公开(公告)号：US5214635A

公开(公告)日：1993-05-25

申请号：US837082

申请日：1992-02-14

申请人： Isao Satoh ,  Makoto Ichinose ,  Yoshihisa Fukushima ,  Yuzuru Kuroki

发明人： Isao Satoh ,  Makoto Ichinose ,  Yoshihisa Fukushima ,  Yuzuru Kuroki

IPC分类号： G11B7/013 ,  G11B7/125 ,  G11B27/19 ,  G11B27/30

CPC分类号： G11B7/126 ,  G11B27/19 ,  G11B27/3027 ,  G11B7/24085

摘要： This invention provides an erasable optical disk, on which information is recorded and reproduced repeatedly through the irradiation of laser beams, and an optical information recording/reproduction apparatus which records and reproduces information on the erasable optical disk. In erasing and then recording information on the erasable optical disk by using an erasing laser beam and a recording/reproduction laser beam, respectively, the tracking of both laser beams on the same track is detected so as to prevent erroneous erasing. The apparatus uses the optical disk having a mark signal disposed between a sector identifier and a data field, which mark signal is capable of determining the presence of the erasing laser beam on an adjacent track on the erasable optical disk, and the apparatus reproduces and detects the mark signal by using the erasing laser beam. The apparatus discriminates the position of the erasing laser beam depending on whether the mark signal has been detected or not, thereby preventing erroneous erasing of data on the adjacent track and simultaneously assuring the presence of the erasing laser beam on the same track along with the recording/reproduction laser beam.

摘要翻译： 本发明提供了一种可擦除光盘，其上通过激光束的照射重复地记录和再现信息，以及在可擦除光盘上记录和再现信息的光信息记录/再现设备。 在擦除然后通过使用擦除激光束和记录/再现激光束在可擦除光盘上记录信息时，检测同一轨道上的两个激光束的跟踪，以防止错误擦除。 该装置使用具有布置在扇区标识符和数据场之间的标记信号的光盘，该标记信号能够确定擦除激光束在可擦除光盘上的相邻轨道上的存在，并且该装置再现和检测 通过使用擦除激光束的标记信号。 该装置根据是否检测到标记信号来鉴别擦除激光束的位置，从而防止在相邻轨道上错误地擦除数据，并同时确保擦除激光束与同一轨道上的存在以及记录 /再现激光束。

公开(公告)号：US4799208A

公开(公告)日：1989-01-17

申请号：US915576

申请日：1986-10-03

申请人： Isao Satoh ,  Makoto Ichinose ,  Yoshihisa Fukushima ,  Yuzuru Kuroki ,  Yuuji Takagi

发明人： Isao Satoh ,  Makoto Ichinose ,  Yoshihisa Fukushima ,  Yuzuru Kuroki ,  Yuuji Takagi

IPC分类号： G11B7/00 ,  G11B7/0055 ,  G11B7/006 ,  G11B7/125 ,  G11B7/30

CPC分类号： G11B7/126 ,  G11B7/006

摘要： A data recording and reproducing apparatus is disclosed in which an optical disc for recording, reproducing or erasing data is radiated with an erasing light beam and a recording-reproducing light beam 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： 公开了一种数据记录和再现装置，其中用于记录，再现或擦除数据的光盘依次用擦除光束和记录再现光束照射，以用记录 - 再现光束记录或再现数据并擦除 数据与擦除光束。 在重写数据时，擦除光束在记录再现光束之前在盘的数据部分上被辐射，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。

公开(公告)号：US4879704A

公开(公告)日：1989-11-07

申请号：US74291

申请日：1987-07-16

申请人： Yuuji Takagi ,  Isao Satoh ,  Makoto Ichinose ,  Yoshihisa Fukushima ,  Yuzuru Kuroki

发明人： Yuuji Takagi ,  Isao Satoh ,  Makoto Ichinose ,  Yoshihisa Fukushima ,  Yuzuru Kuroki

IPC分类号： G06F3/06 ,  G06F1/00 ,  G06F3/08 ,  G06F12/14 ,  G06F21/22 ,  G06F21/24 ,  G11B7/007 ,  G11B7/28 ,  G11B20/00 ,  G11B20/10

CPC分类号： G11B20/00702 ,  G11B20/00086 ,  G11B7/00745 ,  G06F2211/007

摘要： In an optical disk system of the type including an optical disk for performing the recording and reproduction of data by use of a semiconductor laser and an optical disk recording and reproducing apparatus, an optical disk, optical disk recording and reproducing apparatus and copy preventive method for optical disks capable of preventing copying of the stored data from one optical disk on another. Irrespective of the kinds of optical disks, such as, read only-type optical disk, DRAW-type optical disk and erasable optical disk, each of the optical disks is provided in common with sectors from which data can be reproduced but not recorded on, i.e., data record-protected sectors and at least part of the stored data is stored in the record-protected sectors of the optical disk, thereby protecting the stored data from being recorded on the same address sectors of another recordable optical disk forming a part of the optical disk system.

