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51. 发明授权

US4750163A Pick-up head abnormality detector for optical recording/reproducing apparatus 失效
标题翻译：用于光学记录/再现装置的拾取头异常检测器
公开(公告)号：US4750163A
公开(公告)日：1988-06-07
申请号：US836673
申请日：1986-03-05
申请人： Kunio Yamamiya , Masaharu Sakamoto
发明人： Kunio Yamamiya , Masaharu Sakamoto
IPC分类号： G11B7/12 , G11B7/09 , G11B7/24 , G11B19/04 , G11B7/085 , G11B27/36
CPC分类号： G11B19/04 , G11B7/09 , G11B7/24
摘要： A device for detecting the abnormality of an optical pick-up head has a laser diode for emitting a light beam through an optical system to a reference reflective region formed at a predetermined portion of an optical disk, a photosensor for receiving a reflected light from the reflective region through the optical system, and a photosensor for detecting directly the light amount of the laser diode. The difference or a ratio of the detection signals of the photosensors is obtained, and the difference or the ratio is compared with a predetermined value. When the compared result exceeds a predetermined value, the result is decided to be an abnormality of the pick-up head.
摘要翻译：用于检测光学拾取头的异常的装置具有用于通过光学系统将光束发射到形成在光盘的预定部分处的参考反射区域的激光二极管，用于接收来自光学拾取头的反射光的光电传感器通过光学系统的反射区域和用于直接检测激光二极管的光量的光电传感器。获得光电传感器的检测信号的差异或比率，并将差值或比率与预定值进行比较。当比较结果超过预定值时，结果被确定为拾取头的异常。

52. 外观设计

USD291449S Typewriter 失效
公开(公告)号：USD291449S
公开(公告)日：1987-08-18
申请号：US775289
申请日：1985-09-12
申请人： Isshin Miyamoto , Yasuo Nagamatsu , Yasuhiko Tanaka , Masataka Hidaka , Masaharu Sakamoto , Hideaki Sakamoto
设计人： Isshin Miyamoto , Yasuo Nagamatsu , Yasuhiko Tanaka , Masataka Hidaka , Masaharu Sakamoto , Hideaki Sakamoto

53. 发明授权

US4644514A Head drive control apparatus 失效
标题翻译：头驱动控制装置
公开(公告)号：US4644514A
公开(公告)日：1987-02-17
申请号：US609849
申请日：1984-05-14
申请人： Ken Ohshima , Hiroo Okada , Masaharu Sakamoto
发明人： Ken Ohshima , Hiroo Okada , Masaharu Sakamoto
IPC分类号： G11B7/085 , G11B21/08 , G11B21/10 , G11B21/02
CPC分类号： G11B21/083 , G11B21/085 , G11B7/08588
摘要： A head drive control apparatus has a head and a scale reader. When the head is moved by a head drive mechanism, the scale reader detects the marks on a scale and converts them into a scale signal. In a speed control mode, the scale signal is compared with a target signal by an access signal generator, which produces an access signal representing the difference between the compared signals. The head is moved in accordance with the access signal until the scale signal becomes identical with the target signal. When these signals become equal, the speed control mode is switched to a position control mode. In the position control mode, a scale signal generator, a pulse generator, an up/down counter, a D/A converter, an adder and an interpolator convert the scale signal into an analog signal which represents the position of the head. The analog signal is compared with a position designating signal by a differential amplifier. The head is moved in accordance with the output signal of this amplifier.
摘要翻译：头驱动控制装置具有头和刻度读取器。当头部由头驱动机构移动时，刻度读取器检测刻度上的标记并将其转换成刻度信号。在速度控制模式中，通过存取信号发生器将刻度信号与目标信号进行比较，其产生表示比较信号之间的差的存取信号。根据访问信号移动头，直到缩放信号变得与目标信号相同。当这些信号变得相等时，速度控制模式被切换到位置控制模式。在位置控制模式中，刻度信号发生器，脉冲发生器，上/下计数器，D / A转换器，加法器和内插器将标尺信号转换成表示头部位置的模拟信号。模拟信号通过差分放大器与位置指示信号进行比较。根据该放大器的输出信号移动磁头。

