公开(公告)号：US09960825B2

公开(公告)日：2018-05-01

申请号：US15548300

申请日：2015-03-06

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： Lars Manholm ,  Sven Petersson ,  Stefan Johansson

IPC分类号： H03D5/00 ,  H04B7/0452 ,  H04B7/06

CPC分类号： H04B7/0452 ,  H04B7/0617 ,  H04B7/0695 ,  H04B7/088

摘要： The present invention relates to a method and control system for adapting beam patterns generated by at least one array antenna serving one or more users. Each array antenna comprising multiple antenna subarrays within an aperture and is configured to provide coverage to a service area using a set of fixed beams, each fixed beam having a beam pattern covering a portion of the service area which beam pattern is generated by applying weights to the antenna subarrays.

公开(公告)号：US09942072B1

公开(公告)日：2018-04-10

申请号：US15417450

申请日：2017-01-27

申请人： HARRIS CORPORATION

发明人： Mac Lamar Hartless ,  Stephen Robert Wynn ,  George W. Kellam, III

IPC分类号： H03C5/00 ,  H03D5/00 ,  H03K7/10 ,  H03K9/10 ,  H04L27/22 ,  H04L27/14

CPC分类号： H04L27/22 ,  H04L27/14

摘要： A wireless communications device may include a wireless receiver, and an adaptive demodulator coupled to the wireless receiver. The adaptive demodulator is configured to apply first and second bandpass filters to amplitude information of a received signal at first and second frequency bands, respectively, and classify the received signal as one of a PSK modulation type, a second PSK modulation type, and a third FSK modulation type based upon whether a tone exists in the amplitude information of the received signal in one or more of the first and second frequency bands. The adaptive demodulator is configured to adjust a demodulating parameter based upon a classified modulation type of the received signal.

公开(公告)号：US09572199B2

公开(公告)日：2017-02-14

申请号：US14241233

申请日：2011-10-19

申请人： Guy Drory ,  Eliya Babitsky ,  Ron Bercovich

发明人： Guy Drory ,  Eliya Babitsky ,  Ron Bercovich

IPC分类号： H03D5/00 ,  H04W92/02 ,  H04B1/06 ,  H04B1/7115 ,  H04B1/00 ,  H04B1/16

CPC分类号： H04W92/02 ,  H04B1/005 ,  H04B1/06 ,  H04B1/16 ,  H04B1/7115 ,  H04B2201/70714

摘要： A multimode rake receiver comprise a common antenna interface, arranged to at least receive in a first mode a first CDMA radio channel carrying information encoded according to a first baseband modulation standard and to receive in a second mode a second CDMA radio channel carrying information encoded according to a second baseband modulation standard; and a common signal processing path, at least arranged to process in the first mode the first CDMA radio channel and in the second mode the second CDMA radio channel, wherein the common signal path comprises a common descrambling and de-spreading unit and a common hybrid code generating unit arranged to provide to the common descrambling and de-spreading unit chip codes applicable in the first mode to the first CDMA radio channel and in the second mode to the second CDMA radio channel.

摘要翻译： 多模Rake接收机包括公共天线接口，其被布置为至少以第一模式接收携带根据第一基带调制标准编码的信息的第一CDMA无线电信道，并且以第二模式接收携带根据 到第二基带调制标准; 以及公共信号处理路径，至少被布置为在第一模式中处理第一CDMA无线电信道，并且在第二模式中处理第二CDMA无线电信道，其中公共信号路径包括公共解扰和解扩单元和公共混合 代码生成单元，被配置为向第一CDMA无线电信道和第二模式提供适用于第一模式的公共解扰和解扩单元码片码到第二CDMA无线电信道。

公开(公告)号：US09014293B2

公开(公告)日：2015-04-21

申请号：US13841889

申请日：2013-03-15

申请人： Medusa Scientific, LLC

发明人： Richard C. Gerdes

IPC分类号： H03C5/00 ,  H03D5/00 ,  H04L27/02

CPC分类号： H04L27/122 ,  H04L7/0331 ,  H04L27/02 ,  H04L27/10 ,  H04L27/14 ,  H04L27/30 ,  H04L27/32 ,  H04L2027/0051 ,  H04L2027/0055 ,  H04L2027/0067

