公开(公告)号：US4789979A

公开(公告)日：1988-12-06

申请号：US143261

申请日：1988-01-05

申请人： Shigehiko Hiraoka ,  Makoto Ichinose ,  Isao Satoh ,  Tatuo Sugimura

发明人： Shigehiko Hiraoka ,  Makoto Ichinose ,  Isao Satoh ,  Tatuo Sugimura

IPC分类号： G11B7/013 ,  G11B27/30 ,  G11B27/32

CPC分类号： G11B7/24085 ,  G11B27/3027 ,  G11B27/329 ,  G11B2220/20 ,  G11B2220/218

摘要： An optical disk exclusively used for reproduction has an optically detectable guide groove in which signals have previously been recorded. One type of optical disk exclusively used for reproduction is interchangeable with an optical disk which allows both recording and reproducing operations or enables information recorded thereon to be erased. If such an optical disk is not provided with a guide groove in an unrecorded region remaining between a data managing information region and a data recording region, problems may arise when the optical head of an optical disk apparatus is positioned in the unrecorded region at the time of starting the operation of the apparatus and when the optical head effects retrieval between the data managing information region and the data recording region. Therefore, the unrecorded region is cut by employing a method which is different from the method of cutting the data managing information region and the data recording region, thereby eliminating the above-described problems, allowing the recorded information to be read out at an increased speed and enabling a master disk for optical disks to be cut at high efficiency.

摘要翻译： 专门用于再现的光盘具有可以预先记录信号的光学检测导向槽。 专门用于再现的一种类型的光盘与允许记录和再现操作两者或允许其上记录的信息被擦除的光盘是可互换的。 如果这样的光盘在数据管理信息区域和数据记录区域之间的未记录区域中没有设置引导槽，则当光盘装置的光头位于未记录区域时，可能会出现问题 并且当光头影响数据管理信息区域和数据记录区域之间的检索时。 因此，通过采用与切割数据管理信息区域和数据记录区域的方法不同的方法来切割未记录区域，从而消除上述问题，允许以增加的速度读出记录的信息 并且能够以高效率切割用于光盘的主盘。

公开(公告)号：US4653051A

公开(公告)日：1987-03-24

申请号：US649718

申请日：1984-09-12

申请人： Tatuo Sugimura ,  Isao Satoh ,  Makoto Ichinose ,  Yuzuru Kuroki

发明人： Tatuo Sugimura ,  Isao Satoh ,  Makoto Ichinose ,  Yuzuru Kuroki

IPC分类号： G11B20/18 ,  H03M13/29 ,  G06F11/10

CPC分类号： H03M13/29 ,  G11B20/1833

摘要： Apparatus for detecting and correcting errors on product codes, utilizing a product code of minimum distance 2t symbols constituted by two codes having minimum distance 2 and minimum distance t respectively. First the code of minimum distance t is decoded, and secondly error number flags generated in the decoding operation are classified into three decoding modes by statistical processing. Errors are detected or corrected according to the decoding mode.

摘要翻译： 用于检测和校正产品代码上的错误的装置，利用由具有最小距离2和最小距离t的两个代码构成的最小距离2t符号的乘积码。 首先解码最小距离t的代码，其次在解码操作中产生的错误号标志通过统计处理分为三种解码模式。 根据解码模式检测或校正错误。

公开(公告)号：US4768181A

公开(公告)日：1988-08-30

申请号：US673620

申请日：1984-11-21

申请人： Makoto Ichinose ,  Isao Satoh ,  Tatuo Sugimura ,  Yuzuru Kuroki

发明人： Makoto Ichinose ,  Isao Satoh ,  Tatuo Sugimura ,  Yuzuru Kuroki

IPC分类号： G11B7/08 ,  G11B7/004 ,  G11B7/013 ,  G11B20/12 ,  G11B20/18 ,  G11B7/00

CPC分类号： G11B20/1883 ,  G11B20/1217 ,  G11B7/004 ,  G11B7/013 ,  G11B2220/20 ,  G11B2220/2537

摘要： An optical information recording and reproducing apparatus for recording and reproducing information on and from an optical recording disk having an optically detectable guide track divided into a plurality of sectors is disclosed. When a sector to or from which a data is to be recorded or reproduced is a defective sector or a non-use sector because of updating, a special pattern signal is recorded on the defective sector or the non-use sector, and if the recorded special pattern signal is detected in the reproduction cycle, that sector is determined as a defective or non-use sector and recording or reproducing on or from that sector is inhibited.

摘要翻译： 公开了一种光信息记录和再现装置，用于在具有划分成多个扇区的光学可检测导轨的光记录盘上记录和再现信息。 当由于更新要进行数据被记录或再现的扇区是缺陷扇区或不使用扇区时，特殊模式信号被记录在缺陷扇区或不使用扇区上，并且如果记录 在再现周期中检测到特殊图案信号，该扇区被确定为有缺陷或非使用扇区，并且禁止在该扇区上或从该扇区进行记录或再现。

公开(公告)号：US4742507A

公开(公告)日：1988-05-03

申请号：US819261

申请日：1986-01-16

申请人： Yuzuru Kuroki ,  Isao Satoh ,  Makoto Ichinose ,  Tatuo Sugimura

发明人： Yuzuru Kuroki ,  Isao Satoh ,  Makoto Ichinose ,  Tatuo Sugimura

IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/007 ,  G11B7/085 ,  G11B20/18 ,  G11B27/034 ,  G11B27/10

