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1. 发明授权

US5550799A Device for and method of calibrating optimum recording power for recordable optical disc recording apparatus 失效
标题翻译：用于校准可记录光盘记录装置的最佳记录功率的装置和方法
公开(公告)号：US5550799A
公开(公告)日：1996-08-27
申请号：US374872
申请日：1995-01-19
申请人： Akiyoshi Inoue , Shoji Taniguchi , Eisaku Kawano , Naoharu Yanagawa , Hiroshi Suzuki
发明人： Akiyoshi Inoue , Shoji Taniguchi , Eisaku Kawano , Naoharu Yanagawa , Hiroshi Suzuki
IPC分类号： G11B5/596 , G11B7/00 , G11B7/0045 , G11B7/125
CPC分类号： G11B7/126 , G11B7/0045
摘要： A laser power calibration device installed in a recording device for recording information on an optical recording medium includes: laser unit for emitting and irradiating a laser beam on the optical recording medium to record FM video signal and EFM audio signal; unit for varying recording power of the laser beam and duty of recording signal for driving the laser unit independently of each other; unit for reading the FM video signal and EFM audio signal recorded on the optical recording medium; unit for detecting carrier level of the recorded FM video signal and error rate of recorded EFM audio signal; and unit for determining optimum recording power of the laser beam so that the carrier level is higher than a first predetermined value and the error rate is smaller than a second predetermined value.
摘要翻译：安装在用于在光学记录介质上记录信息的记录装置中的激光功率校准装置包括：用于在光学记录介质上发射和照射激光束以记录FM视频信号和EFM音频信号的激光单元; 用于改变激光束的记录功率的单元和用于驱动激光单元彼此独立的记录信号的占空比; 用于读取记录在光学记录介质上的FM视频信号和EFM音频信号的单元; 用于检测记录的FM视频信号的载波电平的单元和记录的EFM音频信号的错误率; 以及用于确定激光束的最佳记录功率的单元，使得载波电平高于第一预定值，并且误差率小于第二预定值。

2. 发明授权

US5162661A Position detector for maintaining a fixed distance between two objects 失效
标题翻译：用于维护两个对象之间固定距离的位置检测器
公开(公告)号：US5162661A
公开(公告)日：1992-11-10
申请号：US608926
申请日：1990-11-05
申请人： Katsuharu Sato , Shoji Taniguchi , Naoharu Yanagawa
发明人： Katsuharu Sato , Shoji Taniguchi , Naoharu Yanagawa
IPC分类号： G01B11/02 , G01D5/30 , G11B7/095 , G11B11/105
CPC分类号： G01B11/026 , G01D5/30 , G11B11/10576 , G11B7/0956 , G01B2210/44
摘要： A position detector includes: light emitting component for irradiating the surface of an object to be measured; two light receiving components for receiving light reflected by the measured surface, a distance from one of the light receiving components to the measured surface as viewed in a direction substantially perpendicular to the surface being different from a distance from the other of the light receiving components to the surface; calculating circuit for calculating a correction quantity for correcting the distances between the light receiving components and the surface, with the correction quantity being calculated on the basis of a difference between the output signals of the light receiving components; and, moving component for correcting the distances between the measured surface and the light receiving components in accordance with the correction quantity. A first embodiment has two light receiving components each spaced at different distances from the surface. A second embodiment has two light receiving components disposed between two light emitting components, or two light emitting components disposed between two light receiving components. A third embodiment has two light receiving components spaced at a same distance from the surface, but each spaced at different distances from a light emitting components.

3. 发明授权

US5321686A Read-write head of an magneto-optical disc player with both heads magnetically coupled together 失效
标题翻译：具有磁头耦合在一起的磁光盘播放器的读写头
公开(公告)号：US5321686A
公开(公告)日：1994-06-14
申请号：US952006
申请日：1992-09-24
申请人： Naoharu Yanagawa , Shoji Taniguchi
发明人： Naoharu Yanagawa , Shoji Taniguchi
IPC分类号： G11B11/10 , G11B11/105 , G11B17/30 , G11B11/00
CPC分类号： G11B11/10573
摘要： A read-write head of a magneto-optical disc player has an optical head having an optical pickup, and a magnetic head having an electromagnet. Each of the optical head and the magnetic head is slidably held by guide members so as to be moved in a radial direction of an optical disc. Permanent magnets are mounted on both heads for attracting each other head. Thus, when one of the head moves, the other follows.
摘要翻译：磁光盘播放器的读写头具有具有光学拾取器的光学头和具有电磁体的磁头。光学头和磁头中的每一个由引导构件可滑动地保持，以沿光盘的径向方向移动。永磁体安装在两个头部上以吸引彼此的头部。因此，当头中的一个移动时，另一个移动。

