Method and system for fluid mediated disk activation and deactivation

• US 7,796,485 B2
• Filed: 12/21/2007
• Issued: 09/14/2010
• Est. Priority Date: 05/09/2005
• Status: Expired due to Fees

• Current Assignee: The Invention Science Fund I, L.L.C. (Intellectual Ventures LLC)
• Original Assignee: The Invention Science Fund I, L.L.C. (Intellectual Ventures LLC)
• Inventors: Ferren, Bran, Jung, Edward K. Y., Goodall, Eleanor V.
• Primary Examiner(s): CHOW, VAN NGUYEN
• Application Number:
  US12/004,627
• Publication Number:
  US 20080159108A1
• Time in Patent Office: 998 Days
• Field of Search: None
• US Class Current: 369/53.21
• 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 23/0035 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. A method of configuring a disk drive for use with a rotation-sensitive disk, comprising:

providing read head position instructions, including commands for controlling the position of a read head with respect to a disk received in the disk drive;

providing motor control instructions including commands for controlling rotational movement of a disk received in the disk drive during reading;

providing read instructions for managing reading of data from the disk with a sensor; and

providing data degradation instructions for controlling duration and speed of rotation of the disk at levels sufficient to induce degradation in the rotation-sensitive disk,

wherein the data degradation instructions include instructions for controlling rotation of the disk to produce activation of a pressure-sensitive fluid barrier on the disk.

2. The method of claim 1, wherein one or more of said read head position instructions, said motor control instructions, said read instructions and said data degradation instructions are provided in the form of software, hardware or firmware.

3. The method of claim 1, wherein said data degradation instructions are provided in the form of software.

4. The method of claim 1, wherein said data degradation instructions are provided in the form of hardware.

5. The method of claim 1, wherein said data degradation instructions are provided in the form of firmware.

6. The method of claim 1, wherein the data degradation instructions include instructions for controlling rotation of the disk to produce centrifugal activation of a rotation activatable fluid release mechanism on the disk.

7. The method of claim 1, wherein the data degradation instructions include instructions for controlling an angular acceleration of the disk.

8. The method of claim 1, wherein the data degradation instructions include instructions for controlling an angular deceleration of the disk.

9. The method of claim 1, wherein the data degradation instructions include instructions for controlling rotation of the disk to activate a rotation activatable fluid release mechanism on the disk prior to reading data from the disk.

10. The method of claim 1, wherein the data degradation instructions include instructions for controlling rotation of the disk to activate a rotation activatable fluid release mechanism on the disk subsequent to reading data from the disk.

11. The method of claim 1, wherein the data degradation instructions include instructions for controlling rotation of the disk to activate a rotation activatable fluid release mechanism on the disk simultaneous with reading data from the disk.

12. A method of configuring a disk drive for use with a rotation-sensitive disk, comprising:

providing read head position instructions, including commands for controlling the position of a read head with respect to a disk received in the disk drive;

providing motor control instructions including commands for controlling rotational movement of a disk received in the disk drive during reading;

providing read instructions for managing reading of data from the disk with a sensor; and

providing data degradation instructions for controlling duration and speed of rotation of the disk at levels sufficient to induce degradation in the rotation-sensitive disk,

wherein the data degradation instructions include instructions for producing rotation of the disk at a speed higher than the normal read speed for said disk to induce degradation in the rotation-sensitive disk.