专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明申请

WO2014035519A1 APPARATUS AND METHOD FOR IMPROVING OFDM RECEIVER PERFORMANCE IN THE PRESENCE OF NARROWBAND INTERFERERS 审中-公开
标题翻译：用于改善窄带干扰器存在的OFDM接收机性能的装置和方法
公开(公告)号：WO2014035519A1
公开(公告)日：2014-03-06
申请号：PCT/US2013/044701
申请日：2013-06-07
申请人： INTEL CORPORATION
发明人： ARAMBEPOLA, Bernard , HEWAVITHANA, Thushara
IPC分类号： H04L27/26 , H04B1/10
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。

22. 发明申请

WO2022139844A1 RADAR APPARATUS, SYSTEM, AND METHOD 审中-公开
公开(公告)号：WO2022139844A1
公开(公告)日：2022-06-30
申请号：PCT/US2020/066997
申请日：2020-12-24
申请人： INTEL CORPORATION
发明人： TEPLITSKY, Moshe , HADAD, Ran , COHEN, Alon , SHALITA, Oren , XU, Shengbo , SICRON, Merav , SHABTAY, Ophir , OHEV ZION, Dan , MAOR, Lior , MARKISH, Ofer , HEWAVITHANA, Thushara , GOLDGRABER CASSPI, Solomon , BAREL, Hagay , AMADJIKPE, Arnaud
IPC分类号： G01S7/40 , G01S7/02 , G01S7/288 , G01S13/931 , H01Q21/06 , G01S13/02
摘要： Some demonstrative aspects include radar apparatuses, devices, systems and methods. In one example, an apparatus may include a plurality of Transmit (Tx) antennas to transmit radar Tx signals, and a plurality of Receive (Rx) antennas to receive radar Rx signals. For example, the radar Rx signals may be based on the radar Tx signals. The apparatus may be implemented, for example, as part of a radar device, for example, as part of a vehicle including the radar device. In other aspects, the apparatus may include any other additional or alternative elements and/or may be implemented as part of any other device.

23. 发明申请

WO2020176587A1 COPPER BACKHAUL FOR HYBRID FIBER COAXIAL NETWORKS 审中-公开
公开(公告)号：WO2020176587A1
公开(公告)日：2020-09-03
申请号：PCT/US2020/019838
申请日：2020-02-26
申请人： INTEL CORPORATION
发明人： STROBEL, Rainer , HEWAVITHANA, Thushara
IPC分类号： H04L12/28
摘要： An active cable node circuit associated with a hybrid fiber coax network is disclosed. The active cable node circuit comprises an uplink transceiver circuit configured to couple to an aggregation node circuit over a first coax cable link comprising coaxial cables and receive a set of downstream data signals from the aggregation node circuit. In some embodiments, the active cable node circuit further comprises one or more access transceiver circuits configured to provide the set of downstream data signals received at the uplink transceiver circuit or a processed version thereof, to one or more access circuits. In some embodiments, each of the one or more access transceiver circuits is configured to couple to the uplink transceiver circuit at a first end, and couple to a set of access circuits of the one or more access circuits at a second, different end, over a second coax cable link.

24. 发明申请

WO2019236228A2 METHOD AND APPARATUS FOR CONTROLLING A GAIN OF AN AMPLIFIER OF A CABLE MODEM 审中-公开
公开(公告)号：WO2019236228A2
公开(公告)日：2019-12-12
申请号：PCT/US2019/030806
申请日：2019-05-06
申请人： INTEL CORPORATION
发明人： BSCHOR, Walter , HEWAVITHANA, Thushara , KOL, Boaz
IPC分类号： H04B10/079
摘要： A method and apparatus for controlling a gain of an amplifier of a cable modem operating in a full duplex (FDX) mode. A cable modem includes an amplifier configured to amplify a received signal, a power meter configured to measure a power of the received signal on a plurality of channels, and a control unit configured to estimate a maximum expected power to receive on the plurality of channels based on the measured power and set a gain of the amplifier based on the maximum expected power. The cable modem is configured to operate in a full duplex mode. The channels include a full duplex upstream channel, a full duplex downstream channel, and a legacy downstream channel. The maximum expected power may be estimated via a sounding procedure. A power spectral density may be measured and the maximum expected power may be derived from the power spectral density.

