Programmable universal locating system
    2.
    发明授权
    Programmable universal locating system 失效
    可编程通用定位系统

    公开(公告)号:US06943679B2

    公开(公告)日:2005-09-13

    申请号:US10255142

    申请日:2002-09-24

    IPC分类号: G08B21/24 G08B26/00

    摘要: A locating system comprising a control unit, a first integrated circuit, a first actuator and a transceiver. The control unit is configured with a program mode and a locate mode. The first actuator and the transceiver are coupled to the first integrated circuit and configured such that when the control unit is in program mode and the first actuator is activated, the control unit transmits a first signal indicating that the control unit is in program mode and identifies the first actuator.

    摘要翻译: 一种定位系统,包括控制单元,第一集成电路,第一致动器和收发器。 控制单元配置有程序模式和定位模式。 第一致动器和收发器耦合到第一集成电路并且被配置为使得当控制单元处于编程模式并且第一致动器被激活时,控制单元发送指示控制单元处于编程模式并识别的第一信号 第一个致动器。

    Expandable cable television subscriber control system
    3.
    发明授权
    Expandable cable television subscriber control system 失效
    可扩展有线电视用户控制系统

    公开(公告)号:US5255318A

    公开(公告)日:1993-10-19

    申请号:US839139

    申请日:1992-02-20

    IPC分类号: H04N7/16 H04N7/167

    摘要: A subscriber control system designed to be placed outside of the subscriber's home, for controlling access to cable television signals provided by a cable television headend. The system is modular in design containing a single control module and a single RF distribution module both shared by a number of jammer modules. The jammer modules contain a plurality of frequency agile oscillators, the frequencies of which can be changed in time-multiplex fashion. The outputs of the jammer modules can be shared amongst a number of subscribers using space division switching. The system features switching utilizing a plurality of series connected diodes to form a transmission line switch and also utilizes filters having inductive elements which are configured by etching processes

    摘要翻译: 用户控制系统被设计为放置在用户家庭之外,用于控制对由有线电视头端提供的有线电视信号的访问。 该系统是模块化设计,包含单个控制模块和单个RF分配模块,由多个干扰模块共享。 干扰模块包含多个频率敏捷振荡器,其频率可以以时间复用的方式改变。 干扰模块的输出可以在使用空分切换的多个用户之间共享。 该系统具有利用多个串联连接的二极管的切换以形成传输线开关,并且还利用具有通过蚀刻工艺配置的电感元件的滤波器