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84 条记录 (耗时 0.01 秒)

    DIGITAL OPTICAL RECEIVER WITH INSTANTANEOUS JOSEPHSON CLOCK RECOVERY CIRCUIT
    81.
    发明公开
    DIGITAL OPTICAL RECEIVER WITH INSTANTANEOUS JOSEPHSON CLOCK RECOVERY CIRCUIT 失效
    与Josephson电路中的数字光接收机即时卒中恢复

    公开(公告)号：EP0922333A1

    公开(公告)日：1999-06-16

    申请号：EP97939484.0

    申请日：1997-08-21

    申请人： CONDUCTUS, INC.

    发明人： KAPLOUNENKO, Vsevolod ,  DUBASH, Noshir, B. ,  ZHANG, Yongming ,  GOSHAL, Uttam

    IPC分类号： H03K3 ,  H03L7 ,  H04B10 ,  H04L7 ,  H03B15

    CPC分类号： H03L7/24 ,  H03B15/00 ,  H03K3/38

    摘要： A digital optical receiver and clock recovery circuit for use in detecting and retiming optical data transmitted at rates up to and exceeding 40 Gb/s. The receiver is made, in part, of superconducting Josephson junctions. The receiver includes an optical signal detector, an SFQ (single flux quantum) transition detector for converting the signal from the photodetector into a stream of single flux quantum signals, and a clock recovery circuit. The clock recovery circuit includes a superconducting ring oscillator in which an SFQ pulse rotates and provides a clock signal at an output of the oscillator. When a pulse from the stream of single flux quantum pulses arrives from the transition detector, two pulses are generated in the ring oscillator. One of the pulses eliminates the rotating SFQ pulse and the second pulse replaces the rotating SFQ pulse, thereby recovering the phase of the clock signal in one bit.

    High frequency system including a superconductive device
    82.
    发明公开
    High frequency system including a superconductive device 失效
    Hochfrequenzsystem mit einer supraleitenden Vorrichtung

    公开(公告)号：EP0744827A1

    公开(公告)日：1996-11-27

    申请号：EP96107676.7

    申请日：1996-05-14

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD

    发明人： Mizuno, Koichi ,  Enokihara, Akira ,  Higashino, Hidetaka ,  Setsune, Kentaro

    IPC分类号： H03D9/06 ,  H03B15/00

    CPC分类号： H03B15/003 ,  H03B2200/0016 ,  H03B2200/0076 ,  H03D9/06 ,  H03D2200/0076 ,  H03D2200/0084

    摘要： An effective high frequency oscillator is made of a plurality of Josephson devices (31). A high frequency converter as a high frequency circuit is made of the high frequency oscillator, nonlinear superconductor devices, and transmission line. Josephson devices (31) are connected in parallel to make a superconductor module (J1-J4). Then superconductive modules (J1-J4) are connected in series for high frequency via a phase determining circuit such as a thin film type capacitor (C1-C3) to make the high frequency oscillator. Consequently, the high frequency oscillator is used as a local oscillator for a frequency converter. The high frequency system comprises a high frequency package housing a high frequency circuit, a cooling unit including a low temperature stage in thermal contact with the high frequency package, and a shielding case for housing the high frequency circuit and the low temperature stage. The high frequency system of the present invention provides a small-sized and power-saving high frequency circuit having operational stability.

    摘要翻译： 有效的高频振荡器由多个约瑟夫逊器件（31）制成。 作为高频电路的高频变频器由高频振荡器，非线性超导体器件和传输线构成。 约瑟夫森装置（31）并联连接以制造超导体模块（J1-J4）。 然后超导模块（J1-J4）通过诸如薄膜型电容器（C1-C3）的相位确定电路串联连接以产生高频振荡器。 因此，高频振荡器被用作变频器的本地振荡器。 高频系统包括容纳高频电路的高频封装，包括与高频封装热接触的低温级的冷却单元和用于容纳高频电路和低温级的屏蔽壳。 本发明的高频系统提供了具有操作稳定性的小型和省电的高频电路。