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21. 发明授权

US4888751A Image information processing apparatus 失效
标题翻译：图像信息处理装置
公开(公告)号：US4888751A
公开(公告)日：1989-12-19
申请号：US240447
申请日：1988-09-02
申请人： Tomohisa Yoshimaru , Seinosuke Kajitani
发明人： Tomohisa Yoshimaru , Seinosuke Kajitani
IPC分类号： G11B7/0037 , G11B7/08 , G11B7/085 , G11B17/02 , G11B17/30 , G11B19/20 , G11B27/00
CPC分类号： G11B19/20 , G11B17/021 , G11B17/30 , G11B27/002 , G11B7/0037 , G11B7/08 , G11B7/08576 , G11B2220/20
摘要： An image information processing apparatus comprises a rotational shaft for supporting five optical disks, subjected to read or write access, at predetermined intervals along its central axis, and two optical units, each having an optical head rotatable through 180 degrees to allow scanning of positions separated by 180 degrees. The optical heads are moved along the central axis of the rotatable shaft and in a radial direction of the optical disk between a scanning position where the optical disk can be scanned, and into a non-scanning position where the optical disk cannot be scanned. Thus the optical heads are moved to face different positions on the same optical disk or different optical disks.
摘要翻译：图像信息处理装置包括：旋转轴，用于支撑沿其中心轴以预定间隔进行读或写访问的五个光盘;以及两个光学单元，每个光学单元具有可旋转180度的光学头，以允许扫描分离的位置 180度。光头沿着可旋转轴的中心轴线并且在光盘的扫描位置可以扫描的光盘的径向方向上移动到光盘不能被扫描的非扫描位置。因此，光头被移动到同一光盘或不同光盘上的不同位置。

22. 发明授权

US4394696A Apparatus for positioning magnetic head to position corresponding to reference track on magnetic tape 失效
标题翻译：用于将磁头定位在与磁带上的参考轨道对应的位置的装置
公开(公告)号：US4394696A
公开(公告)日：1983-07-19
申请号：US248288
申请日：1981-03-27
申请人： Tomohisa Yoshimaru
发明人： Tomohisa Yoshimaru
IPC分类号： G11B5/49 , G11B5/55 , G11B21/08 , G11B17/00
CPC分类号： G11B5/5508 , G11B5/5504
摘要： Apparatus for positioning a magnetic head at a position corresponding to a reference track for use in a magnetic tape apparatus, in which the magnetic head is moved by a stepper motor in a direction perpendicular to the running direction of a magnetic tape formed with a plurality of data tracks. A detector such as a microswitch for detecting the arrival of the magnetic head at the neighborhood of a position corresponding to the reference track is provided. A control circuit stops the stepper motor for stopping the magnetic head at the reference position in response to the excitation of a previously selected phase winding of the stepper motor after detection of the arrival of the magnetic head at the neighborhood of the position corresponding to the reference track by the detector.
摘要翻译：用于将磁头定位在与用于磁带装置的参考轨道相对应的位置处的磁头，其中磁头通过步进电机沿垂直于形成有多个磁带的磁带的运行方向的方向移动数据轨提供了诸如微型开关的检测器，用于检测磁头到达与参考轨道相对应的位置附近的到来。控制电路在检测到磁头到达与参考相对应的位置附近时响应于先前选择的步进电动机的相绕组的激励而停止步进电动机停止在参考位置处的磁头跟踪由检测器。

23. 发明授权

US4357638A Index information recording method for picture information filing system 失效
标题翻译：图像信息归档系统的索引信息记录方法
公开(公告)号：US4357638A
公开(公告)日：1982-11-02
申请号：US198468
申请日：1980-10-20
申请人： Tomohisa Yoshimaru , Kazuhiko Iida
发明人： Tomohisa Yoshimaru , Kazuhiko Iida
IPC分类号： G11B27/00 , G06K17/00 , G11B15/00 , G11B15/70 , G11B27/32 , H04N1/21
CPC分类号： H04N1/2175 , G06K17/0019 , G11B15/005 , G11B15/70 , G11B27/328
摘要： In a picture information filing system using an endless magnetic tape (43), which has a plurality of picture information recording tracks (48.sub.2) for a plurality of units of recording two-dimensional picture information (3) in predetermined blocks and an index information recording track (48.sub.1) for recording index information for the individual unit picture information, the index information is temporarily stored in a random access memory (13) as unit index information groups each consisting of a predetermined number of index information items, recording start index information consisting of a peculiar code and an address representing the position from which to record the next picture information is added to the last index information item in the last index information group, and the individual index information groups are recorded in predetermined blocks of the index information recording track, each index information group in each particular block.
摘要翻译：在使用无限磁带（43）的图像信息归档系统中，其具有用于在预定块中记录二维图像信息（3）的多个单元的多个图像信息记录轨道（482）和索引信息记录轨道（481），用于记录各个单位图像信息的索引信息，索引信息临时存储在随机存取存储器（13）中作为单位索引信息组，每个索引信息组由预定数量的索引信息项组成，记录开始索引信息组成的特征码和表示记录下一图像信息的位置的地址被添加到最后索引信息组中的最后索引信息项，并且各个索引信息组被记录在索引信息记录轨道的预定块中，每个特定块中的每个索引信息组。

