# US 2008/0186825 A1 · Optical information storage medium

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2008/0186825 A1
- Document ID: US20080186825A1
- Status: Published application
- Kind: A1
- Application number: 12/061,759
- Filed: 2008-04-03
- Published: 2008-08-07
- Earliest claimed: 2003-01-30
- Assignees: Samsung Electronics Co., Ltd.
- Inventors: Kyung-geun Lee
- Web page: https://patentgrep.com/patent/US20080186825A1

## CPC

- G11B 7/00736: {Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information (sector headers or adresses in prepits G11B7/00745; address data in track wobble G11B7/24082)}
- G11B 7/0079: {Zoned data area, e.g. having different data structures or formats for the user data within data layer, Zone Constant Linear Velocity [ZCLV], Zone Constant Angular Velocity [ZCAV], carriers with RAM and ROM areas}
- G11B 7/24079: Width or depth (G11B7/24076 takes precedence)
- G11B 7/005: Reproducing (G11B7/0065 takes precedence)
- G11B: INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (recording measured values in a way that does not require playback through a transducer G01D9/00; recording or playback apparatus using mechanically marked tape, e.g. punched paper tape, or using unit records, e.g. punched or magnetically marked cards G06K; transferring data from one type of record carrier to another G06K1/18; circuits for coupling output of reproducer to radio receiver H04B1/20; gramophone pick-ups or like acoustic electromechanical transducers or circuits therefor H04R)

## Abstract

An optical information storage medium includes a plurality of areas and at least one transition area. Each transition area is located between two adjacent areas. The transition area allows data to be smoothly reproduced from the optical information storage medium at a low error generation rate. Also, since the optical information storage medium provides standards for the transition area, it is compatible with existing optical information storage media.

## Claims

### Claim 1

An optical information storage medium comprising:
a burst cutting area (BCA);
a lead-in area;
a user data area;
a lead-out area; and
a transition area,
wherein at least one of the BCA, the lead-in area, the user data area, and the lead-out area is divided into a plurality of sub-areas, the plurality of sub-areas comprising a first sub-area having a first track pitch and a second sub-area having a second track pitch different from the first track pitch, and
the transition area is located between the first sub-area and the second sub-area.

### Claim 2

An apparatus to reproduce information stored in an optical information storage medium having a burst cutting area (BCA), a lead-in area, a user data area, a lead-out area, and a transition area, the apparatus comprising:
an optical pickup to emit light to the optical information storage medium; and
a control unit to control the optical pickup to read the information stored in the user data area,
wherein at least one of the BCA, the lead-in area, the user data area, and the lead-out area is divided into a plurality of sub-areas, the plurality of sub-areas comprising a first sub-area having a first track pitch and a second sub-area having a second track pitch different from the first track pitch, and
the transition area is located between the first sub-area and the second sub-area.