摘要翻译： 在包括用于通过使用半导体激光器和光盘记录和再现装置执行数据的记录和再现的光盘的类型的光盘系统中，一种光盘，光盘记录和再现装置以及防复制方​​法 能够防止将存储的数据从另一个光盘复制的光盘。 无论像只读型光盘，DRAW型光盘和可擦除光盘这样的光盘的种类如何，每个光盘与可再现数据而不被记录在其上的扇区相同， 即数据记录保护的扇区和至少部分存储的数据被存储在光盘的记录保护的扇区中，从而保护所存储的数据不被记录在另一可记录光盘的相同地址扇区上，形成一部分 光盘系统。

公开(公告)号：US5359584A

公开(公告)日：1994-10-25

申请号：US451747

申请日：1989-12-18

申请人： Yoshihisa Fukushima ,  Isao Satoh ,  Yuzuru Kuroki ,  Tamotsu Matsuo

发明人： Yoshihisa Fukushima ,  Isao Satoh ,  Yuzuru Kuroki ,  Tamotsu Matsuo

IPC分类号： G11B19/12 ,  G11B20/12 ,  G11B27/10 ,  G11B27/30 ,  G11B5/09

CPC分类号： G11B19/12 ,  G11B20/1217 ,  G11B27/105 ,  G11B27/3027

摘要： In recording data on a disk-shaped information recording medium having formed thereon a plurality of concentric or spiral tracks each being divided into a plurality of sectors each having an ID field and a data field, a data mark is selected from a plurality of distinct data marks according to an address of a target sector such that the selected data mark is different from a data mark recorded in an adjacent sector which is contained in an adjacent track. The selected data mark is recorded at the start position of the data field of the target sector. In reproducing the recorded data, a data mark is selected from the plurality of distinct data marks according to an address of a target sector, and is compared with a data mark reproduced from the target sector to detect whether the reproduced data mark coincides with the selected data mark. Sector data in the target sector is reproduced only when the reproduced data mark coincides with the selected data mark.

摘要翻译： 在其上形成有多个同心或螺旋形轨道的盘形信息记录介质上记录数据，每个同心或螺旋轨道被分成多个扇区，每个扇区各具有ID字段和数据字段，数据标记从多个不同数据中选择 根据目标扇区的地址进行标记，使得所选择的数据标记与记录在相邻轨道中包含的相邻扇区中的数据标记不同。 所选数据标记被记录在目标扇区的数据字段的起始位置。 在再现所记录的数据时，根据目标扇区的地址从多个不同的数据标记中选择数据标记，并与从目标扇区再现的数据标记进行比较，以检测再现的数据标记是否与所选的 数据标记。 目标扇区中的扇区数据仅在再现的数据标记与选择的数据标记一致时再现。

公开(公告)号：US5313612A

公开(公告)日：1994-05-17

申请号：US22418

申请日：1993-02-16

申请人： Isao Satoh ,  Yoshihisa Fukushima

发明人： Isao Satoh ,  Yoshihisa Fukushima

IPC分类号： G06F3/06 ,  G06F3/08 ,  G06F11/14 ,  G06F12/08 ,  G11B7/00 ,  G11B7/0037 ,  G11B7/004 ,  G11B20/10 ,  G06F12/16 ,  G06F11/20

CPC分类号： G11B7/0037 ,  G06F11/14 ,  G06F12/0804 ,  G06F12/0866

摘要： An information recording and reproducing apparatus has a plurality of optical disk drives including a data optical disk drive for storing data, a work or backup optical disk drive for temporarily storing the data and, preferably, a disk cache memory. The optical disk drives are coupled to a host device such as a central processing unit (CPU) through an optical disk control unit for controlling recording and reproduction of the data. The optical disk control unit writes commands and data transmitted from the host device into the work optical disk drive and the disk cache memory and, if required, writes the data of the disk cache memory into the data optical disk drive. The optical disk control unit, on activation of the apparatus following a malfunction, restores the data of the data optical disk drive to the most recent state thereof by using the contents of the work optical disk drive, whereby the number of times of writing to an optical disk is decreased by using the disk cache memory so as to prevent the data loss on occurrence of problems in functioning of the apparatus, such as power failure or hardware error.

