公开(公告)号：US20170187509A1

公开(公告)日：2017-06-29

申请号：US15118164

申请日：2014-02-12

申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

发明人： Ming LI ,  Youping SU

IPC分类号： H04L5/14 ,  H04W72/04

CPC分类号： H04L5/14 ,  H04B1/0057 ,  H04B1/0075 ,  H04B1/0082 ,  H04B1/26 ,  H04W72/0453 ,  H04W88/02

摘要： In a method of a heterodyne FDD receiver for enabling reception of a multi-band RXRF signal spectrum, an RXRF signal spectrum is received, which comprises a lower frequency band and a higher frequency band. A Local Oscillator, LO, output frequency, fLO, is selected based on a frequency fA of the lower frequency band, and a frequency fB of the higher frequency band. Moreover, the RXRF signal spectrum is frequency shifted into an RXIF signal spectrum, by mixing the RXRF signal spectrum with the LO output frequency fLO. The LO frequency fLO is selected to satisfy fA

公开(公告)号：US09258100B2

公开(公告)日：2016-02-09

申请号：US14080995

申请日：2013-11-15

申请人： BROADCOM CORPORATION

发明人： Arya Reza Behzad ,  Jeyhan Karaoguz ,  John Walley ,  David Rosmann ,  Brima B. Ibrahim ,  Vinko Erceg

IPC分类号： H04L5/00 ,  H04B1/00 ,  H04B1/28 ,  H04L5/06

CPC分类号： H04L5/0058 ,  H04B1/0075 ,  H04B1/28 ,  H04L5/06

摘要： A wireless device includes processing circuitry and a Radio Frequency (RF) receiver section. The processing circuitry determines a set of a plurality of information signals of interest within a RF Multiple Frequency Bands Multiple Standards (MFBMS) signal. The RF receiver section down-converts the plurality of information signals by a shift frequency to produce a plurality of down-converted signals and filters the plurality of down-converted signals to produce a plurality of filtered signals corresponding to the set of the information signals of interest. The processing circuitry further extracts data corresponding to the set of the information signals from the plurality of filtered signals.

摘要翻译： 无线设备包括处理电路和射频（RF）接收器部分。 处理电路在RF多频带多标准（MFBMS）信号中确定感兴趣的多个信息信号的集合。 RF接收器部分通过移位频率对多个信息信号进行下变频以产生多个下变频信号，并且对多个下变频信号进行滤波，以产生对应于信息信号组的多个滤波信号 利益。 处理电路还从多个滤波信号中提取对应于该组信息信号的数据。

公开(公告)号：US09191037B2

公开(公告)日：2015-11-17

申请号：US14511823

申请日：2014-10-10

申请人： Ubiquiti Networks, Inc.

发明人： Lance D. Lascari ,  Robert J. Pera

IPC分类号： H04B1/00 ,  H04B1/26

CPC分类号： H04B1/0075 ,  H04B1/14 ,  H04B1/26 ,  H04B1/28 ,  H04B1/3805

摘要： Apparatuses and methods for simultaneously operating as a wireless radio and monitoring the local frequency spectrum. For example, described herein are wireless radio devices that use a secondary receiver to monitor frequencies within the operating band and prevent or avoid interferers, including in particular half-IF interferers. The systems, devices, and methods described herein may adjust the intermediate frequency in a superheterodyne receiver to select an intermediate frequency that minimizes interference. In particular, described herein are apparatuses and methods that use a second receiver which is independent of the first receiver and may be connected to the same receiving antenna to monitor the geographically local frequency spectrum and may detect spurious interferers, allowing the primary receiver to adjust the intermediate frequency and avoid spurious interferes.

摘要翻译： 同时作为无线电无线电操作并监测本地频谱的装置和方法。 例如，这里描述的是使用辅助接收机来监视工作频带内的频率并防止或避免干扰源（包括特别是半中频干扰源）的无线无线电设备。 本文描述的系统，设备和方法可以调整超外差接收机中的中频，以选择使干扰最小化的中频。 特别地，这里描述的是使用独立于第一接收机的第二接收机并且可以连接到相同的接收天线以监测地理上本地频谱并且可以检测伪干扰源的装置和方法，允许主接收机调整 中频，避免杂散干扰。

公开(公告)号：US09100055B2

公开(公告)日：2015-08-04

申请号：US12628113

申请日：2009-11-30

申请人： Philip J. Harris

发明人： Philip J. Harris

IPC分类号： H04B1/00

CPC分类号： H04B1/0007 ,  H04B1/0075 ,  H04B7/18506

摘要： A radio apparatus comprising: a radio frequency processing module for converting radio frequency signals from an antenna to intermediate frequency signals; an intermediate frequency processing module located remotely from the radio frequency processing module, for receiving intermediate frequency signals and processing said signals according to at least one communications protocol; and a digital data link for connecting the radio frequency processing module and the intermediate frequency processing module, for transfer of the intermediate frequency signals.

