Method and apparatus for preventing data reproducibility
AssigneeToshiba Samsung Storage Technology Korea Corporation
InventorWon Ik Cho
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Abstract
Provided are a method and an apparatus to prevent reproducibility of data with respect to an optical information storage medium. The method includes recording patterns with respect to the optical information storage medium using irradiated light so as prevent reproduction of the data. The patterns may cause an error or a malfunction when attempting to access the data of the optical information storage medium so as to prevent the reproduction of the data.
Claims28
An apparatus to prevent reproducibility of data with respect to an optical information storage medium, the apparatus comprising:
- an optical pickup to irradiate light to record patterns with respect to the optical information storage medium so as to prevent reproduction of the data of the optical information storage medium;
- and
- a controller to control the optical pickup so as to record at least part of the patterns by repeatedly moving the optical pickup a plurality of times between inner and outer circumferences of the information storage medium while not following a recording track of the optical information storage medium to generate a predetermined spiral recording pattern on the information storage medium,
- wherein the controller controls the optical pickup to create a phase difference.
An apparatus to prevent reproducibility of data with respect to an optical information storage medium, the apparatus comprising:
- an optical pickup to irradiate light to record patterns with respect to the optical information storage medium so as to prevent reproduction of the data of the optical information storage medium;
- and
- a controller to control the optical pickup so as to record at least part of the patterns by repeatedly moving the optical pickup a plurality of times between inner and outer circumferences of the information storage medium while not using an additional tracking servo operation of the optical pickup to generate a predetermined recording pattern of non-concentric circles on the information storage medium,
- wherein the controller controls the optical pickup to create a phase difference.
An apparatus to prevent reproducibility of data with respect to an optical information storage medium, the apparatus comprising:
- an optical pickup to irradiate light to record patterns with respect to the optical information storage medium so as to prevent reproduction of the data of the optical information storage medium;
- and
- a controller to control the optical pickup so as to record at least part of the patterns in a reciprocating motion between inner and outer circumferences of the optical information storage medium by repeatedly moving the optical pickup a plurality of times between the inner and outer circumferences of the information storage medium while not following a recording track of the optical information storage medium to generate a predetermined spiral recording pattern on the information storage medium,
- wherein the controller controls the optical pickup to create a phase difference.
A method of preventing reproducibility of data with respect to an optical information storage medium, the method comprising:
- recording patterns with respect to the optical information storage medium using irradiated light so as to prevent reproduction of the data of the optical information storage medium,
- wherein at least part of the patterns is recorded by an optical pickup in a reciprocating motion between inner and outer circumferences of the optical information storage medium by repeatedly moving the optical pickup a plurality of times between the inner and outer circumferences of the information storage medium while not following a recording track of the optical information storage medium to generate a predetermined spiral recording pattern on the information storage medium.
Dependencies are inferred from the claim text.