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1. 发明授权

US5406535A Head seeking control apparatus with changeable speed references 失效
标题翻译：具有可变速度参考的寻头控制装置
公开(公告)号：US5406535A
公开(公告)日：1995-04-11
申请号：US31863
申请日：1993-03-16
申请人： Naobumi Seo , Hidetoshi Ikeda , Takaharu Yoshida
发明人： Naobumi Seo , Hidetoshi Ikeda , Takaharu Yoshida
IPC分类号： G11B7/085 , G11B7/09 , G11B11/10 , G11B11/105 , G11B7/00
CPC分类号： G11B7/08529 , G11B7/08541
摘要： A head control apparatus of the invention includes a moving unit for moving an optical head to a given information track on an optical disk having concentric information tracks, a detector for detecting a direction of movement of the optical head from the a signal reproduced from the optical head, and a controller that, when the detector has detected the direction of movement of the optical head, controls the moving unit so that the optical head may move to a specified information track at a first speed, and that, when the detector has not detected the direction of movement the optical head, controls the moving unit so that the optical head may move to a specified information track at a second speed slower than the first speed.
摘要翻译：本发明的头控制装置包括：移动单元，用于将光头移动到具有同心信息轨道的光盘上的给定信息轨道;检测器，用于从光学再现的信号中检测光头的移动方向头部和控制器，当检测器检测到光学头的移动方向时，控制移动单元，使得光学头可以以第一速度移动到指定的信息轨迹，并且当检测器没有检测到光头的移动方向，控制移动单元，使得光头可以以比第一速度慢的第二速度移动到指定的信息轨道。

2. 发明授权

US5361245A Optical signal processing apparatus for detecting the direction of movement of an optical reading device relative to an optical disk 失效
标题翻译：光信号处理装置，用于检测光学读取装置相对于光盘的移动方向
公开(公告)号：US5361245A
公开(公告)日：1994-11-01
申请号：US90238
申请日：1993-07-13
申请人： Takaharu Yoshida , Naobumi Seo
发明人： Takaharu Yoshida , Naobumi Seo
IPC分类号： G11B7/085 , G11B11/105
CPC分类号： G11B11/10563 , G11B7/08529 , G11B7/08541
摘要： According to this invention, an optical signal processing apparatus for an optical disk has an actuator for moving an optical head in an radial direction of the optical disk, a plurality of first photodiodes for receiving a light beam reflected by the optical disk, an addition circuit for generating a first sum signal representing a sum of signals from the first photodiodes, a polarizing beam splitter for splitting the light beam reflected by the optical disk in accordance with directions of polarization, a plurality of second photodiodes for receiving light passing through the polarizing beam splitter, a subtraction circuit for generating a difference signal representing a difference between signals from the second photodiodes, and a circuit for determining a moving direction of the optical head, using the sum signal and the difference signal during a seek operation. Since the sum signal includes no data signal component, the moving direction of a light spot during a seek operation can be accurately determined, thereby performing a reliable seek operation.
摘要翻译：根据本发明，用于光盘的光信号处理装置具有用于沿光盘的径向移动光头的致动器，用于接收由光盘反射的光束的多个第一光电二极管，加法电路用于产生表示来自第一光电二极管的信号之和的第一和信号，用于根据偏振方向分离由光盘反射的光束的偏振分束器，用于接收穿过偏振光束的光的多个第二光电二极管分路器，用于产生表示来自第二光电二极管的信号之间的差异的差信号的减法电路，以及用于在寻道操作期间使用和信号和差信号来确定光头的移动方向的电路。由于和信号不包括数据信号分量，因此可以精确地确定寻道操作期间的光斑的移动方向，从而进行可靠的寻道操作。