4. 发明授权

US5371725A Position control system for a read-write head of a magneto-optical disc player having heads which move independently from each other 失效
标题翻译：用于具有彼此独立移动的磁头的磁光盘播放机的读写头的位置控制系统
公开(公告)号：US5371725A
公开(公告)日：1994-12-06
申请号：US955373
申请日：1992-10-01
申请人： Naoharu Yanagawa , Shoji Taniguchi
发明人： Naoharu Yanagawa , Shoji Taniguchi
IPC分类号： G11B7/09 , G11B11/10 , G11B11/105 , G11B7/00 , G11B5/09 , G11B15/52 , G11B21/10
CPC分类号： G11B11/10573
摘要： A read-write head of a magneto-optical disc player has an optical head having an optical pickup, and a magnetic head having an electromagnet. The optical head and the magnetic head are each slidably held by guide members so as to be moved in a radial direction of an optical disc. A motor is mounted on each head for moving the head along the guide member. A relative position between both heads at a position where both heads oppose each other is detected, and both heads are moved along the guide members, maintaining the relative position.
摘要翻译：磁光盘播放器的读写头具有具有光学拾取器的光学头和具有电磁体的磁头。光头和磁头各自被引导构件可滑动地保持，以沿光盘的径向方向移动。电动机安装在每个头部上，用于沿着引导构件移动头部。检测在两个头部彼此相对的位置处的两个头部之间的相对位置，并且两个头部沿着引导构件移动，保持相对位置。

5. 发明授权

US5093816A Optical magnetic recording and reproducing system 失效
标题翻译：光学记录和再现系统
公开(公告)号：US5093816A
公开(公告)日：1992-03-03
申请号：US606282
申请日：1990-10-31
申请人： Shoji Taniguchi , Naoharu Yanagawa
发明人： Shoji Taniguchi , Naoharu Yanagawa
IPC分类号： G11B11/10 , G11B11/105
CPC分类号： G11B11/10534 , G11B11/10508 , G11B11/10515
摘要： An optical magnetic recording system has a magnetic head for generating a magnetic field on a magneto-optical disk, and an optical head including a magnetic actuator is provided for irradiating a laser beam. A field cancellation magnet is attached to the back of the magnetic head for producing a magnetic force so as to cancel a leakage magnetic force of the magnetic actuator which affects recording of information. This positioning of the field cancellation magnet provides better compensation of the leakage field without affecting the modulating field of the magnetic head.

6. 发明授权

US6075759A Optical information recording and reproducing apparatus 失效
标题翻译：光信息记录和再现装置
公开(公告)号：US6075759A
公开(公告)日：2000-06-13
申请号：US6223
申请日：1998-01-13
申请人： Naoharu Yanagawa , Fumihiko Sano , Hiroshi Suzuki , Shinji Suzuki , Yasumitsu Suzuki , Masanori Nakahara
发明人： Naoharu Yanagawa , Fumihiko Sano , Hiroshi Suzuki , Shinji Suzuki , Yasumitsu Suzuki , Masanori Nakahara
IPC分类号： G11B11/10 , G11B7/003 , G11B7/0033 , G11B7/09 , G11B11/105 , G11B7/00
CPC分类号： G11B7/0031 , G11B7/0033 , G11B7/0901 , G11B11/1055
摘要： An optical record medium has an information record surface on which a plurality of circular arc tracks are arranged such that centers of the circular arc tracks are arranged in a straight line direction. An apparatus for optically recording and reproducing information onto and from the optical record medium is provided with: a rotatable optical system for emitting a light beam onto the circular arc track of the optical record medium which is being moved straight in the straight line direction, while being rotated with an rotational axis perpendicular to the information record surface; a straight moving device for relatively moving the rotatable optical system and the optical record medium to each other in the straight line direction; a detecting device for detecting a displacement amount from the circular arc track at an irradiated position on the information record surface of the light beam, on the basis of a reflection light from the circular arc track of the light beam, and outputting a displacement amount signal indicating the detected displacement amount; a perpendicularly moving device for relatively moving the optical record medium and the rotatable optical system to each other perpendicularly to the straight line direction such that the irradiated position approaches the circular arc track, on the basis of the outputted displacement amount signal; and a recording and reproducing device for recording and reproducing the information onto and from the optical record medium by use of the light beam emitted to the circular arc track.
摘要翻译：光学记录介质具有信息记录表面，多个圆弧轨迹被布置成使得圆弧轨迹的中心沿直线方向排列。一种用于在光学记录介质上光学地记录和再现信息的装置设置有：用于将光束发射到沿着直线方向直线移动的光学记录介质的圆弧轨道的可旋转光学系统，同时以垂直于信息记录表面的旋转轴线旋转; 用于使可旋转光学系统和光学记录介质在直线方向上彼此相对移动的直线移动装置; 检测装置，用于根据来自光束的圆弧轨迹的反射光检测在光束的信息记录表面上的照射位置处的圆弧轨迹的位移量，并输出位移量信号指示检测到的位移量; 垂直移动装置，用于基于输出的位移量信号，使光学记录介质和可旋转光学系统垂直于直线方向彼此相对移动，使得照射位置接近圆弧轨迹; 以及用于通过使用发射到圆弧轨道的光束将信息记录到光记录介质上并从光记录介质再现信息的记录和再现装置。

