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1. 发明授权

US5216677A Data reproducing apparatus 失效
标题翻译：数据再现装置
公开(公告)号：US5216677A
公开(公告)日：1993-06-01
申请号：US585409
申请日：1990-09-20
申请人： Yuji Takagi , Isao Satoh , Yoshihisa Fukushima , Katsumi Murai
发明人： Yuji Takagi , Isao Satoh , Yoshihisa Fukushima , Katsumi Murai
IPC分类号： G11B20/18 , H03M13/31
CPC分类号： H03M13/31 , G11B20/1833
摘要： A data reproducing system is provided wherein data stored in an optical disk can be read and, in accordance with a coded error detection and correction code, can have an error pointer defined in synchronization with a modulated data of one symbol. This information can be transmitted, through a time division multiplexing circuit, at a faster clock speed than a demodulating clock with which the timing of a data demodulating will be controlled.
摘要翻译：提供了一种数据再现系统，其中可以读取存储在光盘中的数据，并且根据编码的错误检测和校正码可以具有与一个符号的调制数据同步地定义的错误指针。该信息可以通过时分多路复用电路以比解调时钟更快的时钟速度被发送，解调时钟将与数据解调的定时一起被控制。

2. 再颁专利

USRE39163E1 Recording defect substitution method for a disc-shaped recording medium, and a recording and reproducing apparatus for a disc-shaped recording medium 有权
标题翻译：用于盘形记录介质的记录缺陷替代方法以及用于盘形记录介质的记录和再现装置
公开(公告)号：USRE39163E1
公开(公告)日：2006-07-11
申请号：US10702057
申请日：2003-11-06
申请人： Yuji Takagi , Takahiro Nagai , Yoshihisa Fukushima , Shunji Ohara , Isao Satoh
发明人： Yuji Takagi , Takahiro Nagai , Yoshihisa Fukushima , Shunji Ohara , Isao Satoh
IPC分类号： G11B7/24
CPC分类号： G11B20/1883 , G11B20/10 , G11B20/1258 , G11B2220/20
摘要： In a recording and reproducing apparatus for a disc-shaped recording medium, and a defect substitution method for a disc-shaped recording medium (8), whether reproduction of recorded data is good is determined by sector unit and not by product code unit, defective sector discrimination is performed by sector unit, and only sectors determined defective are alternately recorded, when using a recording format in which data that is error detection and correction coded with a product code is segmented and recorded to a plurality of sectors.
摘要翻译：在盘形记录介质的记录和再现装置以及盘形记录介质（8）的缺陷替换方法中，记录数据的再现是否良好是由扇区单元而不是产品代码单元来确定的当使用其中利用产品代码进行的错误检测和校正的数据被分段并记录到多个扇区的记录格式时，扇区鉴别由扇区单元执行，并且仅仅确定有缺陷的扇区被交替地记录。

3. 发明授权

US06549499B2 Recording defect substitution method for a disc-shaped recording medium, and a recording and reproducing apparatus for a disc-shaped recording medium 有权
公开(公告)号：US06549499B2
公开(公告)日：2003-04-15
申请号：US09932988
申请日：2001-08-21
申请人： Yuji Takagi , Takahiro Nagai , Yoshihisa Fukushima , Shunji Ohara , Isao Satoh
发明人： Yuji Takagi , Takahiro Nagai , Yoshihisa Fukushima , Shunji Ohara , Isao Satoh
IPC分类号： G11B700
CPC分类号： G11B20/1883 , G11B20/10 , G11B20/1258 , G11B2220/20
摘要： In a recording and reproducing apparatus for a disc-shaped recording medium, and a defect substitution method for a disc-shaped recording medium, whether reproduction of recorded data is good is determined by sector unit and not by product code unit, defective sector discrimination is performed by sector unit, and only sectors determined defective are alternately recorded, when using a recording format in which data that is error detection and correction coded with a product code is segmented and recorded to a plurality of sectors.

4. 发明授权

US06421315B1 Multi-layered optical disk with shifted track and layer identification and method of detecting a track 失效
标题翻译：具有移动的轨道和层标识的多层光盘和检测轨道的方法
公开(公告)号：US06421315B1
公开(公告)日：2002-07-16
申请号：US09245196
申请日：1999-02-05
申请人： Isao Satoh , Yoshihisa Fukushima , Yuji Takagi , Yasushi Azumatani , Hiroshi Hamasaka
发明人： Isao Satoh , Yoshihisa Fukushima , Yuji Takagi , Yasushi Azumatani , Hiroshi Hamasaka
IPC分类号： G11B724
CPC分类号： G11B7/24038 , G11B7/00736 , G11B7/00745 , G11B7/08511 , G11B7/0908 , G11B7/0945 , G11B7/24 , G11B7/26 , G11B2007/0013
摘要： A multi-layered optical disk comprising a plurality of recording layers accumulated in the thickness direction wherein a light beam is focused on one of tracks of one of the layers thereby to record and reproduce data, the optical disk being characterized in that recording layers each have An identification section storing an address of the recording layer which the identification section belongs to.
摘要翻译：一种多层光盘，包括在厚度方向上累积的多个记录层，其中光束聚焦在一个层的一个轨道上，从而记录和再现数据，该光盘的特征在于记录层各自具有存储识别部所属的记录层的地址的识别部。