CPC分类号： G11B20/1883 ,  G11B27/034 ,  G11B27/105 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/00745 ,  G11B2220/20 ,  G11B2220/218

摘要： An optical information recording and reproducing apparatus for recording and reproducing information from an optical recording disc including an optically detectable guide track preliminarily divided into a plurality of sectors. In the case of an unerasable disc, if an uncorrectable error exists in any sector after data has been recorded and reproduced from the sector, it is necessary to process this sector so as to prevent further reproduction an again record the data in another sector. Also, when updating a part of the data or erasing the file, it is desirable to take a measure so that reproduction of the data in any unwanted sector is prevented. Also, in the case of any unrecorded sector involving such dropout that the recording of data is presumed to cause an uncorrectable error, it is desirable to handle it as a defective sector and process it so as to prevent the recording of data therein. In such a case, it is desirable to effect the similar process also in the case of an erasable disc. A conceivable method of making such defective or unwanted sector distinguishable at a later time is to write in its information recording area a signal having a special pattern indicative of the defective or unwanted sector. In accordance with the invention, the reliability of special signal detection is increased by writing the special signal again when it is impossible to detect the special signal due to the occurrence of a track jump prior to or during the writing of the special signal, due to the occurrence of dropouts or the like.

摘要翻译： 一种光学信息记录和再现装置，用于从包括预先划分成多个扇区的光学检测导轨的光学记录盘记录和再现信息。 在不可擦除盘的情况下，如果从扇区记录和再现数据之后在任何扇区中存在不可纠正的错误，则需要处理该扇区以防止进一步再现再次将数据记录在另一个扇区中。 此外，当更新数据的一部分或擦除文件时，期望采取措施以防止任何不想要的扇区中的数据的再现。 此外，在涉及到数据的记录被认为引起不可校正的错误的任何未记录的扇区的情况下，期望将其作为缺陷扇区来处理，并且处理它以便防止在其中记录数据。 在这种情况下，也可以在可擦除盘的情况下进行类似的处理。 使这种有缺陷或不想要的扇区在稍后时间可区分的可想到的方法是在其信息记录区域中写入具有指示有缺陷或不需要的扇区的特殊模式的信号。 根据本发明，由于在特殊信号的写入之前或期间由于轨道跳跃的发生而不可能检测到特殊信号，所以通过再次写入特殊信号来提高特殊信号检测的可靠性，由于 出现辍学等。

公开(公告)号：US4841498A

公开(公告)日：1989-06-20

申请号：US710216

申请日：1985-03-11

申请人： Tatuo Sugimura ,  Isao Satoh ,  Yoshihiko Imai ,  Makoto Ichinose

发明人： Tatuo Sugimura ,  Isao Satoh ,  Yoshihiko Imai ,  Makoto Ichinose

IPC分类号： G11B20/18

CPC分类号： G11B20/1883

摘要： An information recording and reproducing apparatus for recording information on the recording medium and reproducing the information from the recording medium has a data recording region of a sector structure in which the region is divided into a plurality of sectors. There are provided means for designating alternate sector to be used in place of a defective sector and means for adding to data a logical address of a sector where the data is to be recorded. Reproduction from the sector where the desired data is recorded can be accomplished by using only a physical address without being influenced by difference between the physical address and the logical address brought about by the occurrence of the defective sector.

摘要翻译： 用于在记录介质上记录信息并从记录介质再现信息的信息记录和再现装置具有区域结构的数据记录区域，其中区域被划分成多个扇区。 提供了用于指定要用于代替缺陷扇区的替代扇区的装置，以及用于向数据添加要记录数据的扇区的逻辑地址的装置。 可以通过仅使用物理地址而不受物理地址和由缺陷扇区的发生引起的逻辑地址之间的差异的影响来实现从记录期望数据的扇区的再现。

公开(公告)号：US4630140A

公开(公告)日：1986-12-16

申请号：US597232

申请日：1984-04-05

申请人： Tatuo Sugimura ,  Isao Satoh ,  Makoto Ichinose ,  Yuzuru Kuroki

发明人： Tatuo Sugimura ,  Isao Satoh ,  Makoto Ichinose ,  Yuzuru Kuroki

IPC分类号： G11B20/12 ,  G11B20/18 ,  G11B27/10 ,  G11B27/30 ,  G11B5/09

CPC分类号： G11B27/30 ,  G11B20/1217 ,  G11B20/18 ,  G11B27/105

摘要： A data recording/reproducing apparatus which uses a recording medium having a data recording area divided into a plurality of sectors, each sector having an address section in which a first address signal is recorded and a data recording section, wherein a second address signal is added to data to be recorded, the second address signal representing an address of a sector in which the data is to be recorded, the data combined with the second address signal is encoded for error compensation and is recorded in the recording mode, and the second address signal reproduced with the data from the data recording section in the reproduction mode is used to discriminate an address of a target sector for reproduction. The sector address is obtained with the same level of precision as that of the reproduced data, thereby performing precise sector control and preventing data loss.

摘要翻译： 一种数据记录/再现装置，其使用具有划分为多​​个扇区的数据记录区域的记录介质，每个扇区具有其中记录有第一地址信号的地址部分和数据记录部分，其中添加第二地址信号 对要记录的数据，表示其中要记录数据的扇区的地址的第二地址信号，与第二地址信号组合的数据被编码用于误差补偿，并被记录在记录模式中，并且第二地址 在再现模式下利用来自数据记录部分的数据再现的信号用于区分目标扇区的地址以便再现。 以与再现数据相同的精度获得扇区地址，从而执行精确的扇区控制并防止数据丢失。