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公开(公告)号：US10075201B1
公开(公告)日：2018-09-11
申请号：US15648205
申请日：2017-07-12
Applicant: Intel IP Corporation
Inventor： Avi Gazneli , Michael Kerner , Itay Almog , Amit Knoll
CPC classification number: H04B1/0475 , H03F1/3247 , H03F1/3258 , H03F3/195 , H03F3/245 , H03F2200/294 , H03F2200/321 , H03F2200/451 , H04B2001/0425
Abstract: An adaptive controller for a nonlinear system includes a Volterra filter having a transfer function defined by P coefficients. The controller includes an alignment/compensation circuit, which aligns the input samples to the output samples of the nonlinear system. The controller generates a P×P matrix using at least one of input samples to, or output samples from the nonlinear system and normalizes each element of the P×P matrix using a respective normalization factor. The controller generates and solves a system of P linear equations from the P×P matrix and a P×1 matrix derived from input and output samples of the nonlinear system using Cholesky decomposition that may include Fast Inverse Square Root operations and forward backward elimination to generate P values. The controller multiplies each of the P values by an inverse of a respective one of the normalization factors to generate the P coefficients for the Volterra filter.
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Patent Agency Ranking
公开(公告)号：US10177719B2
公开(公告)日：2019-01-08
申请号：US15584076
申请日：2017-05-02
Applicant: Intel IP Corporation
Inventor： Avi Gazneli , Michael Kerner , Amir Rubin , Itay Almog , Avi Sulimarski
Abstract: A method for predistorting an input signal of an amplifier device comprises evaluating a selection criterion for a computational model of the amplifier device. The computational model provides an output signal of the amplifier device for the input signal of the amplifier device. Further, the method comprises selecting between a first computational model of the amplifier device and a second computational model of the amplifier device based on the evaluated selection criterion. Additionally, the method comprises predistorting the input signal of the amplifier device using the selected computational model.
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公开(公告)号：US10516562B2
公开(公告)日：2019-12-24
申请号：US15775845
申请日：2015-12-21
Applicant: Intel IP Corporation
Inventor： Itay Almog , Michael Kerner
Abstract: A communication device is provided that includes a modulation circuit configured to modulate a signal comprising a first signal portion of a first data type and a second signal portion of a second data type. The modulation circuit is configured to modulate the first signal portion in accordance with a first modulation scheme and the second signal portion in accordance with a second modulation scheme. At least one of the first data type is different from the second data type or the second modulation scheme is different from the first modulation scheme. The communication device further includes a modification circuit configured to modify the modulated first signal portion based on a first modification scheme and the second signal portion based on a second modification scheme. The communication device further includes a transmitter configured to transmit the modified first signal portion and the modified second signal portion.
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公开(公告)号：US20180331878A1
公开(公告)日：2018-11-15
申请号：US15775845
申请日：2015-12-21
Applicant: Intel IP Corporation
Inventor： Itay Almog , Michael Kerner
Abstract: A communication device is provided that includes a modulation circuit configured to modulate a signal comprising a first signal portion of a first data type and a second signal portion of a second data type. The modulation circuit is configured to modulate the first signal portion in accordance with a first modulation scheme and the second signal portion in accordance with a second modulation scheme. At least one of the first data type is different from the second data type or the second modulation scheme is different from the first modulation scheme. The communication device further includes a modification circuit configured to modify the modulated first signal portion based on a first modification scheme and the second signal portion based on a second modification scheme. The communication device further includes a transmitter configured to transmit the modified first signal portion and the modified second signal portion.
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公开(公告)号：US09935590B2
公开(公告)日：2018-04-03
申请号：US15256718
申请日：2016-09-05
Applicant: Intel IP Corporation
Inventor： Avi Sulimarski , Itay Almog , Michael Kerner
CPC classification number: H03F1/3258 , H03F1/3282 , H03F3/19 , H03F3/21 , H03F3/245 , H03F2200/336 , H03F2200/451 , H03F2201/3224 , H04B1/0475 , H04B2001/0425
Abstract: Techniques for compensating for signal impairments introduced by a mixer are discussed. One example system employing such techniques can include mixer predistortion circuitry configured to receive signal in-phase (I) and signal quadrature (Q) components of a signal and to generate a mixer predistortion signal based at least in part on the signal I and Q components, wherein the mixer predistortion signal compensates for nonlinearities caused by a mixer that upconverts the signal. Optionally, imbalance correction circuitry to compensate for gain and phase imbalance and/or skew correction circuitry to compensate for gain and phase skew can also be included.
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公开(公告)号：US09438178B1
公开(公告)日：2016-09-06
申请号：US14843174
申请日：2015-09-02
Applicant: INTEL IP CORPORATION
Inventor： Avi Sulimarski , Itay Almog , Michael Kerner
CPC classification number: H03F1/3258 , H03F1/3282 , H03F3/19 , H03F3/21 , H03F3/245 , H03F2200/336 , H03F2200/451 , H03F2201/3224 , H04B1/0475 , H04B2001/0425
Abstract: Techniques for compensating for signal impairments introduced by a mixer are discussed. One example system employing such techniques can include mixer predistortion circuitry configured to receive signal in-phase (I) and signal quadrature (Q) components of a signal and to generate a mixer predistortion signal based at least in part on the signal I and Q components, wherein the mixer predistortion signal compensates for nonlinearities caused by a mixer that upconverts the signal. Optionally, imbalance correction circuitry to compensate for gain and phase imbalance and/or skew correction circuitry to compensate for gain and phase skew can also be included.
Abstract translation: 讨论了用于补偿由混合器引入的信号损伤的技术。 采用这种技术的一个示例系统可以包括配置成接收信号的信号同相（I）和信号正交（Q）分量的混合器预失真电路，并且至少部分地基于信号I和Q分量来产生混合器预失真信号 ，其中混频器预失真信号补偿由上变频信号的混频器引起的非线性。 可选地，还可以包括用于补偿增益和相位不平衡和/或偏斜校正电路以补偿增益和相位偏移的不平衡校正电路。
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