Samsung Electronics Co., Ltd.

Matsushita Electric Industrial Co., Ltd.

National Institute of Advanced Industrial Science and Technology

In-sik Park

Kyung-geun Lee

Du-seop Yoon

Jung-wan Ko

Byung-in Ma

Chong-sam Chung

Byoung-ho Choi

Jung-Wan Ko

Jae-seong Shim

Yong-Jin Ahn

Tatsuhiro Otsuka

Seong-sin Joo

Seong-sue Kim

Han-kook Choi

Young-sun Seo

Tae-yong Doh

Chang-jin Yang

Chang-min Park

Jong-pil Park

Sung-hyu Han

Joong-eon Seo

Myong-do Ro

Jang-hoon Yoo

Young-yoon Kim

Yoon-ki Kim

Ki-Hyun Kim

In-oh Hwang

Jin-hoon Jeon

Yoon-woo Lee

Joong-Eon Seo

Myoung-june Kim

Jung-kwon Heo

Byung-jun Kim

Dong-Ho Shin

Hee-deuk Park

Sung-hee Hwang

Young-man Ahn

Hea-jung Suh

Ki-hyun Kim

Myoung-Jong Song

Kyu-hyeong Lee

Kwan-joon Kim

Motoshi Ito

Chul-woo Lee

Makoto Usui

Pyong-yong Seong

Yong-hoon Lee

Young-min Cheong

Dong-ho Shin

Kyung Geun Lee

Do-hoon Chang

Jong-phil Park

Ghang-min Park

Junji Tominaga

Chul-Woo Lee

Tae-Kyung Kim

Seok-jung Kim

Young-Man Ahn

Seung-tae Jung

Tae-kyung Kim

Jin-han Kim

Soo-yul Jung

Joo-Ho Kim

Sung-ro Go

Sun-mo Kim

Masashi Kuwahara

Heui-jong Kang

Young-Joo Seo

Du-Seop Yoon

Yong-kwang Won

Byung-ho Choi

Kyung-goun Lee

Byung-In Ma

Young-jin Ahn

Hao-kook Choi

Myoung-iong Song

Tae-yeon Lee

Du-seop Yoom

Takayuki Sima

Tatsuhiro Oisuka

Chong-san Chung

An optical disc includes a plurality of recording layers, each layer having a lead-in area, a data area, and a lead-out area. A dedicated-reproducing area having a disc-related information zone, and a rewritable area are provided in at least one of the lead-in and lead-out areas of the optical disc. Accordingly, a reliability of a data recording/reproducing with respect to the optical disc is improved.

Optical disc having a plurality of recording layers, and recording method and reproducing method therefor

A method of and apparatus for recording data on an optical recording medium form a mark or a space by using a recording waveform having an erase pattern containing a multi-pulse. The method and the apparatus prevent distortion of the mark or the space and improve a mark shape such that a recording/reproducing characteristic of the optical recording medium is improved.

Method of and apparatus for recording data on optical recording medium

An optical recording medium having a read-only storage area and a writable storage area and a recording/reproducing apparatus and method therefor. The optical recording medium is a hybrid disc having both the read-only storage area, which is suitable for mass production of information having the same contents, and the writable storage area on which data can be recorded, updated or added at a user's option. The read-only storage area has a structure that is completely compatible with a digital versatile disc read only memory (DVD-ROM) specification, and the writable storage area is compatible with the recording/reproducing characteristics of a writable DVD specification so that an existing reproducing-only apparatus can read information from the read-only storage area, and data can be recorded in the writable storage area using an apparatus obtained by minimally changing an existing recording/reproducing apparatus while maintaining the physical recording characteristics of the existing recording/reproducing apparatus.

Optical recording medium having read-only storage area and writable storage area and recording/reproducing apparatus and method therefor

An information storage medium includes an area in which updated disc-related information and recording-related information updated with a change in at least one of a disc version number and a recording speed is recorded along with existing disc-related information and recording-related information. The existing disc-related information and recording-related information are recorded, and the updated disc-related information and recording-related information is recorded in an area in which the existing disc-related information and recording-related information is recorded. Accordingly, data can be recorded/reproduced on/from a new version of information storage medium even using an existing drive.