54. 发明授权

US4631712A Optical disk apparatus with beam energy correction for deviations in inclination 失效
标题翻译：具有光束能量校正的光盘装置倾斜偏差
公开(公告)号：US4631712A
公开(公告)日：1986-12-23
申请号：US627764
申请日：1984-07-05
申请人： Nobuhide Matsubayashi , Hideyuki Kenjyo , Kiichi Kato , Masaharu Sakamoto
发明人： Nobuhide Matsubayashi , Hideyuki Kenjyo , Kiichi Kato , Masaharu Sakamoto
IPC分类号： G11B7/09 , G11B7/0037 , G11B7/095 , G11B7/125 , G11B7/126
CPC分类号： G11B7/126 , G11B7/0037 , G11B7/0956
摘要： An optical disk apparatus has an optical head. The optical head emits a light beam onto an optical disk and forms pits in the optical disk, thereby recording a signal. A detector detects the relative inclination between the optical head and the optical disk and generates a signal corresponding to this relative inclination. A beam intensity correction circuit corrects the intensity of the light beam in accordance with the relative inclination to form proper pits. In one embodiment, the intensity of the light beam is increased when the relative inclination is increased.
摘要翻译：光盘装置具有光头。光头将光束发射到光盘上并在光盘中形成凹坑，从而记录信号。检测器检测光头和光盘之间的相对倾斜度并产生对应于该相对倾角的信号。光束强度校正电路根据相对倾斜度校正光束的强度，形成适当的凹坑。在一个实施例中，当相对倾斜度增加时，光束的强度增加。

55. 发明授权

US4611316A Actuator operating center detecting circuit and optical disk apparatus with the detecting circuit 失效
标题翻译：执行器操作中心检测电路和带检测电路的光盘设备
公开(公告)号：US4611316A
公开(公告)日：1986-09-09
申请号：US561654
申请日：1983-12-15
申请人： Toyoaki Takeuchi , Ken Ohshima , Hideyuki Kenjyo , Yoshiaki Ikeda , Masaharu Sakamoto
发明人： Toyoaki Takeuchi , Ken Ohshima , Hideyuki Kenjyo , Yoshiaki Ikeda , Masaharu Sakamoto
IPC分类号： G11B7/09 , G11B21/10 , G11B7/00
CPC分类号： G11B7/0901 , G11B21/10
摘要： A detecting circuit for detecting an operating center of an actuator of an optical head includes a first comparator for comparing a tracking signal based on a reproduced signal coming from the optical head with a reference voltage approximate to zero voltage level, and a second comparator for comparing the tracking signal of which the DC component is removed with a second reference voltage approximate to zero voltage level. A level inversion of a binary output signal of the first comparator is detected at a level inverting point of a binary output signal of the second comparator. The operating center of the actuator is checked with the detection of the level inversion.
摘要翻译：用于检测光头的致动器的操作中心的检测电路包括：第一比较器，用于将基于来自光头的再生信号的跟踪信号与近似于零电压电平的参考电压进行比较;以及第二比较器，用于比较以第二参考电压将DC分量去除的跟踪信号接近零电压电平。在第二比较器的二进制输出信号的电平反相点检测第一比较器的二进制输出信号的电平反相。执行器的操作中心通过检测电平反转来检查。

56. 发明授权

US4577320A Light power controlling apparatus 失效
标题翻译：光功率控制装置
公开(公告)号：US4577320A
公开(公告)日：1986-03-18
申请号：US575042
申请日：1984-01-30
申请人： Shoji Yoshikawa , Masaharu Sakamoto
发明人： Shoji Yoshikawa , Masaharu Sakamoto
IPC分类号： H01L33/00 , G11B7/1263 , G11B7/1267 , H01S5/06 , H01S5/0683 , H01S3/13
CPC分类号： H01S5/06832 , G11B7/125
摘要： A light power controlling apparatus contains a semiconductor laser and a photosensor for receiving part of light emitted from the semiconductor laser to produce a corresponding electrical signal. The semiconductor laser is connected to first and second current circuits. The first current circuit averages a voltage signal based on the electrical signal of the photosensor by a first low-pass filter, thereby to have a detected voltage. The detected voltage is compared with a desired voltage by an error amplifier. The error amplifier produces a signal representing a difference between the detected voltage and the desired voltage. The difference signal is integrated by an integrator. According to the integrated signal, the first current circuit supplies a forward current to the semiconductor laser. The second current circuit is set at a peak power value in a modulating mode according to a voltage signal of a peak power setting member. The second current circuit supplies to the semiconductor laser a forward current according to a modulating signal, with superposing on the forward current of the first current circuit. The modulating signal is averaged by a second low pass filter. A voltage representing the product of the averaged value and the peak power value is added to the desired value. The sum voltage is then supplied to the error amplifier where it is compared with the detected voltage.
摘要翻译：光功率控制装置包含半导体激光器和用于接收从半导体激光器发射的一部分光以产生相应的电信号的光电传感器。半导体激光器连接到第一和第二电流电路。第一电流电路根据光传感器的电信号通过第一低通滤波器平均电压信号，从而具有检测电压。通过误差放大器将检测到的电压与期望的电压进行比较。误差放大器产生表示检测到的电压和期望电压之间的差的信号。差分信号由积分器积分。根据积分信号，第一电流电路向半导体激光器提供正向电流。根据峰值功率设定部件的电压信号，将第二电流电路设定在调制模式的峰值功率值。第二电流电路根据调制信号向半导体激光器提供正向电流，并叠加在第一电流电路的正向电流上。调制信号由第二低通滤波器平均。表示平均值和峰值功率值的乘积的电压被加到期望值。然后将和电压提供给误差放大器，在其中与检测到的电压进行比较。

