Process for the synthesis of 5-amino tetrazole derivatives
    12.
    发明授权
    Process for the synthesis of 5-amino tetrazole derivatives 失效
    合成5-氨基四唑衍生物的方法

    公开(公告)号:US5608074A

    公开(公告)日:1997-03-04

    申请号:US359139

    申请日:1994-12-19

    申请人: Jonathan Walker

    发明人: Jonathan Walker

    CPC分类号: C07D409/12 C07D333/70

    摘要: An improved process for the preparation of 3-chlorobenzo[b]thiophene-2-carbonyl chlorides is described where a cinnamic acid is converted in the presence of thionyl chloride and a 4-N,N'-disubstituted aminopyridine in one step to the desired product.

    摘要翻译: 描述了制备3-氯苯并[b]噻吩-2-羰基氯化物的改进方法,其中在亚硫酰氯和4-N,N'-二取代的氨基吡啶存在下将肉桂酸在一步中转化成所需的 产品。

    Method and apparatus for DC power management within multi-channel LNBF
    14.
    发明授权
    Method and apparatus for DC power management within multi-channel LNBF 有权
    多通道LNBF内直流电源管理的方法和装置

    公开(公告)号:US08422982B2

    公开(公告)日:2013-04-16

    申请号:US11277404

    申请日:2006-03-24

    IPC分类号: H04B1/16

    CPC分类号: H04N7/20 H04H20/63 H04H40/90

    摘要: A method and apparatus for energizing a multi-channel LNBF containing multiple LNB(s) the LNBF connected to multiple IRDs. The number of IRDs present is detected. If more than one IRD is present, all LNBs are energized. If only one IRD is detected, power sufficient to supply the LNB the IRD has selected is supplied. Identification of which LNB the single IRD has selected may be determined by monitoring the presence of a desired voltage, frequency tone, and or series of frequency tones.

    摘要翻译: 一种用于激励包含连接到多个IRD的LNBF的多个LNB的多信道LNBF的方法和装置。 检测到IRD的数量。 如果存在多个IRD,则所有LNB都通电。 如果仅检测到一个IRD,则提供足以供应所选IRD的LNB的电力。 单个IRD选择的哪个LNB的识别可以通过监视所需电压,频率音调和/或一系列频率音调的存在来确定。

    VHF ground station selection algorithm
    15.
    发明授权
    VHF ground station selection algorithm 失效
    VHF地面站选择算法

    公开(公告)号:US07184763B2

    公开(公告)日:2007-02-27

    申请号:US10347777

    申请日:2003-01-21

    IPC分类号: H04Q7/20

    摘要: An apparatus, method and computer program for initiating and maintaining a virtual connection between a mobile radio and a ground station, including receiving a plurality of ground station radio signals from a mobile radio; accumulating over a time period signal quality information relative to each of the ground station radio signals; determining a signal quality parameter trend for each of the ground station radio signals as a function of the accumulated signal quality information; deciding to switch a current virtual connection between the mobile radio and a first ground station to a virtual connection between the mobile radio and a different second ground station as a function of comparing the signal quality parameter to a pre-selected minimum acceptable threshold signal quality parameter; and switching the virtual connection of the mobile radio from the first ground station to the second ground station.

    摘要翻译: 一种用于启动和维护移动无线电和地面站之间的虚拟连接的装置,方法和计算机程序,包括从移动无线电接收多个地面站无线电信号; 在相对于每个地面站无线电信号的时间段上累积信号质量信息; 根据所累积的信号质量信息确定每个地面站无线电信号的信号质量参数趋势; 决定将移动无线电和第一地面站之间的当前虚拟连接切换到移动无线电和不同的第二地面站之间的虚拟连接,作为将信号质量参数与预先选择的最小可接受阈值信号质量参数进行比较的函数 ; 以及将移动无线电从第一地面站的虚拟连接切换到第二地面站。