25. 发明申请

WO2014105132A1 SYSTEMS AND METHODS FOR IMPLEMENTING SOFT-DECISION REED-SOLOMON DECODING TO IMPROVE CABLE MODEM AND CABLE GATEWAY PERFORMANCE 审中-公开
标题翻译：实施软决策解决方案改进电缆调制解调器和电缆网关性能的系统和方法
公开(公告)号：WO2014105132A1
公开(公告)日：2014-07-03
申请号：PCT/US2013/046306
申请日：2013-06-18
申请人： INTEL CORPORATION , ARAMBEPOLA, Bernard , BADEM, Murat , SHUKLA, Parveen K. , GAMAGE, Sahan , HEWAVITHANA, Thushara , GOLDMAN, Naor
发明人： ARAMBEPOLA, Bernard , BADEM, Murat , SHUKLA, Parveen K. , GAMAGE, Sahan , HEWAVITHANA, Thushara , GOLDMAN, Naor
IPC分类号： H03M13/00 , H04L27/34
CPC分类号： H04L27/06 , H03M13/1515 , H03M13/451 , H03M13/453 , H04L1/0045 , H04L1/0047 , H04L1/0057 , H04L27/38
摘要： A system and method are provided for implementing a soft Reed-Solomon (RS) decoding scheme, technique or algorithm to improve physical layer performance in cable modems and cable gateways. At 1024-QAM, a receiver is provided in which a signal to noise ratio is reduced by at least about 1 dB relaxing design considerations and specifications for other components in the system including for the tuner. A soft-RS-symbol generation scheme is provided to enable soft-input RC decoding in a forward error correction (FEC) module connected to a QAM demodulator. The RS decoding scheme is implemented without significantly complicating hardware or processing overhead. A typical receiver hardware requirement in an FEC module to implement the disclosed scheme may be comparatively modest, e.g., on an order of approximately 50K gates.
摘要翻译：提供了一种用于实现软的里德 - 所罗门（RS）解码方案，技术或算法以改善电缆调制解调器和电缆网关中的物理层性能的系统和方法。在1024-QAM中，提供了一种接收机，其中信噪比降低了包括用于调谐器的系统中其他部件的至少约1dB的松弛设计考虑和规格。提供软RS符号生成方案以在连接到QAM解调器的前向纠错（FEC）模块中实现软输入RC解码。实现RS解码方案，而不会使硬件或处理开销显着复杂化。用于实现所公开的方案的FEC模块中的典型接收机硬件要求可以是相对适中的，例如大约50K门的量级。

26. 发明申请

WO2013095353A1 AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEX (OFDM) RECEIVER WITH PHASE NOISE MITIGATION AND REDUCED LATENCY 审中-公开
标题翻译：具有相位噪声缓解和减少延迟的正交频分多址（OFDM）接收机
公开(公告)号：WO2013095353A1
公开(公告)日：2013-06-27
申请号：PCT/US2011/065978
申请日：2011-12-20
申请人： INTEL CORPORATION , ARAMBEPOLA, Bernard , HEWAVITHANA, Thushara , SHUKLA, Parveen K. , GAMAGE, Sahan S.
发明人： ARAMBEPOLA, Bernard , HEWAVITHANA, Thushara , SHUKLA, Parveen K. , GAMAGE, Sahan S.
IPC分类号： H04L27/26 , H04B15/00
CPC分类号： H04L27/2649 , H04L1/0036 , H04L27/265 , H04L27/2657 , H04L27/2675
摘要： A system according to one embodiment includes a demodulator configured to receive an orthogonal frequency division multiplexed (OFDM) modulated signal comprising a current symbol and a sequence of previous symbols, each of the symbols comprising one or more pilot sub-carriers and one or more data sub-carriers; a phase angle computation circuit coupled to the demodulator, the phase angle computation circuit configured to compute a first mean, the first mean computed from the phase angle of one or more of the pilot sub-carriers of a predetermined number of the previous symbols; a predictive filter circuit coupled to the phase angle computation circuit, the predictive filter circuit configured to compute a second mean, the second mean estimating the phase angle of one or more sub-carriers of the current symbol, the estimation based on the first mean; and a phase noise cancelling circuit coupled to the predictive filter circuit, the phase noise cancelling circuit configured to correct the phase of one or more sub-carriers of the current symbol based on the second mean.
摘要翻译：根据一个实施例的系统包括解调器，其被配置为接收包括当前符号和先前符号序列的正交频分复用（OFDM）调制信号，每个符号包括一个或多个导频子载波和一个或多个数据子载波; 耦合到所述解调器的相位角计算电路，所述相位角计算电路被配置为计算第一平均值，所述第一平均值是从预定数量的先前符号的一个或多个导频子载波的相位角计算的第一平均值; 耦合到所述相位角计算电路的预测滤波器电路，所述预测滤波器电路被配置为计算第二平均值，所述第二平均值估计所述当前符号的一个或多个子载波的相位角，所述估计基于所述第一均值; 以及耦合到所述预测滤波器电路的相位噪声消除电路，所述相位噪声消除电路被配置为基于所述第二均值来校正所述当前符号的一个或多个子载波的相位。