5. 发明授权

US5475668A Method of producing file management structures, information reproduction apparatus and information reproducing method 失效
标题翻译：产生文件管理结构的方法，信息再现装置和信息再现方法
公开(公告)号：US5475668A
公开(公告)日：1995-12-12
申请号：US233717
申请日：1994-04-26
申请人： Yasushi Azumatani , Isao Satoh , Yoshihisa Fukushima , Yuji Takagi , Hiroshi Hamasaka
发明人： Yasushi Azumatani , Isao Satoh , Yoshihisa Fukushima , Yuji Takagi , Hiroshi Hamasaka
IPC分类号： G06F12/00 , G06F3/06 , G11B20/12 , G11B27/00 , G11B27/10 , G11B27/32 , G11B7/00
CPC分类号： G06F3/0601 , G11B20/1262 , G11B27/105 , G11B27/329 , G06F2003/0697 , G11B2220/20 , G11B2220/2583 , Y10S707/99942
摘要： In an information recording medium, wherein data are reproduced in a sector unit, a file area for recording the file systems of a plurality of operating systems and a discrimination area for recording the position data on the file systems in the file area are provided. Then, the same data recorded in the recording medium can be managed by the operating systems of different file management systems. In a recording apparatus for reproducing data from the information recording medium, the position data are reproduced from the discrimination area and the data recorded in the information recording medium can be read by converting the position data to an actual sector address in the information recording medium. Thus, a file can by reproduced from the recording medium with either of the operating systems.
摘要翻译：在其中数据以扇区单元再现的信息记录介质中，提供用于记录多个操作系统的文件系统的文件区域和用于在文件区域中的文件系统上记录位置数据的区分区域。然后，记录在记录介质中的相同数据可以由不同文件管理系统的操作系统来管理。在用于从信息记录介质再现数据的记录装置中，从鉴别区再现位置数据，并且可以通过将位置数据转换成信息记录介质中的实际扇区地址来读取记录在信息记录介质中的数据。因此，可以通过任何操作系统从记录介质再现文件。

6. 发明授权

US5023854A Disc having a data read-only area and a data recording arm and a recording reproducing system therefor 失效
标题翻译：光盘具有数据只读区域和数据记录臂及其记录再现系统
公开(公告)号：US5023854A
公开(公告)日：1991-06-11
申请号：US353171
申请日：1989-05-17
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： G11B7/00 , G11B7/004 , G11B7/0045 , G11B7/007 , G11B7/013 , G11B7/085 , G11B7/09 , G11B7/24085 , G11B11/105 , G11B13/04 , G11B19/04 , G11B20/12 , G11B27/10 , G11B27/30
CPC分类号： G11B7/004 , G11B11/10597 , G11B13/04 , G11B19/04 , G11B20/1252 , G11B27/105 , G11B27/3027 , G11B7/0045 , G11B7/007 , G11B7/00745 , G11B7/085 , G11B7/0941 , G11B7/24085 , G11B2020/1259 , G11B2220/211 , G11B2220/2525 , G11B2220/2537
摘要： A read only type optical disc, and disc drive apparatus for reading/additionally writing data into the disc. The disc has a recording material formed in all of the tracks by which data can be additionally recorded on the disc. This optical disc has a plurality of sectors forming a data read-only area and a write/read area. 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 indicativ 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., rea-only area or write/read area. Thus, it is possible to avoid erroneous recording of data into the read-only area. Upon 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 data reading and data writing into the data write/read area can be improved.

7. 发明授权

US4964094A Optical disk 失效
标题翻译：光盘
公开(公告)号：US4964094A
公开(公告)日：1990-10-16
申请号：US217308
申请日：1988-07-11
申请人： Isao Satoh , Makoto Ichinose , Yoshihisa Fukushima , Yuzuru Kuroki , Yuji Takagi , Yasushi Azumatani
发明人： Isao Satoh , Makoto Ichinose , Yoshihisa Fukushima , Yuzuru Kuroki , Yuji Takagi , Yasushi Azumatani
IPC分类号： G11B7/013 , G11B20/12 , G11B27/30
CPC分类号： G11B7/24085 , G11B20/1217 , G11B27/3027 , G11B7/013 , G11B20/1258 , G11B2020/10888 , G11B2220/20
摘要： The present invention relates to an optical disk having a control track. The control track is divided into sectors in a manner similarly to a data track to record data and comprises a plurality of sectors. Each sector is composed of a sector identifying portion ID in which address information is recorded and a control field portion CF in which control data is recorded. The control field portion CF has the same format as the sector identifying portion ID. The control data is divided into recording data units in the control field portion CF and recorded. An identification flag is provided for each of the sector identifying portion ID and control field portion CF. The control track is searched by the address information in the sector identifying portion ID. The address data and control data are selected by use of the identifying flags in the sector identifying portion ID and control field portion CF, and they are read, then the control data are reassembled in order by using the address data of the sector identifying portion ID.