7. 发明授权

US5894460A Magneto-optical card recording apparatus employing an initialization magnet and a recording magnet 失效
标题翻译：采用初始化磁体和记录磁体的磁光卡记录装置
公开(公告)号：US5894460A
公开(公告)日：1999-04-13
申请号：US908176
申请日：1997-08-07
申请人： Naoharu Yanagawa , Fumihiko Sano , Hiroshi Suzuki , Shinji Suzuki , Yasumitsu Suzuki , Masanori Nakahara
发明人： Naoharu Yanagawa , Fumihiko Sano , Hiroshi Suzuki , Shinji Suzuki , Yasumitsu Suzuki , Masanori Nakahara
IPC分类号： G11B11/10 , G11B7/0033 , G11B11/105 , G11B11/00
CPC分类号： G11B11/10532 , G11B11/10552 , G11B7/0033
摘要： A rotary type pickup apparatus adopting a light modulation system, is capable of over-writing and suitable for miniaturization. In the optical pickup apparatus constituted by a stationary optical part and a rotary optical part which comprises an objective lens and a light beam guiding device, a recording magnet and an initialization auxiliary magnet are provided in the rotary optical part, the recording magnet being disposed close to the objective lens and the initialization auxiliary magnet being positioned over a rotation circumference where the objective lens rotates. Further provided are a recording magnet and an initialization auxiliary magnet which are disposed so as to pinch a magnetooptical recording medium together with the objective lens, the initialization auxiliary magnet being positioned behind the recording magnet in a sending direction of an optical card.
摘要翻译：采用光调制系统的旋转式拾取装置能够过写并适于小型化。在由固定光学部件和包括物镜和光束引导装置的旋转光学部件构成的光学拾取装置中，在旋转光学部件中设置有记录磁体和初始化辅助磁体，记录磁体靠近物镜和初始化辅助磁体位于物镜旋转的旋转圆周上。进一步提供了一种记录磁体和初始化辅助磁体，其被设置成与物镜一起夹住磁光记录介质，初始化辅助磁体位于记录磁体的后面，沿着光卡的发送方向。

