Lg Electronics Inc.

Goldstar, Co., Ltd.

Sang Woon Suh

Jin Yong Kim

Jin Sung Kim

Ik Beom Jeon

Dae Young Kim

Jae Jin Lee

Kyung Chan Park

Yun Sup Shin

Won Bae Joo

Kees A Schouhamer Immink

Seong Keun Ahn

Joo Hyun Lee

Jung Bae Park

Jun Taek Lee

Seoung Keun Ahn

Joo Hyum Lee

Jung-Bae Park

Kees A Schouhammer Immink

A recording medium, such as a high-density and/or read-only recording medium, such as BD-ROM, which contains copy protection information encoded in intermittent or alternate wobbled pits, and to methods and apparatuses for forming, recording, and reproducing data on the recording medium.

Recording medium with copy protection information formed in intermittent or alternate wobbled pits and apparatus and methods for forming, recording, and reproducing the recording medium

A recording medium, such as a high-density and/or read-only recording medium, such as BD-ROM, capable of preventing unauthorized duplication of data streams, written thereon, onto another medium, such as a BD-RE or BD-R, which includes physical mark information, and to methods and apparatuses for forming, recording, reproducing, and restricting playback of the recording medium to prevent unauthorized duplication.

Recording medium with restricted playback feature and apparatus and methods for forming, recording, and reproducing the recording medium

In one embodiment, the method includes generating version information including a first version information and a second version information. At least one of the first version information and the second version information is to determine a backward compatibility with respect to reading or writing of the recording medium. The version information is recorded on a specific area of the recording medium.

Information recording medium, method of configuring version information thereof, recording and reproducing method using the same, and recording and reproducing apparatus thereof

A recording medium, such as a high-density and/or read-only recording medium including a data area including at least two data sections and a linking area to link neighboring data sections, the linking area including at least two frame sync signals, where values of the at least two frame sync signals maintain uniqueness, and to methods and apparatuses for forming, recording, and reproducing the recording medium.

Recording medium with a linking area including a synch pattern thereon and apparatus and methods for forming, recording, and reproducing the recording medium

A high-density optical disc such as BD-RE (Blu-ray Disc Rewritable) or BD-ROM, and a recording/reproducing method thereof are disclosed.

High-density optical disc and recording/reproducing method thereof

A recording medium having a data structure of a control information recorded on the recording medium or to be recorded/reproduced on/from the recording medium, characterized in that the control information is associated with a specific recording velocity and the control information includes write strategy information dependent on a type information indicating whether the control information is associated with CAV mode or CLV mode.

Recording medium, method of configuring control information thereof, recording and/or reproducing method using the same, and apparatus thereof

According to an embodiment, the invention is directed to an optical disc having signal tracks including a groove track, in which wobble signals are recorded on at least the groove track. Wobble units of wobble signals are modulated on the groove track, while at least 4 wobble units are used to represent a data bit of '0' or '1' in address information. Data bit of &#x201c;0&#x201d; or &#x201c;1&#x201d; in address information has a same phase and different phase with regard to alternate data bit at least to distinguish from each other.

Method for recording wobble signals on an optical disc and optical disc on which the wobble signals are recorded

In one embodiment, the method includes reading control information including version information from a specific area of the recording medium. The version information includes a first version information and a second version information. At least one of the first version information and the second version information is used to determine a backward compatibility with respect to reading or writing of the recording medium. A recording/reproducing of data on/from the recording medium is controlled based on the version information.

A recording medium, and a method and apparatus for recording data in the recording medium. The recording medium including an inner area, a data area, and an outer area includes a first test area contained in the inner area, and a second test area contained in the outer area, wherein the first and second test areas are formed by a predetermined wobble modulation method equal to that of the data area. Therefore, the recording medium can be applied to a method for manufacturing a Blu-ray disc, and data can be effectively recorded/reproduced in/from the recording medium, such as the Blu-ray disc.

Recording medium, and method and apparatus for recording data in the recording medium

The present invention relates to a method of managing CPI (Copy Protection Information) for preventing unauthorized copy of encrypted content recorded on a high-density recording medium such as a BD-ROM (Blu-ray Disc ROM). In the present method, when main content data is recorded in encrypted manner, CPI that is necessary to decrypt the encrypted main content data is written in a predetermined PIC area and is also copied at least once in an area other than the PIC area.

Method of managing copy protection information of a recording medium, recording medium with copy protection information for contents recorded thereon, and reproducing method for the recording medium

A recording medium, a method for recording control information in the recording medium, and a method and apparatus for recording/reproducing data in/from the recording medium using the same are disclosed. The recording medium includes a data area, and a management area for recording control information capable of identifying write compatibility and read compatibility with a driver for recording or reading data on or from the recording medium. Herein, the control information may include a class number for identifying the read compatibility, and a version number for identifying the write compatibility, and the write compatibility may be determined using the version number within the class number.

Recording medium, method for recording control information in the recording medium, and method and apparatus for recording/reproducing data in/from the recording medium using the same

A multi-layered high-density recording medium and an optical power adjusting method therefor. A multi-layered high-density recording medium includes multiple recording layers each of which contains optical power related information for all layers. An optical power adjusting method reading first optical power related information for all layers from a multi-layered optical disk placed in a disk player, storing the read information in another storage device, and making a current optical power apparatus to a moved layer without necessarily having to access the multi-layered optical disk by referring to the stored optical power related information when moving to another layer during record or reproduction.

Multi-layered high-density recording medium and optical power adjusting method therefor

A recording medium, such as a high-density and/or read-only recording medium including a data area including at least two data sections and a linking area to link neighboring data sections, the linking area including dummy data, and to methods and apparatuses for forming, recording, and reproducing the recording medium.

Recording medium with a linking area including dummy data thereon and apparatus and methods for forming, recording, and reproducing the recording medium

Growing community of inventors

Seoul, South Korea

Sang Woon Suh