Rotation responsive disk activation and deactivation mechanisms

• US 20070002708A1
• Filed: 06/20/2006
• Published: 01/04/2007
• Est. Priority Date: 05/09/2005
• Status: Active Grant

• Current Assignee: The Invention Science Fund I, L.L.C. (Intellectual Ventures LLC)
• Original Assignee: Searete LLC (Intellectual Ventures LLC)
• Inventors: Ferren, Bran, Jung, Edward, Tegreene, Clarence
• Granted Patent: US 7,512,959 B2
• Time in Patent Office: Days
• US Class Current: 369/52.100
• CPC Class Codes: G11B 20/00086 Circuits for prevention of unauthorised reproduction or copying, e.g. piracy indicating unauthorised use of record carriers in general G11B23/28; scrambling for television signal recording H04N5/913; network architectures or network protocols for network security H04L63/00; cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
• CPC Class Codes: G11B 20/0021 involving encryption or decryption of contents recorded on or reproduced from a record carrier
• CPC Class Codes: G11B 20/00253 wherein the key is stored on the record carrier
• CPC Class Codes: G11B 23/0028 Details
• CPC Class Codes: G11B 23/0035 means incorporated in the disc, e.g. hub, to enable its guiding, loading or driving means for driving the head G11B21/06; guiding the disc for centering or locking G11B17/022; turntables or spindles for driving G11B19/2009
• CPC Class Codes: G11B 23/282 Limited play
• CPC Class Codes: G11B 27/36 Monitoring, i.e. supervising the progress of recording or reproducing for digital recording G11B20/00 and s.gr.; for monitoring, testing or measuring of TV recorders of the type covered by H04N5/76 and subgroups, see H04N17/06

Abstract

Embodiments of methods and systems for controlling access to information stored on memory or data storage devices are disclosed. In various embodiments, fluid-mediated modification of information or access to information is utilized. According to various embodiments, data storage devices designed for rotating access are described which include rotation-activated fluid control mechanisms.

Claims

1-20. -20. (canceled)

21. A data storage device comprising:

a substrate;

a data storage medium on said substrate, said data storage medium degradable upon exposure to a degradation-inducing influence; and

a rotation-responsive barrier portion configured to shield said data storage medium from said degradation-inducing influence.

22. The data storage device of claim 21, wherein said rotation-responsive barrier portion comprises a removable barrier portion that, upon subjection to sufficient centrifugal force, is removable to permit exposure of said data storage medium to said degradation-inducing influence.

23. The data storage device of claim 22, wherein said barrier portion is removed as at least one structural unit.

24. The data storage device of claim 22, wherein said barrier portion is removed by evaporation.

25. The data storage device of claim 21, wherein said rotation-responsive barrier portion comprises a modifiable barrier portion that is modifiable by subjection to sufficient centrifugal force to permit exposure of said data storage medium to said degradation-inducing influence.

26. The data storage device of claim 25, wherein exposure of said barrier portion to sufficient centrifugal force modifies an optical transmissivity by said barrier portion.

27. The data storage device of claim 25, wherein exposure of said barrier portion to sufficient centrifugal force modifies an electrical conductivity of said barrier portion.

28. The data storage device of claim 25, wherein exposure of said barrier portion to sufficient centrifugal force modifies a permittivity of said barrier portion.

29-41. -41. (canceled)

42. A method of manufacturing a data storage device, comprising:

forming a substrate configured for rotating access;

providing a data storage medium on said substrate; and

forming an electrical circuit on said substrate, said electrical circuit including a rotation-activatable mechanical switch and configured to produce degradation of at least a portion of data stored in said data storage medium upon activation of said rotation-activatable mechanical switch.

43. The method of claim 42, further comprising:

storing machine readable data in said data storage medium.

44. The method of claim 42, wherein forming an electrical circuit on the substrate includes forming an electrical circuit including a rotation-activatable mechanical switch oriented to close in response to angular acceleration.

45. The method of claim 42, wherein forming an electrical circuit on the substrate includes forming an electrical circuit including a rotation-activatable mechanical switch oriented to close in response to angular deceleration.

46. The method of claim 42, wherein forming an electrical circuit on the substrate includes forming an electrical circuit including a rotation-activatable mechanical switch oriented to close in response to centripetal acceleration.

47. The method of claim 42, wherein forming an electrical circuit on the substrate includes forming an electrical circuit including a rotation-activatable mechanical switch oriented to close in response to centripetal deceleration.

48. The method of claim 42, wherein forming an electrical circuit on the substrate includes forming an electrical circuit including a rotation-activatable mechanical momentary-contact switch.

49. The method of claim 42, wherein forming an electrical circuit on the substrate includes forming an electrical circuit including a rotation-activatable mechanical maintained contact switch.

50. The method of claim 42, wherein providing a data storage medium on said substrate includes providing a degradable data storage medium, and wherein said electrical circuit is configured to produce degradation of said at least a portion of data stored in said data storage medium through degradation of said data storage medium.