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公开(公告)号：US5345244A
公开(公告)日：1994-09-06
申请号：US3135
申请日：1993-01-12
申请人： David R. Gildea , Charles Trimble
发明人： David R. Gildea , Charles Trimble
CPC分类号： H01Q1/3275 , G01S19/36
摘要： Cordless antenna apparatus for determination of the location of an observer and/or of the time of observation by use of a Satellite Positioning System (SPS), such as the Global Positioning System or the Global Orbiting Navigational Satellite System. In each embodiment, the apparatus includes a Smart Antenna device and a display unit, connected by a wireless link. In a first embodiment, the Smart Antenna device includes: an SPS antenna to receive the SPS signals; an SPS signal frequency downconverter; an SPS signal processor to receive antenna output signals and to determine at least one of the present location of the SPS antenna or the time of observation; a transmitter to receive processor output signals and transmit these signals to the display unit; and a power supply. The display unit in the first embodiment includes: a receiver to receive the signals transmitted by the SPS Smart Antenna device transmitter; a display processor to receive output signals from the receiver and to process these signals for display of location or time information; display means to visibly or audibly display the location or time information; and a second power supply. In a second embodiment, the SPS signal processor is moved to the display unit. The transmitter and receiver may be replaced by two transceivers to allow the display unit to transmit messages, such as requests for information, to the SPS Smart Antenna device.
摘要翻译： 用于通过使用诸如全球定位系统或全球轨道导航卫星系统的卫星定位系统（SPS）来确定观察者的位置和/或观察时间的无线天线装置。 在每个实施例中，该装置包括通过无线链路连接的智能天线装置和显示单元。 在第一实施例中，智能天线装置包括：SPS天线，用于接收SPS信号; SPS信号下变频器; SPS信号处理器，用于接收天线输出信号并确定SPS天线的当前位置或观测时间中的至少一个; 接收处理器输出信号并将这些信号传送到显示单元的发射机; 和电源。 第一实施例中的显示单元包括：接收由SPS智能天线设备发射机发送的信号的接收机; 显示处理器，用于接收来自接收器的输出信号并处理这些信号以显示位置或时间信息; 显示装置可视或可听地显示位置或时间信息; 和第二电源。 在第二实施例中，SPS信号处理器被移动到显示单元。 发射机和接收机可以由两个收发器替代，以允许显示单元向SPS智能天线设备发送诸如信息请求的消息。
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