摘要翻译： 一种无线电设备，包括：射频处理模块，用于将来自天线的射频信号转换成中频信号; 位于远离射频处理模块的中频处理模块，用于接收中频信号并根据至少一个通信协议处理所述信号; 以及用于连接射频处理模块和中频处理模块的数字数据链路，用于中频信号的传送。

公开(公告)号：US08582693B2

公开(公告)日：2013-11-12

申请号：US13309908

申请日：2011-12-02

申请人： Chun-Geik Tan ,  Wei-Min Shu ,  Chi-Hsueh Wang

发明人： Chun-Geik Tan ,  Wei-Min Shu ,  Chi-Hsueh Wang

IPC分类号： H04L27/00 ,  G01S1/00 ,  G01S19/00 ,  G01S19/33 ,  G01S19/01

CPC分类号： H04B1/0075

摘要： Wireless receiver for receiving a plurality of co-existing wireless signals respectively from different positioning systems, includes an analog frontend and an analog-to-digital converting unit. The analog frontend is arranged to convert bands of the co-existing wireless signals into a plurality of corresponding intermediate bands by a local frequency and to provide an intermediate signal including the intermediate bands. The analog-to-digital converting unit is coupled to the analog frontend, and is arranged to convert the intermediate signal to a digital signal, wherein an operation band of the analog-to-digital converting unit covers the plurality of intermediate bands.

摘要翻译： 分别从不同的定位系统接收多个共存的无线信号的无线接收机包括模拟前端和模数转换单元。 模拟前端被布置为通过本地频率将共存的无线信号的频带转换成多个对应的中间频带，并提供包括中间频带的中间信号。 模数转换单元耦合到模拟前端，并且被布置为将中间信号转换为数字信号，其中模数转换单元的工作频带覆盖多个中间频带。

公开(公告)号：US08576768B2

公开(公告)日：2013-11-05

申请号：US12425285

申请日：2009-04-16

申请人： Liang Zhao ,  Roger Brockenbrough ,  Michael Kohlmann ,  Cormac S. Conroy ,  Anup Savla

发明人： Liang Zhao ,  Roger Brockenbrough ,  Michael Kohlmann ,  Cormac S. Conroy ,  Anup Savla

IPC分类号： H04B7/185 ,  H04B1/40

CPC分类号： H04B1/0075 ,  H04B1/0007 ,  H04B1/005 ,  H04B1/0064

摘要： The subject matter disclosed herein relates to a system and method for processing wireless signals received from one or more communications systems. In a particular implementation, one or more signals received from one or more communication systems such as a GNSS may be processed in two or more separate wireless signal receiver paths and combined in baseband to share one analog-to-digital converter.

摘要翻译： 本文公开的主题涉及用于处理从一个或多个通信系统接收的无线信号的系统和方法。 在特定实现中，从一个或多个通信系统（诸如GNSS）接收到的一个或多个信号可以在两个或更多个分离的无线信号接收机路径中进行处理，并在基带中组合以共享一个模 - 数转换器。

公开(公告)号：US20130257544A1

公开(公告)日：2013-10-03

申请号：US13905813

申请日：2013-05-30

申请人： RENESAS ELECTRONICS CORPORATION

发明人： Kumiko Takikawa ,  Satoshi Tanaka ,  Yoshiyasu Tashiro

IPC分类号： H03F3/19

CPC分类号： H01L23/66 ,  H01L23/48 ,  H01L23/4952 ,  H01L23/49541 ,  H01L23/49575 ,  H01L24/06 ,  H01L27/0203 ,  H01L29/41708 ,  H01L2224/04042 ,  H01L2224/05093 ,  H01L2224/05553 ,  H01L2224/05554 ,  H01L2224/05624 ,  H01L2224/06 ,  H01L2224/16225 ,  H01L2224/32225 ,  H01L2224/48247 ,  H01L2224/48465 ,  H01L2224/73204 ,  H01L2924/01004 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01013 ,  H01L2924/01014 ,  H01L2924/01033 ,  H01L2924/01082 ,  H01L2924/014 ,  H01L2924/1305 ,  H01L2924/1306 ,  H01L2924/13091 ,  H01L2924/14 ,  H01L2924/15787 ,  H01L2924/181 ,  H01L2924/30107 ,  H03F3/19 ,  H03F3/68 ,  H03F2200/294 ,  H03F2200/429 ,  H03F2200/451 ,  H04B1/0075 ,  H04W52/52 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2924/00012

摘要： A wireless communication system includes: a filter; and a semiconductor chip including a signal processing integrated circuit having an amplifier, wherein a main surface of the semiconductor chip is provided with a plurality of electrode terminals along an edge portion thereof; wherein the amplifier has a transistor including a control electrode, a first electrode through which a signal is outputted, and a second electrode to which a voltage is applied; wherein the control electrode, the first electrode and the second electrode of the transistor are connected to the electrode terminals, respectively; and wherein none of wirings are arranged between the electrode terminals and placements of the control electrode, the first electrode and the second electrode, making space between the electrodes and the electrode terminals narrow.

