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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：US20110187619A1
公开(公告)日：2011-08-04
申请号：US12734535
申请日：2008-11-07
CPC分类号： H01Q1/521
摘要： The invention concerns a system of antennas on the same support. Each antenna is connected to a first port for the emission/reception in a first frequency band, and to a second port for the emission/reception in a second frequency band. The invention consists in a specific dimensioning of the support, such that the difference of the perimetric lengths separating the median points is a function of the half wavelength λ/2 modulo k λ, k positive integer, where λ is the wavelength corresponding to a working frequency fr.
摘要翻译： 本发明涉及在相同支撑上的天线系统。 每个天线连接到用于在第一频带中的发射/接收的第一端口以及用于第二频带中的发射/接收的第二端口。 本发明包括支撑体的特定尺寸，使得分离中心点的周边长度的差异是半波长λ/ 2模k k，k正整数的函数，其中λ是对应于工作的波长 频率fr
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53.发明申请REPEATER FOR RADIO FREQUENCY SIGNALS, AND FOR DIGITAL TELEVISION SIGNALS IN PARTICULAR 失效无线电频率信号的转发和数字电视信号特别公开(公告)号：US20100240301A1
公开(公告)日：2010-09-23
申请号：US12452339
申请日：2008-06-19
IPC分类号： H04B7/14
CPC分类号： H04B7/15578
摘要： This invention concerns a repeater for radio frequency signals.The repeater at least includes: a channel filter; an active filter connected to the channel filter output, covering the channels adjacent to the channel filter comprising: an amplifier the output of which forms the output of the said filter; two bandpass filters in parallel connected as a negative feedback loop around the amplifier, with a first bandpass filter covering the lower adjacent channels and a second bandpass filter covering the higher adjacent channels. The repeater can also include: a circuit converting the radio frequency signal into an intermediate frequency, with the channel filter filtering the signal converted into an intermediate frequency; a circuit converting the signal into an intermediate frequency at its original frequency. The invention notably applies to the development of domestic repeaters for mobile terminals meeting the DVB-H digital television standard.
摘要翻译： 本发明涉及用于射频信号的中继器。 中继器至少包括：信道滤波器; 连接到信道滤波器输出的有源滤波器，覆盖与信道滤波器相邻的信道，包括：放大器，其输出形成所述滤波器的输出; 两个带通滤波器并联连接在放大器周围的负反馈回路，第一带通滤波器覆盖下相邻通道，第二带通滤波器覆盖较高的相邻通道。 中继器还可以包括：将射频信号转换成中频的电路，其中信道滤波器对被转换成中频的信号进行滤波; 将信号转换成其原始频率的中频的电路。 本发明特别适用于满足DVB-H数字电视标准的移动终端的国内中继器的开发。
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54.发明授权Device for converting frequencies, method of calibrating said device and system for transmitting/receiving electromagnetic signals comprising such a device 有权用于转换频率的装置，校准所述装置的方法和用于发送/接收包括这种装置的电磁信号的系统公开(公告)号：US07343139B2
公开(公告)日：2008-03-11
申请号：US11147839
申请日：2005-06-08
IPC分类号： H04B1/04
CPC分类号： H03D7/02
摘要： The invention relates to a device for converting frequencies comprising a local oscillator of fixed frequency and a first mixer with two inputs and an output, a first input receiving the signal to be converted and a second input receiving the signal arising from the local oscillator. It further comprises a second mixer with two inputs and an output, a first input receiving the signal arising from the phase-shifted local oscillator and the second input receiving a dc signal whose value is dependent on the power of the residual spectral component at the output of an adder receiving as input the signals arising from the first and from the second mixer(s) and giving as output a transposed signal. The invention applies in particular in terminals operating in the Ka band.
摘要翻译： 本发明涉及一种用于转换频率的装置，包括固定频率的本地振荡器和具有两个输入的第一混频器和一个输出端，接收待转换信号的第一输入端和接收本地振荡器产生的信号的第二输入。 它还包括具有两个输入和一个输出的第二混频器，第一输入接收由相移本地振荡器产生的信号，第二输入端接收直流信号，该直流信号的值取决于输出端的剩余频谱分量的功率 一个加法器接收从第一和第二混频器输出的信号作为输入，并输出转置的信号。 本发明尤其适用于在Ka频段工作的终端。
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55.发明申请Switch and switching device with selective isolation for multimedia terminals 有权用于多媒体终端的选择性隔离开关和开关装置公开(公告)号：US20080012783A1
公开(公告)日：2008-01-17
申请号：US11810056
申请日：2007-06-04
IPC分类号： H01Q3/24
CPC分类号： H04B1/48
摘要： The invention relates to a switch with selective isolation and also to a switching device with selective isolation for multimedia terminals. The switch formed by 2 transistors (T1, T2) is feedback controlled by a feedback control signal V tune at a pre-defined frequency thus guaranteeing the selective isolation at this frequency. The switching device for switching the transmission/receiver channels of a multimedia terminal is formed by selective isolation switches that can be integrated using MMIC technology.