27. 发明申请

WO2012027303A2 CHANNEL-ADAPTIVE LIKELIHOOD DETERMINATION 审中-公开
标题翻译：频道自适应确定
公开(公告)号：WO2012027303A2
公开(公告)日：2012-03-01
申请号：PCT/US2011/048699
申请日：2011-08-22
申请人： INTEL CORPORATION , GAMAGE, Sahan S. , ARAMBEPOLA, Bernard , HEWAVITHANA, Thushara , SHUKLA, Parveen K. , BHUNJUN, Vinesh
发明人： GAMAGE, Sahan S. , ARAMBEPOLA, Bernard , HEWAVITHANA, Thushara , SHUKLA, Parveen K. , BHUNJUN, Vinesh
IPC分类号： H04L27/26
CPC分类号： H04L25/067
摘要： Methods and systems to compute likelihood measures of demodulated, complex-coordinate data points, to and dynamically scale the likelihood measures as a function of a channel statistic, and to decode the data points from the scaled likelihood measures. Likelihood measures may be computed relative to all points, or a subset of points of a reference constellation, such as a subset of one or more nearest constellation points. Likelihood measures may be scaled as a function of a channel frequency response variance amongst a plurality of carriers, such as carriers of an OFDM signal, and/or as a function of a channel impulse response variance.
摘要翻译：用于计算解调的复坐标数据点的似然度量的方法和系统，并将似然度量动态地缩放为通道统计量的函数，并且从经比例缩放的似然度量来解码数据点。可以相对于所有点或参考星座的点的子集（诸如一个或多个最近星座点的子集）计算似然度量。似然度量可以被缩放为多个载波之类的信道频率响应方差的函数，诸如OFDM信号的载波，和/或作为信道脉冲响应方差的函数。

28. 发明申请

WO2012027061A2 METHODS AND SYSTEMS TO RESOLVE CYCLIC AMBIGUITY OF A CHANNEL IMPULSE RESPONSE 审中-公开
标题翻译：用于解决信道脉冲响应的循环模糊的方法和系统
公开(公告)号：WO2012027061A2
公开(公告)日：2012-03-01
申请号：PCT/US2011/045775
申请日：2011-07-28
申请人： INTEL CORPORATION , HEWAVITHANA, Thushara , ARAMBEPOLA, Bernard , SHUKLA, Parveen K. , GAMAGE, Sahan S. , BHUNJUN, Vinesh
发明人： HEWAVITHANA, Thushara , ARAMBEPOLA, Bernard , SHUKLA, Parveen K. , GAMAGE, Sahan S. , BHUNJUN, Vinesh
IPC分类号： H04L27/26
CPC分类号： H04L25/022 , H04L25/0212 , H04L25/0228 , H04L27/2647
摘要： Methods and systems to resolve cyclic ambiguity of a scattered-pilot based channel impulse response as a function of transmission parameter signalling (TPS), such as in a single frequency network, including to zero-pad a first orientation of the channel impulse response to an interval of an effective symbol duration of the multi-carrier signal, compute a channel frequency response from the zero-padded first orientation of the channel impulse response, and correlate components of the channel frequency response corresponding to frequencies of TPS carriers with raw channel frequency response data of obtained from the TPS carriers. Frequency response components of multiple zero-padded orientations of the channel impulse response may be correlated with the raw TPS carrier data to identify an optimum orientation of the channel impulse response. Frequency response components of subsequent zero-padded orientations may be iteratively computed from components of preceding orientations.
摘要翻译：用于解决作为传输参数信令（TPS）的函数的基于分散导频的信道脉冲响应的循环模糊度的方法和系统，诸如在单频网络中，包括将第一将信道脉冲响应的方向定位到多载波信号的有效符号持续时间的间隔，从信道脉冲响应的零填充的第一方位计算信道频率响应，并将信道频率响应的分量与频率相对应 TPS载波的原始信道频率响应数据从TPS载波中获得。信道脉冲响应的多个零填充方位的频率响应分量可以与原始TPS载波数据相关以识别信道脉冲响应的最佳方位。随后的零填充方位的频率响应分量可以从先前方位的分量迭代计算。

29. 发明公开

EP4454222A1 COMMUNICATION DEVICE AND METHOD FOR PERFORMING COMMUNICATION SIGNAL PROCESSING 审中-实审
公开(公告)号：EP4454222A1
公开(公告)日：2024-10-30
申请号：EP21969211.8
申请日：2021-12-22
申请人： INTEL Corporation
发明人： CHOI, Yang-Seok , SCHRECK, Jan , TALWAR, Shilpa , QURESHI, Tariq , DHAKAL, Sagar , TETZLAFF, Thomas , HEWAVITHANA, Thushara
IPC分类号： H04L25/02 , G06N3/08
CPC分类号： H04L25/0254 , H04L25/021 , H04L25/025 , G06N3/044 , G06N3/084 , G06N3/088 , G06N3/045

30. 发明公开

EP4445255A1 METHODOLOGY FOR VRAN POWER SAVINGS BASED ON PROJECTED COMPUTATION LOAD 审中-实审
公开(公告)号：EP4445255A1
公开(公告)日：2024-10-16
申请号：EP21966726.8
申请日：2021-12-09
申请人： INTEL Corporation
发明人： SUBRAMANIAN, Sumesh , HEWAVITHANA, Thushara , LIU, Chengyu
IPC分类号： G06F9/50
CPC分类号： Y02D10/00 , G06F9/5094

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式