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1. 发明授权

US5467328A Lens drive mechanism for optical disc player with parallel support springs having different spring constants 失效
标题翻译：具有不同弹簧常数的平行支撑弹簧的光盘播放器的镜头驱动机构
公开(公告)号：US5467328A
公开(公告)日：1995-11-14
申请号：US285513
申请日：1994-08-04
申请人： Yutaka Murakami , Toru Nakamura , Takao Hayashi , Akira Matsubara , Hisashi Aizawa
发明人： Yutaka Murakami , Toru Nakamura , Takao Hayashi , Akira Matsubara , Hisashi Aizawa
IPC分类号： G11B7/09
CPC分类号： G11B7/0932
摘要： A lens drive mechanism for an optical disc player includes a movable unit including an objective lens for focusing a coherent beam of light on an optical disc, a lens holder carrying the objective lens, focusing and tracking coils secured to opposite portions of a periphery of the lens holder. The lens drive mechanism also includes permanent magnets and yokes, and a plurality of support members connected at one end to the periphery of the lens holder and at the opposite end to a support fixture for supporting the movable unit for movement in focusing and tracking directions substantially perpendicular to each other. A upper set of the support members has a spring constant different from that of a lower set of the support members, and the product of the spring constant of the upper set of the support members multiplied by a distance from the center of gravity of the movable unit to a position of securement of the upper set of the support members is chosen to be equal to the product of the spring constant of the lower set of the support members multiplied by a distance from the center of gravity of the movable unit to a position of securement of the lower set of the support members.
摘要翻译：用于光盘播放器的透镜驱动机构包括：可移动单元，包括用于将相干光束聚焦在光盘上的物镜，承载物镜的透镜架，固定到所述物镜周边的相对部分的聚焦和跟踪线圈镜头座透镜驱动机构还包括永磁体和轭，以及多个支撑构件，其一端连接到透镜保持器的周边，并且在相对端连接到支撑固定件，用于支撑可移动单元以基本上在聚焦和跟踪方向上移动彼此垂直。上一组支撑构件具有与下一组支撑构件的弹簧常数不同的弹簧常数，并且上部支撑构件的弹簧常数乘以距离可移动的重心的距离的乘积单元到上部支撑构件的固定位置被选择为等于下部支撑构件的弹簧常数乘以距离可移动单元的重心的距离乘以位置固定下一组支撑构件。

2. 发明授权

US5430699A Optical reading and writing device 失效
标题翻译：光学读写装置
公开(公告)号：US5430699A
公开(公告)日：1995-07-04
申请号：US200456
申请日：1994-02-23
申请人： Akira Matsubara , Takao Hayashi , Yutaka Murakami , Toru Nakamura , Hideki Aiko
发明人： Akira Matsubara , Takao Hayashi , Yutaka Murakami , Toru Nakamura , Hideki Aiko
IPC分类号： G11B7/095 , G11B7/00
CPC分类号： G11B7/0956 , G11B7/0935
摘要： The relative tilt of an optical disk and a movable objective lens holder is measured as an output of a differential amplifier which subtracts an output of first photodetectors and which detect the reflected light from optical disk from an output of second photodetectors and which detect the reflected light from a reflector mounted on movable objective lens holder. The signal from differential amplifier is used to tilt movable objective lens holder so that the movable objective lens holder compensates the tilt of optical disk.
摘要翻译：测量光盘和可移动物镜座的相对倾斜度作为差分放大器的输出，该差分放大器减去第一光电检测器的输出，并从第二光电检测器的输出检测来自光盘的反射光，并检测反射光从安装在可移动物镜座上的反射器。来自差分放大器的信号用于倾斜可动物镜保持器，使得可移动物镜保持器补偿光盘的倾斜。

