公开(公告)号：US20160191089A1

公开(公告)日：2016-06-30

申请号：US14909645

申请日：2013-08-06

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Li Poh CHEN ,  Choong Foo BOON ,  Hun Weng KHOO ,  Wai Kean THAM ,  Yew Leong WONG ,  Wei-Gang HU

IPC: H04B1/10 ,  H04W72/04

CPC classification number: H04B1/109 ,  H04B1/1036 ,  H04W72/0406

Abstract: A very-low intermediate frequency (VLIF) receiver and a method of controlling a VLIF receiver. The method comprises receiving a first signal, the first signal including a first adjacent channel interferer, and detecting first interference from the first adjacent channel interferer. The method further comprises, subsequent to receiving the first signal, receiving a second signal, the second signal including a second adjacent channel interferer, and detecting second interference from the second adjacent channel interferer. Furthermore, subsequent to detecting the second interference, the VLIF receiver is configured to avoid the first interference while receiving a third signal.

Abstract translation: 一种非常低的中频（VLIF）接收机和一种控制VLIF接收机的方法。 所述方法包括：接收第一信号，所述第一信号包括第一相邻信道干扰信号，以及检测来自所述第一相邻信道干扰信号的第一干扰。 所述方法还包括：在接收到所述第一信号之后，接收第二信号，所述第二信号包括第二相邻信道干扰源，以及检测来自所述第二相邻信道干扰源的第二干扰。 此外，在检测到第二干扰之后，VLIF接收机被配置为在接收第三信号的同时避免第一干扰。

公开(公告)号：US09379747B2

公开(公告)日：2016-06-28

申请号：US14820395

申请日：2015-08-06

Applicant: Spreadtrum Communications USA Inc.

Inventor： David Haub ,  Zhigang Xu ,  Jarrett Malone

IPC: H04B17/00 ,  H04B1/10 ,  H04B1/12 ,  H04B17/318 ,  H04B17/24

CPC classification number: H04B1/10 ,  H04B1/1036 ,  H04B1/123 ,  H04B17/24 ,  H04B17/318

Abstract: Embodiments include a novel receiver architecture to optimize receiver performance in the presence of interference. In various embodiments, the presence of interference is detected, and the relative frequency location of the interference is detected. The relative frequency location specifies whether the frequency of the interference is high side (above the desired signal, i.e., at a higher frequency) or low side (below the desired signal). The receiver is configured based on the detected interference and relative location thereof. For a device such as a cellular phone that operates in a dynamic and changing environment where interference is variable, embodiments advantageously provide the capability to modify the receiver's operational state depending on the interference.

公开(公告)号：US20160181982A1

公开(公告)日：2016-06-23

申请号：US14580674

申请日：2014-12-23

Applicant: M/A-COM Technology Solutions Holdings, Inc.

Inventor： Simon J. Mahon ,  James T. Harvey ,  Emmanuelle R.O. Convert

IPC: H03D7/16 ,  H04B1/06

CPC classification number: H04B1/126 ,  H03D7/16 ,  H04B1/06 ,  H04B1/1036 ,  H04B1/26 ,  H04B2001/1072

Abstract: An apparatus includes a first receiver and a second receiver. The first receiver may be configured to generate a plurality of first intermediate frequency signals in response to a radio frequency (RF) input signal and a first local oscillator signal. The second receiver may be configured to generate a plurality of output signals in response to the first intermediate frequency signals. Each of the output signals is generated in an independent channel in response to a respective one of the first intermediate frequency signals and a respective second local oscillator signal.

Abstract translation: 一种装置包括第一接收机和第二接收机。 第一接收机可以被配置为响应于射频（RF）输入信号和第一本地振荡器信号而产生多个第一中频信号。 第二接收机可以被配置为响应于第一中频信号而产生多个输出信号。 响应于第一中频信号和相应的第二本地振荡器信号中的相应一个，输出信号中的每一个在独立信道中产生。

公开(公告)号：US09374116B2

公开(公告)日：2016-06-21

申请号：US14252360

申请日：2014-04-14

Applicant: David K Nienaber

Inventor： David K Nienaber

IPC: H04B1/38 ,  H04L5/16 ,  H04B1/10 ,  H04B1/44 ,  H04B1/00 ,  H04L25/49 ,  H04B1/16 ,  H04L27/14

CPC classification number: H04B1/1036 ,  H04B1/0003 ,  H04B1/0014 ,  H04B1/10 ,  H04B1/109 ,  H04B1/16 ,  H04B1/44 ,  H04L25/4906 ,  H04L27/14

Abstract: A modulated signal is demodulated to obtain a modulation signal. The modulated signal is contained within an input signal. A periodic time segment sequence is defined having a plurality of ordered time segments. Signal values are acquired, from the input signal, during each ordered time segment. Signal values acquired during each ordered time segment are combined with signal values acquired during the same ordered time segment over multiple periods of the periodic time segment sequence. The modulated signal is demodulated by executing mathematical steps on the combined signal values to obtain the modulation signal.