摘要翻译： 本发明涉及具有选择性隔离的开关，并且涉及具有用于多媒体终端的选择性隔离的开关装置。 由2个晶体管（T 1，T 2）形成的开关由预定频率的反馈控制信号V调制反馈控制，从而保证在该频率下的选择性隔离。 用于切换多媒体终端的发送/接收信道的交换设备由可以使用MMIC技术集成的选择性隔离开关形成。
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56.发明授权Process and device for modulating a carrier with amplitude and phase error compensation 有权用于调制具有幅度和相位误差补偿的载波的过程和装置公开(公告)号：US07286613B2
公开(公告)日：2007-10-23
申请号：US10655442
申请日：2003-09-04
IPC分类号： H04K1/02
CPC分类号： H04L27/364 , H04L2027/0016 , H04L2027/0018
摘要： The invention relates to processes and devices which make it possible to directly modulate an RF carrier with a quadrature signal. It consists in filtering (504) this quadrature signal around zero so as to introduce alternately (507, 508) on each of the channels a low-frequency subcarrier that will serve as reference. Each of these channels is alternately demodulated in a synchronous manner (519) cosine-wise and sine-wise. The demodulation signal is filtered (523) so as to recover the subcarrier marred by modulation errors. The measurement of these errors (524) allows feedback correction (503) of the quadrature signal. It makes it possible to perform the major part of the operations in the digital processor (501) and enables direct vector modulation to be made possible at millimeter frequencies.
摘要翻译： 本发明涉及使得可以用正交信号直接调制RF载波的方法和装置。 它包括在零周围过滤（504）该正交信号，以在每个信道上交替地引入（507,508）作为参考的低频子载波。 这些通道中的每一个以同步方式（519）以余弦和正弦方式交替地解调。 对解调信号进行滤波（523），以恢复由调制误差损害的副载波。 这些误差的测量（524）允许正交信号的反馈校正（503）。 它使得可以在数字处理器（501）中执行大部分操作，并且使得能够以毫米频率进行直接矢量调制。
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57.发明申请Device for converting frequencies, method of calibrating said device and system for transmitting/receiving electromagnetic signals comprising such a device 有权用于转换频率的装置，校准所述装置的方法和用于发送/接收包括这种装置的电磁信号的系统公开(公告)号：US20050277395A1
公开(公告)日：2005-12-15
申请号：US11147839
申请日：2005-06-08
CPC分类号： H03D7/02
摘要： The invention relates to a device for converting frequencies comprising a local oscillator of fixed frequency and a first mixer with two inputs and an output, a first input receiving the signal to be converted and a second input receiving the signal arising from the local oscillator. It further comprises a second mixer with two inputs and an output, a first input receiving the signal arising from the phase-shifted local oscillator and the second input receiving a dc signal whose value is dependent on the power of the residual spectral component at the output of an adder receiving as input the signals arising from the first and from the second mixer(s) and giving as output a transposed signal. The invention applies in particular in terminals operating in the Ka band.
摘要翻译： 本发明涉及一种用于转换频率的装置，包括固定频率的本地振荡器和具有两个输入的第一混频器和一个输出端，接收待转换信号的第一输入端和接收本地振荡器产生的信号的第二输入。 它还包括具有两个输入和一个输出的第二混频器，第一输入接收由相移本地振荡器产生的信号，第二输入端接收直流信号，该直流信号的值取决于输出端的剩余频谱分量的功率 一个加法器接收从第一和第二混频器输出的信号作为输入，并输出转置的信号。 本发明尤其适用于在Ka频段工作的终端。
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公开(公告)号：US10588595B2
公开(公告)日：2020-03-17
申请号：US14128139
申请日：2012-06-19
摘要： A device and method for initializing an ultrasound beamformer to image an object based on a tool-pose-estimation of the object include an ultrasound imaging array and an object. The ultrasound imaging array operates with the beamformer. The object has a sensor external to the ultrasound imaging array. The tool-pose-estimation includes an estimation of the location and/or the orientation of the object. The tool-pose-estimation of the object is derived by a processor that receives an output of the sensor disposed on the object external to the imaging array that operates with the beamformer. The processor supplies the tool-pose-estimation to the beamformer to initialize the beamformer using the tool-pose-estimation for operating the imaging array.
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公开(公告)号：US10368843B2
公开(公告)日：2019-08-06
申请号：US13511307
申请日：2010-11-15
申请人： Roy Beck Peterson , Yan Shi , Hua Xie , Jean-Luc Robert , Vijay Shamdasani , Robert Randall Entrekin , Anna Teresa Ferandez
发明人： Roy Beck Peterson , Yan Shi , Hua Xie , Jean-Luc Robert , Vijay Shamdasani , Robert Randall Entrekin , Anna Teresa Ferandez
摘要： An ultrasonic diagnostic imaging system produces an image of shear wave velocities by transmitting push pulses to generate shear waves. A plurality of tracking lines are transmitted and echoes received by a focusing beamformer adjacent to the location of the push pulses. The tracking lines are sampled in a time-interleaved manner. The echo data acquired along each tracking line is processed to determine the time of peak tissue displacement caused by the shear waves at points along the tracking line, and the times of peaks at adjacent tracking lines compared to compute a local shear wave velocity. The resultant map of shear wave velocity values is color-coded and displayed over an anatomical image of the region of interest.
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公开(公告)号：US09345455B2
公开(公告)日：2016-05-24
申请号：US14793817
申请日：2015-07-08
申请人： Michael Burcher , Jean-Luc Robert
发明人： Michael Burcher , Jean-Luc Robert
CPC分类号： A61B8/5276 , A61B8/00 , A61B8/12 , A61B8/145 , A61B8/461 , A61B8/5246 , G01S7/52046 , G01S7/52095
摘要： An ultrasonic diagnostic imaging system produces an image with an extended focal range by transmitting a plurality of beams spaced along an array for multiline reception. The receive multilines of a plurality of transmit beams are spatially aligned and are combined with phase adjustment between the respective receive multilines to prevent undesired phase cancellation. The combined multilines produce the effect of an extended transmit focus so that an image produced using the combined multilines exhibits an extended focal range. To prevent motion artifacts the multiline order is adjustable as a function of image motion.
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