8. 发明授权

US5748600A Rotational optical head for optical recording medium 失效
标题翻译：旋转光学头用于光学记录介质
公开(公告)号：US5748600A
公开(公告)日：1998-05-05
申请号：US632339
申请日：1996-04-10
申请人： Manabu Sugano , Susumu Nomura , Naoharu Yanagawa , Hiroshi Suzuki
发明人： Manabu Sugano , Susumu Nomura , Naoharu Yanagawa , Hiroshi Suzuki
IPC分类号： G11B7/00 , G11B7/003 , G11B7/0033 , G11B7/085 , G11B7/09 , G11B7/125 , G11B7/135 , G11B11/105
CPC分类号： G11B7/126 , G11B11/10552 , G11B11/1056 , G11B7/0033 , G11B7/08523 , G11B7/0941 , G11B7/0031
摘要： A pickup apparatus of an optical card has an improved data transfer efficiency and miniaturization and thin shape of the apparatus can be realized. The length of a line segment connecting a center of an objective lens provided in a rotational optical unit and a center of a rotary drum is set to a length specified by a length in the major side direction on a recording surface of the optical card and (1+cos.theta./2). An optical pickup apparatus has: a fixed optical unit SOP; a rotary drum in reflecting mirrors for guiding a light beam B emitted from the fixed optical unit SOP to a recording surface of an optical card and an objective lens are mounted; and a rotational optical unit ROP having a rotary motor for rotating the rotary drum, wherein information is recorded and reproduced to and from the recording surface of the optical card. A length of a line segment connecting the center of the objective lens and the center of rotation of the rotary drum is decided on the basis of a length in the major side direction on the recording surface of the optical card and (1+cos.theta./2).
摘要翻译：光卡的拾取装置具有改进的数据传送效率并且可以实现设备的小型化和细小形状。将设置在旋转光学单元中的物镜的中心与旋转磁鼓的中心连接的线段的长度设定为由光卡的记录面上的长边方向的长度指定的长度， 1 +cosθ/ 2）。光学拾取装置具有：固定光学单元SOP; 安装用于将从固定光学单元SOP发射的光束B引导到光学卡和物镜的记录表面的反射镜中的旋转鼓; 以及旋转光学单元ROP，其具有用于旋转旋转滚筒的旋转马达，其中信息被记录并从光卡的记录表面再现。基于光卡的记录表面上的主方向上的长度和（1 +cosθ/λ）来确定连接物镜的中心和旋转鼓的旋转中心的线段的长度， 2）。

9. 发明申请

US20150124249A1 LIGHT MEASUREMENT APPARATUS 有权
标题翻译：轻量测量装置
公开(公告)号：US20150124249A1
公开(公告)日：2015-05-07
申请号：US14407626
申请日：2012-06-15
申请人： Naoharu Yanagawa
发明人： Naoharu Yanagawa
IPC分类号： G01J3/02
CPC分类号： G01J3/0254 , G01J1/08 , G01J2001/0481
摘要： The light measurement apparatus according to the present invention includes: an integrating sphere; a reference calibration light source body holding unit that is arranged on the integrating sphere and to which a reference calibration light source body is attached; a test light source body holding unit that is arranged on the integrating sphere and to which a test light source body to be measured is attached; a light detection unit that is arranged on the integrating sphere and detects light from the reference calibration light source body and the test light source body; and a control unit that controls lighting of the reference calibration light source body and the test light source body, the light measurement apparatus being configured so that only either one of the reference calibration light source body and the test light source body is able to selectively emit light in the integrating sphere.
摘要翻译：根据本发明的光测量装置包括：积分球; 参考校准光源体保持单元，其布置在所述积分球上并附着有基准校准光源体; 测试光源体保持单元，其布置在所述积分球上，并且附接有待测量的测试光源体; 光检测单元，布置在积分球上并检测来自基准校准光源体和测试光源体的光; 以及控制单元，其控制所述基准校准光源体和所述测试光源体的照明，所述光测量装置被配置为使得仅所述参考校准光源体和所述测试光源体中的任一个能够选择性地发射光在积分球。

10. 发明授权

US07961579B2 Information reproduction apparatus 失效
标题翻译：信息再生装置
公开(公告)号：US07961579B2
公开(公告)日：2011-06-14
申请号：US12445508
申请日：2006-10-17
申请人： Kazuo Kuroda , Naoharu Yanagawa
发明人： Kazuo Kuroda , Naoharu Yanagawa
IPC分类号： G11B7/00
CPC分类号： G11B19/12 , G11B2007/0006
摘要： When a medium selection button 101 is operated, an optical disc reproduction apparatus 1 recognizes which medium is selected according to inputted medium selection information, and then opens a tray 104. Next, when a medium selection button 101 is operated, the optical disc reproduction apparatus 1 determines the inputted medium selection information and closes the tray 104. Next, the optical disc reproduction apparatus 1 acquires a priority list 16 and modifies the priority list 16 such that the order of the selected medium in the priority list 16 is a first priority and the remaining orders of the other media are successively lowered. The optical disc reproduction apparatus 1 performs a medium check for each of the media in accordance with the orders of the modified priority list 16.
摘要翻译：当操作介质选择按钮101时，光盘再现装置1根据输入的介质选择信息识别哪个介质被选择，然后打开托盘104.接下来，当操作介质选择按钮101时，光盘再现设备 1确定输入的介质选择信息并关闭托盘104.接下来，光盘再现设备1获取优先级列表16并修改优先级列表16，使得优先级列表16中所选择的介质的顺序是第一优先级，其他媒体的剩余命令依次下降。光盘再现装置1根据修改的优先级列表16的顺序对媒体进行媒体检查。

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