Abstract translation: 调制信号被解调以获得调制信号。 调制信号包含在输入信号内。 定义具有多个有序时间段的周期性时间段序列。 在每个有序时间段期间，从输入信号获取信号值。 在每个有序时间段期间获取的信号值与在周期性时间段序列的多个周期上的相同有序时间段期间获取的信号值组合。 通过对组合的信号值执行数学步骤来解调调制信号以获得调制信号。

公开(公告)号：US20160164557A1

公开(公告)日：2016-06-09

申请号：US14906467

申请日：2013-07-24

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

Inventor： Ming Li ,  Youping Su

IPC: H04B1/10

CPC classification number: H04B1/1036 ,  H04B2001/1063

Abstract: Method and multi carrier receiver for removing interference from a RF-signal. In a multi carrier receiver with a heterodyne receiver structure, the RF-signal is received from a multi carrier transmitting entity. The RF-signal comprises a data part an interference part. The interference part is detected by means of the interference unit, and a frequency and a power level of the interference part is determined. A frequency of a first LO is adjusted, such that an output signal of a first mixer is frequency shifted towards an upper edge or a lower edge of a first IF bandpass filter when the determined power level exceeds a predetermined threshold. By detecting an interference part of an incoming RF-signal and controlling a local oscillator based on the detected interference, an effective and flexible solution is achieved for removing interference from the RF-signal.

Abstract translation: 用于消除RF信号干扰的方法和多载波接收机。 在具有外差接收机结构的多载波接收机中，从多载波发射实体接收RF信号。 RF信号包括数据部分干扰部分。 通过干扰单元检测干扰部分，确定干扰部分的频率和功率电平。 调节第一LO的频率，使得当所确定的功率电平超过预定阈值时，第一混频器的输出信号向第一IF带通滤波器的上边缘或下边缘频移。 通过检测输入RF信号的干扰部分并基于检测到的干扰来控制本地振荡器，实现了用于消除来自RF信号的干扰的有效且灵活的解决方案。

公开(公告)号：US09357426B2

公开(公告)日：2016-05-31

申请号：US14718297

申请日：2015-05-21

Applicant: ISCO International, LLC

Inventor： Amr Abdelmonem

IPC: H04W28/04 ,  H04W24/10 ,  H04W72/04 ,  H04W72/12 ,  H04L5/00 ,  H04W28/02 ,  H04W72/08 ,  H04B1/709 ,  H04B1/7103 ,  H04B15/00 ,  H04W24/08 ,  H04W64/00 ,  H04B17/00 ,  H04W52/04 ,  H04B1/10 ,  H04B1/71 ,  H04B17/26 ,  H04B17/345 ,  H04L12/24 ,  H04W4/02

CPC classification number: H04L5/0073 ,  H04B1/1036 ,  H04B1/709 ,  H04B1/71 ,  H04B1/7103 ,  H04B7/2634 ,  H04B15/00 ,  H04B17/00 ,  H04B17/21 ,  H04B17/26 ,  H04B17/327 ,  H04B17/345 ,  H04B17/373 ,  H04B2201/709709 ,  H04B2201/709745 ,  H04J11/0066 ,  H04L5/0007 ,  H04L5/0026 ,  H04L5/0032 ,  H04L5/006 ,  H04L41/069 ,  H04W4/02 ,  H04W4/023 ,  H04W16/28 ,  H04W24/02 ,  H04W24/08 ,  H04W24/10 ,  H04W28/0236 ,  H04W28/04 ,  H04W40/16 ,  H04W52/04 ,  H04W52/14 ,  H04W52/243 ,  H04W64/00 ,  H04W64/006 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/0486 ,  H04W72/082 ,  H04W72/085 ,  H04W72/1226 ,  H04W72/1231

Abstract: A system that incorporates the subject disclosure may perform, for example, a method that determines at least one threshold for detecting signal interference in a first plurality of segments occurring in a first radio frequency spectrum of a first wireless communication system, detecting a pattern of recurrence over time of signal interference in a segment of the first plurality of resource blocks according to the at least one threshold, and performing one or more mitigation steps to mitigate the signal interference without filtering the signal interference where the one or more mitigation steps include at least one of transmitting signals out of phase from the signal interference, adjusting transmit power, increasing power in a resource block of a long term evolution communication session, performing beam steering, or changing time parameters for the resource block without changing to a new resource block. Other embodiments are disclosed.

