23.
    发明专利
    未知

    公开(公告)号:DE69121200D1

    公开(公告)日:1996-09-05

    申请号:DE69121200

    申请日:1991-05-06

    Abstract: A light activated switching device is disclosed in which the receipt of a light signal is used to switch a light beam between two output ports. The input light beam is reflected from an interface between two regions having different indices of refraction when the light signal is present. The reflected light beam then exits through the first output port. In the absence of the light signal, the two regions have the same index of refraction, and the light beam passes through both regions and exits through the second output port.

    Light actuated optical switching device

    公开(公告)号:AU641335B2

    公开(公告)日:1993-09-16

    申请号:AU7985391

    申请日:1991-05-06

    Abstract: A light activated switching device is disclosed in which the receipt of a light signal is used to switch a light beam between two output ports. The input light beam is reflected from an interface between two regions having different indices of refraction when the light signal is present. The reflected light beam then exits through the first output port. In the absence of the light signal, the two regions have the same index of refraction, and the light beam passes through both regions and exits through the second output port.

    ELECTRICAL-OPTICAL INTERFACE DEVICE

    公开(公告)号:AU2483892A

    公开(公告)日:1993-03-16

    申请号:AU2483892

    申请日:1992-08-17

    Abstract: Devices for converting digital data into a light pulse train and decoding such a pulse train are disclosed. The light pulse generating device generates a train of light pulses having a pattern determined by a numerical value represented by a plurality of binary bits. The light pulse train generating device stores the bits in a register. Each cell of the register is connected to a light switching device that will interrupt a first light beam in response to a light signal if the value stored in the cell is a logical one. If the value is a logical 0, the interruption will not occur. The decoding device utilizes a plurality of light activated switches to route individual pulses in the light pulse train to different photodetectors. The light activated switching devices avoid the delays inherent in electrically activated switching devices.

    LIGHT ACTUATED OPTICAL SWITCHING DEVICE

    公开(公告)号:CA2082938A1

    公开(公告)日:1991-11-15

    申请号:CA2082938

    申请日:1991-05-06

    Abstract: 2082938 9118305 PCTABS00008 A light activated switching device (10) is disclosed in which the receipt of a light signal is used to switch a light beam between two output ports (14) and (16). The input light beam is reflected from an interface between two regions having different indices of refraction when the light signal is present. The reflected light beam then exits through the first output port (16). In the absence of the light signal, the two regions have the same index of refraction, and the light beam passes through both regions and exits through the second output port (14).

    Improved non-destructively read ferroelectric memory cell

    公开(公告)号:AU5186096A

    公开(公告)日:1996-10-08

    申请号:AU5186096

    申请日:1996-03-19

    Abstract: An improved ferroelectric FET structure in which the ferroelectric layer is doped to reduce retention loss. A ferroelectric FET according to the present invention includes a semiconductor layer having first and second contacts thereon, the first and second contacts being separated from one another. The ferroelectric FET also includes a bottom electrode and a ferroelectric layer which is sandwiched between the semiconductor layer and the bottom electrode. The ferroelectric layer is constructed from a perovskite structure of the chemical composition ABO3 wherein the B site comprises first and second elements and a dopant element that has an oxidation state greater than +4 in sufficient concentration to impede shifts in the resistance measured between the first and second contacts with time. The ferroelectric FET structure preferably comprises Pb in the A-site. The first and second elements are preferably Zr and Ti, respectively. The preferred B-site dopants are Niobium, Tantalum, and Tungsten at concentrations between 1% and 8%.

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