3. 发明授权

US5629919A Two plate-like beam splitting device 失效
标题翻译：两个板状分束装置
公开(公告)号：US5629919A
公开(公告)日：1997-05-13
申请号：US429877
申请日：1995-04-27
申请人： Takao Hayashi , Toru Nakamura , Hideki Aiko , Akira Matsubara
发明人： Takao Hayashi , Toru Nakamura , Hideki Aiko , Akira Matsubara
IPC分类号： G11B7/12 , G11B7/135 , G11B11/105 , H01S5/022 , H01S5/183 , G11B7/00
CPC分类号： G11B7/1353 , G11B11/10543 , G11B7/123 , G11B7/1365 , H01S5/02296 , H01S5/0264 , H01S5/183
摘要： In an optical head, a light emitting element emits an optical beam, and the beam is condensed by a condensing element onto an information recording medium. A first plate beam-splitting element has a splitting ratio of P polarization to S polarization, and it splits at least a part of the beam reflected by the information recording medium along a direction different from that of a direction returning to the light emitting element. A second plate beam-splitting element is provided in parallel to the first plate beam-splitting element, and it splits the beam split by the first plate beam-splitting element into at least two beams having polarization planes perpendicular to each other. The two beams are detected by a pair of photosensors. Because the first and second beam-splitting elements are set in parallel to each other, an optical path from the light emitting element to the information recording medium is separated from that of a reflected beam from the medium with a very small angle, and the optical elements can be located at adjacent positions to each other. Thus, the optical head can be made compact to a large extent. Further, the optical head can be sealed for high reliability.
摘要翻译：在光学头中，发光元件发射光束，并且光束被聚光元件冷凝到信息记录介质上。第一板分束元件具有P偏振与S偏振的分离比，并且其沿着与返回到发光元件的方向不同的方向分裂由信息记录介质反射的光束的至少一部分。第二板分束元件平行于第一板分束元件设置，并且将由第一板分束元件分裂的光束分成具有彼此垂直的偏振面的至少两个光束。两束光束由一对光电传感器检测。由于第一和第二光束分离元件彼此平行设置，从发光元件到信息记录介质的光路与来自介质的反射光束的光路以非常小的角度分离，并且光学元件可以位于彼此相邻的位置。因此，可以在很大程度上使光学头紧凑。此外，光学头可以被密封以获得高可靠性。

4. 发明授权

US5781351A Mounting structure of objective lens for optical pick-up used for optical disk device 失效
标题翻译：用于光盘装置的光学拾取物镜的安装结构
公开(公告)号：US5781351A
公开(公告)日：1998-07-14
申请号：US657740
申请日：1996-05-31
申请人： Yutaka Murakami , Takao Hayashi , Tomotada Kamei
发明人： Yutaka Murakami , Takao Hayashi , Tomotada Kamei
IPC分类号： G02B7/02 , G11B7/09 , G11B7/135 , G11B7/22
CPC分类号： G11B7/1372 , G02B7/025 , G11B7/22 , G11B7/0935
摘要： An optical pick-up for use in optical disk devices comprises an objective lens having an outer ring formed therearound and a lens holder for positioning and holding the objective lens, the lens holder having first and second inner walls between which an annular shoulder portion is formed, and plural recesses formed on the annular shoulder portion as reservoirs into which excess adhesive agent is collected when adhesive agent is applied to a gap defined between the first inner wall and the outer ring of the objective lens. Various structures for collecting excess adhesive agent are also disclosed.
摘要翻译：用于光盘装置的光学拾取器包括具有形成在其周围的外环的物镜和用于定位和保持物镜的透镜保持器，透镜保持器具有形成有环形肩部的第一和第二内壁以及形成在环形肩部上的多个凹部作为储存器，当粘合剂施加到限定在物镜的第一内壁和外圈之间的间隙时，多余的粘合剂被收集到其中。还公开了用于收集多余粘合剂的各种结构。

5. 发明授权

US4766303A Optical information system having a birefringence plate movably disposed in accordance with the detected light intensity 失效
标题翻译：光学信息系统具有根据检测到的光强度可移动地设置的双折射板
公开(公告)号：US4766303A
公开(公告)日：1988-08-23
申请号：US49262
申请日：1987-05-13
申请人： Keiichi Yoshizumi , Akira Matsubara , Takao Hayashi
发明人： Keiichi Yoshizumi , Akira Matsubara , Takao Hayashi
IPC分类号： G11B7/135 , G01J1/32
CPC分类号： G11B7/1365
摘要： An optical information system includes an optical source emitting light. An information recording member is exposed to the emitted light. A beam splitter disposed between the light emitting source and the information recording member separates light reflected by the information recording member and light traveling from the light emitting source to the information recording member. A device detects intensity of the separated reflected light. A birefringence plate is movably disposed between the light emitting source and the information recording member. The birefringence plate is moved in accordance with the detected intensity of the separated reflected light.
摘要翻译：光学信息系统包括发射光的光源。信息记录部件暴露于发出的光。设置在发光源和信息记录部件之间的分束器将由信息记录部件反射的光和从发光源传播的光分离到信息记录部件。设备检测分离的反射光的强度。双折射板可移动地设置在发光源和信息记录部件之间。双折射板根据检测到的分离的反射光的强度而移动。

