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1.发明申请NON-RECIPROCAL TRANSMISSION APPARATUS WITH DIFFERENT BACKWARD AND FORWARD PROPAGATION CONSTANTS, PROVIDED FOR CIRCULARLY POLARIZED WAVE ANTENNA APPARATUS 有权非对称传输装置，具有不同的后向和前向传播常数，提供用于圆形极化波天线装置公开(公告)号：US20160373160A1
公开(公告)日：2016-12-22
申请号：US15121530
申请日：2015-02-25
发明人： Tetsuya UEDA , Andrey POROKHNYUK
摘要： In a circularly polarized wave antenna apparatus including a non-reciprocal transmission line apparatus having forward and backward propagation constants different from each other, the non-reciprocal transmission line apparatus includes a transmission line part for a microwave, a series branch circuit equivalently including a capacitive element, and a shunt branch circuit branched from the transmission line part and equivalently includes an inductive element. The non-reciprocal transmission line apparatus is formed in a nonlinear shape and magnetized in a magnetization direction different from a propagation direction of the microwave. The non-reciprocal transmission line apparatus includes first and second reflectors provided at both ends of the non-reciprocal transmission line apparatus, respectively, and reflecting a signal; and satisfies that a phase difference between each pair of line parts located at positions opposed to each other across a substantially central part of the non-reciprocal transmission line apparatus is substantially 180 degrees.
摘要翻译： 在包括具有彼此不同的正向和反向传播常数的不可逆传输线设备的圆极化波天线设备中，不可逆传输线设备包括用于微波的传输线部分，等效地包括电容的串联分支电路 元件和从传输线部分分支的分流支路，并且等效地包括电感元件。 不可逆传输线装置形成为非线性形状，并且沿与微波传播方向不同的磁化方向磁化。 不可逆的传输线设备包括分别设置在不可逆传输线设备的两端并反射信号的第一和第二反射器; 并且满足位于不对称传输线设备的大致中心部分上彼此相对的位置的每对线路部件之间的相位差大致为180度。
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公开(公告)号：US08792836B2
公开(公告)日：2014-07-29
申请号：US12946688
申请日：2010-11-15
申请人： Mohyee Mikhemar , Hooman Darabi
发明人： Mohyee Mikhemar , Hooman Darabi
CPC分类号： H04B1/582 , H04B1/0458 , H04B1/48
摘要： A front end module includes a duplexer and a balancing network. The duplexer includes a compensation circuit and a transformer three windings having five nodes. The first node for operably coupling an antenna to the first winding; the second node operable to receive an outbound wireless signal and operably couples the first winding to the second winding; the third node operably couples the second winding to a balancing network; the fourth node operably coupled to output a first signal component corresponding to an inbound wireless signal from the third winding; and the fifth node operably coupled to output a second signal component corresponding to an inbound wireless signal from the third winding. The duplexer provides electrical isolation between the first and second signal components and the outbound wireless signal. The compensation module is operable to compensate the electrical isolation between the first and second signals and the outbound wireless signal.
摘要翻译： 前端模块包括双工器和平衡网络。 双工器包括补偿电路和变压器三个具有五个节点的绕组。 用于将天线可操作地耦合到第一绕组的第一节点; 所述第二节点可操作以接收出站无线信号并将所述第一绕组可操作地耦合到所述第二绕组; 第三节点将第二绕组可操作地耦合到平衡网络; 所述第四节点可操作地耦合以输出对应于来自所述第三绕组的入站无线信号的第一信号分量; 并且第五节点可操作地耦合以输出对应于来自第三绕组的入站无线信号的第二信号分量。 双工器提供第一和第二信号分量与出站无线信号之间的电气隔离。 补偿模块可用于补偿第一和第二信号与出站无线信号之间的电隔离。
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公开(公告)号：US4103118A
公开(公告)日：1978-07-25
申请号：US792817
申请日：1977-05-02
申请人： Jay Richard Bergman
发明人： Jay Richard Bergman
IPC分类号： H04B1/58
CPC分类号： H04B1/582
摘要： This autobalance hybrid circuit is used to connect a 2-wire duplex telephone line to a 4-wire line which has separate receive and transmit pairs. The impedance of a balancing network automatically is adjusted to equal the impedance of the 2-wire line, thereby maximizing echo return loss. "Howling" and "singing" are eliminated, regardless of changes in the 2-wire line impedance. Balancing is achieved by comparing the absolute values of the receive line audio voltage components appearing across two coupling transformers, one associated with the 2-wire line and the other with the balancing network. A control signal, indicative of the difference between these components, alters the balancing network impedance until equal voltages are achieved. In this condition, the receive signal cancels out as a common mode in the output circuit, so that none of the receive line audio is returned to the transmit pair.
