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公开(公告)号：US5020902A
公开(公告)日：1991-06-04
申请号：US370342
申请日：1989-06-22
CPC分类号： G01C3/32
摘要： A method and apparatus for performing range finding and a unique heads-up display for use in such apparatus are provided. Range finding is performed by viewing an object of known height at the location to which a range determination is being made through a transparent digital display on which a reticle is provided. The reticle is preferably in segments with the user adding or substracting segments from the reticle until its height matches that of the sighted image. A processor is provided to which the known height of the object is inputted, either by the user or from storage, with the processor determining range from this known height and the number of segments in the reticle. The range is displayed on the transparent display, permitting a user to simultaneously view both the object and the range indication.
摘要翻译： 提供了一种用于执行测距的方法和装置以及用于这种装置中的独特的平视显示器。 通过在其上设置有掩模版的透明数字显示器上观察在正在进行范围确定的位置处的已知高度的对象来执行测距。 掩模版优选地在用户从掩模版中添加或减少段到其高度与目视图像的高度相同的段中。 提供了一种处理器，其中用户或从存储器输入对象的已知高度，处理器确定范围从该已知高度和标线片中的段数。 范围显示在透明显示屏上，允许用户同时查看对象和范围指示。
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公开(公告)号：US20080271092A1
公开(公告)日：2008-10-30
申请号：US11789659
申请日：2007-04-25
IPC分类号： H04N7/20
摘要： Methods and apparatus are provided for issuing instructions to a satellite antenna configured to receive a transmission from any of a group of satellites and to provide a signal to a receiver. In accordance with one embodiment, the receiver is queried (e.g., by a control module, which in one embodiment is a device equipped with a microprocessor and memory storing instructions defining the query) to determine information relating to a channel selected by a user. Based on the information, a determination is made whether the antenna should receive a transmission from a satellite other than a currently selected satellite. If so, the antenna is instructed (e.g., by the control module) to locate the other satellite. In another embodiment, methods and apparatus are provided for use in systems having multiple receivers, including one master receiver coupled to the antenna and one or more other slave receivers which do not issue instructions to the antenna. In accordance with this embodiment, a determination is made whether a user of a slave receiver has selected a channel provided by a transmission from a satellite other than a currently selected satellite, and if so, the antenna is caused (e.g., by a control module coupled to the slave receiver) to locate the other satellite.
摘要翻译： 提供了方法和装置，用于向配置成从一组卫星中的任何一个接收传输的卫星天线发出指令，并向接收机提供信号。 根据一个实施例，查询接收机（例如，通过控制模块，其在一个实施例中是装备有微处理器的设备和存储定义查询的指令的存储器），以确定与由用户选择的频道有关的信息。 基于该信息，确定天线是否应当从除当前选择的卫星以外的卫星接收传输。 如果是这样，则指示天线（例如，由控制模块）定位另一颗卫星。 在另一个实施例中，方法和装置被提供用于具有多个接收机的系统中，包括耦合到天线的一个主接收机和不向天线发出指令的一个或多个其他从接收机。 根据本实施例，确定从接收机的用户是否从由当前选择的卫星以外的卫星发送的信道中选择了一个信道，如果是，则引起天线（例如，由控制模块 耦合到从接收机）以定位另一卫星。
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公开(公告)号：US20110006965A1
公开(公告)日：2011-01-13
申请号：US12832351
申请日：2010-07-08
CPC分类号： H01Q1/42
摘要： The present invention provides an improved single, light weight, compact integrated multi-antenna system for simultaneous reception and transmission of energy at multiple different frequencies without interfering with each other. The system includes an enclosure having a shield positioned at about its midpoint for secure placement of a first antenna on the top of the shield and second antenna on the bottom of the shield. The shield is fabricated and positioned to provide both a secure placement of the antennas and to block or attenuate the frequency signals of the first antenna to reach the second antenna and vice versa. The system further includes an interface coupled between the first and the second antenna to share data signals among each other.
摘要翻译： 本发明提供了一种改进的单个，轻量级的小型集成多天线系统，用于在多个不同频率下同时接收和传输能量而不彼此干扰。 该系统包括具有围绕其中点定位的屏蔽的外壳，用于将第一天线安全地放置在屏蔽的顶部上，并且在屏蔽的底部上安放第二天线。 屏蔽被制造和定位以提供天线的安全放置，并且阻挡或衰减第一天线的频率信号以到达第二天线，反之亦然。 该系统还包括耦合在第一和第二天线之间以在彼此之间共享数据信号的接口。
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