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1. 发明授权

US10848136B2 Electronic device 有权
公开(公告)号：US10848136B2
公开(公告)日：2020-11-24
申请号：US16748417
申请日：2020-01-21
申请人： SK hynix Inc.
发明人： Jeong-Eun Song
IPC分类号： H03K5/12 , H03K3/353 , H03K4/90 , H03K6/04
CPC分类号： H03K5/12 , H03K3/353 , H03K4/90 , H03K6/04
摘要： Provided is an electronic device including a ramp signal generation circuit configured to generate a ramp signal having a second slope that is greater by a first level than a first slope which corresponds to an analog gain, and a slope correction circuit configured to correct the second slope of the ramp signal by the first level to obtain the first slope.

2. 发明授权

US10158513B2 Apparatus and method for sending and receiving broadcast signals 有权
公开(公告)号：US10158513B2
公开(公告)日：2018-12-18
申请号：US15615663
申请日：2017-06-06
申请人： LG ELECTRONICS INC.
发明人： Jaehyung Kim , Woosuk Ko , Sungryong Hong
IPC分类号： H03D1/04 , H03D1/06 , H03K5/01 , H03K6/04 , H04B1/10 , H04L1/00 , H04L25/08 , H04L27/26 , H04L5/00 , H04L12/18 , H04H20/42 , H04H60/11
摘要： Disclosed herein is a broadcast signal receiver. The broadcast signal receiver according to an embodiment of the present invention includes a synchronization and demodulation module configured to perform detection and OFDM demodulation on a received broadcast signal, a frame parsing and deinterleaving module configured to parse and deinterleave the signal frame of the broadcast signal, a demapping and decoding module configured to convert the data of at least one Physical Layer Pipe (PLP) of the broadcast signal into a bit domain and to FEC-decode the PLP data, and an output processing module configured to receive the data of the at least one PLP and to output the received data in a data stream form.

3. 发明授权

US09705723B2 Apparatus and method for sending and receiving broadcast signals 有权
公开(公告)号：US09705723B2
公开(公告)日：2017-07-11
申请号：US15061458
申请日：2016-03-04
申请人： LG ELECTRONICS INC.
发明人： Jaehyung Kim , Woosuk Ko , Sungryong Hong
IPC分类号： H03D1/04 , H03D1/06 , H03K5/01 , H03K6/04 , H04B1/10 , H04L1/00 , H04L25/08 , H04L27/26 , H04L5/00 , H04L12/18
CPC分类号： H04L27/263 , H03M13/00 , H04H20/42 , H04H60/11 , H04L1/0041 , H04L1/0052 , H04L1/0058 , H04L1/0065 , H04L1/0071 , H04L1/0075 , H04L5/0048 , H04L12/18 , H04L27/2602 , H04L27/2613 , H04L27/265
摘要： Disclosed herein is a broadcast signal receiver. The broadcast signal receiver according to an embodiment of the present invention includes a synchronization and demodulation module configured to perform detection and OFDM demodulation on a received broadcast signal, a frame parsing and deinterleaving module configured to parse and deinterleave the signal frame of the broadcast signal, a demapping and decoding module configured to convert the data of at least one Physical Layer Pipe (PLP) of the broadcast signal into a bit domain and to FEC-decode the PLP data, and an output processing module configured to receive the data of the at least one PLP and to output the received data in a data stream form.