8. 发明授权

US4833663A Information recording/reproducing apparatus for handling defective sectors on an optical disk 失效
标题翻译：用于处理光盘上的缺陷扇区的信息记录/再现装置
公开(公告)号：US4833663A
公开(公告)日：1989-05-23
申请号：US3820
申请日：1987-01-16
申请人： Isao Satoh , Makoto Ichinose , Yoshihisa Fukushima , Yuzuru Kuroki , Yuji Takagi
发明人： Isao Satoh , Makoto Ichinose , Yoshihisa Fukushima , Yuzuru Kuroki , Yuji Takagi
IPC分类号： G11B19/04 , G11B27/034 , G11B27/036 , G11B27/30
CPC分类号： G11B27/30 , G11B19/04 , G11B27/036 , G11B2220/20 , G11B2220/216 , G11B27/034
摘要： Disclosed is an information recording/reproducing apparatus which uses a rewritable recording medium having a sector structure, and in which a data writing gate signal and a data erasing gate signal are reproduced on the basis of an ID detection signal of a target sector, while a data reading gate signal and a marking gate signal are produced on the basis of the ID detection signal of the target sector or on the basis of an ID detection signal of a sector located N sectors before the target one, so that when data is to be renewed in a specific sector from which no ID detection signal can be obtained, marking is performed in the specific sector on the basis of an ID detection signal of a sector located N sectors before the specific sector and new data are rewritten into a substitutive sector, whereby it is possible to perform data erasing and data recording in a target sector with high reliability and high positional accuracy and it is possible to shorten gaps respectively in front and rear of a data field to thereby make it possible to efficiently use a data area.
摘要翻译：公开了一种使用具有扇区结构的可重写记录介质的信息记录/再现装置，其中基于目标扇区的ID检测信号再现数据写入门信号和数据擦除门信号，而基于目标扇区的ID检测信号或基于在目标扇区之前的N个扇区的扇区的ID检测信号生成数据读取门信号和标记门信号，使得当数据为在特定扇区中被更新，在该特定扇区中不能获得ID检测信号，基于位于特定扇区之前的N个扇区的扇区的ID检测信号和新数据被重写为替代扇区，在特定扇区中执行标记，从而可以以高可靠性和高位置精度在目标扇区中执行数据擦除和数据记录，并且可以分别缩短前端和从而能够有效地使用数据区域。

9. 发明授权

US06496455B1 Recording defect substitution method for a disc-shaped recording medium, and a recording and reproducing apparatus for a disc-shaped recording medium 有权
公开(公告)号：US06496455B1
公开(公告)日：2002-12-17
申请号：US09598221
申请日：2000-06-21
申请人： Yuji Takagi , Takahiro Nagai , Yoshihisa Fukushima , Shunji Ohara , Isao Satoh
发明人： Yuji Takagi , Takahiro Nagai , Yoshihisa Fukushima , Shunji Ohara , Isao Satoh
IPC分类号： G11B700
CPC分类号： G11B20/1883 , G11B20/10 , G11B20/1258 , G11B2220/20
摘要： In a recording and reproducing apparatus for a disc-shaped recording medium, and a defect substitution method for a disc-shaped recording medium, whether reproduction of recorded data is good is determined by sector unit and not by product code unit, defective sector discrimination is performed by sector unit, and only sectors determined defective are alternately recorded, when using a recording format in which data that is error detection and correction coded with a product code is segmented and recorded to a plurality of sectors.

10. 发明授权

US06314078B1 Recording defect substitution method for a disc-shaped recording medium, and a recording and reproducing apparatus for a disc-shaped recording medium 有权
标题翻译：用于盘形记录介质的记录缺陷替代方法以及用于盘形记录介质的记录和再现装置
公开(公告)号：US06314078B1
公开(公告)日：2001-11-06
申请号：US09598411
申请日：2000-06-21
申请人： Yuji Takagi , Takahiro Nagai , Yoshihisa Fukushima , Shunji Ohara , Isao Satoh
发明人： Yuji Takagi , Takahiro Nagai , Yoshihisa Fukushima , Shunji Ohara , Isao Satoh
IPC分类号： G11B724
CPC分类号： G11B20/1883 , G11B20/10 , G11B20/1258 , G11B2220/20
摘要： In a recording and reproducing apparatus for a disc-shaped recording medium, and a defect substitution method for a disc-shaped recording medium (8), whether reproduction of recorded data is good is determined by sector unit and not by product code unit, defective sector discrimination is performed by sector unit, and only sectors determined defective are alternately recorded, when using a recording format in which data that is error detection and correction coded with a product code is segmented and recorded to a plurality of sectors.
摘要翻译：在盘形记录介质的记录和再现装置以及盘形记录介质（8）的缺陷替换方法中，记录数据的再现是否良好是由扇区单元而不是产品代码单元来确定的当使用其中利用产品代码进行的错误检测和校正的数据被分段并记录到多个扇区的记录格式时，扇区鉴别由扇区单元执行，并且仅仅确定有缺陷的扇区被交替地记录。

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