Quinazoline derivatives and their preparation
    1.
    发明授权
    Quinazoline derivatives and their preparation 失效
    喹唑啉衍生物及其制备方法

    公开(公告)号:US5296487A

    公开(公告)日:1994-03-22

    申请号:US755747

    申请日:1991-09-06

    CPC分类号: C07D401/06

    摘要: A compound of the formula: ##STR1## in which R.sup.1 and R.sup.2 are each hydrogen, halogen, nitro, amino, protected amino, hydroxyamino, lower alkyl, hydroxy, protected hydroxy, sulfamoyl, carboxy, protected carboxy, mercapto, optionally substituted heterocyclic-carbonyl, optionally substituted heterocyclic-(lower)alkyl, lower alkylthio, hydroxy(lower)alkyl or protected hydroxy(lower)alkyl,R.sup.3 is aryl which may have suitable substituent(s), andA is lower alkylene,or pharmaceutically acceptable salts thereof.

    摘要翻译: 下式的化合物,其中R 1和R 2各自为氢,卤素,硝基,氨基,保护的氨基,羟基氨基,低级烷基,羟基,保护的羟基,氨磺酰基,羧基,被保护的羧基,巯基,任选取代的杂环 - 羰基,任选取代的杂环 - (低级)烷基,低级烷硫基,羟基(低级)烷基或被保护的羟基(低级)烷基,R 3为可具有合适取代基的芳基,A为低级亚烷基或其药学上可接受的盐 。

    Mobile communication unit and mobile communication system
    7.
    发明授权
    Mobile communication unit and mobile communication system 有权
    移动通信单元和移动通信系统

    公开(公告)号:US06671509B1

    公开(公告)日:2003-12-30

    申请号:US09339835

    申请日:1999-06-25

    IPC分类号: H04Q732

    CPC分类号: H04W8/245 H04W8/183

    摘要: A mobile station (mobile communication unit) receives system software from a base station via an antenna and a transmitter/receiver, and stores the received system software in a memory. A digital signal processor in the mobile station then performs communication processing according to the system software stored in the memory. By transmitting various system software from the base station, the single mobile station can easily be adapted to different communication principles. The base station also receives system software from a center via a public exchange network, and stores the received system software in a memory. A digital signal processor in the base station then performs communication processing according to the system software stored in the memory.

    摘要翻译: 移动站(移动通信单元)经由天线和发射机/接收机从基站接收系统软件,并将接收到的系统软件存储在存储器中。 然后,移动站中的数字信号处理器根据存储在存储器中的系统软件执行通信处理。 通过从基站发送各种系统软件,单个移动台可以容易地适应不同的通信原理。 基站还通过公共交换网从中心接收系统软件,并将接收到的系统软件存储在存储器中。 然后,基站中的数字信号处理器根据存储在存储器中的系统软件执行通信处理。