57. 发明授权

US4505585A System for detecting defects on an optical surface 失效
标题翻译：用于检测光学表面上的缺陷的系统
公开(公告)号：US4505585A
公开(公告)日：1985-03-19
申请号：US362680
申请日：1982-03-29
申请人： Shoji Yoshikawa , Ken Ohshima , Hiroshi Kodama , Kunio Yamamiya , Masaharu Sakamoto , Kiichi Kato
发明人： Shoji Yoshikawa , Ken Ohshima , Hiroshi Kodama , Kunio Yamamiya , Masaharu Sakamoto , Kiichi Kato
IPC分类号： G01N21/84 , G01N21/88 , G01N21/95 , G06T7/00 , G11B7/0037 , G01B11/30 , G06F15/20
CPC分类号： G01N21/9506 , G11B7/00375 , G01N2021/8864 , G01N21/9501
摘要： In a system for detecting defects on an optical surface, a disk to be inspected is mounted on a turntable, and is attracted on the surface of the turntable. On the disk is provided an optical head having an objective lens located at its focal point on the surface of the disk. A laser beam emitted from a laser unit is projected through the optical head onto the disk, is reflected on the disk, and is then directed through the optical head to a photo detector. The optical head is moved in the radial direction of the disk as the turntable is rotated, and the disk is helically scanned by the laser beam. Only a defect signal is extracted from an electrical signal generated from the photo detector in a defect signal generator. The defect signal is compared in a data processing unit, and is converted to defect information of different size. When it is judged that a prescribed region on the surface of the disk is scanned by a position signal from a position sensor for detecting the position of the optical head, the data processing unit generates an address, and the defect information is stored in each size in specific assigned locations of the RAM. The defect information thus stored is displayed on a CRT or is printed out by a printer.
摘要翻译：在用于检测光学表面上的缺陷的系统中，待检查的盘安装在转盘上，并且被吸引在转台的表面上。在光盘上设置有一个光学头，该光学头具有位于其表面上的焦点处的物镜。从激光单元发射的激光束通过光头投影到盘上，在盘上被反射，然后被引导通过光头到光检测器。当转盘旋转时，光头在盘的径向上移动，并且盘被激光束螺旋扫描。在缺陷信号发生器中仅从光电检测器产生的电信号中提取缺陷信号。在数据处理单元中比较缺陷信号，并将其转换为不同大小的缺陷信息。当通过来自用于检测光头的位置的位置传感器的位置信号来判断盘的表面上的规定区域被扫描时，数据处理单元生成地址，并且以每个尺寸存储缺陷信息在RAM的特定分配位置。由此存储的缺陷信息显示在CRT上，或由打印机打印出来。

