Operation assuring structure of electronic circuit board in connector
for said circuit board
    2.
    发明授权
    Operation assuring structure of electronic circuit board in connector for said circuit board 失效
    操作确保用于所述电路板的连接器中的电子电路板的结构

    公开(公告)号:US5944540A

    公开(公告)日:1999-08-31

    申请号:US95754

    申请日:1998-06-11

    摘要: An operation assuring structure of an electronic circuit board in a connector for the electronic circuit board including an insert plate portion disposed on an end portion of an electronic circuit board and adapted to be inserted into a receiving port of a connector, a plurality of signal electronic pads arranged on a surface of the insert plate portion, and a plurality of signal contacts disposed within the receiving port of the connector and adapted to be contacted to the signal electrode pads, wherein a cut-off grounding contact, which is not conductive to the electronic circuit board, is interposed between the signal contacts within the receiving port, and the cut-off grounding contact has a length dimension enough to extend in parallel to the signal contacts and to interpose a distal end thereof between the signal electrode pads on the insert plate portion.

    摘要翻译: 一种用于电子电路板的连接器中的电子电路板结构的操作,包括设置在电子电路板的端部上并适于插入连接器的接收端口的插入板部分,多个信号电子 布置在插入板部分的表面上的焊盘以及设置在连接器的接收端口内并且适于与信号电极焊盘接触的多个信号触点,其中截止接地触点对于 电子电路板插入在接收端口内的信号触点之间,并且截止接地触头具有足够的长度尺寸以足以平行于信号触头延伸并且将其远端插入到插入件上的信号电极焊盘之间 板部分。

    OPTICAL DISC DEVICE
    4.
    发明申请
    OPTICAL DISC DEVICE 失效
    光盘设备

    公开(公告)号:US20090279403A1

    公开(公告)日:2009-11-12

    申请号:US12296822

    申请日:2007-03-19

    IPC分类号: G11B7/00 G11B7/135

    摘要: Light emitted from a radiation light source 1 passes through a diffraction grating 3a and is separated into transmitted light a, +1st order diffracted light b, and −1st order diffracted light c. The transmitted light a, +1st order diffracted light b, and −1st order diffracted light c are collected through an objective lens 7 on tracks on the signal plane 8a of an optical disc 8 in a partially overlapped state. Light reflected by the tracks on the signal plane 8a passes through the objective lens 7 and is incident upon light diverging means 13a. Subsequently, depending on the location of incidence, light corresponding to the transmitted light “a” diverges into two light beams that are respectively incident upon light detection regions A1, A2, light corresponding to the +1st order diffracted light “b” diverges into two light beams that are respectively incident upon light detection regions B1, B2, and light corresponding to the −1st order diffracted light “c” diverges into two light beams that are respectively incident upon light detection regions C1, C2. A tracking error signal associated with the tracks of the optical disc 8 is generated by combining signals detected in the light detection regions A1, A2, B1, B2, C1, and C2. Based on the above-described configuration, the influence of lens shift-induced off-track can be cancelled without impairing the detected tracking error signal output even without rotational adjustment of the rectilinear gratings.

    摘要翻译: 从辐射光源1发射的光通过衍射光栅3a并分离为透射光a + 1级衍射光b和-1级衍射光c。 透射光a,+ 1级衍射光b和-1级衍射光c以部分重叠的状态通过物镜7在光盘8的信号平面8a上的轨道上被收集。 由信号平面8a上的轨道反射的光通过物镜7并入射到光发散装置13a上。 随后,根据入射位置,对应于透射光“a”的光分散到分别入射到光检测区域A1,A2的两个光束中,对应于+ 1级衍射光“b”的光分叉成两个 分别入射到光检测区域B1,B2和对应于-1级衍射光“c”的光的光束分叉成分别入射到光检测区域C1,C2的两个光束。 通过组合在光检测区域A1,A2,B1,B2,C1和C2中检测到的信号来产生与光盘8的轨道相关联的跟踪误差信号。 基于上述配置,即使没有直线光栅的旋转调节,也可以消除透镜偏移诱导偏离磁道的影响,而不损害检测到的跟踪误差信号输出。

    OPTICAL DISC DEVICE
    5.
    发明申请
    OPTICAL DISC DEVICE 审中-公开
    光盘设备

    公开(公告)号:US20090028036A1

    公开(公告)日:2009-01-29

    申请号:US12282598

    申请日:2007-03-13

    IPC分类号: G11B7/135

    摘要: The invention permits stable tracking with few control errors, uninfluenced by stray light reflected by signal surfaces other than the signal surface being used for focusing during recording and playback of a multilayer disc. To this end, the optical splitter element of the optical disc device according to the present invention has first areas (21c-24c), which include the location (20) of the optical axis of light incident from the objective lens, and, around the periphery of the first areas, second areas (21a-24a, 21b-24b) positioned at locations displaced from the optical axis. The detection surface (9a) of the photodetector has first detection areas (97, 98) detecting light incident from the first areas and second detection areas (95, 96) detecting light incident from the second areas. The second detection areas are used for detecting tracking error signals. If the optical disc has multiple signal surfaces, light that is reflected by signal surfaces other than the signal surface being used for focusing and is incident on the photodetector from the first areas is not incident on the second detection areas.

