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公开(公告)号：US5068918A
公开(公告)日：1991-11-26
申请号：US530687
申请日：1990-05-30
摘要： A receiver for terrestrial AM-HF-TV signals and satellite FM-HF-TV signals in first and second frequency ranges, respectively, of mutually predominantly equal widths, which succeed each other in frequency, includes, arranged one after the other, a HF-AM-FM section, a mixing circuit common for the AM and FM-TV signals and an IF device, oscillator mixing signals being applied from a tuning oscillator to that mixing circuit for a frequency conversion of the AM and FM-HF-TV signals into a first AM and an FM intermediate frequency signal, respectively, having a first AM and an FM intermediate frequency, of which at least the first AM intermediate frequency is located above the first frequency region. In order to enable a simple and cheap realization, in which a tuning oscillator having a comparatively narrow-band tuning range can be used, the first AM intermediate frequency is of the order of magnitude of twice the highest frequency of the first frequency range and the FM intermediate frequency is of the order of magnitude of one-half the lowest frequency of the second frequency range, the IF-device including an AM and a FM-IF section whose inputs are coupled to an output of the mixing circuit for a separate selection and processing of the first AM and the FM-intermediate frequency signals, respectively.
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公开(公告)号：US07474173B2
公开(公告)日：2009-01-06
申请号：US11426673
申请日：2006-06-27
CPC分类号： H01P1/161 , H01P1/2131
摘要： A transceiver allowing transmission of a co-polar transmit signal and simultaneous reception of co-polar receive and cross-polar receive signals. An integrated orthogonal mode transducer and diplexer module containing a plurality of filters between a feed port, co-polar transmission port, co-polar reception port and cross-polar reception port is mounted within the transceiver housing with the feed port aligned with or forming the feed flange of the transceiver. A transmitter printed circuit board is aligned with the transmission waveguide port and a receiver printed circuit board is aligned with the co-polar reception and cross-polar reception ports of the integrated orthomode transducer and diplexer module.
摘要翻译： 允许发送同极发射信号并且同时接收同极接收和交叉极性接收信号的收发器。 在馈送端口，共极性传输端口，同极接收端口和交叉极接收端口之间包含多个滤波器的集成正交模式传感器和双工器模块安装在收发机壳体内，馈送端口对准或形成 馈线法兰的收发器。 发射机印刷电路板与传输波导端口对准，并且接收机印刷电路板与集成正射模换能器和双工器模块的同极接收和交叉极接收端口对准。
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公开(公告)号：US08155050B2
公开(公告)日：2012-04-10
申请号：US12527804
申请日：2008-02-19
IPC分类号： H04B7/185
CPC分类号： H04B7/18517
摘要： A satellite communications interoperability module and method for frequency down-conversion. The module insertable in-line with an intra-facility link communicating a multiplexed signal between the outdoor unit (ODU) and the indoor unit (IDU). Electrical circuitry of the module transforming and forwarding the multiplexed signal over the intra-facility link, the multiplexed signal including at least direct current, a standard tone, and L-band data signals. Switching means of the module specifies operations performed by the electrical circuitry to transform the multiplexed signal frequencies, waveforms and voltages according to predetermined parameters compatible between the ODU and the IDU. An interoperability method for compatibility with a range of different indoor units applied by the interoperability module and or incorporated into an integral ODU is application of a second frequency shift upon the L-band signal output from the ODU primary down-conversion circuit.
摘要翻译： 一种用于降频转换的卫星通信互操作模块和方法。 该模块与室外单元（ODU）和室内单元（IDU）之间传送多路复用信号的工厂内链路成对插入。 模块的电路通过工厂内链路转换和转发多路复用信号，多路复用信号至少包括直流电，标准音调和L波段数据信号。 模块的切换装置指定由电路执行的操作，以根据与ODU和IDU之间兼容的预定参数来变换复用的信号频率，波形和电压。 与由互操作性模块应用或并入整体ODU的不同室内单元的一系列兼容性的互操作性方法是在从ODU主下变频电路输出的L波段信号上施加第二频移。
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4.发明授权公开(公告)号：US07774016B2
公开(公告)日：2010-08-10
申请号：US11779402
申请日：2007-07-18
CPC分类号： H04B7/18517
摘要： A satellite communications interoperability module and method for frequency down-conversion. The module insertable in-line with an intra-facility link communicating a multiplexed signal between the outdoor unit (ODU) and the indoor unit (IDU). Electrical circuitry of the module transforming and forwarding the multiplexed signal over the intra-facility link, the multiplexed signal including at least direct current, a standard tone, and L-band data signals. Switching means of the module specifies operations performed by the electrical circuitry to transform the multiplexed signal frequencies, waveforms and voltages according to predetermined parameters compatible between the ODU and the IDU. An interoperability method for compatibility with a range of different indoor units applied by the interoperability module and or incorporated into an integral ODU is application of a second frequency shift upon the L-band signal output from the ODU primary down-conversion circuit.
摘要翻译： 一种用于降频转换的卫星通信互操作模块和方法。 该模块与室外单元（ODU）和室内单元（IDU）之间传送多路复用信号的工厂内链路成对插入。 模块的电路通过工厂内链路转换和转发多路复用信号，多路复用信号至少包括直流电，标准音调和L波段数据信号。 模块的切换装置指定由电路执行的操作，以根据与ODU和IDU之间兼容的预定参数来变换复用的信号频率，波形和电压。 与由互操作性模块应用或并入整体ODU的不同室内单元的一系列兼容性的互操作性方法是在从ODU主下变频电路输出的L波段信号上施加第二频移。
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