Optical information recording and reproducing system and optical disk
    81.
    发明公开
    Optical information recording and reproducing system and optical disk 失效
    Aufzeichnungs- und Wiedergabesystemfüroptische Informationen und optische Platte。

    公开(公告)号:EP0271335A2

    公开(公告)日:1988-06-15

    申请号:EP87310841.9

    申请日:1987-12-09

    IPC分类号: G11B20/18 G11B20/10

    摘要: In a read only type optical disk and a write type optical disk (1) each thereof having a data recording area (18) and a spare area (17), first encoded data for error detection and correction are recorded in the data recording area (18, 25). In the case of the read only type optical disk (1), the spare area (17) is used as a check sector (22, 31) in which second encoded data are recorded. When error correction by first error control means (7) becomes impossible while sectors in the data recording area (18, 25) are repro­duced, second error control means (10) performs error correction by using the check sector (22, 31) corre­sponding to an associated error sector. In the case of the write type optical disk (1), the spare area (17) is used as an alternate sector. A defective sector detected by defective sector detecting means (10) is alternately recorded by being replaced by the alternate sector through sector alternating means (9).

    摘要翻译: 在具有数据记录区域(18)和备用区域(17)的只读型光盘和写型光盘(1)中,用于检错和纠错的第一编码数据被记录在数据记录区 18,25)。 在只读型光盘(1)的情况下,备用区(17)被用作记录第二编码数据的检查扇区(22,31)。 当再现数据记录区域(18,25)中的扇区时,当第一误差控制装置(7)的纠错变得不可能时,第二误差控制装置(10)通过使用对应于 相关错误扇区。 在写入型光盘(1)的情况下,备用区域(17)用作交替扇区。 由缺陷扇区检测装置(10)检测到的缺陷扇区通过由交替扇区通过扇区交替装置(9)替换而交替记录。

    Data recording and reproducing apparatus
    82.
    发明公开
    Data recording and reproducing apparatus 失效
    Datenaufzeichnungs- undWiedergabegerät。

    公开(公告)号:EP0218243A2

    公开(公告)日:1987-04-15

    申请号:EP86113927.7

    申请日:1986-10-08

    IPC分类号: G11B7/013 G11B7/125

    CPC分类号: G11B7/126 G11B7/006

    摘要: An optical disc for recording, repro­ducing or erasing data is radiated with an erasing light beam (10) and a recording-reproducing light beam (9) sequentially to record or reproduce the data with the recording-reproducing light beam and erase the data with the erasing light beam. In rewriting the data, the erasing light beam is radiated in advance of the recording-­reproducing light beam on a data section of the disc, and the old data is erased by temperature increase and annealing by the erasing light beam, while new data is recorded by temperature increase and quenching with the recording-reproducing light beam set to the recording light intensity. After recording the new data, the light intensity of the erasing light beam is gradually decreased and turned off. In rewriting the sector data, the erasing light beam is radiated on the data section in advance of the recording-reproducing light beam, and by the temperature increase and annealing with the erasing light beam, the old data is erased, while new data is recorded by temperature increase and quenching with the recording-reproducing light beam set to the recording light intensity. After recording the new data, the light intensity of the erasing light beam is turned off after being modulated for a predetermined time. By doing so, the process of the temperature and quenching is eliminated which otherwise might be required at the time of turning off the erasing light beam, thereby preventing occurrence of a recording trace and a defect of the recording medium by a thermal shock.

    摘要翻译: 用擦除光束(10)和记录再现光束(9)依次用记录再现光束照射用于记录,再现或擦除数据的光盘,以用记录再现光束记录或再现数据,并用 擦除光束。 在重写数据时,擦除光束在记录再现光束之前被放射到盘的数据部分上,并且通过擦除光束的温度升高和退火擦除旧数据,同时记录新数据 通过设置为记录光强度的记录 - 再现光束的温度升高和淬火。 在记录新数据之后,擦除光束的光强度逐渐降低并关闭。 在重写扇区数据时,擦除光束在记录再现光束之前在数据部分被辐射,并且通过用擦除光束进行升温和退火,旧数据被擦除,而新数据被记录 通过设置为记录光强度的记录 - 再现光束的温度升高和淬火。 在记录新数据之后,擦除光束的光强度在被调制预定时间后被关闭。 通过这样做,消除了在关闭擦除光束时可能需要的温度和淬灭的过程,从而防止由于热冲击而产生记录痕迹和记录介质的缺陷。

    Multi-layered optical disk
    85.
    发明公开
    Multi-layered optical disk 失效
    多层光盘

