Method and apparatus for data storage
AssigneeThomson Licensing
InventorMeinolf Blawat
Life of this patent
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Abstract
A method and an apparatus for data storage based on fibers are described. Data are stored as marks in a surface of a fiber or in a volume near the surface of the fiber. Data marks are written to or read from the fiber by irradiating the surface of the fiber with at least one radiation beam. The fiber has calibration marks for controlling a speed of the fiber relative to the at least one radiation beam.
Claims20
An apparatus for writing to a fiber, with at least one radiation source for emitting at least one radiation beam for writing to the fiber, wherein the apparatus is adapted to write marks into a surface of the fiber by irradiating the surface of the fiber with the at least one radiation beam to generate holes in the surface of the fiber or to induce changes of an optical property of the material of the fiber close to the surface of the fiber.
An apparatus for reading from a fiber, with at least one radiation source for emitting at least one radiation beam for reading from the fiber, wherein the apparatus is adapted to read marks from a surface of the fiber by irradiating the surface of the fiber with the at least one radiation beam and detecting radiation reflected by the fiber or transmitted through the fiber.
A method for writing to a fiber, the method comprising the steps of:
- generating at least one radiation beam with at least one radiation source for writing to the fiber, and
- writing marks into a surface of the fiber by irradiating the surface of the fiber with the at least one radiation beam to generate holes in the surface of the fiber or to induce changes of an optical property of the material of the fiber close to the surface of the fiber.
A method for reading from a fiber, the method comprising the steps of:
- generating at least one radiation beam with at least one radiation source for reading from the fiber, and
- reading marks from a surface of the fiber by irradiating the surface of the fiber with the at least one radiation beam and detecting radiation reflected by the fiber or transmitted through the fiber.
Dependencies are inferred from the claim text.