3. 发明授权

US5157645A Optical disk unit 失效
标题翻译：光盘单元
公开(公告)号：US5157645A
公开(公告)日：1992-10-20
申请号：US504182
申请日：1990-04-04
申请人： Tamane Takahara , Hideki Osawa , Naobumi Seo
发明人： Tamane Takahara , Hideki Osawa , Naobumi Seo
IPC分类号： G11B7/085
CPC分类号： G11B7/08529 , G11B7/08541
摘要： An optical disk unit is incidence a light spot upon an optical disk. The light spot is radially moved to cross tracks formed on the optical disk. The tracks are provided with specific access marks. The number of access marks passed by the light spot as well as the number of tracks crossed by the light spot until a change is found in a detected access mark are counted. The latter number is divided by the former number and multiplied by a coefficient to provide a speed signal indicative of a speed of the light spot relative to the optical disk.
摘要翻译：光盘单元将光点入射到光盘上。光点径向移动到形成在光盘上的十字轨道。轨道提供特定的访问标记。计数由光点通过的访问标记的数量以及在光点处交叉的轨道的数量，直到在检测到的访问标记中发现改变。后一个数除以前一个数字并乘以系数，以提供指示光点相对于光盘的速度的速度信号。

4. 发明授权

US5239530A Method and apparatus for detecting a track count in an optical disk apparatus for recording/reproducing data on/from an optical disk 失效
标题翻译：用于检测用于在/从光盘上记录/再现数据的光盘装置中的轨道计数的方法和装置
公开(公告)号：US5239530A
公开(公告)日：1993-08-24
申请号：US485570
申请日：1990-02-27
申请人： Naobumi Seo , Tamane Takahara
发明人： Naobumi Seo , Tamane Takahara
IPC分类号： G11B7/007 , G11B7/085 , G11B27/19 , G11B27/30
CPC分类号： G11B27/3027 , G11B27/19 , G11B7/00745 , G11B7/08541
摘要： An optical disk apparatus is used for an optical disk having a plurality of types of access marks repeatedly formed on the optical disk, each access mark being constituted by at least two pits. The apparatus comprises an optical head for optically reading a pattern represented by each of the access marks, a discrimination circuit for discriminating whether or not the pattern is correctly read out by the optical head, a storage for storing a pattern of access mark which is discriminated to be correct by the discrimination circuit until the discrimination circuit discriminates the next pattern of the access marks, and cross track count detector for comparing the pattern stored in the storage with the correct pattern discriminated by the discrimination circuit and for calculating the cross track count from these two patterns.
摘要翻译：光盘装置用于具有在光盘上重复形成的多种类型的访问标记的光盘，每个访问标记由至少两个凹坑构成。该装置包括用于光学读取由每个访问标记表示的图案的光学头，用于鉴别图案是否被光学头正确读出的鉴别电路，用于存储被识别的访问标记图案的存储器通过鉴别电路来校正，直到鉴别电路鉴别出接入标记的下一个模式，以及交叉轨道计数检测器，用于将存储在存储器中的模式与由鉴别电路鉴别的正确模式进行比较，并用于计算交叉轨道计数这两种模式。