公开(公告)号：US09350414B2

公开(公告)日：2016-05-24

申请号：US14370947

申请日：2013-10-28

Applicant: Topcon Positioning Systems, Inc.

Inventor： Andrey V. Veitsel ,  Victor A. Prasolov ,  Dmitry D. Murzinov

IPC: H04B1/00 ,  H04B1/71 ,  H04B1/10

CPC classification number: H04B1/1036 ,  H04B1/10 ,  H04B1/109 ,  H04B1/7101 ,  H04B2001/1063 ,  H04B2201/709709

Abstract: A digital filter for narrowband interference rejection, including modules of narrowband interference rejection connected in series, each of which includes the following elements connected in series: a block of successive vector rotation based on the CORDIC vector rotation algorithm for integers, a block of reduction of the length of the rotated vector to maintain the same number of bits for digital signal representation, a block of high-pass filters for orthogonal components of the reduced vector in order to remove the interference from zero frequency region. The filter can be implemented without multiplication.

公开(公告)号：US20160134315A1

公开(公告)日：2016-05-12

申请号：US14937821

申请日：2015-11-10

Applicant: Marvell World Trade Ltd.

Inventor： Brian T. BRUNN ,  Rangakrishnan SRINIVASAN ,  Gregory T. UEHARA ,  Marc LEROUX ,  Zhiguo WANG ,  Jari Juhani VAHE ,  Rohit MAINKAR

IPC: H04B1/10 ,  H04B1/12

CPC classification number: H04B1/1036 ,  H04B1/123 ,  H04B15/06

Abstract: A circuit comprises a vector separator circuit to generate a first extracted signal according to (i) a first correlation signal, (ii) a second correlation signal, and (iii) a relative response signal. The first correlation signal corresponds to a first correlation between an input signal and a first test signal. The first test signal has a first frequency, and the input signal includes a first spur having the first frequency. The second correlation signal corresponds to a second correlation between the input signal and a second test signal. The second test signal has a second frequency. The relative response signal corresponds to a relative response of the second frequency in the first correlation signal.

Abstract translation: 电路包括根据（i）第一相关信号，（ii）第二相关信号和（iii）相对响应信号产生第一提取信号的矢量分离器电路。 第一相关信号对应于输入信号和第一测试信号之间的第一相关。 第一测试信号具有第一频率，并且输入信号包括具有第一频率的第一支路。 第二相关信号对应于输入信号和第二测试信号之间的第二相关。 第二测试信号具有第二频率。 相对响应信号对应于第一相关信号中的第二频率的相对响应。

公开(公告)号：US20160127087A1

公开(公告)日：2016-05-05

申请号：US14968895

申请日：2015-12-15

Applicant: Kamilo Feher

Inventor： Kamilo Feher

IPC: H04L5/00 ,  H04W64/00 ,  H04L27/20 ,  H04L27/26 ,  H04W12/06 ,  H04B1/707

CPC classification number: H04L27/2602 ,  A61B5/0015 ,  A61B5/0022 ,  A61B5/01 ,  A61B5/024 ,  A61B5/14532 ,  G06F19/00 ,  G16H10/60 ,  G16H15/00 ,  H04B1/1036 ,  H04B1/69 ,  H04B1/707 ,  H04B1/709 ,  H04B7/04 ,  H04B7/18504 ,  H04B7/2628 ,  H04B2201/70715 ,  H04B2201/70716 ,  H04J11/00 ,  H04L1/0003 ,  H04L5/0007 ,  H04L5/1453 ,  H04L27/2017 ,  H04L27/2071 ,  H04L27/2627 ,  H04L27/2649 ,  H04M7/006 ,  H04W4/023 ,  H04W4/025 ,  H04W4/90 ,  H04W12/06 ,  H04W64/00 ,  H04W88/02 ,  H04W88/06 ,  Y02A90/26

Abstract: Multimode multimedia mobile wireless data communication system provides received demodulated location finder signal with a mobile device generated photo camera generated signal into a cross-correlated in-phase and quadrature-phase filtered baseband signal and modulates and transmits the cross-correlated signal. Mobile device for receiving and converting a video signal, generated in mobile device, into an OFDM video signal and providing OFDM video signal to a modulator and transmitter. Mobile device receives and demodulates a modulated spread spectrum baseband signal and provides the spread spectrum baseband signal to an OFDM baseband unit for modulation and transmission of OFDM baseband signal. Converting a user generated touch screen signal into a touch screen control signal, for control of mobile device.

