Data storage medium with stepped winding core
AssigneeTesa Scribos GmbH
InventorsJorn Leiber, Bernhard Mussig, Stefan Stadler, Steffen Noehte
Life of this patent
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Abstract
A data storage medium includes an information carrier wound onto a winding core in a spiral manner for optically readable information units. The winding core is configured in a spiral manner on its outer contour and has a step. The height of the step is matched to the thickness of the information carrier. The inner end of the information carrier rests on the winding core at the step or in the area of the step.
Claims32
A data storage medium comprising an information carrier wound onto a winding core in a spiral manner for optically readable information units, the winding core being configured in a spiral manner on its outer contour and including a step, whose height is matched to the thickness of the information carrier, and the inner end of the information carrier resting on the winding core at the step or in the area of the step.
A method for using a data storage medium comprising an information carrier wound onto an optically transparent winding core in a spiral manner for optically readable information units, the winding core having a recess in its central area, being configured in a spiral manner on its outer contour and including a step whose height is matched to the thickness of the information carrier, the inner end of the information carrier resting on the winding core at the step or in the area of the step, the method comprising:
- disposing a read device having a read beam in the recess of the data storage medium;
- and
- moving the read device while keeping the data storage medium stationary in order to direct the read beam onto data storage medium to read data therefrom.
A data storage medium comprising an information carrier wound onto a winding core in a spiral manner, the winding core comprising a spiral-like outer contour having a step portion with a size corresponding to the thickness of the information carrier.
A memory device comprising:
- a data storage medium comprising an information carrier wound onto a winding core in a spiral manner to provide a plurality of plies, the winding core comprising a spiral-like outer contour having a step portion with a size corresponding to the thickness of the information carrier;
- and
- a read head provided in a central recess of the winding core for reading data from the spirally-wound information carrier by focusing a light beam on selected individual plies.
A memory device comprising:
- a data storage medium comprising an information carrier wound onto a winding core in a spiral manner to provide a plurality of plies, the winding core comprising a spiral-like outer contour having a step portion with a size corresponding to the thickness of the information carrier;
- and
- a read/write head provided in a central recess of the winding core for reading data from and writing data to the spirally-wound information carrier by focusing a light beam on selected individual plies.
A winding core for spirally winding a data storage medium comprising an information carrier thereon, wherein the winding core comprises a spiral-like outer contour having a step portion with a size corresponding to the thickness of the information carrier.
Dependencies are inferred from the claim text.