Satellite communication antenna pointing system
    21.
    发明授权
    Satellite communication antenna pointing system 失效
    卫星通信天线指向系统

    公开(公告)号:US06317093B1

    公开(公告)日:2001-11-13

    申请号:US09635937

    申请日:2000-08-10

    申请人: Joel Harris

    发明人: Joel Harris

    IPC分类号: H01Q300

    摘要: An antenna pointing system automatically aligns an antenna with a geo-synchronous satellite using a Ku band signal, which has a relatively broad bandwidth, with sufficient accuracy for Ka band signal transmission, which has a relatively narrow bandwidth. Initially, the antenna is pointed at the selected satellite so as to receive the Ku band signal. The system obtains a series of signal strength readings over a predetermined azimuth (or elevation) region, such as plus/minus two degrees, from which a new peak location is selected. Signal strength data is then obtained over a predetermined elevation (or azimuth) region. Another signal peak location is selected based on the elevation data. Azimuth and elevation data are alternately collected for refining the peak of the Ku signal so as to optimize Ka signal transmission capability.

    摘要翻译: 天线指向系统使用具有相对宽的带宽的Ku波段信号自动对准天线与地球同步卫星,对于具有相对较窄带宽的Ka波段信号传输具有足够的精度。 最初,天线指向所选择的卫星,以便接收Ku波段信号。 该系统在预定的方位角(或高度)区域上获得一系列信号强度读数,例如正/负两度,从中选择新的峰值位置。 然后在预定的高度(或方位))区域获得信号强度数据。 基于高程数据选择另一个信号峰值位置。 交替收集方位角和高程数据,以便优化Ku信号的峰值,从而优化Ka信号传输能力。

    Pyrazolo-[4,3-e]-1,2,4-triazolo-[1,5-c]-pyrimidine adenosine A2a receptor antagonists
    24.
    发明申请
    Pyrazolo-[4,3-e]-1,2,4-triazolo-[1,5-c]-pyrimidine adenosine A2a receptor antagonists 有权
    吡唑并[4,3-e] -1,2,4-三唑并 - [1,5-c] - 嘧啶腺苷A2a受体拮抗剂

    公开(公告)号:US20050239795A1

    公开(公告)日:2005-10-27

    申请号:US11108916

    申请日:2005-04-19

    IPC分类号: A61K31/519 C07D487/14

    CPC分类号: C07D487/14

    摘要: Compounds having the structural formula I or a pharmaceutically acceptable salt thereof, wherein R is optionally substituted phenyl, furanyl, thienyl, pyridyl, pyridyl N-oxide, oxazolyl or pyrrolyl, or cycloalkenyl R1, R2, R3, R4 and R5 are H, alkyl or alkoxyalkyl; and Z is optionally substituted aryl or heteroaryl are disclosed. Also disclosed is the use of compounds of formula I in the treatment of central nervous system diseases, in particular Parkinson's disease, alone or in combination with other agents for treating Parkinson's disease, and pharmaceutical compositions comprising them.

    摘要翻译: 具有结构式I的化合物或其药学上可接受的盐,其中R是任选取代的苯基,呋喃基,噻吩基,吡啶基,吡啶基N-氧化物,恶唑基或吡咯基,或环烯基R 1, R 3,R 3,R 4和R 5是H,烷基或烷氧基烷基; 和Z是任选取代的芳基或杂芳基。 还公开了式I化合物在治疗中枢神经系统疾病,特别是帕金森病中单独使用或与用于治疗帕金森病的其它药物组合的用途,以及包含它们的药物组合物的用途。