SERVICE BOARD AND COMMUNICATION DEVICE
    3.
    发明公开

    公开(公告)号:US20240012214A1

    公开(公告)日:2024-01-11

    申请号:US18471352

    申请日:2023-09-21

    IPC分类号: G02B6/42

    CPC分类号: G02B6/4278 G02B6/4281

    摘要: A service board includes a flexible board, at least one chip, and at least one optical cage layer. Each optical cage layer includes a plurality of optical cages. Each optical cage has an opening that faces a panel side and that is configured to connect to an optical module. The optical cage includes a housing and a plurality of signal pins. One end of the flexible board is electrically connected to tail ends of the plurality of signal pins, and another end of the flexible board is electrically connected to one chip, thereby shortening a connection path between the optical module and the chip, and reducing a link loss. Therefore, integration of the service board is improved, assembly is convenient, and a high-density connection and a simplified design of the service board are implemented, so that the service board is applicable to a high-density and high-speed transmission scenario.

    LIGHT GUIDING MEMBER AND FINGERPRINT IDENTIFICATION MODULE HAVING THE SAME

    公开(公告)号:US20230245489A1

    公开(公告)日:2023-08-03

    申请号:US17884160

    申请日:2022-08-09

    IPC分类号: G06V40/12 G02B6/42

    CPC分类号: G06V40/12 G02B6/4281 G02B6/42

    摘要: A fingerprint identification module includes a light guiding member, a flexible circuit board, two light emitting members, and a fingerprint identification chip. The light guiding member includes a bottom and a protruding edge. The protruding edge surrounds to form a first space. A first through-hole is formed on the bottom. The flexible circuit board is disposed in the first space and has a first portion, a second portion, a third portion, and a fourth portion connected in sequence. The first portion goes out of the light guiding member through the first through-hole. The third portion faces a direction opposite to the bottom. The second portion and the fourth portion face the bottom of the light guiding member. The light emitting members are disposed on the flexible circuit board and face the light guiding member. The fingerprint identification chip is disposed on the third portion of the flexible circuit board.

    TRANSMITTER OPTICAL SUBASSEMBLY AND OPTICAL MODULE

    公开(公告)号:US20190237934A1

    公开(公告)日:2019-08-01

    申请号:US16243107

    申请日:2019-01-09

    摘要: A modulator integrated laser has a laser portion for emitting light and a modulation portion for modulating the light by an electric field absorption effect. The modulator integrated laser has a semiconductor substrate of a conductivity type in which the laser portion and the modulation portion are integrated. An impedance element with inductance and capacitance connected in parallel. The impedance element has a self-resonant characteristic exhibiting the highest impedance at a self-resonant frequency. The laser portion has first and second electrodes for a direct current voltage to be applied therebetween. The modulation portion has third and fourth electrodes for an alternate current voltage to be applied therebetween. The second electrode and the fourth electrode are electrically connected to each other through the semiconductor substrate. The impedance element is connected in series to the first electrode to minimize a flow of an alternate current.