Abstract translation: 多模多媒体移动无线数据通信系统将接收到的解调位置取景器信号与移动设备产生的照相机产生的信号提供到交相关的同相和正交相位滤波的基带信号中，并且调制和发送交叉相关信号。 用于在移动设备中生成的视频信号接收和转换成OFDM视频信号并向调制器和发射机提供OFDM视频信号的移动设备。 移动设备接收和解调调制扩频基带信号，并将扩频基带信号提供给OFDM基带单元，用于OFDM基带信号的调制和传输。 将用户生成的触摸屏信号转换为触摸屏控制信号，用于控制移动设备。

公开(公告)号：US20160126989A1

公开(公告)日：2016-05-05

申请号：US14875912

申请日：2015-10-06

Applicant: ZIH Corp.

Inventor： Edward A. Richley

IPC: H04B1/10 ,  H04B1/719 ,  H04B1/7163

CPC classification number: H04B1/1036 ,  A41D1/002 ,  A41D1/005 ,  A41D1/04 ,  A41D2600/10 ,  A42B3/30 ,  A63B24/00 ,  A63B24/0021 ,  A63B24/0062 ,  A63B71/06 ,  A63B71/0619 ,  A63B71/0622 ,  A63B71/0686 ,  A63B2024/0025 ,  A63B2024/0028 ,  A63B2024/0056 ,  A63B2220/12 ,  A63B2220/40 ,  A63B2220/836 ,  A63B2225/50 ,  A63B2225/54 ,  G05B15/02 ,  G06F17/30864 ,  G06F17/3087 ,  G06F17/30876 ,  G06F17/30879 ,  G06F19/00 ,  G06K7/10227 ,  G06K7/10297 ,  G06K7/10306 ,  G06K7/10366 ,  G06K9/00342 ,  G06K2017/0045 ,  G06N5/02 ,  G06N7/005 ,  G06Q50/20 ,  G06Q50/22 ,  G06Q90/00 ,  G08C17/02 ,  G09B19/0038 ,  G16H50/30 ,  G16H50/50 ,  H04B1/7097 ,  H04B1/71635 ,  H04B1/71637 ,  H04B1/719 ,  H04L43/04 ,  H04L67/12 ,  H04Q9/00 ,  H04W4/02

Abstract: Systems, methods, apparatuses, and computer readable media are disclosed for providing interference rejection in ultra-wideband real time locating systems. In one embodiment, an ultra-wideband (UWB) receiver is configured to: receive an interference signal from a source positioned outside a monitored region; receive a composite signal transmitted from a tagged object moving about a playing field within the monitored region, wherein the composite signal comprises a location signal and a component of the interference signal; detect whether the component of the interference signal exceeds a threshold value; and adjust, via a processor, filtering of the composite signal to attenuate the component of the interference signal based on whether the component of the interference signal exceeds the threshold value. Some embodiments provide for filtering of the composite signal using a combiner while others employ a tunable notch filter. Corresponding systems, methods, and computer-readable storage medium are also provided.

Abstract translation: 公开了用于在超宽带实时定位系统中提供干扰抑制的系统，方法，装置和计算机可读介质。 在一个实施例中，超宽带（UWB）接收机被配置为：从位于监视区域外部的源接收干扰信号; 接收从被监视区域内围绕游戏场移动的被标记对象发送的复合信号，其中所述复合信号包括所述干扰信号的位置信号和分量; 检测干扰信号的分量是否超过阈值; 并且经由处理器调整所述复合信号的滤波，以基于所述干扰信号的分量是否超过所述阈值来衰减所述干扰信号的分量。 一些实施例提供了使用组合器对复合信号进行滤波，而其他实施例采用可调陷波滤波器。 还提供了相应的系统，方法和计算机可读存储介质。