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公开(公告)号：US827918A
公开(公告)日：1906-08-07
申请号：US1904201124
申请日：1904-04-01
申请人： KITSEE ISIDOR
发明人： KITSEE ISIDOR
CPC分类号： H04M3/2281 , H04B1/582
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公开(公告)号：US20170230076A1
公开(公告)日：2017-08-10
申请号：US15496571
申请日：2017-04-25
发明人： Henrik Sjöland , Stefan Andersson , Tobias Tired , Johan Wernehag
CPC分类号： H04B1/582 , H04B1/109 , H04B1/525 , H04L5/1461
摘要： A duplexer-less transceiver arrangement is disclosed. The transceiver comprises a receiver configured for frequency-division duplex communication with a communication network; a transmitter configured for frequency-division duplex communication with the communication network; an antenna port for connecting to an antenna; a balancing impedance circuit arranged to provide an adaptive impedance arranged to mimic the impedance at the antenna port; and an impedance network differentially connecting the receiver, transmitter, antenna port and balancing impedance circuit, wherein the impedance network includes a cross-connection.
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公开(公告)号：US09705536B2
公开(公告)日：2017-07-11
申请号：US15198798
申请日：2016-06-30
发明人： Luca Fanori , Rinaldo Castello
IPC分类号： H04B1/04 , H04B1/16 , H04B1/40 , H03H7/09 , H03H7/38 , H03H7/42 , H03H11/32 , H03F3/24 , H04B1/58
CPC分类号： H04B1/04 , H03F3/193 , H03F3/245 , H03F2200/06 , H03F2200/09 , H03F2200/541 , H03H7/09 , H03H7/38 , H03H7/42 , H03H11/32 , H04B1/582
摘要： A system includes a balun, a power monitoring circuit, a first circuit, and a second circuit. The balun includes a first inductor to receive an input and a second inductor to couple the input to a load. The power monitoring circuit is configured to monitor an amount of power being delivered to the load when the input is coupled to the load. The first circuit is configured to couple an entire of the second inductor to the first inductor when a first power is delivered to the load. The second circuit is configured to couple a portion of the second inductor to the first inductor when a second power that is less than the first power is delivered to the load.
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公开(公告)号：US5974137A
公开(公告)日：1999-10-26
申请号：US711682
申请日：1996-09-04
申请人： Laurence L. Sheets , Stanley Chmura
发明人： Laurence L. Sheets , Stanley Chmura
摘要： The present invention provides a two-wire line conditioning apparatus having an improved calibration and cancellation circuit and provides an improved calibration method using a multitone calibration signal. The output is monitored by an AGC circuit which controls the output, and prevents hard clipping. This is particularly important for DTMF receivers. Additionally, the apparatus automatically adjusts an electronic hybrid as part of a calibration procedure so as to eliminate undesirable echo effects when calls are placed along the line. The electronic hybrid balancing process and echo cancellation circuitry may also be utilized in a circuit for converting four-wire communications systems to two-wire communications systems. The line conditioning device of the present invention utilizes a multitone signal to simulate the voice frequency spectrum between approximately 500 Hz and 3500 Hz to probe the line side with a plurality of tones (e.g., 500, 1500 and 3500 Hz; or 500, 1000, 1500, 2000, 2500, 3000, 3500 Hz). The amplitude of the tones are weighted to reflect the transmissibility in the voice band. The value of Z.sub.var considered to be optimal is that value which minimizes the power of the echo of the weighted multitone signal. Embodiments are presented that require intervention by a technician for the calibration procedure, and embodiments that automatically perform calibration using dial tone without manual intervention.