24. 发明授权

US5469417A Information recording/reproducing apparatus for recording or reproducing data, and clock generating circuit incorporated therein 失效
标题翻译：用于记录或再现数据的信息记录/再现装置，以及并入其中的时钟发生电路
公开(公告)号：US5469417A
公开(公告)日：1995-11-21
申请号：US214217
申请日：1994-03-17
申请人： Koki Tanoue , Tsuneshi Yokota , Tomohisa Yoshimaru
发明人： Koki Tanoue , Tsuneshi Yokota , Tomohisa Yoshimaru
IPC分类号： G11B20/12 , G11B7/0045 , G11B7/005 , G11B19/28 , G11B20/14 , G11B27/19 , G11B27/30 , H03L7/087 , H03L7/191 , G11B7/00
CPC分类号： H03L7/191 , G11B20/1403 , G11B27/19 , G11B27/3027 , G11B7/0045 , G11B7/005 , H03L7/087 , G11B20/1258 , G11B2220/20
摘要： An optical disk apparatus records data on an optical disk or reproduces data therefrom. The optical disk has a plurality of zones each including a plurality of tracks, and the optical disk apparatus records or reproduces data with respect to the zones on the basis of clock signals having different frequencies. The optical disk apparatus comprises first and second phase comparators. The first phase comparator is a pull-in type and outputs a signal corresponding to the phase difference between a clock signal generated by a PLL circuit and a binary signal of reproduction data. The second phase comparator is a lock-in type and outputs a signal corresponding to the phase difference between a signal obtained by frequency-dividing the clock signal generated by the PLL circuit and a signal obtained by frequency-dividing a fundamental clock signal. When data is to be recorded or when the timings at which the PLL circuit outputs clock signals are not appropriate, the clock signals of the PLL circuit are processed by a voltage controlled oscillator in accordance with a signal supplied from the pull-in type first phase comparator. When data is to be reproduced, the clock signals of the PLL circuit are processed by the same voltage controlled oscillator in accordance with a signal supplied from the lock-in type second phase comparator.
摘要翻译：光盘装置在光盘上记录数据或从其再现数据。光盘具有多个区域，每个区域包括多个轨道，并且光盘装置基于具有不同频率的时钟信号来记录或再现关于区域的数据。光盘装置包括第一和第二相位比较器。第一相位比较器是一个引入型，并输出与由PLL电路产生的时钟信号和再现数据的二进制信号之间的相位差对应的信号。第二相位比较器是锁存型，并且输出与通过对由PLL电路产生的时钟信号进行分频而获得的信号与通过对基本时钟信号进行分频而获得的信号之间的相位差相对应的信号。当要记录数据或PLL电路输出时钟信号的时序不合适时，PLL电路的时钟信号由压控振荡器根据从引入型第一相位提供的信号进行处理比较器。当要再现数据时，PLL电路的时钟信号由相同的压控振荡器根据从锁定型第二相位比较器提供的信号进行处理。

25. 发明授权

US5359585A Information reproducing apparatus with variable digitizing threshold 失效
标题翻译：具有可变数字化阈值的信息再现装置
公开(公告)号：US5359585A
公开(公告)日：1994-10-25
申请号：US953157
申请日：1992-09-29
申请人： Koki Tanoue , Tomohisa Yoshimaru , Sueo Ueno
发明人： Koki Tanoue , Tomohisa Yoshimaru , Sueo Ueno
IPC分类号： G11B7/00 , G11B7/005 , G11B20/10 , G11B20/14 , G11B27/30
CPC分类号： G11B20/10222 , G11B20/10009 , G11B20/1403 , G11B27/3027 , G11B7/005
摘要： The present invention aims at preventing erroneous data reproduction even when the amplitude center of a signal of a data part read out from an optical disc is displaced. An information reproducing apparatus comprises read means for reading data stored in each of block units on an optical disc and outputting a read signal, digitizing means for digitizing the read signal by using a slice level, generating means for comparing the signal digitized by the digitizing means and clock signals output at predetermined intervals, thereby generating a charge width signal representing a phase difference between the digitized signal and the clock signals, while the data stored in a data storing portion of the block unit is read by the read means, and changing means for changing the slice level of the digitizing means on the basis of the charge width signal generated by the generating means.
摘要翻译：本发明的目的在于防止从光盘读出的数据部分的信号的振幅中心位移时的错误数据再现。一种信息再现装置，包括读取装置，用于读取存储在光盘上的块单元中的数据并输出读取信号;数字化装置，用于通过使用限幅电平数字化读取信号;生成装置，用于将由数字化装置并且以预定间隔输出时钟信号，由此产生表示数字化信号和时钟信号之间的相位差的电荷宽度信号，同时存储在块单元的数据存储部分中的数据由读取装置读取;以及改变装置用于根据由发生装置产生的充电宽度信号来改变数字化装置的限幅电平。

