公开(公告)号：US10056935B2

公开(公告)日：2018-08-21

申请号：US15497120

申请日：2017-04-25

申请人： SKYWORKS SOLUTIONS, INC.

发明人： Junhyung Lee

IPC分类号： H04B1/44 ,  H04B7/08 ,  H03K17/16

CPC分类号： H04B1/44 ,  H03K17/063 ,  H03K17/102 ,  H03K17/122 ,  H03K17/161 ,  H03K17/693 ,  H03K2017/066 ,  H04B7/0831 ,  H04B15/00

摘要： Switching circuits for wireless applications. In some embodiments, a switching circuit can include a common node and a plurality of series arm switches with each being capable of connecting the common node and a respective signal node. The switching circuit can further include a shunt arm switch for each of the series arm switches. The shunt arm switch can be capable of connecting the signal node of the respective series arm switch to a ground. The switching circuit can further include a compensation circuit coupled to the common node and configured to compensate for a parasitic effect resulting from some or all of the series arm switches and the shunt arm switches.

公开(公告)号：US09450665B2

公开(公告)日：2016-09-20

申请号：US11548596

申请日：2006-10-11

申请人： Wesley Alan Sampson ,  Aristotele Hadjichristos ,  Gurkanwal S Sahota

发明人： Wesley Alan Sampson ,  Aristotele Hadjichristos ,  Gurkanwal S Sahota

IPC分类号： H04B7/10 ,  H04B7/08 ,  H04W88/06

CPC分类号： H04B7/0822 ,  H04B1/006 ,  H04B7/0825 ,  H04B7/0831 ,  H04B7/0871 ,  H04W88/06

摘要： A diversity receiver capable of receiving a CDMA system (e.g., a W-CDMA system) and a TDMA system (e.g., a GSM system), with receive diversity for at least one system, is described. W-CDMA is often referred to as UMTS. In one design, the diversity receiver includes a first receiver for GSM and a second receiver for UMTS. The first receiver may be implemented with one receiver design, may be spec-compliant for GSM, and may also support UMTS. The second receiver may be implemented with another receiver design, may be spec-compliant for UMTS, and may also support GSM. The first receiver may include a lowpass filter having a bandwidth that is adjustable for GSM and UMTS. The second receiver may include a bandpass filter used to attenuate a transmit frequency range for UMTS. Each receiver may include circuit blocks that are used for both GSM and UMTS.

摘要翻译： 描述了能够接收具有用于至少一个系统的接收分集的CDMA系统（例如，W-CDMA系统）和TDMA系统（例如，GSM系统）的分集接收机。 W-CDMA通常被称为UMTS。 在一种设计中，分集接收机包括用于GSM的第一接收机和用于UMTS的第二接收机。 第一接收机可以用一个接收机设计来实现，可以对GSM进行规范兼容，并且还可以支持UMTS。 第二接收机可以用另一个接收机设计来实现，可以对UMTS进行规范兼容，并且还可以支持GSM。 第一接收机可以包括具有可针对GSM和UMTS调整的带宽的低通滤波器。 第二接收机可以包括用于衰减UMTS的发射频率范围的带通滤波器。 每个接收机可以包括用于GSM和UMTS的电路块。

公开(公告)号：US20140341125A1

公开(公告)日：2014-11-20

申请号：US14269769

申请日：2014-05-05

申请人： QUALCOMM Incorporated

发明人： Abhinav Dayal ,  Manjinder Singh Sandhu ,  Madhusudan Kinthada Venkata

IPC分类号： H04B1/44 ,  H04W72/12

CPC分类号： H04B1/44 ,  H04B7/0814 ,  H04B7/082 ,  H04B7/0831 ,  H04W72/1289

摘要： Methods, systems, and devices are described for triggering an antenna switch. A settling time may be identified, and the antenna switch may be delayed based at least in part on the identified settling time. The settling time may include an estimated delay in reception attributable to settling following the antenna switch.

摘要翻译： 描述了用于触发天线开关的方法，系统和装置。 可以确定建立时间，并且至少部分地基于所识别的建立时间来延迟天线开关。 建立时间可以包括归因于天线开关之后的稳定的估计的接收延迟。

公开(公告)号：US08270919B2

公开(公告)日：2012-09-18

申请号：US12724693

申请日：2010-03-16

申请人： Yoshitaka Yoshino ,  Chisato Komori ,  Koichi Mukai

发明人： Yoshitaka Yoshino ,  Chisato Komori ,  Koichi Mukai

IPC分类号： H04B1/16

CPC分类号： H04B7/084 ,  H01Q1/46 ,  H04B7/0825 ,  H04B7/0831 ,  H04B7/0871

摘要： A receiving apparatus includes: an electronic device; a first antenna which is provided so as to be separate from a main body of the electronic device and receives broadcast waves; and a power transmission cable which transmits power to the electronic device. In the power transmission cable, a high-frequency blocking section is disposed on the side of a power source, and at least a part of the power transmission cable functions as a second antenna receiving a broadcast wave. The electronic device includes a diversity processor executing a diversity process on a signal received by the first antenna and a signal received by the second antenna.