摘要： Systems and methods for transpositional modulation and demodulation are provided. One such method for generating a signal includes the steps of providing a look-up table having a plurality of quarter-cycle waveforms, each of said quarter-cycle waveforms associated with a respective input level; receiving an input signal; and outputting quarter-cycle waveforms associated with levels of the received input signal. Systems for transpositional modulation are also provided. One such system for generating a signal includes a look-up table having a plurality of quarter-cycle waveforms. Each of the quarter-cycle waveforms are associated with a respective input level, and the look-up table is configured to receive an input signal, and output quarter-cycle waveforms associated with levels of the received input signal.

摘要翻译： 提供了转置调制和解调的系统和方法。 一种用于产生信号的方法包括以下步骤：提供具有多个四分之一周期波形的查找表，每个所述四分之一周期波形与相应的输入电平相关联; 接收输入信号; 并输出与接收到的输入信号的电平相关联的四分之一周期波形。 还提供了转置调制系统。 用于产生信号的一个这样的系统包括具有多个四分之一周期波形的查找表。 四分之一周期波形中的每一个与相应的输入电平相关联，并且查找表被配置为接收输入信号，并且输出与所接收的输入信号的电平相关联的四分之一周期波形。

公开(公告)号：US08670733B2

公开(公告)日：2014-03-11

申请号：US13355739

申请日：2012-01-23

申请人： Arya Behzad ,  Ahmadreza Rofougaran

发明人： Arya Behzad ,  Ahmadreza Rofougaran

IPC分类号： H04B17/02 ,  H04B7/08 ,  H03D5/00 ,  H04B1/16 ,  H04M1/00

CPC分类号： H04B1/0067 ,  H04B1/005 ,  H04B1/406

摘要： A multimode communication device with a shared signal path programmable filter and a method for utilizing a shared signal path programmable filter in a multimode communication device. Various aspects of the present invention comprise a first module adapted to receive a first communication signal (e.g., corresponding to a first communication protocol) and a second module adapted to receive a second communication signal (e.g., corresponding to a second communication protocol). A shared filter, communicatively coupled to the first and second modules, may be adapted to filter the first and/or second communication signals in accordance with a plurality of selectable sets of filter response characteristics (e.g., associated with the first and second communication protocols). A filter control module may be adapted to select a set of filter response characteristics from a plurality of such sets and program the shared filter to filter a communication signal in accordance with the selected set.

摘要翻译： 一种具有共享信号路径可编程滤波器的多模通信装置和在多模通信装置中利用共享信号路径可编程滤波器的方法。 本发明的各个方面包括适于接收第一通信信号（例如，对应于第一通信协议）的第一模块和适于接收第二通信信号（例如，对应于第二通信协议）的第二模块。 通信地耦合到第一和第二模块的共享滤波器可以适于根据多个可选择的滤波器响应特性集（例如，与第一和第二通信协议相关联）来过滤第一和/或第二通信信号， 。 滤波器控制模块可以适于从多个这样的集合中选择一组滤波器响应特性，并且对共享滤波器进行编程以根据所选择的集合来过滤通信信号。

