会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明公开
    • DEMULTIPLEXING DEVICE, MULTIPLEXING DEVICE AND RELAY DEVICE
    • 多功能一体机,多功能一体机
    • EP2509223A4
    • 2017-05-03
    • EP10833133
    • 2010-11-18
    • MITSUBISHI ELECTRIC CORP
    • FUJIMURA AKINORI
    • H03H17/00H03H17/02H04J1/04
    • H03H17/0266H03H17/06H04J1/05H04J1/08H04J1/085
    • To obtain a demultiplexing device that can reduce power consumption. The demultiplexing device includes frequency-conversion and reception low-pass-filter units 101 to 114 that perform a frequency converting process and a low-pass filtering process for causing a signal to pass through a desired band, perform downsampling to reduce a sampling rate to half of a data rate of an input signal, and output the signal, reception channel-filter units 121 to 128 that waveform-shape a signal with a desired frequency characteristic and output the waveform-shaped signal, a filter-bank control unit 13 that generates a clock control signal for supplying a clock to frequency-conversion and reception low-pass-filter units and reception channel-filter units corresponding to signal passage bands, based on channel information, and a reception-clock supply unit 14 that supplies a clock to frequency-conversion and reception low-pass-filter units and reception channel-filter units corresponding to signal passage bands, based on the clock control signal.
    • 以获得可以降低功耗的解复用器件。 解复用装置包括频率转换和接收低通滤波器单元101至114,其执行频率转换处理和低通滤波处理,用于使信号通过期望频带,执行下采样以将采样率降低到 输出信号的数据速率的一半,并且输出信号,使具有期望的频率特性的波形形成信号的接收信道滤波器单元121至128,并输出波形状信号;滤波器组控制单元13, 产生时钟控制信号,用于根据信道信息向频率转换和接收低通滤波器单元和对应于信号通过频带的接收信道滤波器单元提供时钟;以及接收时钟提供单元14,其提供时钟 基于时钟控制信号,对应于信号通过频带的频率转换和接收低通滤波器单元和接收信道滤波器单元。
    • 4. 发明公开
    • CONTROL UNIT, SYSTEM AND METHOD FOR SENDING AND RECEIVING RADIO SIGNALS IN SEVERAL FREQUENCY RANGES
    • 主控单元,和方法,几个频段发送和接收无线电信号
    • EP3057379A1
    • 2016-08-17
    • EP16153997.8
    • 2016-02-03
    • KATHREIN-Werke KG
    • Wagner, Christian
    • H04W88/08
    • H04J1/085H04B1/40H04B7/15528H04J1/16
    • A DAS system (10) for sending and receiving radio signals in several frequency ranges is described. The system comprises a control unit (30) with at least one first port (30-1) for forwarding first radio signals (20-1) in a first frequency range and one second port (30-2) for forwarding second radio signals (20-2) in a second frequency range. A plurality of remote units (50) are connected to the control unit (30) via a distributor network (40). The remote units (50) have first antenna elements (50-1) for sending and receiving the radio signals (20-1) in the first frequency range and second antenna elements (50-2) for sending and receiving the radio signals (20-2) in the second frequency range. The control unit (30) comprises a modulator (34) for converting the second radio signals (20-2) to a further frequency range and the remote units (50) have a demodulator (54) for converting the second radio signals (20-2) from the further frequency range to a different frequency range.