摘要翻译： 本发明提供一种具有改进的校准和消除电路的双线调节装置，并提供使用多音校准信号的改进的校准方法。 输出由控制输出的AGC电路监控，并防止硬限幅。 这对于DTMF接收机尤其重要。 此外，该设备自动调整电子混合动力作为校准过程的一部分，以便当沿着线路放置呼叫时消除不期望的回声效应。 电子混合平衡处理和回波消除电路也可以用于将四线通信系统转换成两线通信系统的电路中。 本发明的线路调节装置利用多音信号来模拟大约500Hz到3500Hz之间的语音频谱，以多个音调（例如，500,1500和3500Hz;或500,1000Hz）探测线路侧， 1500,2000,2500,3000,3500Hz）。 音调的幅度被加权以反映语音频带中的传输性。 被认为是最佳的Zvar的值是使加权多音信号的回波功率最小化的值。 呈现需要技术人员进行校准过程的干预的实施例，以及在没有手动干预的情况下使用拨号音自动执行校准的实施例。
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公开(公告)号：US5963638A
公开(公告)日：1999-10-05
申请号：US711681
申请日：1996-09-04
申请人： Laurence L. Sheets
发明人： Laurence L. Sheets
摘要： The present invention provides a two-wire line conditioning apparatus having an improved calibration and cancellation circuit and provides an improved calibration method using a multitone calibration signal. The apparatus automatically adjusts an electronic hybrid as part of a calibration procedure so as to eliminate undesirable echo effects when calls are placed along the line. The hybrid has capacitors and resistors which can be switched into and out of the circuit by using simple transistor devices. The electronic hybrid balancing process and echo cancellation circuitry may also be utilized in a circuit for converting four-wire communications systems to two-wire communications systems. The line conditioning device of the present invention utilizes a multitone signal to simulate the voice frequency spectrum between approximately 500 Hz and 3500 Hz to probe the line side with a plurality of tones (e.g., 500, 1500 and 3500 Hz; or 500, 1000, 1500, 2000, 2500, 3000, 3500 Hz). The amplitude of the tones are weighted to reflect the transmissibility in the voice band. The value of Z.sub.var considered to be optimal is that value which minimizes the power of the echo of the weighted multitone signal. Embodiments are presented that require intervention by a technician for the calibration procedure, and embodiments that automatically perform calibration using dial tone without manual intervention.
摘要翻译： 本发明提供一种具有改进的校准和消除电路的双线调节装置，并提供使用多音校准信号的改进的校准方法。 该装置自动调整电子混合动力作为校准程序的一部分，以便在沿着线路放置呼叫时消除不期望的回波效应。 混合电路具有电容器和电阻器，可以通过使用简单的晶体管器件将电路和电阻切换到电路中。 电子混合平衡处理和回波消除电路也可以用于将四线通信系统转换成两线通信系统的电路中。 本发明的线路调节装置利用多音信号来模拟大约500Hz到3500Hz之间的语音频谱，以多个音调（例如，500,1500和3500Hz;或500,1000Hz）探测线路侧， 1500,2000,2500,3000,3500Hz）。 音调的幅度被加权以反映语音频带中的传输性。 被认为是最佳的Zvar的值是使加权多音信号的回波功率最小化的值。 呈现需要技术人员进行校准过程的干预的实施例，以及在没有手动干预的情况下使用拨号音自动执行校准的实施例。
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