公开(公告)号：US5257271A

公开(公告)日：1993-10-26

申请号：US939406

申请日：1992-09-01

申请人： Roger Lagadec ,  Keisuke Sekiguchi ,  Hiroyuki Yamauchi ,  Masaru Tezuka ,  Satoru Tobita ,  Yoichiro Sako ,  Hiroyuki Hara, deceased

发明人： Roger Lagadec ,  Keisuke Sekiguchi ,  Hiroyuki Yamauchi ,  Masaru Tezuka ,  Satoru Tobita ,  Yoichiro Sako ,  Hiroyuki Hara, deceased

IPC分类号： G11B20/18 ,  H03M13/27 ,  H04L1/14

CPC分类号： H03M13/2764 ,  G11B20/1809

摘要： In a sampled data transmitting apparatus in which the sampled data to be transmitted are divided into odd-numbered samples and even-numbered samples and arranged in different rows of a two-dimensional data array, and in which error correction codes are annexed to each row and to each column of the two-dimensional data array, the row arraying sequence in one of the odd-numbered or even-numbered rows is caused to differ from the row arraying sequence in the other of the odd-numbered or even-numbered rows so that odd-numbered data and even-numbered data continuous with the odd-numbered data are not arranged in one row. In this manner, even when error correction becomes impossible by the error correcting code for one row, interpolation remains feasible because there exist no odd-numbered data or even-numbered data contiguous to each other in the row.

摘要翻译： 在采样数据发送装置中，将要发送的采样数据划分为奇数样本和偶数样本，并排列在二维数据阵列的不同行中，其中纠错码附于每行 并且对于二维数据阵列的每列，使奇数或偶数行之一中的行排列顺序与奇数行或偶数行中的另一行中的行排列顺序不同 使得与奇数数据连续的奇数数据和偶数数据不排列在一行中。 以这种方式，即使通过一行的纠错码不可能进行纠错，因为在该行中不存在彼此邻接的奇数数据或偶数数据，因此内插仍然是可行的。

公开(公告)号：US5239529A

公开(公告)日：1993-08-24

申请号：US607030

申请日：1990-10-31

申请人： Satoru Tobita ,  Teruaki Higashihara ,  Kazuyuki Hishida ,  Masaru Tezuka

发明人： Satoru Tobita ,  Teruaki Higashihara ,  Kazuyuki Hishida ,  Masaru Tezuka

IPC分类号： G11B11/10 ,  G11B7/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B11/105

CPC分类号： G11B7/004 ,  G11B11/10508 ,  G11B11/10515 ,  G11B11/10532 ,  G11B11/10595

摘要： A disk recording and reproducing apparatus using two light beams has a disk driving section for loading a disk-shaped record medium having recording tracks and for rotating the disk-shaped record medium, an optical system having a light beam generating source, a light beam splitting device for splitting a light beam to provide at least a main beam and a sub beam, an optical path forming device for respectively causing the main beam and the sub beam to become incident on two adjacent recording tracks in the disk-shaped record medium loaded on the disk driving section and a photo-detecting device for detecting the condition that at least the sub beam from the disk-shaped record medium loaded on the disk driving section is affected by the recording track. Also provided is a disk rotation control section for controlling the disk driving section such that a relative moving speed of the recording track relative to the main beam incident on the recording track becomes constant, a recording operation section causing the information to be recorded on the recording track on which the main beam becomes incident, and a reproducing operation section for generating a read-out information signal based on a detected output of the sub beam from the photo-detecting device. The resultant read-out information signal is written in a memory at a rate corresponding to the read-out information signal and the read-out information signal written in the memory is read out again at a predetermined reading rate to generate a reproduced information output.

公开(公告)号：US5291467A

公开(公告)日：1994-03-01

申请号：US912528

申请日：1992-07-13

申请人： Koji Ishiwata ,  Masaru Tezuka ,  Teruhito Noshiro ,  Satoru Tobita

发明人： Koji Ishiwata ,  Masaru Tezuka ,  Teruhito Noshiro ,  Satoru Tobita

IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/09 ,  G11B19/04 ,  G11B20/10 ,  G11B20/18 ,  G11B27/034 ,  G11B27/036

CPC分类号： G11B20/1883 ,  G11B19/04 ,  G11B20/10527 ,  G11B20/1809 ,  G11B27/036 ,  G11B7/004 ,  G11B7/0946 ,  G11B7/0948 ,  G11B2220/20 ,  G11B27/034

摘要： An apparatus for recording a signal on a disc medium driven by a servo circuit comprises, device for generating a laser beam for recording the signal on the disc medium, device for detecting a track jump of a scan of the disc medium by the laser beam, device for storing the signal during an occurrence of the track jump, and controller for controlling the laser beam generating device, track jump detecting device and storing device so that a recording operation by the laser beam is stopped during the occurrence of the track, and the signal stored in the storing device is recorded on a predetermined area of the disc medium after the record operation becomes to be possible.