58. 发明授权

US4499514A Disc drive apparatus 失效
标题翻译：盘驱动装置
公开(公告)号：US4499514A
公开(公告)日：1985-02-12
申请号：US362614
申请日：1982-03-29
申请人： Kunio Yamamiya , Hiroshi Kodama , Ken Ohshima , Shoji Yoshikawa , Kiichi Kato , Masaharu Sakamoto
发明人： Kunio Yamamiya , Hiroshi Kodama , Ken Ohshima , Shoji Yoshikawa , Kiichi Kato , Masaharu Sakamoto
IPC分类号： G11B17/028 , G11B19/20 , G11B23/00 , G11B25/04 , G11B5/012
CPC分类号： G11B17/0282 , G11B19/2009 , G11B23/00 , G11B25/043
摘要： A disc drive apparatus for driving a disc selected from discs of various diameters with and without a central hole comprises: a turntable with a hole at the center of rotation thereof; a turntable support for rotatably supporting the turntable; a motor for driving the turntable; a centering member to be detachably inserted in the hole of the turntable and for mounting a disc with a central hole; a plurality of elastic disc support members which are coaxial with the center of rotation of the turntable, which extend from the surface of the turntable, and which form a plurality of annular shapes; centering index marks, disposed on the turntable, for centering a disc without a central hole; a vacuum pump; and suction channels, one end of which is open to the surface of the turntable and the other end of which is connected to the vacuum pump, for fixing on some of the disc support members the disc selected from discs of various diameters with and without a central hole and placed on some of said disc support members.
摘要翻译：一种盘驱动装置，用于驱动选自具有和不具有中心孔的各种直径的盘的盘，包括：具有在其旋转中心的孔的转台; 用于可旋转地支撑转盘的转盘支撑件; 用于驱动转台的电机; 定心构件可拆卸地插入转盘的孔中并用于安装具有中心孔的盘; 与转盘的旋转中心同轴的多个弹性盘支撑构件，其从转台的表面延伸并且形成多个环形形状; 设置在转盘上的定心折痕标记，用于使没有中心孔的圆盘定心; 真空泵; 以及抽吸通道，其一端通向转台的表面，另一端连接到真空泵，用于将一些盘支撑件固定在盘片上，该碟片选自具有和不具有中心孔并放置在一些所述盘支撑构件上。

59. 发明授权

US4430630A Tuning circuit 失效
标题翻译：调谐电路
公开(公告)号：US4430630A
公开(公告)日：1984-02-07
申请号：US322839
申请日：1981-11-19
申请人： Masaharu Sakamoto
发明人： Masaharu Sakamoto
IPC分类号： H03H5/12 , H03J3/18 , H03J3/20
CPC分类号： H03H5/12 , H03J3/185
摘要： To suppress a fluctuation in resonance frequency caused by an input signal voltage in a tunable circuit, a respective capacitor is connected to each of two variable capacitance diodes connected in series-opposition.
摘要翻译：为了抑制由可调谐电路中的输入信号电压引起的谐振频率的波动，将相应的电容器连接到串联连接的两个可变电容二极管中的每一个。

60. 发明授权

US4094064A Shearing tool for synthetic resin tubes 失效
标题翻译：合成树脂管剪切工具
公开(公告)号：US4094064A
公开(公告)日：1978-06-13
申请号：US787577
申请日：1977-04-14
申请人： Hideichi Nishikawa , Masaharu Sakamoto
发明人： Hideichi Nishikawa , Masaharu Sakamoto
IPC分类号： B26B13/16 , B26B13/26 , B26B13/00
CPC分类号： B26B13/16 , B26B13/26
摘要： A shearing tool for synthetic resin tubes in which a lower jaw is connected to the leading end of an upper handle portion, a lower handle portion is pivoted at the leading end to the rear and lower end of said lower jaw, an upper jaw or shearing blade having a cutting edge is pivoted in an intermediate position to said upper handle portion above the pivot connection of said lower jaw to said lower handle portion, said lower jaw is provided with an arcuate tube receiving recess in the upper surface thereof, an opening is provided in forward portion of said upper handle portion extending therefrom to the leading end of said lower jaw for receiving said upper jaw, a connection link is connected between the rear end portion of said blade interposed between said upper and lower handle portions and the lower handle portion in a position rearwardly of said pivot connection of the lower jaw to said lower handle portion for urging said cutting edge toward said tube receiving recess when said upper and lower handle portions are pivoted toward each other and a spring is provided for normally urging said upper and lower handle portions away from each other when said tool is in its non-operative position.
摘要翻译：一种用于合成树脂管的剪切工具，其中下钳口连接到上把手部分的前端，下手柄部分在前端枢转到所述下钳口的后端和下端，上钳口或剪切具有切割刃的刀片在中间位置处枢转到所述上手柄部分在所述下钳口的枢转连接件上方到所述下手柄部分处，所述下钳口在其上表面中设置有弓形管容纳凹部，设置在所述上把手部分的前部，从其延伸到所述下钳口的前端以接收所述上钳口，连接杆连接在插在所述上手柄部分和下把手部分之间的所述刀片的后端部分之间，部分位于所述下钳口的所述枢转连接的后方的位置到所述下把手部分，用于当所述向上的所述向上推动所述切削刃朝向所述管接收凹部每个和下部手柄部分彼此枢转，并且提供弹簧，用于当所述工具处于其非操作位置时正常地将所述上部和下部手柄部分彼此远离地推动。

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