic is executed only when the associated mark is in a pre-determined state; and wherein the logical branching point has a pre-determined association with the mark such that if the mark is incorrectly activated the player is directed to a terminal point in the navigation of the optical article, wherein the terminal point comprises a second control logic that, when executed by the player, disables navigation of the optical article and directs the player to play a still or a video loop indefinitely.
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36. An optical article for playback in a player comprising:
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a plurality of optically-detectable marks disposed on the optical article; at least one first control logic; wherein each optically detectable mark is associated with a particular first control logic; logical branch points associated with the at least one first control logic; wherein the mark comprises an optical state change material;
wherein the optical state change material undergoes a change in its optical state when exposed to an activation signal selected from one or more of a laser, thermal energy, infrared rays, X-rays, gamma rays, microwaves, visible light, ultraviolet light, ultrasound waves, radio frequency waves, electrical energy, chemical energy, magnetic energy, and mechanical energy;wherein the optical article is transformed from a pre-activated state, in which movie content stored on the optical article is unable to be played by the player, to an activated state, in which the movie content is able to be played by the player, when an authorized activation method is used; wherein the optical article is transformed from the pre-activated state to an incorrectly activated state, in which the movie content is unable to be played by the player, when an unauthorized activation method is used; wherein each mark is in a pre-determined relationship with a sector upon which the associated first control logic is programmed; wherein each first control logic is executed only when the associated mark is in a pre-determined state; and wherein the logical branching points having the pre-determined association with the marks are such that if the wrong subset of marks are activated the player is directed to a terminal point in the navigation of the optical article, wherein the terminal point comprises a second control logic that, when executed by the player, disables navigation of the optical article and directs the player to play a still or a video loop indefinitely.
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Specification