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：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：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：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：US4885735A

公开(公告)日：1989-12-05

申请号：US76170

申请日：1987-06-22

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：US4805046A

公开(公告)日：1989-02-14

申请号：US922399

申请日：1986-10-23

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

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

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

CPC分类号： G11B27/3027 ,  G11B20/10 ,  G11B20/12 ,  G11B2220/20 ,  G11B2220/2537

摘要： An information recording and reproducing apparatus records and reproduces information on and from an optical recording disk having a sector recording format of frame structure in which data in each sector are divided into a plurality of frames, and a data head identification mark is affixed to the head of each of the frames, so as to prevent propagation of a demodulation error due to failure of word synchronization attributable to pull-out of a PLL during data reproduction. In the apparatus, one frame pulse is generated for each of the frames on the basis of a sector identifier detection signal and a frame data demodulation start signal, and, according to the result of counting the frame pulses, the frame numbers of frame data demodulated and stored in a sector buffer memory are accurately detected. The frame pulse is generated on the basis of the sector identifier detection signal until the data head identification signal is first detected, and, once the data head identification signal is detected, the frame pulse is generated on the basis of the data demodulation start signal. Therefore, even if the data head identification signal of a frame cannot be detected resulting in dropout of data in that frame, the succeeding frame data can be stored at the assigned addresses in the sector buffer memory.

摘要翻译： 信息记录和再现装置在具有帧结构的扇区记录格式的光记录盘上记录和再现信息，其中每个扇区中的数据被分成多个帧，并且数据头识别标记被附加到头 ，以便防止在数据再现期间归因于PLL拉出的字同步失败导致的解调错误的传播。 在该装置中，基于扇区标识符检测信号和帧数据解调开始信号，针对每个帧产生一帧帧脉冲，并且根据对帧脉冲进行计数的结果，解调的帧数据的帧号 并存储在扇区缓冲存储器中。 基于扇区标识符检测信号生成帧脉冲，直到首先检测到数据头识别信号，并且一旦检测到数据头识别信号，就根据数据解调开始信号产生帧脉冲。 因此，即使不能检测到帧的数据头识别信号导致该帧中的数据丢失，可以将后续帧数据存储在扇区缓冲存储器中的分配地址处。

公开(公告)号：US5173886A

公开(公告)日：1992-12-22

申请号：US635238

申请日：1990-12-28

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

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

IPC分类号： G11B7/004 ,  G11B7/007 ,  G11B7/013 ,  G11B7/085 ,  G11B13/04 ,  G11B19/04 ,  G11B20/12 ,  G11B27/10

CPC分类号： G11B7/24085 ,  G11B13/04 ,  G11B19/04 ,  G11B20/1252 ,  G11B27/105 ,  G11B7/004 ,  G11B7/00745 ,  G11B7/085 ,  G11B2020/1259 ,  G11B2220/211 ,  G11B2220/2525 ,  G11B2220/2537

摘要： A composite read-only and rewritable type optical disc, and a disc drive apparatus for reading/writing data into the disc. The optical disc has a plurality of sectors forming a data read-only area and a write/read area. The disc includes a recording film formed over its entire surface by which data can be recorded on the disc. Each area has track sectors each having a sector identifier portion in which address information is recorded and a data field portion to record data. Data-field identification flags indicative of the read-only area and the write/read area are recorded in the respective identifier portions. On reading or writing this optical disc, the data field identification flag is detected to identify the kind of related area, i.e., whether it is a read-only area or a write/read area. Thus, it is possible to avoid erroneous recording of data into the read-only area. Upon executing a reading operation, waveform equalization and binary-clipping level of reproduction signals can be well controlled. The gain of the servo loop can be switched. The track searching operation can be stably performed. The reading and writing of data with respect to the data write/read area can be improved.

摘要翻译： 复合型只读和可重写型光盘，以及用于将数据读入/写入盘中的盘驱动装置。 光盘具有形成数据只读区域和写入/读取区域的多个扇区。 盘包括在其整个表面上形成的记录膜，通过该记录膜可以将数据记录在盘上。 每个区域具有各自具有记录地址信息的扇区标识符部分和记录数据的数据字段部分的轨道扇区。 指示只读区域和写/读区域的数据字段识别标志被记录在相应的标识符部分中。 在读取或写入该光盘时，检测数据字段识别标志以识别相关区域的种类，即它是只读区域还是写入/读取区域。 因此，可以避免将数据错误地记录到只读区域中。 在执行读取操作时，可以良好地控制再现信号的波形均衡和二进制削波电平。 可以切换伺服回路的增益。 可以稳定地进行轨道搜索操作。 可以提高对数据写入/读取区域的数据的读取和写入。