4. 发明授权

US09490933B2 Electronic device and method for removing interferential signals of mobile device 有权
标题翻译：用于去除移动设备的干扰信号的电子设备和方法
公开(公告)号：US09490933B2
公开(公告)日：2016-11-08
申请号：US14262818
申请日：2014-04-28
申请人： ShenZhen Treasure City Technology Co., LTD.
发明人： Shang-Jue Ding
IPC分类号： H03D1/04 , H03D1/06 , H03K5/01 , H03K6/04 , H04B1/10 , H04L1/00 , H04L25/08 , H04L25/03
CPC分类号： H04L1/00 , H04L25/03006
摘要： In a method for removing interferential signals of a mobile device, an original communication signal waveform of the mobile device is acquired. A differential signal waveform corresponding to each signal frame in a group is generated, and a DPPPV of the differential signal waveform is acquired. The differential signal is determined to be an interferential signal, in response to that the DPPPV is not less than a calculated differential threshold value, and a DNPPV at a target time point is not less than a preset ratio of the DPPPV. A signal interference section is determined and compensation values corresponding to the signal interference section is calculated, to generate a differential compensation waveform of the signal frame. An integrated differential compensation waveform of all signal frames and the original communication signal waveform are incorporated to obtain a processed signal waveform without interferential signals.
摘要翻译：在移除移动设备的干扰信号去除方法中，获取移动设备的原始通信信号波形。产生与组中的每个信号帧相对应的差分信号波形，并获取差分信号波形的DPPPV。响应于DPPPV不小于计算的差分阈值，并且目标时间点的DNPPV不小于DPPPV的预设比率，将差分信号确定为干扰信号。确定信号干扰部分，并且计算与信号干扰部分对应的补偿值，以产生信号帧的差分补偿波形。整合所有信号帧和原始通信信号波形的积分差分补偿波形，以获得无干扰信号的处理信号波形。

5. 发明授权

US09413574B1 Systems and methods for DC offset correction 有权
标题翻译：用于直流偏移校正的系统和方法
公开(公告)号：US09413574B1
公开(公告)日：2016-08-09
申请号：US13955330
申请日：2013-07-31
申请人： Marvell International Ltd.
发明人： Sergey Timofeev , Swaroop Venkatesh , Atul Salhotra , Rohit U. Nabar
IPC分类号： H03D1/04 , H03D1/06 , H03K5/01 , H03K6/04 , H04B1/10 , H04L1/00 , H04L25/08 , H04L27/01
CPC分类号： H04L27/01 , H04B1/0007 , H04B1/30 , H04L25/061 , H04L27/2647 , H04L27/2657
摘要： Systems and methods for removing DC offset from a signal are provided. A radio frequency signal is received at a receiver. The radio frequency signal is converted into a digital signal including a periodic component with a period. A carrier frequency offset is removed from the digital signal to generate a frequency-shifted digital signal. The frequency-shifted digital signal is filtered to remove a DC offset in the digital signal. The filtering includes applying a moving average filter matched to the period to remove the periodic component from the frequency-shifted digital signal. The moving average filter generates a set of average values based on the frequency-shifted digital signal. The filtering also includes taking a difference between consecutive values of the set of average values to determine the DC offset, where the DC offset is introduced at the receiver.
摘要翻译：提供了从信号中去除DC偏移的系统和方法。在接收机处接收射频信号。射频信号被转换为包括具有周期的周期分量的数字信号。从数字信号中移除载波频率偏移以产生频移数字信号。对频移数字信号进行滤波以去除数字信号中的直流偏移。滤波包括应用与该周期匹配的移动平均滤波器以从频移数字信号中去除周期性分量。移动平均滤波器基于频移数字信号产生一组平均值。滤波还包括取平均值集合的连续值之间的差值来确定DC偏移，其中在接收器处引入DC偏移。

6. 发明授权

US09385819B2 Terminal device, base station device, communication system, reception method, transmission method, and communication method 有权
标题翻译：终端设备，基站设备，通信系统，接收方法，传输方式和通信方式
公开(公告)号：US09385819B2
公开(公告)日：2016-07-05
申请号：US14769871
申请日：2014-02-25
申请人： Sharp Kabushiki Kaisha
发明人： Takashi Yoshimoto , Kozue Yokomakura , Ryota Yamada , Katsuya Kato , Hiromichi Tomeba
IPC分类号： H03D1/04 , H03D1/06 , H03K5/01 , H03K6/04 , H04B1/10 , H04L1/00 , H04L25/08 , H04B15/00 , H04W8/24 , H04B7/04 , H04W76/02
CPC分类号： H04B15/00 , H04B7/0417 , H04B7/0452 , H04J11/005 , H04W8/24 , H04W76/10
摘要： A terminal device according to an aspect of the present invention includes a reception module that receives a control channel and a spatially multiplexed data signal channel, a control signal detection module that extracts, from an output from the reception module, a demodulation control information which is a transmission parameter of a signal that is transmitted to the terminal device, in a data signal channel that is output from the reception module, and assistance control information which is a transmission parameter of a signal that is transmitted to a different terminal device, in the data signal channel that is output from the reception module, a channel estimator that obtains a channel estimate by using a reference signal, a signal detection module that demultiplexes the data signal channel by using the demodulation control information, the assistance control information, and the channel estimate, and a decoding module that decodes a signal that is output by the signal detection module, in which information indicating a rank is included in the assistance control information.
摘要翻译：根据本发明的一个方面的终端装置包括：接收模块，其接收控制信道和空间复用数据信号信道;控制信号检测模块，其从所述接收模块的输出中提取解调控制信息，所述解调控制信息是在从接收模块输出的数据信道中发送到终端装置的信号的传输参数，以及作为发送到不同终端装置的信号的传输参数的辅助控制信息，在从接收模块输出的数据信号信道，通过使用参考信号获取信道估计的信道估计器，通过使用解调控制信息对辅助控制信息和信道进行解复用的信号检测模块估计，以及解码由信号检测输出的信号的解码模块 n模块，其中指示等级的信息被包括在辅助控制信息中。