摘要翻译： 一种用于在由伺服电路驱动的盘介质上记录信号的装置包括：用于产生用于在盘介质上记录信号的激光束的装置，用于检测激光束对盘介质的扫描的轨迹跳跃的装置， 用于在轨道跳跃发生期间存储信号的装置，以及用于控制激光束产生装置，轨道跳跃检测装置和存储装置的控制器，使得在轨道发生期间停止激光束的记录操作， 存储在存储装置中的信号在记录操作变得可能之后被记录在盘介质的预定区域上。

公开(公告)号：US5206850A

公开(公告)日：1993-04-27

申请号：US469042

申请日：1990-01-23

申请人： Masaru Tezuka ,  Satoru Tobita ,  Koji Ishiwata

发明人： Masaru Tezuka ,  Satoru Tobita ,  Koji Ishiwata

IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/007 ,  G11B7/24 ,  G11B27/00 ,  G11B27/034 ,  G11B27/11 ,  G11B27/30 ,  G11B27/32

CPC分类号： G11B27/329 ,  G11B27/034 ,  G11B27/11 ,  G11B27/3027 ,  G11B7/0045 ,  G11B7/007 ,  G11B2220/218 ,  G11B2220/2545 ,  G11B2220/65

摘要： An optically writable record of digital information is provided on an optically writable record disk having a reflection factor substantially higher than seventy percent, and is composed of first digital information including a plurality of program data and respective address data indicative of the individual addresses of the respective program data and being recorded with the latter sequentially along a first track in a first annular recording area of the record disk, and second digital information including table-of-contents data, identifying the plurality of program data, respectively, and being recorded sequentially along a second track which is in a second annular recording area of the record disk and which has a concluding end contiguous to a starting end of the first track so that, upon playback of the digital information record, the table-of-contents data and the plurality of program data and respective address data can be reproduced successively without interruption by a standardized compact disk player.

公开(公告)号：US07280449B2

公开(公告)日：2007-10-09

申请号：US10794336

申请日：2004-03-04

申请人： Noriaki Nishi ,  Masaru Tezuka

发明人： Noriaki Nishi ,  Masaru Tezuka

IPC分类号： G11B7/13

CPC分类号： G11B7/1263 ,  G11B7/0053 ,  G11B7/0943 ,  G11B7/131 ,  G11B7/1356 ,  G11B7/1369 ,  G11B7/13925 ,  G11B7/24079 ,  G11B7/24082

摘要： An optical head in which pre-formatted signals may be detected as variations in the amplitude or the phase in the pre-formatted signals are suppressed, and a recording and/or reproducing apparatus employing the optical head, are disclosed. The optical head includes a light source 212, an objective lens 220 for condensing a light beam radiated from the light source 212 on a recording track of an optical recording medium 102, and a photodetector unit 223 for receiving the light beam reflected back from said recording track. The photodetector unit 223 includes a first light receiving section 230b and a second light receiving section 230c. With a track pitch Tp of the optical recording medium, the wavelength λ of the light beam radiated from the light source 212, the numerical aperture NA of the objective lens and with λ/(Tp·NA)≧4/3, the first light receiving section receives the light of one of two light spot areas lying on both sides of a center area of a light spot of the reflected light beam passing through the center of the light spot for extending along the length of the recording track. The second light receiving section receives the light of the other of the two light spot areas.

摘要翻译： 预先格式化的信号可被检测为预格式化信号中的幅度或相位的变化的光学头，并且公开了采用光学头的记录和/或再现装置。 光头包括光源212，用于将从光源212辐射的光束聚光在光记录介质102的记录轨道上的物镜220和用于接收从所述记录反射回的光束的光电检测器单元223 跟踪。 光检测器单元223包括第一光接收部分230b和第二光接收部分230c。 利用光学记录介质的轨道间距Tp，从光源212辐射的光束的波长λ，物镜的数值孔径NA和λ/（Tp.NA）> = 4/3，第一 光接收部接收位于通过光点中心的反射光束的光点的中心区域的两侧的两个光点区域之一的光，以沿着记录轨道的长度延伸。 第二光接收部接收两个光点区域中的另一个的光。