    摘要翻译: 本发明允许具有很少控制误差的稳定跟踪,不受在多层盘的记录和重放期间用于聚焦的信号表面以外的信号表面反射的杂散光的影响。 为此,根据本发明的光盘装置的光分路器元件具有第一区域(21c-24c),其包括从物镜入射的光的光轴的位置(20),并且围绕 第一区域的周边,位于偏离光轴的位置的第二区域(21a-24a,21b-24b)。 光检测器的检测表面(9a)具有检测从第一区域入射的光的第一检测区域(97,98)和检测从第二区域入射的光的第二检测区域(95,96)。 第二检测区域用于检测跟踪误差信号。 如果光盘具有多个信号表面,则由信号表面以外的信号表面反射的光被用于聚焦并且从第一区域入射到光电检测器上的光不会入射到第二检测区域。

    Optical information processor and optical element

    公开(公告)号:US06819647B2

    公开(公告)日:2004-11-16

    申请号:US10617168

    申请日:2003-07-10

    IPC分类号: G11B700

    CPC分类号: G11B7/139 G11B7/1353

    摘要: An optical disk device has an aperture of an objective lens in an incoming path of a beam from a semiconductor laser to an optical disk formed larger than an aperture in a return path from the optical disk or an aperture is varied in recording and in reproduction. This configuration improves recording/reproducing ability since light is focused on an optical disk with high numerical aperture. In addition, since reflected light from the optical disk is detected with low numerical aperture, margins for tilt and defocus are not reduced. Furthermore, since unnecessary signal components contained in the reflected light can be eliminated, a S/N (signal-to-noise ratio) of an information signal also increases. Thus, a high-performance optical disk device can be obtained. Alternatively, by varying the aperture of an objective lens in recording and in reproduction, an optical disk device in which recording density and recording quality are increased without deteriorating reproduction quality can be obtained.

    Optical pickup
    8.
    发明授权
    Optical pickup 失效
    光学拾音

    公开(公告)号:US06496453B2

    公开(公告)日:2002-12-17

    申请号:US09817421

    申请日:2001-03-26

    IPC分类号: G11B700

    摘要: An optical pickup has a light source that emits a light beam having a far field pattern being elliptical in cross section; a collimator lens that converts the light beam from the light source into a substantially parallel light beam; a beam shaping element that performs beam shaping by changing a substantial aspect ratio of the far field pattern of the light beam from the collimator lens; light condensing means of condensing the light beam shaped by the beam shaping element on an optical information recording medium; and light detecting means of detecting a light beam reflected at the optical information recording medium. wherein the beam shaping element makes the cross section of the light beam having been shaped close to a circle by compressing the light beam substantially in a direction of a major axis of the elliptical cross section of the far field pattern, and reflects the light beam from the collimator lens to the light condensing means.

    摘要翻译: 光拾取器具有发射具有横截面为椭圆形的远场图案的光束的光源;将来自光源的光束转换为基本上平行的光束的准直透镜;通过以下方式执行光束成形的光束整形元件 改变来自准直透镜的光束的远场图案的实质长宽比;将由光束整形元件成形的光束会聚在光信息记录介质上的聚光装置; 光检测装置,用于检测在光学信息记录介质处反射的光束。光束成形元件通过将光束基本上沿着长轴的方向压缩而使光束的截面形状接近圆形, 远场图案的椭圆截面,并将来自准直透镜的光束反射到聚光装置。

    Optical disc device
    10.
    发明授权
    Optical disc device 失效
    光盘设备

    公开(公告)号:US08045432B2

    公开(公告)日:2011-10-25

    申请号:US12296822

    申请日:2007-03-19

    IPC分类号: G11B7/00

    摘要: Light emitted from a radiation light source 1 passes through a diffraction grating 3a and is separated into transmitted light a and +1st/−1st order diffracted lights b, c. These lights are collected through an objective lens 7 on tracks of an optical disc 8 in a partially overlapped state. Light reflected by the tracks passes through the objective lens 7 and is incident upon light diverging means 13a. Subsequently, light corresponding to the transmitted light “a” diverges into two light beams that are respectively incident upon light detection regions A1, A2, light corresponding to the diffracted lights “b” and “c” respectively diverges into two light beams that are respectively incident upon light detection regions B1, B2, and C1, C2. A tracking error signal associated with the tracks of the optical disc 8 is generated by combining signals detected in the light detection regions A1, A2, B1, B2, C1, and C2.

    摘要翻译: 从辐射光源1发射的光通过衍射光栅3a并分离为透射光a和+ 1 / -1级衍射光b,c。 这些光以部分重叠的状态通过物镜7收集在光盘8的轨道上。 由轨道反射的光通过物镜7并入射到光发散装置13a上。 随后,对应于透射光“a”的光分散入分别入射到光检测区域A1,A2的两个光束,分别对应于衍射光“b”和“c”的光分别发散成两个光束 入射到光检测区域B1,B2和C1,C2。 通过组合在光检测区域A1,A2,B1,B2,C1和C2中检测到的信号来产生与光盘8的轨道相关联的跟踪误差信号。