Method for forming an information recording medium having information on spare area, and method and apparatus for recording/reproducing data to/from the medium
AssigneeLG Electronics Inc.
InventorsWoon-Sung Yeo, Yeo-Han Yun
Life of this patent
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Abstract
This invention provides an information recording medium, and a method and apparatus for writing to/reading from a recording medium in which a starting point of a spare area is variable relative to a starting point of a data area. Information concerning a variable boundary between the data area and the spare area is stored on the recording medium. A method and apparatus for writing/reproducing data to/from the recording medium is also provided. In a preferred embodiment, the recording medium is an optical disc.
Claims14
A method for writing to an information recording medium having a data area for recording data and a spare area for replacing defective units within said data area, wherein a boundary on said information recording medium between said data area and said spare area is variable, the method comprising:
- writing information to a predetermined area on said information recording medium, said information concerning the variable boundary between said data area and said spare area;
- and
- controlling an operation for recording of defective units on said information recording medium based on said information concerning the variable boundary.
An apparatus for writing to an information recording medium having a, data area for recording data and a spare area for replacing defective units within said data area, wherein a boundary on said information recording medium between said data area and said spare area is variable, the apparatus comprising:
- writing circuitry to write information concerning the variable boundary between said data area and said spare area to a predetermined area on said information recording medium;
- and
- a controller to control an operation for recording of defective units on said information recording medium based on said information concerning the variable boundary.
A method for reading from an information recording medium having a data area for recording data and a spare area for replacing defective units within said data area, wherein a boundary on said information recording medium between said data area and said spare area is variable, the method comprising:
- reading information from a predetermined area on said information recording medium, said information concerning the variable boundary between said data area and said spare area;
- and
- controlling an operation for reading of defective units on said information recording medium based on said information concerning the variable boundary.
An apparatus for reading from an information recording medium having a data area for recording data and a spare area for replacing defective units within said data area, wherein a boundary on said information recording medium between said data area and said spare area is variable, the apparatus comprising:
- reading circuitry to read information from a predetermined area on said information recording medium, said information concerning the variable boundary between said data area and said spare area;
- and
- a controller to control an operation for reading of defective units on said information recording medium based on said information concerning the variable boundary.
Dependencies are inferred from the claim text.