公开(公告)号：US08306067B2

公开(公告)日：2012-11-06

申请号：US12668298

申请日：2007-04-11

申请人： Yingjie Di ,  Tao He ,  Bin He ,  Mengmeng Shu ,  Jingmin Huang

发明人： Yingjie Di ,  Tao He ,  Bin He ,  Mengmeng Shu ,  Jingmin Huang

IPC分类号： H04J1/00 ,  H03D7/16 ,  H03D5/00 ,  H03D3/00 ,  H04B7/12 ,  H04L27/14 ,  H03K3/03

CPC分类号： H01P1/2136

摘要： The invention discloses a dual frequency multiplexer by which a first and second coaxial harmonic oscillator type band pass filters are disposed in a box. The box includes a base body, a cover plate and a cover body. The two coaxial harmonic oscillator type hand pass filters are located on the base body and spaced each other by a metal plate; the multiplexer port, first and second ports are positioned on lateral side of the base body. The blocking capacitors are contained in the coaxial chamber of the two coaxial harmonic oscillator type band pass filters. The cover plate is secured on the base body; the first and second direct current circuits are placed on the cover plate; the low pass filters of the first and second direct current circuits are fixed on an edge of a top surface of the coaxial chamber by means of a support member; the cover body and the base body are fastened with each other. The blocking capacitors each are of distributed parameter capacitor. Utilization of distributed blocking capacitors makes the product of the invention small. Moreover, improvement of the structure of the invention brings effect such as less differential loss, large power capacity, as well as high isolation degree between circuits.

摘要翻译： 本发明公开了一种双频多路复用器，其中第一和第二同轴谐波振荡器型带通滤波器设置在盒中。 盒子包括基体，盖板和盖体。 两个同轴谐波振荡器型手持式滤波器位于基体上，并通过金属板彼此隔开; 多路复用器端口，第一和第二端口位于基体的侧面。 隔离电容器包含在两个同轴谐波振荡器型带通滤波器的同轴腔室中。 盖板固定在基体上; 第一和第二直流电路放置在盖板上; 第一和第二直流电路的低通滤波器借助于支撑构件固定在同轴腔的顶表面的边缘上; 盖体和基体彼此紧固。 隔离电容器分别为分布参数电容器。 分散阻塞电容器的使用使得本发明的产品变小。 此外，本发明的结构的改进带来诸如差分损耗较小，功率容量大，电路间隔离度高的效果。

公开(公告)号：US20110133830A1

公开(公告)日：2011-06-09

申请号：US13057333

申请日：2009-07-29

申请人： Bernard Huyart ,  Kais Mabrouk

发明人： Bernard Huyart ,  Kais Mabrouk

IPC分类号： H03D5/00

CPC分类号： H03D3/007

摘要： The circuit (7) for demodulating three mutually phase-shifted components of a baseband signal, in order to provide two quadrature demodulation components (I, Q), comprises—three circuit inputs (4, 5, 6), designed to receive respectively the three components, —first and second adder circuits (77, 78) and—a bank (70) of weighting circuits (71, 72, 73, 74, 75, 76) linked, at input, to the three circuit inputs (4, 5, 6) and linked, at output, to inputs of the first and second adder circuits (77, 78) so as to transmit to each adder input, with a determined weighting, a particular one of said three components, the weightings being chosen so that the first and second adder circuits (77, 78) provide the said two quadrature demodulation components (I, Q).

摘要翻译： 用于解调基带信号的三个相互相移分量的电路（7），以提供两个正交解调分量（I，Q），包括三个电路输入（4,5,6），分别被设计为接收 三个组件，第一和第二加法器电路（77,78）和加权电路（71,72,73,74,75,76）的组（70）在输入端连接到三个电路输入端（4， 在输出端连接到第一和第二加法器电路（77,78）的输入端，以便以确定的权重向每个加法器输入发送所述三个分量中的特定一个，权重被选择 使得第一和第二加法器电路（77,78）提供所述两个正交解调分量（I，Q）。

公开(公告)号：US20110085612A1

公开(公告)日：2011-04-14

申请号：US12994680

申请日：2009-05-25

申请人： Kazushi Muraoka ,  Masayuki Ariyoshi

发明人： Kazushi Muraoka ,  Masayuki Ariyoshi

IPC分类号： H04B7/00 ,  H04L27/28 ,  H04J11/00 ,  H04B1/18 ,  H03D5/00

CPC分类号： H04W16/14 ,  H04L27/0006 ,  H04W88/02

摘要： A radio system includes: a memory which stores a system parameter and a pseudo parameter, the system parameter being used for generation of a feature value specific to a search target radio system, the pseudo parameter being similar to the system parameter; a feature value generator which generates one or a plurality of the feature values based on a signal in a received frequency band by using the system parameter; a non-feature value generator which generates one or a plurality of non-feature values based on the signal in the received frequency band by using the pseudo parameter; and a determination section which determines whether or not a signal of the search target radio system exists by using the one or the plurality of the feature values and the one or the plurality of non-feature values.

