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    • 7. 发明授权
    • Trans-grade communication network
    • 跨级通信网络
    • US08077101B1
    • 2011-12-13
    • US11672282
    • 2007-02-07
    • John F. Mastarone, Jr.William J. Chappell
    • John F. Mastarone, Jr.William J. Chappell
    • H01Q1/04
    • H01Q13/10H01Q1/04H01Q1/44
    • Methods and apparatus that provide grade-level RF transceivers for use in trans-grade wireless communication networks. The methods involve incorporating slot antennas into grade-level opening covers, such as manhole covers, to provide built-in antennas for transceivers that may be connected by transmission lines. The grade-level transceivers use coupling mechanisms to connect transceivers to the slot antennas by way of transmission feed lines. Multi-slot grade-level transceivers use switching mechanisms to switch between multiple slot antennas. Certain embodiments may also include adaptable RF circuitry. Trans-grade wireless communication networks use these grade-level transceivers to communicate between below-ground and above-ground portions of the network, which may be used in underground utility systems such as combined sewer systems.
    • 提供用于跨级无线通信网络的级别级RF收发器的方法和装置。 这些方法包括将缝隙天线结合到等级开放盖(例如人孔盖)中,以为可以通过传输线连接的收发器提供内置天线。 等级收发器使用耦合机制通过传输馈线将收发器连接到时隙天线。 多插槽级别收发器使用切换机制在多个时隙天线之间切换。 某些实施例还可以包括适应性RF电路。 跨级无线通信网络使用这些等级级收发器在网络的地下和地上部分之间进行通信,这可以在地下公用事业系统中使用,例如组合式下水道系统。