摘要翻译： 一种接收设备，包括：电子设备; 第一天线，被设置为与电子设备的主体分离并接收广播波; 以及向电子设备发送电力的电力传输电缆。 在电力传输电缆中，高频阻挡部分设置在电源侧，并且至少一部分电力传输电缆用作接收广播波的第二天线。 该电子设备包括对由第一天线接收的信号和由第二天线接收的信号执行分集处理的分集处理器。

公开(公告)号：US08170510B2

公开(公告)日：2012-05-01

申请号：US12475352

申请日：2009-05-29

申请人： Mikael Bergholz Knudsen ,  Bernd Adler ,  Peter Bundgaard ,  Jan-Erik Mueller ,  Gert F Pedersen ,  Mauro Pelosi

发明人： Mikael Bergholz Knudsen ,  Bernd Adler ,  Peter Bundgaard ,  Jan-Erik Mueller ,  Gert F Pedersen ,  Mauro Pelosi

IPC分类号： H04B1/04

CPC分类号： H04B1/04 ,  H01Q1/525 ,  H04B1/3805 ,  H04B1/525 ,  H04B7/0831

摘要： Disclosed herein are techniques, systems, and methods relating to minimizing mutual coupling between a first antenna and a second antenna.

摘要翻译： 这里公开了与最小化第一天线和第二天线之间的相互耦合有关的技术，系统和方法。

公开(公告)号：US20070200773A1

公开(公告)日：2007-08-30

申请号：US11361860

申请日：2006-02-24

申请人： Weiping Dou ,  Stephen Senatore ,  Arthur Zarnowitz

发明人： Weiping Dou ,  Stephen Senatore ,  Arthur Zarnowitz

IPC分类号： H01Q1/24

CPC分类号： H01Q21/28 ,  H01Q21/29 ,  H04B7/0602 ,  H04B7/0825 ,  H04B7/0831

摘要： Various embodiments of an internal diversity antenna architecture are described. In one embodiment, a wireless device may include a housing enclosing a printed circuit board, a first diversity antenna, and a second diversity antenna internal to the housing. The second diversity antenna may be positioned substantially near the bottom of the housing or the bottom the printed circuit board. Other embodiments are described and claimed.

摘要翻译： 描述内部分集天线架构的各种实施例。 在一个实施例中，无线设备可以包括封装印刷电路板的壳体，第一分集天线和壳体内部的第二分集天线。 第二分集天线可以基本上位于壳体的底部或印刷电路板的底部附近。 描述和要求保护其他实施例。

公开(公告)号：US06430404B1

公开(公告)日：2002-08-06

申请号：US09413124

申请日：1999-10-06

申请人： Heinz Lindenmeier ,  Jochen Hopf ,  Leopold Reiter

发明人： Heinz Lindenmeier ,  Jochen Hopf ,  Leopold Reiter

IPC分类号： H04B1700

CPC分类号： H04B7/0808 ,  H04B7/0814 ,  H04B7/0831

摘要： A scanning antenna diversity system for motor vehicles having at least two antennas disposed in a multi-antenna installation. The diversity system also contains a controllable logic circuitry, and a receiver for receiving a signal from the antennas. Connected to the receiver is a diversity processor controlled by the receiver, for stepping the logic circuitry to another switching position during the presence of reception interference. This occurs during the shortest possible comparison times, which are initiated in cyclic repetition upon expiration of a longer time interval by level comparison circuitry for detecting signals. In this case, the level comparison circuitry determines a maximum level switching position associated with the greater actual received signal in an actual receive situation. Thus, the level comparison time is selected sufficiently short so that the reception is not audibly impaired by the level comparison time. In addition, the diversity processor is designed so that the received signals are cyclically switched through to the receiver and tested for freedom from interference. This testing determines and detects the maximum level switching position associated with the greater actual received signal in addition to discrete switching positions of the logic circuitry, when the received signals are switched through to the receiver.

摘要翻译： 一种用于机动车辆的扫描天线分集系统，其具有设置在多天线设备中的至少两个天线。 分集系统还包含可控逻辑电路和用于从天线接收信号的接收器。 连接到接收器是由接收器控制的分集处理器，用于在存在接收干扰的情况下将逻辑电路步进到另一切换位置。 这发生在最短的可能的比较时间期间，其在由用于检测信号的电平比较电路的较长时间间隔期满后以循环重复开始。 在这种情况下，电平比较电路确定在实际接收情况下与更大的实际接收信号相关联的最大电平切换位置。 因此，电平比较时间被选择得足够短，使得接收不会被电平比较时间听得见。 此外，分集处理器被设计成使得接收的信号被循环地切换到接收机并且被测试以免受干扰。 当接收到的信号被切换到接收机时，除了逻辑电路的离散切换位置之外，该测试确定并且检测与更大的实际接收信号相关联的最大电平切换位置。