摘要翻译： 无线电系统包括：存储器，其存储系统参数和伪参数，所述系统参数用于生成特定于搜索目标无线电系统的特征值，所述伪参数类似于所述系统参数; 特征值生成器，其通过使用所述系统参数，基于接收到的频带中的信号生成一个或多个所述特征量; 非特征值生成器，其通过使用所述伪参数，基于所述接收频带中的信号生成一个或多个非特征值; 以及确定部，其通过使用所述一个或多个所述特征值以及所述一个或多个非特征值来确定是否存在所述搜索目标无线电系统的信号。

公开(公告)号：US20110009080A1

公开(公告)日：2011-01-13

申请号：US12831201

申请日：2010-07-06

申请人： Kishore Seendripu ,  Raymond Montemayor ,  Sheng Ye ,  Glenn Chang ,  Curtis Ling

发明人： Kishore Seendripu ,  Raymond Montemayor ,  Sheng Ye ,  Glenn Chang ,  Curtis Ling

IPC分类号： H03D5/00

CPC分类号： H04L5/06 ,  H03D3/008 ,  H03D3/009 ,  H03D7/166 ,  H04B1/30

摘要： A receiver can be configured to include an RF front end that is configured to downconvert a received signal to a baseband signal or a low Intermediate Frequency (IF) signal. The receiver can downconvert the desired signal from an RF frequency in the presence of numerous interference sources to a baseband or low IF signal for filtering and channel selection. The filtered baseband or low IF signal can be converted to a digital representation. The digital representation of the signal can be upconverted in the digital domain to a programmable IF frequency. The digital IF signal can be converted to an analog IF signal that can be processed by legacy hardware.

摘要翻译： 接收机可以被配置为包括被配置为将接收到的信号下变频为基带信号或低中频（IF）信号的RF前端。 接收机可以在存在多个干扰源的情况下将来自RF频率的期望信号下变频到用于滤波和信道选择的基带或低IF信号。 滤波后的基带或低IF信号可以转换为数字表示。 信号的数字表示可以在数字域中上转换成可编程的中频。 数字IF信号可以转换为可由传统硬件处理的模拟IF信号。

公开(公告)号：US07813443B2

公开(公告)日：2010-10-12

申请号：US11405240

申请日：2006-04-17

申请人： Michael Shiba ,  Wayne Ouchida

发明人： Michael Shiba ,  Wayne Ouchida

IPC分类号： H03K7/10 ,  H03C5/00 ,  H03D5/00 ,  H03K9/10

CPC分类号： H04L1/1867 ,  H04B7/0608

摘要： A transmitter including a plurality of transmitting antennas and a processor operably coupled to the plurality of transmitting antennas. The processor is configured to select a first antenna from the plurality of transmitting antennas for transmission of a frame of data, determine if the frame is successfully received by a receiver, and select a second antenna different than the first antenna from the plurality of transmitting antennas for retransmission of the frame if it is determined that the frame was not successfully received by the receiver. The processor is configured to select a different antenna than a previous antenna for retransmission of the frame each time it is determined that the frame was not successfully received by the receiver. The processor is configured to discard the frame from further transmission if it is determined that the frame was not successfully received by the receiver after a number of transmission attempts.

摘要翻译： 一种包括多个发射天线和可操作地耦合到所述多个发射天线的处理器的发射机。 所述处理器被配置为从所述多个发射天线中选择第一天线以传输数据帧，确定所述帧是否被接收机成功接收，并且从所述多个发射天线中选择与所述第一天线不同的第二天线 如果确定帧未被接收机成功接收，则用于帧的重传。 每当确定帧未被接收机成功接收时，处理器被配置为选择与先前天线不同的天线，用于帧的重传。 如果在多次发送尝试之后确定帧未被接收机成功接收，则处理器被配置为丢弃该帧进一步传输。