公开(公告)号：US07619959B2

公开(公告)日：2009-11-17

申请号：US10498008

申请日：2002-12-18

申请人： Noriaki Nishi ,  Masaru Tezuka ,  Naoki Inoue ,  Kunika Hashimoto

发明人： Noriaki Nishi ,  Masaru Tezuka ,  Naoki Inoue ,  Kunika Hashimoto

IPC分类号： G11B7/00

CPC分类号： G11B7/1263 ,  G11B7/00 ,  G11B7/1356 ,  G11B7/1369 ,  G11B2007/0006 ,  G11B2007/0013

摘要： An optical disk drive (101) for optically recording and/or reproducing information signals is provided in which the power of a light beam emitted from an optical head (104) to an optical disk (102) is controlled by an optical-coupling efficiency varying elements (214, 215) correspondingly to the type of the optical disk, recording layer in a multilayer optical disk and a mode of operation selected while a variation of the optical-coupling efficiency is being detected by a light-detecting element (216), thereby positively varying the optical-coupling efficiency in a minimum necessary time. Thus, the power of the light beam focused on the optical disk can be varied in a wide range without having to extremely raise the ratio in output power between modes of operation at a light source (212). Therefore, even a light source whose rating of optical output power is small can be used to write and read information signals to and from any of optical disks of different types or to each of recording layers in a multilayer optical disk with a high accuracy. Namely, good characteristics in writing and reading information signals can be assured without having to largely vary the ratio in output power of the light source from the write to read mode, from one to another type of optical disks or from one to another recording layer of the multilayer optical disk.

摘要翻译： 提供用于光学记录和/或再现信息信号的光盘驱动器（101），其中从光学头（104）发射到光盘（102）的光束的功率由光耦合效率变化 对应于光盘类型的元件（214,215），多层光盘中的记录层以及由光检测元件（216）检测光耦合效率的变化而选择的操作模式， 从而在最小必要时间内积极地改变光耦合效率。 因此，聚焦在光盘上的光束的功率可以在宽范围内变化，而不必极大地提高在光源（212）处的操作模式之间的输出功率的比率。 因此，即使是光输出功率等级较小的光源也可以用于从多个光盘中的不同类型的光盘或每个记录层以高精度写入信息信号和从多层光盘中的每个记录层读取信息信号。 即，可以确保写入和读取信息信号的良好特性，而不必大幅度地改变光源的输出功率与写入/读取模式之间的比例，从一个到另一个类型的光盘，或从一个到另一个记录层 多层光盘。

公开(公告)号：US07177259B2

公开(公告)日：2007-02-13

申请号：US10493671

申请日：2003-08-19

申请人： Noriaki Nishi ,  Masaru Tezuka ,  Kunika Hashimoto

发明人： Noriaki Nishi ,  Masaru Tezuka ,  Kunika Hashimoto

IPC分类号： G11B7/00

CPC分类号： G11B7/128 ,  G11B7/1263 ,  G11B7/1356 ,  G11B7/1369 ,  G11B2007/0006 ,  G11B2007/0013

摘要： The present invention is directed to an optical head adapted for performing recording or reproduction of information signals with respect to an optical disc (102), which controls light coupling efficiency with respect to light beams irradiated onto the optical disc (102) by light coupling efficiency adjustable element such as a liquid crystal element (214), etc. in accordance with type of the optical disc (102), recording surface of multi-layer optical disc and/or operation mode to change power of light beams irradiated onto the optical disc (102) to a large extent without excessively increasing change quantity of output power of a semiconductor laser element (212). A beam splitter (218) divides incident light beams of P-polarized light at a predetermined ratio to allow the light beams thus obtained to be incident on a light detector (219) for disc surface power monitor.

摘要翻译： 本发明涉及一种适用于相对于光盘（102）执行信息信号的记录或再现的光学头，其通过光耦合效率来控制相对于照射到光盘（102）上的光束的光耦合效率 根据光盘（102）的类型，诸如液晶元件（214）等的可调元件，多层光盘的记录面和/或操作模式，以改变照射到光盘上的光束的功率 （102），而不会过度增加半导体激光元件（212）的输出功率的变化量。 分束器（218）以预定比例将P偏振光的入射光束分隔开，以使所获得的光束入射到用于盘表面功率监视器的光检测器（219）上。

公开(公告)号：US06714889B2

公开(公告)日：2004-03-30

申请号：US10372328

申请日：2003-02-25

申请人： Masaru Tezuka ,  Masahiro Hiji

发明人： Masaru Tezuka ,  Masahiro Hiji

IPC分类号： G06F1500

CPC分类号： G06Q10/06 ,  G06Q10/087

摘要： A production instruction volume decision support method comprising the steps of: creating a plurality of sets of amount of the production order; obtaining a plurality of evaluation values based on simulation of demand for each product; obtaining a superiority relationship among the sets of amount of the production order from the evaluation values; creating a new set of amount of the production order from two sets of amount of the production order which are superior to the other sets of amount of the production order; repeating the above steps a predetermined number of times to obtain solutions to the plurality of sets of amount of the production order which have been optimized; displaying a plurality of sets of amount of the production order which have nothing superior thereto; and enabling a user to select one of them according to his/her management policy.