公开(公告)号：US4949326A

公开(公告)日：1990-08-14

申请号：US129141

申请日：1987-12-07

申请人： Yuji Takagi ,  Isao Satoh ,  Makoto Ichinose ,  Yoshihisa Fukushima ,  Yuzuru Kuroki ,  Yasushi Azumatani

发明人： Yuji Takagi ,  Isao Satoh ,  Makoto Ichinose ,  Yoshihisa Fukushima ,  Yuzuru Kuroki ,  Yasushi Azumatani

IPC分类号： G11B20/18

CPC分类号： G11B20/1883 ,  G11B20/1833 ,  G11B2220/20

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

摘要翻译： 在只读型光盘和具有数据记录区和备用区的写型光盘中，用于错误检测和校正的第一编码数据被记录在数据记录区中。 在只读型光盘的情况下，备用区域被用作记录第二编码数据的检查扇区。 当在数据记录区域中的扇区被再现时，通过第一误差控制装置的纠错变得不可能，第二误差控制装置通过使用对应于相关联的误差扇区的检查扇区来执行纠错。 在写入型光盘的情况下，备用区域用作替代扇区。 由缺陷扇区检测装置检测到的缺陷扇区通过由扇区交替装置的替换扇区代替地交替记录。

公开(公告)号：US4823333A

公开(公告)日：1989-04-18

申请号：US3832

申请日：1987-01-16

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

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

IPC分类号： G11B7/28 ,  G11B20/10 ,  G11B20/12 ,  G11B20/18 ,  G11B27/034

CPC分类号： G11B7/28 ,  G11B20/10 ,  G11B20/1217 ,  G11B20/1813 ,  G11B27/034 ,  G11B2220/20

摘要： An optical disk duplicating apparatus comprises reproducing means for reproducing user's data recorded on a first optical disk, adding means for adding sector data identification information indicative of the state of using sectors in recording tracks on the first optical disk to the reproduced user's data, recording means for recording the user's data on a second optical disk, and transfer means for transferring the user's data and the sector data identification information to the recording means. The optical disk duplicating apparatus determines whether each of the sectors in the first optical disk has data properly recorded therein, a defective sector identifier portion, a defective data field portion, or no signal recorded therein, by using the sector data identification information and controls a signal supplied to the recording means, thereby producing duplicated sectors in a manner such that the sectors in the first optical disk correspond respectively to the sectors in the second optical disk on the sector-to-sector basis.

摘要翻译： 一种光盘复制装置，包括用于再现记录在第一光盘上的用户数据的再现装置，用于将表示在第一光盘上的记录轨道中使用扇区的状态的扇区数据识别信息添加到再现用户数据的加法装置，记录装置 用于将用户的数据记录在第二光盘上，以及用于将用户数据和扇区数据识别信息传送到记录装置的传送装置。 光盘复制装置通过使用扇区数据识别信息来确定第一光盘中的每个扇区是否具有适当地记录在其中的数据，缺陷扇区标识符部分，缺陷数据字段部分或不记录信号，并且控制 信号提供给记录装置，从而以这样的方式产生复制扇区，使得第一光盘中的扇区分别对应于扇区到扇区的第二光盘中的扇区。

公开(公告)号：US4969139A

公开(公告)日：1990-11-06

申请号：US162971

申请日：1988-03-02

申请人： Yasushi Azumatani ,  Isao Satoh ,  Makoto Ichinose ,  Yoshihisa Fukushima ,  Yuzuru Kuroki ,  Yuji Takagi

发明人： Yasushi Azumatani ,  Isao Satoh ,  Makoto Ichinose ,  Yoshihisa Fukushima ,  Yuzuru Kuroki ,  Yuji Takagi

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

CPC分类号： G11B20/1816 ,  G11B2020/1869 ,  G11B2220/2537

摘要： The apparatus includes a one-chip microcontroller, an error flag counter and an error comparison circuit to detect whether or not an optical disk or an internal optical head of the apparatus is fouled. Test data is recorded on a self-diagnostic area of the optical disk when the optical disk loaded in the apparatus is new and has not yet been used, and initial error information detected in the test data reproduced from the self-diagnostic area is registered on an error managing area of the optical disk. When an optical disk which has already been used is loaded, error information detected in the test data recorded on and reproduced from the self-diagnostic area of the optical disk is compared with the initial error information registered in the error managing area of the optical disk. When the comparison shows that the number of data errors is greater than a predetermined reference value, the optical disk or the internal optical head is fouled to such an extent that the recording and reproducing function cannot be satisfactorily performed.