    • DAS系统(10),用于在几个频率范围发送和接收无线电信号进行说明。 该系统包括一个控制单元(30)具有至少一个第一端口(30-1),用于转发在第一频率范围内的第一无线电信号(20-1)和一个第二端口(30-2),用于转发第二无线电信号( 20-2)在第二频率范围。 远程单元(50)的多个经由分配器网络(40)连接到所述控制单元(30)。 远程单元(50),具有用于发送和接收无线电信号的发送和接收在第一频率范围内的无线电信号(20-1)和第二天线元件(50-2)第一天线元件(50-1)(20 -2)在所述第二频率范围。 所述控制单元(30)包括一个调制器(34),用于所述第二无线电信号(20-2)转化成甲另外的频率范围和远程单元(50)具有用于第二无线电信号转换的解调器(54)(20- 2)从所述另外的频率范围不同的频率范围。
    • 5. 发明公开
    • Multi-standard front end using wideband data converters
    • Mehrfachstandard-Vorderende mit Verwendung von Breitband-Datenwandlern
    • EP2574077A1
    • 2013-03-27
    • EP12005501.7
    • 2012-07-27
    • Broadcom Corporation
    • Gomez, RamonDauphinee, Len
    • H04Q11/04H04L27/06
    • 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代替多个接收器和/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,用于随后通过同轴电缆传输或通过天线无线地传输。
    • 7. 发明公开
    • DEMULTIPLEXING DEVICE, MULTIPLEXING DEVICE AND RELAY DEVICE
    • 解复用设备,复用设备和中继设备
    • EP2509223A1
    • 2012-10-10
    • EP10833133.1
    • 2010-11-18
    • Mitsubishi Electric Corporation
    • FUJIMURA, Akinori
    • H03H17/00H03H17/02H04J1/04
    • H03H17/0266H03H17/06H04J1/05H04J1/08H04J1/085
    • To obtain a demultiplexing device that can reduce power consumption. The demultiplexing device includes frequency-conversion and reception low-pass-filter units 101 to 114 that perform a frequency converting process and a low-pass filtering process for causing a signal to pass through a desired band, perform downsampling to reduce a sampling rate to half of a data rate of an input signal, and output the signal, reception channel-filter units 121 to 128 that waveform-shape a signal with a desired frequency characteristic and output the waveform-shaped signal, a filter-bank control unit 13 that generates a clock control signal for supplying a clock to frequency-conversion and reception low-pass-filter units and reception channel-filter units corresponding to signal passage bands, based on channel information, and a reception-clock supply unit 14 that supplies a clock to frequency-conversion and reception low-pass-filter units and reception channel-filter units corresponding to signal passage bands, based on the clock control signal.
    • 获得可降低功耗的多路分解器件。 解复用装置包括执行频率转换处理和用于使信号通过期望频带的低通滤波处理的频率转换和接收低通滤波器单元101至114,执行下采样以将采样率降低至 输出信号的一半数据速率并输出该信号;接收信道滤波器单元121至128,其对期望的频率特性的信号进行波形整形并输出该波形整形后的信号;滤波器组控制单元13, 接收时钟提供单元14基于信道信息产生用于将时钟提供给与信号通过频带对应的频率转换和接收低通滤波器单元和接收信道滤波器单元的时钟控制信号, 基于时钟控制信号,将信号传送到与信号通过频带相对应的频率转换和接收低通滤波器单元和接收信道滤波器单元。
    • 8. 发明公开
    • FREQUENCY CONVERTER FOR MULTI-CHANNEL SYSTEMS
    • 变频器控制多通道系统
    • EP1303907A2
    • 2003-04-23
    • EP01935655.9
    • 2001-05-17
    • Broadband Innovations, Inc.
    • PETROVIC, Branislav, A.
    • H03D1/00
    • H04J1/085H03D7/161H04L5/06
    • An agile frequency converter and method employs an IF/RF exchange process to reduce the system noise generated by the frequency conversion process in generating a broadband composite signal. The converter employs a well-known two-stage frequency conversion process, but amplifies the intermediate output signal generated by the first conversion stage to boost the input to the second conversion stage, achieving a commensurate increase in the level of the output signal from the second conversion stage. This increased output level results in an increased signal-to-noise ratio between the RF channel carrier component and the system noise floor. The converted output signal is then attenuated by an amount substantially equal to the amount of amplification of the intermediate signal prior to the second stage of conversion. The result of this attenuation is an RF signal having frequency components with amplitudes approximately equal to that which they would have had had the intermediate signal not been amplified, and results in a noise floor which is reduced by that same amount. Thus, the increased signal-to-noise ratio is maintained. The converter also employs two tunable notch filters in series for purposes of filtering two second-order distortion components that find their way back into the range of channel frequencies of the broadband signal. These tunable notch filters are employed because the IF/RF exchange process actually decreases the signal-to-distortion ratio for one of these components. For those RF channel frequencies that fall in the middle of the channel frequency range of the broadband signal, no IF/RF exchange is employed because one of the distortion components cannot be filtered because it is too close in proximity to the RF signal components. In this case, the second stage of the frequency conversion process is operated to produce an optimal signal-to-distortion ratio in the output of the converted signal, including no amplification of the intermediate signal. The tunable notch filters employ two varactors in a back to back push-pull configuration to eliminate first order distortion in the transfer function of the filters.