摘要翻译： 一种生产指令量决定支持方法，包括以下步骤：创建多组生产订单量; 基于对每个产品的需求的模拟获得多个评估值; 从评估值中获得生产订单量之间的优势关系; 从生产订单的两套数量创造出一套新的生产订单数量，优于其他生产订单量; 重复上述步骤预定次数以获得已经优化的多组生产订单量的解; 显示没有任何优点的多组生产订单的数量; 并使用户能够根据他/她的管理策略选择其中之一。

公开(公告)号：US5625616A

公开(公告)日：1997-04-29

申请号：US627122

申请日：1996-04-03

申请人： Shigeaki Koike ,  Masaru Tezuka ,  Shinji Kaneko ,  Yoshizo Mihara

发明人： Shigeaki Koike ,  Masaru Tezuka ,  Shinji Kaneko ,  Yoshizo Mihara

IPC分类号： H01S5/042 ,  G11B7/125 ,  H01S5/06 ,  H01S5/068 ,  G01B7/125

CPC分类号： H05B33/089 ,  G11B7/126 ,  H01S5/06825 ,  H01S5/0617

摘要： A current detector detects a driving current Im flowing through a light emitting device (laser diode); a temperature sensor is arranged in the vicinity of the light emitting device; a microcomputer is supplied with the outputs of the current detector and temperature sensor; a temperature correction coefficient specific to the light emitting device, obtained based on a driving current value IT1 at a temperature T1 and a driving current value IT2 at a temperature T2 (>T1), is stored in memory; a deterioration threshold current Id for a detected temperature Ti is calculated; and when the deterioration threshold current Id for the detected temperature Ti is exceeded by the detected current, a driver is controlled so as to inhibit the supply of the driving current to the light emitting device. Since the operating temperature also is taken into consideration, deterioration of the light emitting device can be accurately estimated, thereby preventing erroneous recording/reproduction of data.

摘要翻译： 电流检测器检测流过发光器件（激光二极管）的驱动电流Im; 温度传感器布置在发光器件附近; 微电脑提供电流检测器和温度传感器的输出; 基于温度T1下的驱动电流值IT1和温度T2（> T1）的驱动电流值IT2获得的特定于发光器件的温度校正系数存储在存储器中; 计算检测温度Ti的劣化阈值电流Id; 并且当检测到的电流超过检测温度Ti的劣化阈值电流Id时，控制驱动器以便禁止向发光器件提供驱动电流。 由于也考虑了工作温度，因此可以准确地估计发光器件的劣化，从而防止数据的错误记录/再现。

公开(公告)号：US07283730B1

公开(公告)日：2007-10-16

申请号：US09671688

申请日：2000-09-28

申请人： Naoki Inoue ,  Masaru Tezuka ,  Shigeaki Koike

发明人： Naoki Inoue ,  Masaru Tezuka ,  Shigeaki Koike

IPC分类号： H04N5/00 ,  H04N5/225

CPC分类号： G11B31/006

摘要： The present invention provides an optical disc camcorder unit having a base plate assembly loaded with an optical disc and a camcorder main body accommodating the base plate assembly, the base plate assembly is swingably set to the camcorder main body via a rotating shaft so that the base plate assembly rotates in an axial direction about the rotating shaft. In this manner the optical disc camcorder provides improved recording and reproduction characteristic and improved tracking performance by way of preventing rolling generated by in the camcorder unit from being transmitted to internal base plate assembly and also preventing skew and oscillation of spindle motor shaft from being generated.

摘要翻译： 本发明提供了一种具有装载有光盘的基板组件和容纳基板组件的摄像机主体的光盘摄像机单元，基板组件经由旋转轴可摆动地设置在摄像机主体上，使得底座 板组件围绕旋转轴在轴向方向上旋转。 以这种方式，光盘摄像机通过防止在摄像机单元中产生的滚动而被传送到内部基板组件并且还防止主轴电机轴的偏斜和振荡产生而提供改进的记录和再现特性以及改进的跟踪性能。