摘要翻译： 信息记录和再现装置具有多个光盘驱动器，包括用于存储数据的数据光盘驱动器，用于临时存储数据的工作或备用光盘驱动器，优选地，磁盘高速缓冲存储器。 光盘驱动器通过用于控制数据的记录和再现的光盘控制单元耦合到诸如中央处理单元（CPU）的主机设备。 光盘控制单元将从主机设备发送的命令和数据写入到工作光盘驱动器和磁盘高速缓冲存储器中，并且如果需要，将盘缓存存储器的数据写入数据光盘驱动器。 光盘控制单元在故障之后激活装置，通过使用工作光盘驱动器的内容将数据光盘驱动器的数据恢复到其最新状态，由此写入到 通过使用磁盘高速缓冲存储器来减少光盘，从而防止在电源故障或硬件错误等装置发生问题时发生数据丢失。

公开(公告)号：US4986668A

公开(公告)日：1991-01-22

申请号：US416834

申请日：1989-10-03

申请人： Yoshihisa Fukushima ,  Isao Satoh ,  Makoto Ichinose ,  Yuzuru Kuroki ,  Yuuji Takagi

发明人： Yoshihisa Fukushima ,  Isao Satoh ,  Makoto Ichinose ,  Yuzuru Kuroki ,  Yuuji Takagi

IPC分类号： G11B20/12 ,  G11B7/00 ,  G11B7/004 ,  G11B7/0055 ,  G11B20/18

CPC分类号： G11B20/1883 ,  G11B2220/20

摘要： An information recording and reproducing apparatus for recording and reproducing information on and from a disk type information recording medium, wherein the information recording medium is used in which normal sectors (S1, Sn) each having an address formatted on an address area 12 in a sector ID field 9 and an alternative sector R1 having an address not yet recorded thereon are included on a same track. When a defective sector S3 is detected, first, the address of the defective sector is disabled to be reproduced by recording a delete signal 109 on the address area 12 of the defective sector S3, and at the same time, the address of the defective sector is recorded on an address area 13 in the unused alternative sector R1 located on the same track as the defective sector S3, and then, the data to be recorded on the defective sector is recorded within the alternative sector R1. Owing to such an operation for using an alternative sector, the alternative sector having the same address and data as the defective sector is formed on the same track as the defective sector. As a result, an information recording and reproducing apparatus which enables to access the alternative sector without an additional seek operation at the time of reproduction is provided.

公开(公告)号：US4939713A

公开(公告)日：1990-07-03

申请号：US159743

申请日：1988-02-24

申请人： Isao Satoh ,  Makoto Ichinose ,  Yoshihisa Fukushima ,  Yuzuru Kuroki

发明人： Isao Satoh ,  Makoto Ichinose ,  Yoshihisa Fukushima ,  Yuzuru Kuroki

IPC分类号： G11B7/013 ,  G11B7/125 ,  G11B27/19 ,  G11B27/30

CPC分类号： G11B7/126 ,  G11B27/19 ,  G11B27/3027 ,  G11B7/24085

摘要： This invention provides an erasable optical disk, on which information is recorded and reproduced repeatedly through the irradiation of laser beams, and an optical information recording/reproduction apparatus which records and reproduces information on the erasable optical disk. In erasing and then recording information on the erasable optical disk by using an erasing laser beam and a recording/reproduction laser beam, respectively, the tracking of both laser beams on the same track is detected so as to prevent erroneous erasing. The apparatus uses the optical disk having a mark signal disposed between a sector identifier and a data field, which mark signal is capable of determining the presence of the erasing laser beam on an adjacent track on the erasable optical disk, and the apparatus reproduces and detects the mark signal by using the erasing laser beam. The apparatus discriminates the position of the erasing laser beam depending on whether the mark signal has been detected or not, thereby preventing erroneous erasing of data on the adjacent track and simultaneously assuring the presence of the erasing laser beam on the same track along with the recording/reproduction laser beam.

公开(公告)号：US4789911A

公开(公告)日：1988-12-06

申请号：US49306

申请日：1987-05-13

申请人： Yoshihisa Fukushima ,  Isao Satoh ,  Makoto Ichinose ,  Yuzuru Kuroki ,  Yuuji Takagi

发明人： Yoshihisa Fukushima ,  Isao Satoh ,  Makoto Ichinose ,  Yuzuru Kuroki ,  Yuuji Takagi