7. 发明授权

US09312844B2 Slope compensation module 有权
标题翻译：坡度补偿模块
公开(公告)号：US09312844B2
公开(公告)日：2016-04-12
申请号：US14080151
申请日：2013-11-14
申请人： Microchip Technology Incorporated
发明人： Hartono Darmawaskita , Sean Stacy Steedman , Cristian Nicolae Groza , Marilena Mancioiu , John Robert Charais , Zeke Lundstrum
IPC分类号： H02M3/157 , H03K7/08 , H03K6/04 , H02M3/156 , H03K4/502
CPC分类号： H03K7/08 , H02M3/156 , H03K4/502 , H03K6/04
摘要： A slope compensation module provides slope compensation of a switched-mode power supply using current mode control. The slope control unit comprises a capacitor coupled between an input and an output of the slope control unit, a switch for discharging the capacitor and a constant current source for charging the capacitor. Slope compensation parameters may be changed during operation with a programmable constant current source. The slope compensation module may also function as an analog sawtooth waveform frequency generator, and as an analog pulse width modulation (PWM) generator. Charging the capacitor generates a linearly decreasing (negative slope) ramp voltage for modulating a feedback error voltage into a slope compensated feedback error voltage. Capacitor charging may be controlled from a pulse width modulation signal. Opening of the switch may be programmably delayed, and a minimum closed time thereof may also be programmed during operation of the slope compensation module.
摘要翻译：坡度补偿模块使用电流模式控制提供开关模式电源的斜率补偿。斜坡控制单元包括耦合在斜坡控制单元的输入和输出之间的电容器，用于对电容器放电的开关和用于对电容器充电的恒流源。斜坡补偿参数可能在使用可编程恒流源运行时发生变化。斜坡补偿模块还可以作为模拟锯齿波形频率发生器，并且作为模拟脉宽调制（PWM）发生器。对电容器充电产生线性递减（负斜率）斜坡电压，用于将反馈误差电压调制成斜率补偿反馈误差电压。可以从脉冲宽度调制信号来控制电容充电。可以可编程地延迟开关的打开，并且在斜坡补偿模块的操作期间也可以编程其最小关闭时间。

8. 发明授权

US09106497B2 Apparatus and method for improving OFDM receiver performance in the presence of narrowband interferers 有权
标题翻译：在存在窄带干扰的情况下改善OFDM接收机性能的装置和方法
公开(公告)号：US09106497B2
公开(公告)日：2015-08-11
申请号：US13596993
申请日：2012-08-28
申请人： Bernard Arambepola , Thushara Hewavithana
发明人： Bernard Arambepola , Thushara Hewavithana
IPC分类号： H04L25/08 , H04L1/00 , H04B1/10 , H04L27/26 , H03K6/04 , H03K5/01 , H03D1/06 , H03D1/04
CPC分类号： H04L27/265 , H04L27/2657 , H04L27/2688 , H04L27/2691
摘要： In an Orthogonal Frequency Division Multiplex (“OFDM”) system, the problem of an interferer reducing the signal-to-noise ratio of a signal can be mitigated by generating an interferer-correction signal and subtracting it from the signal to be processed. The amplitude, frequency and phase of the interferences are determined first. The frequency is estimated by averaging the squared-magnitude of multiple FFTs of the incoming signal and then locating the spectral peaks. The phase and amplitude may be estimated from this FFT outputs or through a process of correlation in the time domain. The interferer-correction signal is generated from the estimated amplitude, frequency, and phase. The correction to be subtracted from the main signal in order to reduce the effect of the interference may be generated in the time or frequency domain. The subtraction of the correction may also be implemented in the time or frequency domains.
摘要翻译：在正交频分复用（“OFDM”）系统中，可以通过产生干扰校正信号并从要处理的信号中减去干扰源来减少信号的信噪比的问题。首先确定干扰的幅度，频率和相位。通过对输入信号的多个FFT的平方幅度进行平均，然后定位频谱峰值来估计频率。可以从该FFT输出或通过时域中的相关过程来估计相位和幅度。从估计的幅度，频率和相位产生干扰校正信号。可以在时域或频域中产生要从主信号中减去以减少干扰的影响的校正。校正的减法也可以在时域或频域中实现。