26. 发明授权

US5339303A Apparatus for reproducing information from optical disk on which information in recorded by mark length recording 失效
标题翻译：用于从光盘再现信息的装置，其中通过标记长度记录记录的信息
公开(公告)号：US5339303A
公开(公告)日：1994-08-16
申请号：US737489
申请日：1991-07-30
申请人： Tomohisa Yoshimaru
发明人： Tomohisa Yoshimaru
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/005 , G11B20/10 , G11B20/14 , G11B20/18
CPC分类号： G11B20/10037 , G11B20/10009 , G11B20/10222 , G11B20/14 , G11B20/18 , G11B7/0045 , G11B7/005
摘要： In this invention, in an optical disk on which information is recorded by a mark length recording method, an average value of detection signals of sync codes recorded on the optical disk beforehand is calculated, and a difference between the average value and a level "0" is determined to be a bias voltage. The bias voltage is superposed on a detection signal of the recorded information, and the signal is binarized by the level "0".
摘要翻译：在本发明中，在通过标记长度记录方法记录了信息的光盘中，计算预先记录在光盘上的同步码的检测信号的平均值，平均值与电平“0”之间的差 “被确定为偏置电压。偏置电压叠加在记录信息的检测信号上，信号被二进制化为“0”。

27. 发明授权

US5153869A Apparatus for recording information on an optical disk with a modified constant linear density system 失效
标题翻译：用于在具有改进的恒定线性密度系统的光盘上记录信息的装置
公开(公告)号：US5153869A
公开(公告)日：1992-10-06
申请号：US456555
申请日：1989-12-26
申请人： Tomohisa Yoshimaru , Tsuneshi Yokota
发明人： Tomohisa Yoshimaru , Tsuneshi Yokota
IPC分类号： G11B7/013 , G11B19/28 , G11B20/10 , G11B20/12
CPC分类号： G11B7/24085 , G11B19/28 , G11B20/10 , G11B20/1258 , G11B2220/2537
摘要： An information recording apparatus includes a rotating section for rotating an optical disk at a constant angular velocity, the disk including a spiral recording track or concentric recording tracks, a recording section for recording information with a light beam irradiated on the recording tracks of said optical disk, the light beam having an arbitrary recording frequency, and control means for controlling the recording section such that the information is recorded on the optical disk while a pitch between adjacent record pits is elongated as a position of a recording track is moved from an innermost track toward an outermost track, the pitch at the innermost track being a first pitch, the pitch at the outermost track being a second pitch, the pitch at a track between the innermost and outermost tracks being longer than the first pitch and shorter than the second pitch, and the second pitch being shorter than a third pitch expected at the outermost track when the optical disk is rotated at the constant angular velocity and the light beam is irradiated on the disk with a constant recording frequency.
摘要翻译：信息记录装置包括用于以恒定角速度旋转光盘的旋转部分，盘包括螺旋记录轨道或同心记录轨道，记录部分，用于利用照射在所述光盘的记录轨道上的光束来记录信息，具有任意记录频率的光束，以及用于控制记录部分的控制装置，使得信息被记录在光盘上，同时随着记录磁迹的位置从最内侧的轨迹移动，相邻记录凹坑之间的间距变长朝向最外侧的轨道，最内轨道处的间距是第一间距，最外侧轨道处的间距是第二间距，最里面和最外侧轨道之间的轨道处的间距比第一间距长，并且短于第二间距并且当光盘是旋转时，第二音调短于预期在最外侧轨道处的第三音调以恒定的角速度进行编辑，并且以恒定的记录频率将光束照射在盘上。

28. 发明授权

US5101392A Information recording apparatus 失效
公开(公告)号：US5101392A
公开(公告)日：1992-03-31
申请号：US438075
申请日：1989-11-20
申请人： Tomohisa Yoshimaru , Tsuneshi Yokota
发明人： Tomohisa Yoshimaru , Tsuneshi Yokota
IPC分类号： G11B7/004 , G11B19/04
CPC分类号： G11B19/04 , G11B7/004
摘要： Prior to emitting a light beam from an optical head, an information recording apparatus moves the optical head in the direction of the optical axis so as to render the light beam in a defocused state on an optical recording medium. Then, the size of the emitted light beam is detected by a detector.

