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    3.
    发明专利
    未知

    公开(公告)号：DE69027522T2

    公开(公告)日：1997-01-23

    申请号：DE69027522

    申请日：1990-11-27

    Applicant: IBM

    Inventor： BLOCK TIMOTHY ROY ,  EBLER MARCIA BERG ,  FREITAG LADD WILLIAM ,  HEILING GERALD MICHAEL ,  HOLTER SPENCER CLINTON ,  KARST DENNIS LEON ,  SILJENBERG DAVID WARREN ,  SODERSTROM RONALD LEE ,  TRNKA JOHN THOMAS

    IPC: H04B10/12 ,  G02B6/38 ,  H04B10/135 ,  H04B10/14 ,  H04B10/155 ,  H04B10/2581 ,  H04B10/00 ,  G02B6/42

    Abstract: An optical fiber link card communication module, and process for fabricating the module, where the module provides a parallel electrical interface to the user, facilitates high speed serial transmission of data over an optical data link, and contains a plurality of converters (130,131) for performing conversions between both electrical and optical signals. The module further includes edge mounted optical components having leads mounted on the surface of a card (as opposed to standard pin-in-hole type leads) to minimize lead capacitance and inductance from the optical components to the card electronics, on board card control means for the converters and safety shut down means on the same card as the electrical and optical components. A preferred embodiment of the invention contemplates fabricating the optical communication module on a single multilayer card with all the transmitter electrical components being located on one side of the card, all receiver electrical components being located on the other side of the card, and the transmitter and receiver components being separated by shielding layers in the card. By using two transmitter/receiver pairs (with the transmitters and receivers being located on respective sides of the card) an embodiment of the invention provides for double full duplex communications.

    OPTICAL FIBER LINK CONTROL SAFETY SYSTEM
    5.
    发明专利
    OPTICAL FIBER LINK CONTROL SAFETY SYSTEM 未知

    公开(公告)号：AU6787590A

    公开(公告)日：1991-07-11

    申请号：AU6787590

    申请日：1990-12-07

    Applicant: IBM

    Inventor： HEILING GERALD MICHAEL ,  KNODEL DAVID ARDEL ,  PETERSON MICHAEL JOSEPH ,  SCHUELKE BRIAN ANDREW ,  SILJENBERG DAVID WARREN ,  SODERSTROM RONALD LEE ,  TRNKA JOHN THOMAS

    IPC: G02B6/00 ,  A61B18/20 ,  B23K26/08 ,  H04B10/08

    Abstract: A fully redundant safety interlock system is provided comprising, means for detecting the loss of light on a fiber optic link; controller means, coupled to said means for detecting, for determining the safety condition of the link based on the output of said means for detecting, and for controlling the radiant energy output of an optical transmitter, based on the determined safety condition, via redundant output control signals; and means, coupled to said controller means, responsive to said redundant control signals, for interconnecting the output of said controller means to transmitter drive circuitry to thereby adjust the radiant energy output by the transmitter. According to a preferred embodiment of the invention, the controller means includes an electronic implementation of two independent state machines, each of which redundantly determines the connection state of the optical link between two optical link cards. The output from the state machines is used to adjust (for example, turn on and turn off) the drive circuitry for the transmitter via fully redundant paths which carry the redundant control signals.

    8.
    发明专利
    未知

    公开(公告)号：DE69027522D1

    公开(公告)日：1996-07-25

    申请号：DE69027522

    申请日：1990-11-27

    Applicant: IBM

    Inventor： BLOCK TIMOTHY ROY ,  EBLER MARCIA BERG ,  FREITAG LADD WILLIAM ,  HEILING GERALD MICHAEL ,  HOLTER SPENCER CLINTON ,  KARST DENNIS LEON ,  SILJENBERG DAVID WARREN ,  SODERSTROM RONALD LEE ,  TRNKA JOHN THOMAS

    IPC: H04B10/12 ,  G02B6/38 ,  H04B10/135 ,  H04B10/14 ,  H04B10/155 ,  H04B10/2581 ,  H04B10/00 ,  G02B6/42

    Abstract: An optical fiber link card communication module, and process for fabricating the module, where the module provides a parallel electrical interface to the user, facilitates high speed serial transmission of data over an optical data link, and contains a plurality of converters (130,131) for performing conversions between both electrical and optical signals. The module further includes edge mounted optical components having leads mounted on the surface of a card (as opposed to standard pin-in-hole type leads) to minimize lead capacitance and inductance from the optical components to the card electronics, on board card control means for the converters and safety shut down means on the same card as the electrical and optical components. A preferred embodiment of the invention contemplates fabricating the optical communication module on a single multilayer card with all the transmitter electrical components being located on one side of the card, all receiver electrical components being located on the other side of the card, and the transmitter and receiver components being separated by shielding layers in the card. By using two transmitter/receiver pairs (with the transmitters and receivers being located on respective sides of the card) an embodiment of the invention provides for double full duplex communications.

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