IPC分类号： G11B20/10 ,  G11B20/12 ,  G11B20/18 ,  G11B27/30 ,  G11B5/55

CPC分类号： G11B27/3027 ,  G11B20/12 ,  G11B20/18 ,  G11B2220/20

摘要： In an information and recording and reproducing apparatus using a disc-shaped information recording medium having a plurality of recording tracks, each of which recording tracks is divided into a plurality of sectors, to record and reproduce information on and from the information recording medium on a sector-by-sector basis, when a target sector is detected to be a defective sector whose address can not be reproduced, in the first place, a reference sector, which is positioned preceding the defective target sector and whose address can be reproduced, is detected. Then, a rotational latency time from the detected reference sector to the defective target sector is measured by using:a time measuring circuit for measuring the rotational latency time per se; ora counter circuit for counting the number of a sector mark or sector marks which indicate the presence of an associated sector or sectors and which are detected during the rotational latency time,so that the defective target sector may be taken to be a normally detected target sector whereby information may be recorded and reproduced on and from the defective target sector, thereby making it possible to perform recording and reproduction of information on and from a defective sector whose address can not be reproduced.

摘要翻译： 在使用具有多个记录磁道的盘形信息记录介质的信息和记录和再现装置中，每个记录磁道被划分成多个扇区，以便在信息记录介质上记录和再现信息 当目标扇区被检测为不能再现其地址的缺陷扇区时，首先，位于缺陷目标扇区之前并且其地址可被再现的参考扇区是逐扇区的 检测到。 然后，通过以下方式测量从检测到的参考扇区到缺陷目标扇区的旋转等待时间：用于测量旋转等待时间本身的时间测量电路; 或用于计数表示相关扇区或扇区的存在并且在旋转等待时间期间被检测到的扇区标记或扇区标记的数量的计数器电路，使得有缺陷的目标扇区可以被认为是正常检测的目标 扇区，从而可以在有缺陷的目标扇区上记录和再现信息，从而使得可以在不能再现其地址的缺陷扇区上执行信息的记录和再现。

公开(公告)号：US5862112A

公开(公告)日：1999-01-19

申请号：US94339

申请日：1998-06-09

申请人： Takahiro Nagai ,  Isao Satoh ,  Yuji Takagi ,  Yuji Hisakado ,  Yoshito Aoki ,  Shunji Ohara ,  Takashi Ishida

发明人： Takahiro Nagai ,  Isao Satoh ,  Yuji Takagi ,  Yuji Hisakado ,  Yoshito Aoki ,  Shunji Ohara ,  Takashi Ishida

IPC分类号： G11B7/005 ,  G11B7/007 ,  G11B7/09 ,  G11B20/10 ,  G11B27/19 ,  G11B27/30 ,  G11B7/00

CPC分类号： G11B20/10009 ,  G11B27/19 ,  G11B27/3027 ,  G11B7/005 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0904 ,  G11B2220/20

摘要： An optical disk according to the present invention includes a first track having a spiral shape and a second track having a spiral shape, the first track and the second track adjoining each other, and information being recorded on or reproduced from the first track and the second track. The optical disk further includes an address region including: a first address block formed so as to be on both the first track and the second track adjoining the first track on an inner periphery side; and a second address block formed so as to be on both the first track and the second track adjoining the first track on an outer periphery side.

摘要翻译： 根据本发明的光盘包括具有螺旋形状的第一轨道和具有螺旋形状的第二轨道，第一轨道和第二轨道彼此相邻，并且信息被记录在第一轨道上，或者从第一轨道和第二轨迹再现 跟踪。 光盘还包括地址区，包括：第一地址块，形成为在内周侧上与第一轨道相邻的第一轨道和第二轨道; 以及形成为在外周侧上与第一轨道相邻的第一轨道和第二轨道上形成的第二地址块。

公开(公告)号：US5388105A

公开(公告)日：1995-02-07

申请号：US980438

申请日：1992-11-23

申请人： Yuji Takagi ,  Isao Satoh ,  Yuzuru Kuroki

发明人： Yuji Takagi ,  Isao Satoh ,  Yuzuru Kuroki

IPC分类号： G11B20/12 ,  G11B7/00 ,  G11B7/24 ,  G11B7/30 ,  G11B20/18 ,  H03M13/00 ,  G06F11/10

CPC分类号： G11B20/1833 ,  H03M13/00

摘要： A method of recording and reproducing data on and from a rewritable optical disk used for recording/reproduction of data on a sector by sector basis. A dummy block or a parity subject to error detection and correction coding is additionally recorded at the rear of a data block on a sector. A defect caused by deterioration due to reiterative operation at the trail of the sector can be prevented from reaching the data block and data can be reproduced with high reliability.

摘要翻译： 一种用于在逐个记录/再现数据的可重写光盘上记录和再现数据的方法。 经过错误检测和校正编码的虚拟块或奇偶校验被附加地记录在扇区上的数据块的后部。 可以防止由于在扇区的轨迹处的重复操作引起的劣化而导致的缺陷达到数据块，并且可以高可靠性再现数据。