公开(公告)号：US5249172A

公开(公告)日：1993-09-28

申请号：US854366

申请日：1992-03-19

申请人： Shoji Hagihara ,  Masatsugu Tanji ,  Takafumi Sugano ,  Wataru Masuda ,  Hironori Masuda ,  Hideaki Inoue

发明人： Shoji Hagihara ,  Masatsugu Tanji ,  Takafumi Sugano ,  Wataru Masuda ,  Hironori Masuda ,  Hideaki Inoue

IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/125 ,  G11B19/04 ,  G11B20/18 ,  G11B27/36 ,  G11B33/14

CPC分类号： G11B7/126 ,  G11B19/04 ,  G11B20/182 ,  G11B27/36 ,  G11B33/144

摘要： A write laser power setting device for setting a write laser power for writing data on a recording medium, includes first and second oscillators and for producing carrier signals having high frequencies f1 and f2. The carrier signals are added with each other to produce a sum signal which is applied to a laser driver for producing a laser drive signal. The power of the laser drive signal is changed to various levels. Using the laser drive signal, the write/read head writes test signals at preselected areas on the recording medium such that different writing power levels are applied to different preselected areas, respectively. After writing the test signals, the write/read head reads the recorded test signals. From the read signal, an unwanted signal having a frequency f1-f2 is filtered, and the level of the unwanted signal is detected and stored. A minimum level of the stored levels is selected, and a preselected area at which the minimum level reading is obtained is detected. Then, the writing laser power is set at a writing power level corresponding to the level used for writing the test signal in the detected preselected area.

公开(公告)号：US5371605A

公开(公告)日：1994-12-06

申请号：US104937

申请日：1993-08-12

申请人： Wataru Masuda ,  Hironori Masuda ,  Takafumi Sugano

发明人： Wataru Masuda ,  Hironori Masuda ,  Takafumi Sugano

IPC分类号： G11B27/034 ,  G11B27/10 ,  H04N5/85 ,  H04N5/76

CPC分类号： G11B27/10 ,  G11B27/034 ,  G11B27/105 ,  G11B2220/20 ,  H04N5/85

摘要： A method and an apparatus having a memory device for recording a time-varying image in an optical information record medium having an address of a code track corresponding to the image and reproducing the image therefrom, includes the steps of storing data into the memory device of the relationship between the address of the code track and an address of a time code in correspondence with the image, inputting the address of the time code in correspondence with the image to be recorded or reproduced, converting the inputted address of the time code into the address of the code track based on the data stored in the storing step, and accessing to the medium based on the address of the code track obtained by the converting step to record or reproduce the image in correspondence with the inputted address of the time code.

摘要翻译： 一种具有用于在具有与图像对应的代码轨道的地址并再现其图像的光学信息记录介质中记录时变图像的存储装置的方法和装置，包括以下步骤：将数据存储到 将代码轨道的地址与与图像对应的时间码的地址之间的关系，输入与要记录或再现的图像对应的时间码的地址，将输入的时间码地址转换为 基于存储在存储步骤中的数据的代码轨道的地址，以及基于通过转换步骤获得的代码轨迹的地址来访问媒体，以与输入的时间码地址对应地记录或再现图像。

公开(公告)号：US4188101A

公开(公告)日：1980-02-12

申请号：US810866

申请日：1977-06-28

申请人： Hironori Masuda

发明人： Hironori Masuda

IPC分类号： G03B21/00 ,  G03B1/48

CPC分类号： G03B21/001

摘要： A rotatable slide holder adapted for use in slide projectors is disclosed. The slide holder includes first and second spaced members adapted to grip and maintain a slide to be projected in the space therebetween. Spring loaded screws between the first and second members for rotationally fixing the members relative to one another and for biasing the members toward one another. The first and second spaced members are rotationally coupled to the body of the projector so that the members can rotate about an axis perpendicular to a slide positioned in the space between the members. A drive motor is mounted on the projector body and is coupled to the slide maintaining members for causing their rotation. In a first embodiment of the invention one of the spaced members has a circular cross-section and is formed with four uniformly spaced detents in the outer surface thereof. The drive motor switch is a pantograph, one leg joint of which is positioned to cooperate with the detents. Removal of the leg joint from the detent permits rotation of the slide holder and simultaneously activates the drive motor. The reinsertion, after a 90 degree rotation of the slide holder, of the pantagraph joint into a detent rotationally locks the slide holder and deactivates the drive motor. In a second embodiment of the invention one member of the slide holder is a cam wheel and the motor activating switch includes a cam roller. Activation of the drive motor causes the cam wheel to rotate thereby uring the cam roller out of a cam wheel detent. The movement of the cam roller into the following cam wheel detent deactivates the drive motor.

摘要翻译： 公开了一种适用于滑动投影机的可旋转滑动架。 滑动架具有第一和第二隔开的构件，其适于夹持和保持滑动件以便在其间的空间中被突出。 在第一和第二构件之间的弹簧加载螺钉，用于相对于彼此旋转地固定构件并且用于将构件朝向彼此偏置。 第一和第二间隔构件旋转地联接到投影仪的主体，使得构件可以围绕垂直于位于构件之间的空间中的滑块的轴线旋转。 驱动马达安装在投影机主体上，并与滑动保持构件联接以使其旋转。 在本发明的第一实施例中，间隔开的构件中的一个具有圆形横截面并且在其外表面中形成有四个均匀间隔的棘爪。 驱动电动机开关是一个集电弓，其一个腿部接头定位成与掣子配合。 从止动器移除腿关节允许滑动夹具旋转并同时启动驱动马达。 将滑块保持架90度旋转后的重新插入旋转地锁定滑块保持器并使驱动马达停用。 在本发明的第二实施例中，滑动保持器的一个构件是凸轮，并且马达启动开关包括凸轮滚子。 驱动马达的激活导致凸轮从而使凸轮滚轮从凸轮轮定位器转动。 凸轮滚轮进入后续凸轮轮制动器的动作使驱动电机无效。