5. 发明授权

US06795381B2 Multi-body multi-purpose information processing apparatus 失效
标题翻译：多体多用途信息处理装置
公开(公告)号：US06795381B2
公开(公告)日：2004-09-21
申请号：US10186655
申请日：2002-07-02
申请人： Hideo Ando , Seigo Ito , Hiromichi Kobori , Naobumi Seo , Hiroaki Unno , Hisashi Yamada , Hiroharu Satoh , Koji Maruyama
发明人： Hideo Ando , Seigo Ito , Hiromichi Kobori , Naobumi Seo , Hiroaki Unno , Hisashi Yamada , Hiroharu Satoh , Koji Maruyama
IPC分类号： G11B7085
CPC分类号： G06F1/1686 , G06F1/1618 , G06F1/1641 , G06F1/1647 , G06F1/1656 , G06F1/1679 , G06F1/169 , G06F2200/1614 , G11B19/022 , G11B19/12 , G11B19/16 , G11B20/12 , G11B20/1217 , G11B20/1254 , G11B27/034 , G11B27/036 , G11B27/105 , G11B27/329 , G11B2020/1227 , G11B2020/1229 , G11B2020/1259 , G11B2020/1265 , G11B2020/1267 , G11B2220/211 , G11B2220/216 , G11B2220/235 , G11B2220/2562 , G11B2220/2575 , G11B2220/415 , H04N5/781 , H04N5/85 , H04N9/8042
摘要： According to this invention, general addresses are given to a multi-layer information storage medium to facilitate handing of information. That is, it is possible to set generalized addresses for multiple information layers, and information indicating a condition for setting the general addresses, e.g., the contents of a disk ID zone in a rewritable zone of a lead-in area, is recorded on an information reproducing layer.
摘要翻译：根据本发明，一般地址被给予多层信息存储介质，以便于处理信息。也就是说，可以设置多个信息层的通用地址，并且将指示用于设置通用地址的条件的信息（例如，导入区域的可重写区域中的盘ID区域的内容）记录在信息再现层。

6. 发明授权

US5193081A Track-accessing controller for optical disks 失效
标题翻译：磁盘跟踪访问控制器
公开(公告)号：US5193081A
公开(公告)日：1993-03-09
申请号：US486385
申请日：1990-02-28
申请人： Hideaki Osawa , Naobumi Seo
发明人： Hideaki Osawa , Naobumi Seo
IPC分类号： G11B7/007 , G11B7/085 , G11B7/09
CPC分类号： G11B7/08541 , G11B7/00745 , G11B7/0901 , G11B7/0938
摘要： Disclosed is an optical disk apparatus applied to a data writing/reproducing operation of a sample-servo formatted optical disk having a clock pit and two wobbled pits in each of servo regions. A photodetector receives reflected light of a light beam from the optical disk to produce a reflected light signal. A clock detection unit detects a change in intensity of reflected light components from the clock pit in response to the reflected light signal to produce a binary clock pit detection signal. A tracking error detection unit detects a change in peak intensity of reflected light components from the wobbled pits in each servo region in response to the reflected light signal to produce a binary tracking error signal representing the detected intensity difference. A determination unit is connected to the clock detection unit and the tracking error detection unit. The determination unit compares a phase of a clock pit detection signal with that of a tracking error signal to determine a crossing direction of a beam spot with respect to some of the tracks on the optical disk in accordance with the comparison result of the phases.
摘要翻译：公开了一种适用于在每个伺服区域中具有时钟凹坑和两个摆动凹坑的采样伺服格式化光盘的数据写入/再现操作的光盘装置。光电检测器接收来自光盘的光束的反射光以产生反射光信号。时钟检测单元响应于反射光信号检测来自时钟凹坑的反射光分量的强度变化，以产生二进制时钟凹坑检测信号。跟踪误差检测单元响应于反射光信号检测来自每个伺服区域中的波动凹坑的反射光分量的峰值强度的变化，以产生表示检测到的强度差的二进制跟踪误差信号。确定单元连接到时钟检测单元和跟踪误差检测单元。确定单元将时钟凹坑检测信号的相位与跟踪误差信号的相位进行比较，以根据相位的比较结果确定光点相对于光盘上的一些轨道的交叉方向。