Information storage medium and method of recording and/or reproducing with respect to the medium

An optical disc includes tracking polarity information. The optical disc includes a clamping area, a lead-in area, a data area, and burst cutting area (BCA). The BCA is present between the clamping area and the lead-in area and in which information regarding the optical disc is recorded, and the information is read before performing tracking in the data area. Accordingly, it is possible to obtain the tracking polarity information and/or reflectivity information without trial and error and directly record or reproduce user data in a data area of the optical disc

Optical disc having tracking polarity information, and apparatuses and methods for recording and reproducing user data on the same

An optical recording medium is provided for allowing data to be recorded on, erased from, and reproduced from, and storing information about power levels of an erase pulse. The recorded erase pattern information may include information about power levels of first and last pulses of an erase pattern for erasing data. The first and last pulses of the erase pattern can be differently set depending on the differing kind of recording layer or layers of a disk or differing kinds of disks and recorded in a reproducible only area or rewritable area of the optical recording medium. Thus, by presetting the appropriate erase power levels, the time required for selecting an optimal erase power for the optical recording medium can be considerably reduced.

Method of recording erase pattern information on an optical recording medium, erasing information on the optical recording medium based on the erase pattern information, and optical recording medium therefor

An error correction block having an extended format compatible with a standardized format of a conventional error correction block, a method and apparatus for generating the error correction block, and a method of correcting an error using the error correction block. The method of generating an error correction block includes adding extra parity information for error correction to input data which is of a smaller size than main data of a standardized reference format, thereby generating an extra error correction block which is the same size as the main data, and generating an error correction block complying with the reference format using the extra error correction block as the main data.

Error correction block, method and apparatus for generating error correction block, and error correction method

An optical disc is manufactured under a uniform condition by forming grooves and lands on the entire surface of the disc. The optical disc is configured to obtain a reliable reproduction signal, and the grooves and lands are formed on a lead-in area, a user data area and a lead-out area of the optical disc. Since the same manufacturing condition can be adopted in mastering discs, the yield can be enhanced and the manufacturing cost can be reduced.

Optical disc having uniform structure

A recording medium having a spare area for defect management, and a method and apparatus for allocating and assigning the spare area. A plurality of zones are formed as one group without prescribing the relationship between a zone and a group. Spare areas include a spare area for slipping replacement and a spare area for linear replacement. The spare area for slipping replacement is first allocated, and the spare area for linear replacement is allocated according to the size of an area remaining after the spare area for slipping replacement is used and the purpose for which a disc is used. When the spare area for linear replacement becomes deficient during use of the disc, a supplementary spare area for linear replacement is allocated in sequence from the rearmost of a logical file area, such that the spare area can be more flexibly and effectively allocated.

Apparatus for recording/reproducing data from a data are including a spare area for defect management allocated in reverse order from rearmost units of data area

An optical disc includes a read-only area having a first wobble, which is a data wobble formed in the read-only area for only reading, a readable/writable area having a second wobble, which is different from the data wobble, and a connection area between the read-only area and the readable/writable area having a third wobble having the same frequency as one of the first and second wobbles.

Optical disc

A recording medium storing information indicating that linking is applied immediately after the defective area, distinguishing a linking type which occurs in a general incremental recording mode from a linking type which occurs after the defective area. Defective areas are detected and registered in a predetermined area (recording management data (RMD) area) before user data is recorded or while user data is being recorded in the recording medium having a plurality of continuous basic recording units, such as a digital versatile disc-rewritable (DVD-RW) in which recording and reproducing can be done repeatedly. Linking is not only applied in an incremental recording mode or in a restricted overwrite recording mode, but linking is also applied to an area immediately after the defective area which is registered in the defect list, increasing reliability of the user data.

Recording medium for storing linking type information and method of processing defective area using the same

An optical disc includes tracking polarity information. The optical disc includes a clamping area, a lead-in area, a data area, and a burst cutting area (BCA). The BCA is present between the clamping area and the lead-in area and in which information regarding the optical disc is recorded, and the information is read before performing tracking in the data area. Accordingly, it is possible to obtain the tracking polarity information and/or reflectivity information without trial and error and directly record or reproduce user data in a data area of the optical disc.

An optical information storage medium includes a lead-in area, a lead-out area, and a user data area between the lead-in and lead-out areas and in which user data is recorded. Pits are formed in the lead-in area, the user data area, and the lead-out area, and a track pitch in all or a portion of the lead-in area is different from a track pitch in the remaining area of the optical information storage medium.

Method of transferring data with respect to an optical information storage medium having different track pitches

An optical information storage medium and a method of recording thereon. The optical information storage medium has a lead-in area, a user data area and a lead-out area, and data indicating a maximum and/or a minimum writing speed, maximum and minimum writing speeds, or compatible writing speeds is recorded in a recordable region of at least one of the lead-in area and the lead-out area. The optical information storage medium and the method of recording on the media enable a disc drive to reliably record data on a disc which cannot achieve a prescribed recording speed due to manufacturing conditions, at an optimal speed considering the pre-recorded writing speed data.

Optical information storage medium and method of and apparatus for recording data thereon

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Gyeonggi-do, South Korea

In-sik Park