Circuit board and system for testing the same
    1.
    发明授权
    Circuit board and system for testing the same 失效
    电路板和系统用于测试相同

    公开(公告)号:US06624652B2

    公开(公告)日:2003-09-23

    申请号:US09845279

    申请日:2001-05-01

    IPC分类号: G01R3126

    摘要: The CPU of a test apparatus sends, to a subject test board, a test command containing an address in an address space where circuit blocks of the subject test board are mapped and a command code specifying an operation to be performed to the address. Test program executed by the CPU of the subject test board allow the CPU to extract the address and the command code included in the test command from the test apparatus and then to perform the operation specified by the command code to the address.

    摘要翻译: 测试装置的CPU向主题测试板发送包含映射了被测试板的电路块的地址空间中的地址的测试命令和指定要对地址执行的操作的命令代码。 由主体测试板的CPU执行的测试程序允许CPU从测试设备中提取测试命令中包含的地址和命令代码,然后执行命令代码指定的操作到地址。

    Optical system for optical disk drive
    4.
    发明授权
    Optical system for optical disk drive 失效
    光盘驱动器光学系统

    公开(公告)号:US06529465B2

    公开(公告)日:2003-03-04

    申请号:US09795458

    申请日:2001-03-01

    IPC分类号: G11B700

    摘要: Disclosed is an optical system for an optical disk drive for reading/writing data from/in an optical disk. The optical system includes a light source emitting a parallel laser beam, a deflector having a rotatable mirror surface. The parallel laser beam emitted by the light source is incident on the mirror surface of the deflector and is deflected towards an objective lens system which faces the optical disk. A relay lens system is provided between the deflector and the objective lens system such that the mirror surface and a front principal plane of the objective lens system have a substantially conjugate relationship.

    摘要翻译: 公开了一种用于从光盘读取/写入数据的光盘驱动器的光学系统。 光学系统包括发射平行激光束的光源,具有可旋转镜面的偏转器。 由光源发射的平行激光束入射在偏转器的镜面上,朝向面向光盘的物镜系统偏转。 在偏转器和物镜系统之间提供中继透镜系统,使得物镜系统的镜面和前主平面具有基本上共轭的关系。

    Electrical contact
    5.
    发明授权
    Electrical contact 失效
    电接触

    公开(公告)号:US4087668A

    公开(公告)日:1978-05-02

    申请号:US649517

    申请日:1976-01-15

    IPC分类号: H01H1/38 H01H1/42 H01H1/50

    CPC分类号: H01H1/38

    摘要: An electrical contact with a fixed conductor and a movable conductor, comprises a plurality of plate springs, a plurality of contacts, the plate springs and the contacts being mounted into a single unit with an arrangement of those members in a substantial orthogonal relation to each other. The opposite ends of each of the plate springs being supported so as to provide an arrangement of contacts spaced at a fixed interval.

    摘要翻译: 与固定导体和可移动导体的电接触包括多个板簧,多个触点,板簧和触点安装成单个单元,其中这些构件的布置基本上彼此正交关系 。 每个板簧的相对端被支撑以提供以固定间隔隔开的触点的布置。

    Optical disc drive
    7.
    发明授权
    Optical disc drive 失效
    光盘驱动器

    公开(公告)号:US06341106B1

    公开(公告)日:2002-01-22

    申请号:US09186202

    申请日:1998-11-04

    IPC分类号: G11B700

    摘要: Disclosed is an optical disc drive. The optical disc drive is provided with an arm member carrying an objective optical system and a light emitting system. The arm member is rotatable about an axis at one end portion thereof. On the other end portion of the arm member, the objective optical system is mounted. A detecting system is further provided for receiving light reflected by the optical disc via the objective optical system. The detecting system detects data related to an orientation of a beam spot formed by the reflected beam on its light receiving surface. Further provided is a control system which determines a current position of the arm member based on the data related to the orientation of the beam spot.

    摘要翻译: 公开了一种光盘驱动器。 光盘驱动器设置有承载物镜光学系统和发光系统的臂构件。 臂构件在其一个端部处可绕轴线旋转。 在臂构件的另一端部安装物镜光学系统。 还提供一种检测系统,用于经由物镜光学系统接收由光盘反射的光。 检测系统检测与其受光面上的反射光束形成的束斑的取向有关的数据。 还提供了一种控制系统,其基于与束斑的取向相关的数据来确定臂构件的当前位置。