Method and system for fluid mediated disk activation and deactivation
AssigneeSearete LLC, a limited liability corporation of the State of Delaware
InventorsBran Ferren, Eleanor V. Goodall, Edward K.Y. Jung
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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.
Claims25
-40. (canceled)
A method of operating a disk drive, comprising:
- adjusting the radial position of a read head with respect to a disk received in the disk drive;
- controlling the rotation of a disk received in the disk drive to permit reading of data from the disk;
- reading data from the disk with a sensor;
- and
- controlling rotation of the disk to produce activation of a rotation sensitive structure configured to produce degradation of data on the disk, including producing a pressure differential across a pressure-sensitive fluid barrier sufficient to cause fluid to move through said pressure-sensitive fluid barrier.
-44. (canceled)
A method of operating a disk drive, comprising:
- adjusting the radial position of a read head with respect to a disk received in the disk drive;
- controlling the rotation of a disk received in the disk drive to permit reading of data from the disk;
- reading data from the disk with a sensor;
- and
- controlling rotation of the disk to produce activation of a rotation sensitive structure configured to produce degradation of data on the disk, the rotation sensitive structure including a micromechanical valve.
A method of operating a disk drive, comprising:
- controlling the rotation of a disk received in the disk drive to permit reading of data from the disk, the disk including a fluid release mechanism including fluid contained within a fluid chamber on the disk and a pressure sensitive fluid barrier having a selected orientation and break pressure;
- reading data from the disk with a sensor;
- and
- controlling rotation of the disk to produce a pressure differential across the pressure-sensitive fluid barrier sufficient to cause fluid to move through the pressure-sensitive fluid barrier to produce degradation of at least a portion of the data stored on the disk;
- wherein the reading data from the disk with a sensor and controlling rotation of the disk to produce a pressure differential across the pressure-sensitive fluid barrier sufficient to cause fluid to move through the pressure-sensitive fluid barrier to produce degradation of at least a portion of the data stored on the disk are timed such that degradation of the at least a portion of the data stored on the disk occurs after the at least a portion of the data has been read from the disk with the sensor.
Dependencies are inferred from the claim text.