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    • 2. 发明授权
    • Multi-standard front end using wideband data converters
    • 多标准前端采用宽带数据转换器
    • US08792521B2
    • 2014-07-29
    • US13243117
    • 2011-09-23
    • Ray (Ramon) GomezLen Dauphinee
    • Ray (Ramon) GomezLen Dauphinee
    • H04B1/38H04L27/06H04W4/00H04J3/04
    • H04L27/0002H04J1/085H04L5/08H04Q11/0428H04Q2213/13034H04Q2213/13039H04Q2213/13098H04Q2213/13196H04Q2213/13333
    • Embodiments provide an area, cost, and power efficient multi-service transceiver architecture. The multi-service transceiver architecture simplifies receiver/transmitter front ends needed for a multi-service architecture, by replacing significant portions of multiple receiver and/or transmitter front ends with a single ADC and/or DAC, respectively. In embodiments, a plurality of received service contents are combined into one composite analog/RF signal and applied to an ADC. The ADC converts the composite signal into a composite multi-service digital signal. Digital techniques are then used to separate the plurality of service contents into a plurality of respective digital streams that each can be independently demodulated. Similarly, in the transmit direction, a plurality of digital streams, including a plurality of service contents, are combined into one composite digital signal. The composite digital signal is applied to a DAC to generate a composite multi-service analog/RF signal for subsequent transmission over a coaxial cable or wirelessly via an antenna.
    • 实施例提供了面积,成本和功率效率的多业务收发器架构。 通过分别用单个ADC和/或DAC替代多个接收器和/或发射器前端的重要部分,多业务收发器架构简化了多业务架构所需的接收机/发射机前端。 在实施例中,将多个接收到的服务内容组合成一个复合模拟/ RF信号并将其应用于ADC。 ADC将复合信号转换为复合多业务数字信号。 然后使用数字技术将多个服务内容分成多个相应的数字流,每个可以独立地解调。 类似地,在发送方向上,包括多个服务内容的多个数字流被组合成一个复合数字信号。 复合数字信号被施加到DAC以产生复合多业务模拟/ RF信号,用于通过同轴电缆进行随后的传输或通过天线无线地进行传输。
    • 3. 发明申请
    • NETWORK OF SWITCHES AND PAYLOAD OF TELECOMMUNICATIONS SATELLITE COMPRISING A NETWORK OF SWITCHES
    • 开关网络和包括开关网络的卫星电信网络
    • US20130301639A1
    • 2013-11-14
    • US13991211
    • 2011-12-01
    • Olivier Nakad
    • Olivier Nakad
    • H04L12/933
    • H04L49/15H04Q3/68H04Q2213/13003H04Q2213/1302H04Q2213/1304H04Q2213/13046H04Q2213/13333H04Q2213/1334H04Q2213/13341
    • A network of switches includes N input accesses and M output accesses, with each of the switches including four ports and with the network input and output accesses being connection switch ports. The network includes at least one stage of switches, with each stage including: a pair of switch lines whose ports are not used as network input or output accesses, referred to as “interconnection switches”, a line being a set of interconnection switches connected to one another; and at least two transverse arms linking interconnection switches of different lines, a transverse arm consisting of elements that are separate from those of the other transverse arms, a transverse arm including at least two links and a switch, referred to as “transverse switch” with the connection switches being transverse switches. At least two transverse switches from different transverse arms of each stage are connection switches of the network.
    • 交换机网络包括N个输入接入和M个输出接入,每个交换机包括四个端口,网络输入和输出接入是连接交换机端口。 该网络包括至少一个开关级,其中每一级包括:一对开关线,其端口不用作网络输入或输出访问,被称为“互连开关”,线路是一组互连开关,连接到 另一个; 以及连接不同线路的互连开关的至少两个横臂,横向臂由与另一横臂相分离的元件组成,包括至少两个连杆的横臂和被称为“横向开关” 连接开关是横向开关。 每个级的不同横臂的至少两个横向开关是网络的连接开关。
    • 4. 发明授权
    • Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex and/or frequency-division duplex mode
    • 用于在时分双工和/或频分双工模式下蜂窝卫星频谱的地面重用的系统和方法
    • US08078101B2
    • 2011-12-13
    • US12604994
    • 2009-10-23
    • Peter D. KarabinisGary G. Churan
    • Peter D. KarabinisGary G. Churan
    • H04B7/185H04W4/00
    • H04B7/1853H04B7/18513H04B7/18563H04B7/216H04Q2213/13098H04Q2213/13196H04Q2213/13292H04Q2213/13333H04W16/14H04W52/367
    • A space-based component, such as a satellite, is configured to receive wireless communications from radiotelephones in a satellite footprint over an uplink satellite radiotelephone frequency, and to transmit wireless communications to the radiotelephones over a downlink radiotelephone frequency. An ancillary terrestrial network, that may include one or more ancillary terrestrial components, is configured to transmit wireless communications to, and receive wireless communications from, the radiotelephones over the uplink satellite radiotelephone frequency in a time-division duplex mode. An interference reducer is configured to reduce interference from the wireless communications that are received by the space-based component from the second radiotelephone and/or from the ancillary terrestrial network over the uplink satellite radiotelephone frequency, using the wireless communications that are transmitted by the ancillary terrestrial to, and/or received by the ancillary terrestrial network from, the second radiotelephone over the uplink satellite radiotelephone frequency.
    • 诸如卫星的基于空间的组件被配置为通过上行链路卫星无线电话频率从卫星覆盖区中的无线电话机接收无线通信,并且通过下行链路无线电话频率向无线电话机发送无线通信。 可以包括一个或多个辅助地面组件的辅助地面网络被配置为以时分双工模式通过上行链路卫星无线电话频率向无线电话机发送无线通信和从无线电话机接收无线通信。 干扰减少器被配置为使用由辅助传输的无线通信来减少由基于空间的组件从第二无线电话和/或从辅助地面网络通过上行链路卫星无线电话频率接收的干扰 通过上行链路卫星无线电话频率从第二无线电话机地面到地面和/或由辅助地面网络接收。