    公开(公告)号:EP1515316A2

    公开(公告)日:2005-03-16

    申请号:EP04076975.4

    申请日:1990-10-29

    IPC分类号: G11B7/085

    摘要: A method of selectively accessing a desired recording layer on a multi-layered optical disk is described. The multi-layered optical disk comprises a first recording layer (3; 7a) superposed on a first base plate (2), a second recording layer (4; 7c) superposed on a second base plate (2), and a spacer (5) of adhesive disposed between the first recording layer (3; 7a) and the second recording layer (4; 7c). Each recording layer (3, 4; 7a, 7b, 7c) has an identification section (ID a , ID b ). Information is recorded on and/or reproduced from the recording layers (3, 4; 7a, 7b, 7c) by a focused light beam. The method comprises changing the focus of the light beam and detecting zero cross points of respective focusing error signal S curves, each S curve corresponding to a respective recording layer, until the same number of zero cross points as an ordinal number of the desired recording layer is detected. The correct selection of the recording layer (3, 4; 7a, 7b, 7c) is confirmed by reading an identification section (ID a , ID b ) thereof which stores its recording layer address.

    Multi-layered optical disk
    86.
    发明公开

    公开(公告)号:EP1498887A2

    公开(公告)日:2005-01-19

    申请号:EP04076976.2

    申请日:1990-10-29

    IPC分类号: G11B7/085

    摘要: A method of selectively accessing a desired recording layer on a multi-layered optical disk is described. The multi-layered optical disk comprises a first recording layer (3; 7a) superposed on a first base plate (2), a second recording layer (4; 7c) superposed on a second base plate (2), and a spacer (5) of adhesive disposed between the first recording layer (3; 7a) and the second recording layer (4; 7c). Each recording layer (3, 4; 7a, 7b, 7c) has an identification section (ID a , ID b ). Information is recorded on and/or reproduced from the recording layers (3, 4; 7a, 7b, 7c) by a focused light beam. The method comprises changing the focus of the light beam and detecting zero cross points of respective focusing error signal S curves, each S curve corresponding to a respective recording layer, until the same number of zero cross points as an ordinal number of the desired recording layer is detected. The correct selection of the recording layer (3, 4; 7a, 7b, 7c) is confirmed by reading an identification section (ID a , ID b ) thereof which stores its recording layer address.

    Multimedia optical disk, reproduction apparatus and method for achieving variable scene development based on interactive control
    89.
    发明公开
    Multimedia optical disk, reproduction apparatus and method for achieving variable scene development based on interactive control 失效
    多媒体光盘,再生装置和方法,用于通过交互控制变量场景发展

    公开(公告)号:EP0915470A3

    公开(公告)日:2004-03-24

    申请号:EP99200373.1

    申请日:1996-08-19

    摘要: A multimedia optical disk is provided. The multimedia optical disk includes a data area for storing objects which include moving picture data and at least one of audio data and sub-picture data. The multimedia optical disk also includes an index area for storing reproduction orders of the objects. Route information in the index area includes a sequence of addresses of objects whose alignment represents a reproduction order. Chain control information in the index area corresponds to the route information. The chain control information, being effective in reproducing objects specified by the alignment of the sequence of addresses (objects specified by the alignment of the sequence of addresses are called a chain), instructs the reproduction apparatus to have a navigation control of the chain. A piece of moving picture data having a certain time period is reproduced at the same timing as a piece of audio data and a piece of sub-picture data. A piece of sub-control information, being effective in reproducing moving picture data, sub-picture data, and audio data stored in a small unit instructs the reproduction apparatus to have a navigation control of the data stored in the same small unit.

    摘要翻译: 本发明提供一种多媒体光盘。 的多媒体光盘包括用于存储对象哪些包括运动图像数据和音频数据和副图象数据中的至少一个的数据的区域。 因而所述的多媒体光盘包括索引区,用于存储的对象的再生顺序。 在索引区的路线信息包括对象,它们的对准darstellt再现顺序的地址序列。 在索引区链控制信息对应于该路由信息。 链控制信息,是有效地再现由地址的序列的比对指定的对象(由地址的序列的比对指定的对象被称为链),指示再现装置具有链的导航控制。 一块移动具有特定TIMEPERIOD图像数据中的作为一个声频数据和一块副图象数据的相同的定时被再现。 一块的子控制信息,是有效的再现运动图像数据,副图像数据,并存储在一个小单元的音频数据指示再现装置具有存储在相同的小单元中的数据的导航控制。