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公开(公告)号：US07479929B2
公开(公告)日：2009-01-20
申请号：US10523182
申请日：2003-07-21
IPC分类号： H01Q13/00
摘要： The present invention relates to a broadband monopole antenna comprising a “cup”-shaped radiating element mounted on an earth plane forming support of annular shape. This antenna can be used in the field of portable television apparatuses.
摘要翻译： 宽带单极天线技术领域本发明涉及一种宽带单极天线，其包括安装在形成环形支撑体的地平面上的“杯形”辐射元件。 该天线可用于便携式电视设备领域。
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公开(公告)号：US07436250B2
公开(公告)日：2008-10-14
申请号：US10540824
申请日：2003-12-17
IPC分类号： H03K5/00
CPC分类号： H03J7/04
摘要： The invention proposes a filtering device having a frequency response which is symmetrical, using asymmetrical filters coupled by transposition means. The advantageous characteristics of the asymmetrical filters are retained and the faults associated with the asymmetry are eliminated. The asymmetrical filters are, for example, quartz filters. The invention also proposes an external transmission and reception unit, using the filtering device with the application of the filtering method.
摘要翻译： 本发明提出一种具有对称频率响应的滤波装置，使用通过转置装置耦合的非对称滤波器。 保留不对称滤波器的有利特性，消除与不对称相关的故障。 不对称滤波器例如是石英滤波器。 本发明还提出了一种使用过滤装置应用过滤方法的外部发送和接收单元。
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公开(公告)号：US07295804B2
公开(公告)日：2007-11-13
申请号：US10540644
申请日：2003-12-18
IPC分类号： H04H1/00
CPC分类号： H04N7/106 , H04H20/06 , H04H20/67 , H04N5/38 , H04N21/43615 , H04N21/43637 , H04N21/6112
摘要： The present invention concerns a system of receiving signals comprising a retransmission base to amplify signals captured at a point in a domestic environment and retransmit them at the same frequency to digital receivers of the said domestic environment. According to the invention, the retransmission base amplifies and retransmits up to N DVB-T channels the positions of which can be anywhere in the receive band and are chosen dynamically by the system users. Means are provided in the system to share the system's amplification resources between the system's various digital receivers.
摘要翻译： 本发明涉及一种接收包括重发基站的信号的系统，以放大在家庭环境中的一点捕获的信号，并将它们以相同的频率重传到所述家庭环境的数字接收机。 根据本发明，重发基站放大并发送多达N个DVB-T信道，它们的位置可以是接收频带中的任何地方，并由系统用户动态选择。 在系统中提供了在系统的各种数字接收机之间共享系统的放大资源的手段。
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公开(公告)号：US20050243902A1
公开(公告)日：2005-11-03
申请号：US10520721
申请日：2003-06-25
CPC分类号： H03D7/163
摘要： The invention relates to VHF adapters for cable networks of the ODU type. It consists in using two conversion chains, up and down, in which a very stable signal reference oscillator drives means of generating the VHF and IF local frequencies common to these two conversion chains. A very selective surface wave filter makes it possible to rject the frequency of the local oscillator at the level of the first intermediate frequency. It makes it possible to obtain a DOCSIS compatible millimeter MWS ODU whose frequency stability and spectral purity satisfy the constraints of the cable standard without undertaking spectral inversion of the signals transmitted and received.
摘要翻译： 本发明涉及用于ODU类型的有线网络的VHF适配器。 它包括使用上下两个转换链，其中非常稳定的信号参考振荡器驱动产生这两个转换链共同的VHF和IF本地频率的手段。 非常选择性的表面波滤波器使得可以在本机振荡器的频率处于第一中频的电平。 它可以获得DOCSIS兼容的毫米波MWS ODU，其频率稳定性和光谱纯度满足电缆标准的约束，而不会对发送和接收的信号进行频谱反演。
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公开(公告)号：US06657505B2
公开(公告)日：2003-12-02
申请号：US10168203
申请日：2002-06-19
IPC分类号： H03B1110
CPC分类号： H03C3/28 , H03B5/1864 , H03C7/02
摘要： The invention relates to a dielectric resonator oscillator, comprising a dielectric resonator contained in a resonant cavity in order to generate a signal oscillating at a predetermined central frequency, the dimensions of the resonator and the limiting conditions in the cavity being capable of determining the resonant frequency of the resonator. It comprises means sensitive to acoustic pressure waves capable of modifying the distribution of the electromagnetic fields in the cavity as a function of said acoustic pressure waves. The invention also relates to a voice control device equipped with an oscillator according to the invention. Particular application to remote voice control devices for controlling domestic equipment.