7. 发明授权

US4841502A Information recording system and reproducing for recording and reproducing information on a magneto-optical disk 失效
标题翻译：用于在磁光盘上记录和再现信息的信息记录系统和再现
公开(公告)号：US4841502A
公开(公告)日：1989-06-20
申请号：US871558
申请日：1986-06-06
申请人： Teruo Murakami , Naobumi Seo
发明人： Teruo Murakami , Naobumi Seo
IPC分类号： G11B11/105 , G11B19/02
CPC分类号： G11B19/02 , G11B11/10517 , G11B11/10595
摘要： An information recording and reproducing system for a magneto-optical disk having first and second optical systems each including at least first and second optical heads arranged in the positions displaced for example, by 1/4 sectors with each other. A single sector address control unit connected to the first and second optical heads for detecting each sector address on a disk and for controlling each access of the first and second optical means to each of desired sectors on the disk, through a magneto-optical disk control unit. The first and second optical heads are positioned at a first position, e.g., sector head position, of one sector, the second optical head is positioned at a second position, e.g., data position of the other sector, such that when either one of the first or second optical head is detecting one sector address, the other has finished in the address detection for the other sector address. In addition, the optical heads carry out an erasing operation prior to the information recording on the disk. Fast and safe recording of information becomes possible.
摘要翻译：一种用于具有第一和第二光学系统的磁光盘的信息记录和再现系统，每个光学系统至少包括第一和第二光学头，该第一和第二光学头被布置在彼此移位例如1/4扇区的位置。连接到第一和第二光学头的单个扇区地址控制单元，用于检测磁盘上的每个扇区地址，并且用于通过磁光盘控制来控制第一和第二光学装置对磁盘上每个期望扇区的访问单元。第一和第二光学头位于一个扇区的第一位置，例如扇区头位置，第二光学头位于第二位置，例如另一个扇区的数据位置，使得当任一个第一或第二光头正在检测一个扇区地址，另一个在另一个扇区地址的地址检测中已经完成。另外，在磁盘上的信息记录之前，光头执行擦除操作。可以快速，安全地记录信息。

8. 发明授权

US5329509A Optical disk unit 失效
标题翻译：光盘单元
公开(公告)号：US5329509A
公开(公告)日：1994-07-12
申请号：US915495
申请日：1992-07-17
申请人： Tamane Takahara , Hideaki Osawa , Naobumi Seo
发明人： Tamane Takahara , Hideaki Osawa , Naobumi Seo
IPC分类号： G11B7/085 , C11B7/085
CPC分类号： G11B7/08529 , G11B7/08541
摘要： An optical disk unit having a light spot incident upon an optical disk. The light spot is radially moved to cross tracks formed on the optical disk. The tracks are provided with specific access marks. The number of access marks passed by the light spot as well as the number of tracks crossed by the light spot until a change is found in a detected access mark are counted. The latter number is divided by the former number and multiplied by a coefficient to provide a speed signal indicative of a speed of the light spot relative to the optical disk.
摘要翻译：具有入射到光盘上的光斑的光盘单元。光点径向移动到形成在光盘上的十字轨道。轨道提供特定的访问标记。计数由光点通过的访问标记的数量以及在光点处交叉的轨道的数量，直到在检测到的访问标记中发现改变。后一个数除以前一个数字并乘以系数，以提供指示光点相对于光盘的速度的速度信号。

9. 发明授权

US4926408A Magneto-optic recording/erasing system with simultaneous dual head control and disk error detection 失效
标题翻译：具有同时双头控制和磁盘错误检测的磁光记录/擦除系统
公开(公告)号：US4926408A
公开(公告)日：1990-05-15
申请号：US338168
申请日：1989-04-14
申请人： Teruo Murakami , Naobumi Seo
发明人： Teruo Murakami , Naobumi Seo
IPC分类号： G11B11/105 , G11B19/02
CPC分类号： G11B11/10595 , G11B11/10517 , G11B19/02
摘要： A magneto-optic recording/erasing system uses two heads, one for writing formatted information into sectors along a track of a magneto-optical disk and a second head working simultaneously with the first head to read formatted information and detect defects. The system also writes information during formatting to indicate damaged disk track sectors and eliminate reference to them during formatting to produce a more reliable disk.
摘要翻译：磁光记录/擦除系统使用两个头，一个用于将格式化的信息写入沿着磁光盘的轨道的扇区中，另一个头与第一头同时工作以读取格式化的信息并检测缺陷。系统还在格式化期间写入信息以指示损坏的磁盘轨道扇区，并在格式化期间消除对它们的引用以产生更可靠的磁盘。

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