公开(公告)号：US08548410B2

公开(公告)日：2013-10-01

申请号：US13307743

申请日：2011-11-30

申请人： Jarkko Jussila ,  Pete Sivonen

发明人： Jarkko Jussila ,  Pete Sivonen

IPC分类号： H04B1/18

CPC分类号： H04B1/0075 ,  H04L5/001 ,  H04L27/2647

摘要： The method and apparatus described herein address problems associated with conventional wireless receivers configured for intra-band carrier aggregation. The disclosed solution applies the received signal to a single front-end amplifier, which may comprise a low-noise amplifier, and divides the amplified signal into two or more processing paths, where each path is associated with a different local oscillator frequency corresponding to a different reception band. To compensate for the impact of the additional processing paths on the amplifier performance, a negative resistor unit applies a negative resistance to the output of the front-end amplifier when two or more processing paths are active.

摘要翻译： 本文描述的方法和装置解决了配置用于带内载波聚合的常规无线接收机相关的问题。 所公开的解决方案将接收到的信号应用于单个前置放大器，其可以包括低噪声放大器，并将放大的信号划分成两个或更多个处理路径，其中每个路径与对应于 不同的接收频段。 为了补偿附加处理路径对放大器性能的影响，当两个或多个处理路径有效时，负电阻器单元向前端放大器的输出端施加负电阻。

公开(公告)号：US20130252567A1

公开(公告)日：2013-09-26

申请号：US13871882

申请日：2013-04-26

申请人： Robert J. PERA ,  Lance D. LASCARI

发明人： Robert J. PERA ,  Lance D. LASCARI

IPC分类号： H04W84/12

CPC分类号： H04W84/12 ,  H04B1/0075 ,  H04B1/1036 ,  H04B1/28 ,  H04B2001/1054 ,  H04W72/02

摘要： The present invention offers significant improvements in the performance of a radio receiver operating in an environment with high desired band interference. The present invention comprises a high selectivity RF circuit that is located between the antenna and the radio receiver, and utilizes superheterodyne technology to filter adjacent channel interference in the desired band frequency spectrum. This type of interference is problematic for IEEE 802.11 radio receivers that are implemented with the popular direct conversion radio receiver architectures. The present invention may be utilized in many types of radio receivers.

摘要翻译： 本发明提供了在具有高期望频带干扰的环境中操作的无线电接收机的性能方面的显着改进。 本发明包括位于天线和无线电接收机之间的高选择性RF电路，并且利用超外差技术来过滤所需频带频谱中的相邻信道干扰。 这种类型的干扰对于使用流行的直接转换无线电接收机架构来实现的IEEE 802.11无线电接收机是有问题的。 本发明可以用于许多类型的无线电接收机。

公开(公告)号：US08467759B2

公开(公告)日：2013-06-18

申请号：US13448610

申请日：2012-04-17

申请人： Robert J. Pera ,  Lance D. Lascari

发明人： Robert J. Pera ,  Lance D. Lascari

IPC分类号： H04B1/10 ,  H04B7/00

CPC分类号： H04W84/12 ,  H04B1/0075 ,  H04B1/1036 ,  H04B1/28 ,  H04B2001/1054 ,  H04W72/02

摘要： The present invention offers significant improvements in the performance of a radio receiver operating in an environment with high desired band interference. The present invention comprises a high selectivity RF circuit that is located between the antenna and the radio receiver, and utilizes superheterodyne technology to filter adjacent channel interference in the desired band frequency spectrum. This type of interference is problematic for IEEE 802.11 radio receivers that are implemented with the popular direct conversion radio receiver architectures. The present invention may be utilized in many types of radio receivers.

摘要翻译： 本发明提供了在具有高期望频带干扰的环境中操作的无线电接收机的性能方面的显着改进。 本发明包括位于天线和无线电接收机之间的高选择性RF电路，并且利用超外差技术来过滤所需频带频谱中的相邻信道干扰。 这种类型的干扰对于使用流行的直接转换无线电接收机架构来实现的IEEE 802.11无线电接收机是有问题的。 本发明可以用于许多类型的无线电接收机。