6. 发明授权

US07304920B2 Optical head that detects tilt in an optical disk 失效
标题翻译：检测光盘倾斜的光头
公开(公告)号：US07304920B2
公开(公告)日：2007-12-04
申请号：US10312471
申请日：2001-06-22
申请人： Akihiro Arai , Takao Hayashi , Toru Nakamura , Takayuki Nagata
发明人： Akihiro Arai , Takao Hayashi , Toru Nakamura , Takayuki Nagata
IPC分类号： G11B7/00
CPC分类号： G11B7/1381 , G11B7/0901 , G11B7/0903 , G11B7/0943 , G11B7/0956 , G11B7/131
摘要： An optical head that detects a tilt in an optical disk. The optical head includes a condensing means, a light receiving means, a tracking error signal detection means, and an optical tilt detecting means. The light receiving means includes at least first and second light receiving areas, the first light receiving area being a rectangle having long sides that extend in a direction perpendicular to information tracks on the optical disk. The tracking error signal detection means detect error signals corresponding to light signals received in the first and second light receiving areas. The optical disk tilt detection means compare the tracking error signals to detect a radial tilt in the optical disk. In an alternative embodiment, the long sides of first light receiving area extend in a direction parallel to the information tracks, and the optical disk tilt detecting means detect a tangential tilt in the optical disk.
摘要翻译：检测光盘倾斜的光学头。光头包括聚光装置，光接收装置，跟踪误差信号检测装置和光倾斜检测装置。光接收装置至少包括第一和第二光接收区域，第一光接收区域是具有沿与光盘上的信息轨道垂直的方向延伸的长边的矩形。跟踪误差信号检测装置检测对应于在第一和第二光接收区域中接收的光信号的误差信号。光盘倾斜检测装置比较跟踪误差信号以检测光盘中的径向倾斜。在替代实施例中，第一光接收区域的长边在与信息轨道平行的方向上延伸，并且光盘倾斜检测装置检测光盘中的切向倾斜。

7. 发明授权

US06438091B1 Optical head 有权
公开(公告)号：US06438091B1
公开(公告)日：2002-08-20
申请号：US09899204
申请日：2001-07-06
申请人： Takayuki Nagata , Akihiro Arai , Toru Nakamura , Takao Hayashi
发明人： Takayuki Nagata , Akihiro Arai , Toru Nakamura , Takao Hayashi
IPC分类号： G11B700
摘要： An optical head comprises a photodetector 8 having divided photosensitive areas to detect light 13 reflected from an optical disk 7, means 10, 11, 12 for obtaining tracking error signal by operating signals from the photosensitive areas. The photodetector 8 has a first division line 9a parallel to an information track on the optical disk and second and third division lines 9b, 9c perpendicular to the first division line 9f and symmetrical to the optical axis. Further, a light-shielding area 8i is provided for shielding a part of the reflected light between the division lines 9b and 9c. The signals are operated to reduce offset of the tracking error signal due to a shift of object lens and a tilt of the optical disk. Accordingly, the optical head of the present invention has a small offset of tracking error signal with a simple structure.

8. 发明授权

US5790504A Integrated optical head with an emitting light splitting polarizing prism and a detecting light splitting polarizing element 失效
标题翻译：具有发光分光偏振棱镜和检测分光偏振元件的集成光学头
公开(公告)号：US5790504A
公开(公告)日：1998-08-04
申请号：US657741
申请日：1996-05-31
申请人： Takao Hayashi , Toru Nakamura , Akihiro Arai
发明人： Takao Hayashi , Toru Nakamura , Akihiro Arai
IPC分类号： G11B11/10 , G11B7/135 , G11B11/105 , G11B7/08
CPC分类号： G11B7/1356 , G11B11/10543 , G11B7/123
摘要： A magneto-optical pick-up for recording and reproducing information to an information recording medium comprises an optical module comprising an integral light emitting element and receptor element having plural light reception areas, and a diffraction grating on the light incident/emission plane, an objective lens, a polarizing prism provided integrally to the optical module in the light path between the light-emitting element and an objective lens and having the reflectivity and transmittance differing for P-polarized and S-polarized lights, and a polarizing element provided internally or integrally to the optical module which divides the light reflected by or passed through the polarizing prism into light having at least two mutually-perpendicular polarization components to guide the divided lights to the receptor element.
摘要翻译：用于向信息记录介质记录和再现信息的磁光拾取器包括：光学模块，包括具有多个光接收区域的整体发光元件和接收元件，以及在光入射/发射平面上的衍射光栅，透镜，在发光元件和物镜之间的光路中与光学模块整体设置并且具有对于P偏振和S偏振光不同的反射率和透射率的偏振棱镜，以及设置在内部或整体上的偏振元件涉及将由偏振棱镜反射或通过偏振棱镜的光分成具有至少两个相互垂直的偏振分量的光的光学模块，以将分光引导到受体元件。

