Method of identifying physical characteristic information of optical disc and related controller thereof
AssigneeMediatek Inc.
InventorsPing-Tsai Tsai, Ya-Fang Nien, Kun-Yi Chan
Life of this patent
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Abstract
A method of identifying physical characteristic information of an optical disc includes: deriving a reading result by reading at least a first region of the optical disc, where a location of the first region is specified in a Blu-ray disc specification for recording information associated with recording management of a BD recordable disc; and identifying a first physical characteristic of the optical disc according to the reading result.
Claims6
A method of identifying physical characteristic information of an optical disc, comprising:
- deriving a reading result by reading at least a first region of the optical disc, wherein a location of the first region is specified in a Blu-ray disc (BD) specification for recording information associated with recording management of a BD recordable disc;
- and
- identifying a first physical characteristic of the optical disc according to the reading result;
- wherein the location of the first region corresponds to a disc management area (DMA) specified in the BD specification;
- the first physical characteristic of the optical disc is a disc type of the optical disc;
- and identifying the first physical characteristic of the optical disc according to the reading result comprises:
- when the reading result indicates that the first region is not blank, checking data recorded in the first region, identifying the optical disc as a BD-R disc when the data recorded in the first region include sequential recording range information (SRRI) or a space bit map (SBM), and identifying the optical disc as a BD-RE disc when the data recorded in the first region include none of the SRRI and the SBM.
A method of identifying physical characteristic information of an optical disc, comprising:
- deriving a reading result by reading at least a first region of the optical disc, wherein a location of the first region is specified in a Blu-ray disc (BD) specification for recording information associated with recording management of a BD recordable disc;
- identifying a first physical characteristic of the optical disc according to the reading result;
- counting data units in one full rotation of the optical disc to generate a count number;
- and
- identifying a second physical characteristic of the optical disc according to the count number.
A controller for identifying physical characteristic information of an optical disc, comprising:
- a control unit, configured for controlling a data accessing block of an optical disc drive to derive a reading result by reading at least a first region of the optical disc, wherein a location of the first region is specified in a Blu-ray disc (BD) specification for recording information associated with recording management of a BD recordable disc;
- and
- an identifying unit, configured for identifying a first physical characteristic of the optical disc according to the reading result;
- wherein the location of the first region corresponds to a disc management area (DMA) specified in the BD specification;
- the first physical characteristic of the optical disc is a disc type of the optical disc;
- and when the reading result indicates that the first region is not blank, the identifying unit checks data recorded in the first region, identifies the optical disc as a BD-R disc when the data recorded in the first region include sequential recording range information (SRRI) or a space bit map (SBM), and identifies the optical disc as a BD-RE disc when the data recorded in the first region include none of the SRRI and the SBM.
A controller for identifying physical characteristic information of an optical disc, comprising:
- a control unit, configured for controlling a data accessing block of an optical disc drive to derive a reading result by reading at least a first region of the optical disc, wherein a location of the first region is specified in a Blu-ray disc (BD) specification for recording information associated with recording management of a BD recordable disc;
- an identifying unit, configured for identifying a first physical characteristic of the optical disc according to the reading result;
- and
- a counting unit, configured for counting data units in one full rotation of the optical disc to generate a count number;
- wherein the identifying unit further identifies a second physical characteristic of the optical disc according to the count number.
Dependencies are inferred from the claim text.