公开(公告)号：US20010016478A1

公开(公告)日：2001-08-23

申请号：US09783000

申请日：2001-02-14

申请人： FUBA Automotive GmbH & Co. KG

发明人： Heinz Lindenmeier ,  Jochen Hopf ,  Leopold Reiter

IPC分类号： H04B007/00 ,  H04B001/06

CPC分类号： H04B7/0874 ,  H04B7/0814 ,  H04B7/0831 ,  H04B7/084

摘要： An antenna diversity system for receiving frequency-modulated (FM) radio signals with the phase-controlled summation of antenna signals for motor vehicles equipped with a multi-antenna system having at least two antenna output signals, and a receiver with an input for each of a first and a second received signal path, wherein the second of the two received signal paths contains a phase-shifter controlled by a phase-controller. The received signal has the same phase on the output of the phase-shifter as in the first signal path. The two received signals are added up in a phase-coincident manner in a summation circuit, and the added-up signal is supplied to the FM frequency modulator. The multi-antenna system contains a controllable logic circuit, so that a received signal that is different in terms of diversity, is supplied in each case to at least one of the two inputs of the receiver in different switching positions assumed by the selector switches, and the added-up signal is supplied to an interference detector for extremely rapid detection of an added-up signal disturbed by a frequency swing. Thus, in the presence of a reception interference, the interference-detecting signal of the interference detector actuates the logic switching device to another switching position, and wherein the phase-controller serves as a low-pass filter for limiting the speed of the phase control.

摘要翻译： 一种天线分集系统，用于通过配备有具有至少两个天线输出信号的多天线系统的机动车辆的天线信号的相位控制求和来接收频率调制（FM）无线电信号，以及具有每个 第一和第二接收信号路径，其中两个接收信号路径中的第二个包含由相位控制器控制的移相器。 接收到的信号与第一信号路径中的移相器的输出具有相同的相位。 两个接收信号在相加电路中以相位相加的方式相加，并且将相加的信号提供给FM频率调制器。 多天线系统包括可控逻辑电路，使得在分集方面不同的接收信号在每种情况下被提供给由选择器开关假定的不同切换位置中的接收机的两个输入中的至少一个， 并且将相加的信号提供给干扰检测器，以极快地检测由频率摆动干扰的相加信号。 因此，在存在接收干扰的情况下，干扰检测器的干扰检测信号将逻辑开关装置启动到另一个切换位置，并且其中相位控制器用作低通滤波器，用于限制相位控制的速度 。

公开(公告)号：US5465411A

公开(公告)日：1995-11-07

申请号：US167332

申请日：1993-12-15

申请人： Yukinaga Koike

发明人： Yukinaga Koike

IPC分类号： H04B1/10 ,  H04B7/08 ,  H04B1/06

CPC分类号： H04B7/0805 ,  H04B7/0831

摘要： A diversity FM receiver of the antenna switching system type which includes first and second antennas, an antenna switching circuit, an FM receiving unit and a sample hold circuit. The receiving unit functions to demodulate the wave signal input thereto and to output a wave detection signal. The switching circuit switches the signal received from one antenna or the other antenna to the receiving unit in accordance with the amplitude of the wave detection signal. The sample hold circuit maintains the voltage of the wave detection signal during switching at the value of the signal immediately before switching.

摘要翻译： 包括第一和第二天线的天线切换系统类型的分集FM接收机，天线切换电路，FM接收单元和采样保持电路。 接收单元用于解调输入到其中的波信号并输出​​波检测信号。 开关电路根据波检测信号的幅度将从一个天线或另一个天线接收的信号切换到接收单元。 采样保持电路在切换之前立即保持信号切换期间的波检测信号的电压。

公开(公告)号：US5315185A

公开(公告)日：1994-05-24

申请号：US952406

申请日：1992-09-30

申请人： Imao Usimaru

发明人： Imao Usimaru

IPC分类号： H04B7/08 ,  H04B15/00

CPC分类号： H04B7/082 ,  H04B7/0831

摘要： A switching noise cancelling system in a space diversity receiving system, comprising a comparator for comparing two receiving signal levels received by two antennas to provide a high level signal or a low level signal in response to the result of the comparison, a first switch for selecting, in response to the output signal of the comparator, one of two signals received by the antennas, a noise generating unit for generating noises substantially the same as noises generated by the switch, and a noise cancelling unit for cancelling the noises generated by the first switch by using the noises generated by the noise generating unit, whereby noises generated by the switch are canceled.

摘要翻译： 一种空间分集接收系统中的切换噪声消除系统，包括比较器，用于比较由两个天线接收的两个接收信号电平，以响应比较结果提供高电平信号或低电平信号;第一开关，用于选择 响应于比较器的输出信号，由天线接收的两个信号中的一个信号，用于产生与由开关产生的噪声基本上相同的噪声的噪声产生单元，以及用于消除由第一个信号产生的噪声的噪声消除单元 通过使用由噪声产生单元产生的噪声来切换，从而消除由开关产生的噪声。