9. 发明授权

US06275463B1 Optical head 失效
标题翻译：光头
公开(公告)号：US06275463B1
公开(公告)日：2001-08-14
申请号：US09064847
申请日：1998-04-23
申请人： Takayuki Nagata , Akihiro Arai , Toru Nakamura , Takao Hayashi
发明人： Takayuki Nagata , Akihiro Arai , Toru Nakamura , Takao Hayashi
IPC分类号： G11B700
CPC分类号： G11B7/1381 , G11B7/0903 , G11B7/095 , G11B7/13
摘要： An optical head comprises a photodetector 8 having divided photosensitive areas to detect light 13 reflected from an optical disk 7, means 10, 11, 12 for obtaining track error signal by operating signals from the photosensitive areas. The photodetector 8 has a first division line 9a parallel to an information track on the optical disk and second and third division lines 9b, 9c perpendicular to the first division line 9f and symmetrical to the optical axis. Further, a light-shielding area 8i is provided for shielding a part of the reflected light between the division lines 9b and 9c. The signals are operated to reduce offset of the tracking error signal due to a shift of object lens and a tilt of the optical disk. Accordingly, the optical head of the present invention has a small offset of tracking error signal with a simple structure.
摘要翻译：光头包括光电检测器8，光电检测器8具有分离的感光区域，以检测从光盘7反射的光13，用于通过操作来自感光区域的信号来获得轨道误差信号的装置10,11,12。光电检测器8具有与光盘上的信息轨道平行的第一分割线9a和与第一分割线9f垂直并与光轴对称的第二和第三分割线9b，9c。此外，设置遮光区域8i以遮蔽分割线9b和9c之间的一部分反射光。操作信号以减少由于物镜的偏移和光盘倾斜引起的跟踪误差信号的偏移。因此，本发明的光头具有简单结构的跟踪误差信号的小偏移。

10. 发明申请

US20090193235A1 TRANSFER SYSTEM, AND TRANSFER METHOD 有权
标题翻译：转移系统和转移方法
公开(公告)号：US20090193235A1
公开(公告)日：2009-07-30
申请号：US12300025
申请日：2007-04-25
申请人： Takao Hayashi , Hiroki Sone , Toyokazu Kobayashi , Yoshinori Yamada , Akiya Inoue , Masayuki Tsujino , Hiromichi Kawano
发明人： Takao Hayashi , Hiroki Sone , Toyokazu Kobayashi , Yoshinori Yamada , Akiya Inoue , Masayuki Tsujino , Hiromichi Kawano
IPC分类号： G06F9/06
CPC分类号： G06Q10/06
摘要： In response to a transfer request, for which a loading time at a transfer source and a loading time at a transfer target are designated by a production controller, there is created a transfer scenario, which contains a basic transfer (From) from the transfer source to a buffer near the transfer target, for example, and a basic transfer (To) from the buffer to the transfer target. In order that the basic transfers (From, To) may be able to be executed, the buffer is reserved, and a transfer vehicle is allocated. The time period for the transfer vehicle to run to the transfer source or the buffer and the time period for the transfer vehicle to run from the transfer source or the buffer are estimated to assign a transfer command to the transfer vehicle. The possibility that the loading and the loading time may deviate from a designated period is evaluated. In case this possibility is high, a production controller is informed that a just-in-time transfer is difficult.
摘要翻译：响应于由生产控制器指定传送源处的加载时间和传送目的地的加载时间的传送请求，创建传送场景，其包含来自传送源的基本传送（From）到传送目标附近的缓冲器，以及从缓冲器到传送目标的基本传送（To）。为了能够执行基本传送（From，To），保留缓冲区，并且分配传送车辆。传送车辆运送到传送源或缓冲器的时间段以及从传送源或缓冲器运送的传送车辆的时间段被估计为向传送车辆分配传送命令。评估装载和装载时间可能偏离指定时间段的可能性。如果这种可能性很高，则通知生产控制器难以及时传送。

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