9. 发明授权

US09036749B2 Systems and methods for frequency independent analog self-interference cancellation 有权
标题翻译：用于频率独立模拟自干扰消除的系统和方法
公开(公告)号：US09036749B2
公开(公告)日：2015-05-19
申请号：US14456367
申请日：2014-08-11
申请人： Kumu Networks, Inc.
发明人： Jung-Il Choi , Mayank Jain , Joseph Shalizi , Jeff Mehlman
IPC分类号： H03D1/04 , H03D1/06 , H03K5/01 , H03K6/04 , H04B1/10 , H04B1/12 , H04L5/14 , H04L27/26
CPC分类号： H04B1/12 , H04B1/525 , H04L5/14 , H04L5/143 , H04L5/1461 , H04L27/2691
摘要： A system and method for analog self-interference cancellation that includes receiving an RF transmit signal of a full-duplex radio; frequency downconverting the RF transmit signal to an IF transmit signal; transforming the IF transmit signal into an IF self-interference signal using an IF analog self-interference cancelling circuit; frequency upconverting the IF self-interference signal to an RF self-interference signal; and combining the RF self-interference signal with an RF receive signal of the full-duplex radio.
摘要翻译：一种用于模拟自干扰消除的系统和方法，包括：接收全双工无线电的RF发射信号; 将RF发射信号下变频到IF发射信号; 使用IF模拟自干扰消除电路将IF发射信号变换成IF自干扰信号; 将IF自干扰信号上变频到RF自干扰信号; 以及将RF自干扰信号与全双工无线电的RF接收信号组合。

10. 发明授权

US09008245B1 Optimal symbol detection in the presence of non-gaussian interference 有权
标题翻译：存在非高斯干扰的最佳符号检测
公开(公告)号：US09008245B1
公开(公告)日：2015-04-14
申请号：US13712701
申请日：2012-12-12
申请人： Marvell International Ltd.
发明人： Jungwon Lee
IPC分类号： H03D1/04 , H03D1/06 , H03K5/01 , H03K6/04 , H04B1/10 , H04L1/00 , H04L25/08
CPC分类号： H04B1/10 , H04L25/061 , H04L25/4917 , H04L27/18 , H04L27/2647
摘要： Techniques are provided for detecting a coded signal in the presence of non-Gaussian interference. In an embodiment, a primary transmitter corresponds to a desired transmitter, and one or more secondary transmitters correspond to interfering transmitters. In an embodiment, received symbols, which include non-Gaussian interference and additive noise, are decoded to determine a set of message bits. In an embodiment, an estimate of the set of message bits may be determined using a minimum-distance detector or an optimal-ML detector, for example, depending on the signal-to-noise and/or signal-to-interference ratios at a receiver.
摘要翻译：提供了用于在存在非高斯干扰的情况下检测编码信号的技术。在一个实施例中，主发射机对应于期望的发射机，并且一个或多个次发射机对应于干扰发射机。在一个实施例中，包括非高斯干扰和加性噪声的接收符号被解码以确定一组消息比特。在一个实施例中，可以使用最小距离检测器或最优ML检测器来确定该组消息比特的估计，例如，取决于在一个或多个信号处理中的信噪比和/或信号干扰比接收器。

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