摘要翻译： 本发明涉及一种介质谐振器振荡器，其包括谐振腔中包含的介质谐振器，以便产生以预定中心频率振荡的信号，谐振器的尺寸和腔中的限制条件能够确定谐振频率 的谐振器。 它包括对声压波敏感的装置，其能够根据所述声压波改变腔中电磁场的分布。 本发明还涉及一种配备有根据本发明的振荡器的语音控制装置。 用于遥控家用设备的远程语音控制设备的特殊应用。
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56.发明申请ULTRASONIC ACOUSTIC RADIATION FORCE EXCITATION FOR ULTRASONIC MATERIAL PROPERTY MEASUREMENT AND IMAGING 审中-公开超声波辐射强度激发超声材料性能测量和成像公开(公告)号：US20140005548A1
公开(公告)日：2014-01-02
申请号：US13992281
申请日：2011-12-02
CPC分类号： A61B8/4483 , A61B8/0825 , A61B8/4488 , A61B8/461 , A61B8/485 , A61B8/5276 , G01S7/5202 , G01S7/52042 , G01S7/52046 , G01S7/52095
摘要： An ultrasonic diagnostic imaging system for shear wave measurement transmits push pulses in the form of a sheet of energy. The sheet of energy produces a shear wavefront which is a plane wave, which does not suffer from the 1/R radial dissipation of push pulse force as does a conventional push pulse generated along a single push pulse vector. The sheet of energy can be planar, curved, or in some other two or three dimensional shape. A curved sheet of energy can produce a shear wave source which focuses into a thin line, which increases the resolution and sensitivity of the measuring techniques used to detect the shear wave effect.
摘要翻译： 用于剪切波测量的超声诊断成像系统以一片能量的形式传送推动脉冲。 能量片产生一个平面波的剪切波前，其不会像沿着单个推动脉冲矢量产生的常规按压脉冲那样遭受推力脉冲的1 / R径向耗散。 能量片可以是平面的，弯曲的，或者是一些其它的二维或三维形状。 弯曲的能量板可以产生聚焦成细线的剪切波源，这增加了用于检测剪切波效应的测量技术的分辨率和灵敏度。
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公开(公告)号：US08390745B2
公开(公告)日：2013-03-05
申请号：US12452311
申请日：2008-06-24
IPC分类号： H04N5/50
CPC分类号： H04L25/03012 , H03H7/01 , H04B1/1027 , H04L25/03133
摘要： The channel filter includes at a least one basic bandpass filter centred on the frequency of the channel, in series with two cascade-connected reflective filters whose bandwidths are located either side of the basic bandpass filter encompassing the channels adjacent to the channel. A reflective filter can include a 90° directional coupler combined with a bandpass filter designed to ensure transfer matched to the load impedance of the coupler with the input of the bandpass filter connected to a directional coupler output port, the input of the directive filter being formed by input port of the coupler and the output of the directive filter being formed by a port recovering the bandpass filter reflection coefficient. The invention applies in particular to the implementation of the DVB-T and DVB-H standards aimed at receiving digital television programs from fixed or mobile multistandard terminals such as mobile telephones, PDAs or other multimedia receivers.
摘要翻译： 信道滤波器包括以通道频率为中心的至少一个基本带通滤波器，与两个级联连接的反射滤波器串联，该滤波器的带宽位于包含与通道相邻的通道的基本带通滤波器的任一侧。 反射滤波器可以包括与带通滤波器组合的90°定向耦合器，其被设计成通过连接到定向耦合器输出端口的带通滤波器的输入来确保与耦合器的负载阻抗匹配的传输，形成指令滤波器的输入 通过耦合器的输入端口和由恢复带通滤波器反射系数的端口形成的指令滤波器的输出。 本发明特别适用于DVB-T和DVB-H标准的实现，该标准旨在从诸如移动电话，PDA或其他多媒体接收机的固定或移动多标准终端接收数字电视节目。
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公开(公告)号：US08294628B2
公开(公告)日：2012-10-23
申请号：US12085711
申请日：2006-11-28
IPC分类号： H01Q13/10
CPC分类号： H01Q13/085 , H01Q21/28
摘要： The present invention relates to a multiple-port dual-band antenna system and the associated interface formed by DPDT or SPDT switches, that can be integrated on one and the same multi-layer structure.
摘要翻译： 本发明涉及多端口双频天线系统和由DPDT或SPDT交换机形成的相关接口，可以集成在同一个多层结构上。
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公开(公告)号：US20120114071A1
公开(公告)日：2012-05-10
申请号：US13381229
申请日：2009-06-30
IPC分类号： H04L27/00
CPC分类号： H04H20/08 , H04B7/15542 , H04H20/63
摘要： The invention relates to a method of resending at least one digital signal, comprising a step of reception by cable of the signal comprising signaling information, a step of resending of this signal at a resend frequency by an antenna, and also comprising a step of selecting the resend frequency as a function of the signaling information; a step of transposing the signal into the selected frequency of the resend signal and a step of monitoring and adjusting the frequency of the resend signal as a function of the selected frequency of the resend signal.
摘要翻译： 本发明涉及一种重新发送至少一个数字信号的方法，包括通过电缆接收包括信令信息的信号的步骤，以天线以再发送频率重新发送该信号的步骤，还包括选择 重发频率作为信令信息的函数; 将信号转置到重发信号的选定频率的步骤，以及根据重发信号的选定频率来监测和调整重发信号的频率的步骤。
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公开(公告)号：US08130163B2
公开(公告)日：2012-03-06
申请号：US11918685
申请日：2006-04-13
IPC分类号： H01Q9/16
摘要： The present invention relates to a compact wideband antenna of the dipole type comprising a first 1 and a second 2 conductive arm supplied differentially, one of the arms called first arm 1 forming at least one cover for an electronic card. Said type of antenna is connected to a portable electronic appliance such as a PC or similar device.
摘要翻译： 本发明涉及一种偶极型的紧凑型宽带天线，包括差分提供的第一和第二导体臂，其中一个称为第一臂1，形成至少一个电子卡盖。 所述类型的天线连接到诸如PC或类似设备的便携式电子设备。
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