公开(公告)号：US6115340A

公开(公告)日：2000-09-05

申请号：US800633

申请日：1997-02-14

Applicant: Gijsbert J. Van Den Enden ,  Johannes H. M. Spruit ,  Johan P. W. B. Duchateau ,  Johannes H. G. Jaegers

Inventor： Gijsbert J. Van Den Enden ,  Johannes H. M. Spruit ,  Johan P. W. B. Duchateau ,  Johannes H. G. Jaegers

IPC: G11B20/10 ,  G11B7/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/30 ,  G11B20/12 ,  G11B20/18 ,  G11B27/00

CPC classification number: G11B7/006 ,  G11B20/1217 ,  G11B7/0045 ,  G11B2020/10898 ,  G11B2020/1277 ,  G11B2020/1288 ,  G11B2220/216 ,  G11B2220/2545 ,  G11B7/00454

Abstract: The device according to the invention is suitable for recording a rewritable information carrier such a CD-E covered by a phase-change recording layer. As is known, such an information carrier has a limited useful life because the recorded, optically readable patterns start deviating ever more from the desired form when recorded recurrently. The invention is also based on the recognition that this degradation is accelerated if a certain part of the track on the information carrier constantly accommnodates the same patterns, for example, if information blocks are recorded starting from fixed initial positions and the information is represented by the patterns in a specific manner. The device comprises means for shifting the initial position along the track over a distance randomly selected within predefined boundaries and/or for adapting the manner of representation. This causes constantly different patterns to be recorded, even if the same information is to be recorded in a specific part of the track. The information carrier described according to the invention has an additional margin between the information blocks to allow of the shifting of the initial position.

Abstract translation: 根据本发明的装置适用于记录由相变记录层覆盖的诸如CD-E的可重写信息载体。 众所周知，这种信息载体具有有限的使用寿命，因为记录的光可读模式在循序记录时开始偏离期望的形式。 本发明还基于这样的认识，即如果信息载体上的轨道的某一部分不断地匹配相同的模式，则这种劣化是加速的，例如，如果从固定的初始位置开始记录信息块，并且信息由 模式以特定的方式。 该装置包括用于沿着轨道在预定边界内随机选择的距离上移动初始位置和/或用于调整表示方式的装置。 即使在轨道的特定部分记录相同的信息，也会导致持续不断的记录模式。 根据本发明描述的信息载体在信息块之间具有允许初始位置移位的附加余量。

公开(公告)号：US06469968B1

公开(公告)日：2002-10-22

申请号：US09619071

申请日：2000-07-19

Applicant: Gijsbert J. Van Den Enden ,  Johannes H. M. Spruit ,  Johan P. W. B. Duchateau ,  Johannes H. G. Jaegers

Inventor： Gijsbert J. Van Den Enden ,  Johannes H. M. Spruit ,  Johan P. W. B. Duchateau ,  Johannes H. G. Jaegers

IPC: G11B509

CPC classification number: G11B7/006 ,  G11B7/0045 ,  G11B7/00454 ,  G11B20/1217 ,  G11B2020/10898 ,  G11B2020/1277 ,  G11B2020/1288 ,  G11B2220/216 ,  G11B2220/2545

Abstract: The life of a rewritable information carrier such a CD-E covered by a phase-change recording layer is extended by varying the manner of representing information of an information block, for subsequent recordings, in the same portion of the record carrier. The manner can be changed, for example, by shifting the initial position at which representing information is written along the track over a distance randomly selected within predefined boundaries; or by writing a varying amount of information representing information from the end of the block before the start of information from the beginning of the information block to rotate the information in the track; or by scrambling the information in a varying manner such as using different keys. The manner of representation can be changed, for example, for each subsequent recording on the same portion of the record carrier. This causes different patterns to be recorded in the same portion, even if the same information is recorded in that portion of the track.

Abstract translation: 由相变记录层覆盖的诸如CD-E的可重写信息载体的寿命通过改变在记录载体的相同部分中用于后续记录的信息块的信息的表示的方式而被扩展。 例如，可以通过沿着轨道在预定边界内随机选择的距离上沿着轨道写入表示信息的初始位置来改变方式; 或者通过在从信息块的开头开始信息之前写入表示来自块结束的信息的变化量的信息，以使信息在轨道中旋转; 或通过以诸如使用不同的键的不同方式加扰信息。 例如，可以改变表示的方式，用于记录载体的相同部分上的每个后续记录。 这导致不同的图案被记录在相同的部分中，即使在轨道的该部分中记录了相同的信息。