29. 发明授权

US4751693A Memory disk apparatus 失效
标题翻译：存储盘装置
公开(公告)号：US4751693A
公开(公告)日：1988-06-14
申请号：US889384
申请日：1986-07-25
申请人： Tomohisa Yoshimaru
发明人： Tomohisa Yoshimaru
IPC分类号： G11B7/00 , G11B7/002 , G11B7/004 , G11B7/007 , G11B19/20 , G11B19/24 , G11B20/12 , G11B21/08 , G11B27/10 , G11B27/30
CPC分类号： G11B19/20 , G11B19/24 , G11B20/12 , G11B21/083 , G11B27/10 , G11B27/105 , G11B27/3027 , G11B7/004 , G11B7/007 , G11B2220/20 , G11B2220/2537
摘要： An optical disk apparatus has an optical head for recording information on or reproducing information from an optical disk. The optical disk has a number of spiral or concentric tracks and a number of sectors formed along the circumferential direction of the disk. The sectors are divided into a plurality of sector blocks along the circumferential direction of the disk. Each sector block includes a different number of sectors which are continuous along the circumferential direction and which have a substantially constant linear length. A memory stores at least the speed data for maintaining a constant relative speed between the optical head and optical disk and is determined for each block group having a predetermined number of blocks. Speed data corresponding to the designated sector block is read out from the memory and is supplied to a velocity control circuit. A motor is driven to maintain a constant linear velocity between the optical head and the tracks of the optical disk.
摘要翻译：光盘装置具有用于从光盘记录信息或从光盘再现信息的光学头。光盘具有多个螺旋或同心的轨迹以及沿圆周方向形成的多个扇形。这些扇区沿着圆盘的圆周方向分成多个扇区块。每个扇形块包括沿着圆周方向连续且具有基本上恒定的线性长度的不同数量的扇形。存储器至少存储用于在光头和光盘之间保持恒定相对速度的速度数据，并且针对具有预定数量块的每个块组确定。对应于指定扇区块的速度数据从存储器中读出并提供给速度控制电路。驱动电动机以保持光头与光盘轨迹之间的恒定的线速度。

30. 发明授权

US4641294A Method and apparatus for performing a memory operation on a fixed length block of data on a memory disk 失效
标题翻译：对存储盘上的固定长度的数据块执行存储器操作的方法和装置
公开(公告)号：US4641294A
公开(公告)日：1987-02-03
申请号：US625365
申请日：1984-06-27
申请人： Tomohisa Yoshimaru
发明人： Tomohisa Yoshimaru
IPC分类号： G11B7/00 , G11B7/002 , G11B7/004 , G11B7/007 , G11B19/20 , G11B19/24 , G11B20/12 , G11B21/08 , G11B27/10 , G11B27/30
CPC分类号： G11B19/20 , G11B19/24 , G11B20/12 , G11B21/083 , G11B27/10 , G11B27/105 , G11B27/3027 , G11B7/004 , G11B7/007 , G11B2220/20 , G11B2220/2537
摘要： An optical disk apparatus has an optical head for recording information on or reproducing information from an optical disk. The optical disk has a number of spiral or concentric tracks and a number of sectors formed along the circumferential direction of the disk. The sectors are divided into a plurality of sector blocks along the circumferential direction of the disk. Each sector block includes a different number of sectors which are continuous along the circumferential direction and which have a substantially constant linear length. A memory stores at least the speed data for maintaining a constant relative speed between the optical head and optical disk and is determined for each block group having a predetermined number of blocks. Speed data corresponding to the designated sector block is read out from the memory and is supplied to a velocity control circuit. A motor is driven to maintain a constant linear velocity between the optical head and the tracks of the optical disk.
摘要翻译：光盘装置具有用于从光盘记录信息或从光盘再现信息的光学头。光盘具有多个螺旋或同心的轨迹以及沿圆周方向形成的多个扇形。这些扇区沿着圆盘的圆周方向分成多个扇区块。每个扇形块包括沿着圆周方向连续且具有基本上恒定的线性长度的不同数量的扇形。存储器至少存储用于在光头和光盘之间保持恒定相对速度的速度数据，并且针对具有预定数量块的每个块组确定。对应于指定扇区块的速度数据从存储器中读出并提供给速度控制电路。驱动电动机以保持光头与光盘轨迹之间的恒定的线速度。

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