公开(公告)号：US10886878B2

公开(公告)日：2021-01-05

申请号：US16321308

申请日：2016-09-26

申请人： Intel IP Corporation

发明人： Georgios Yorgos Palaskas ,  Paolo Madoglio ,  Dirk Friedrich

IPC分类号： H03B19/12 ,  H03C5/00 ,  H03M1/86 ,  H04B1/04 ,  H03C3/09

摘要： Modulation circuitry is configured to generate a phase modulated signal having an output frequency that corresponds to a local oscillator (LO) signal divided by N.5. A phase locked loop (PLL) is configured to generate an LO signal having a frequency that is N.5 times the output frequency. Pulse circuitry configured to generate, based at least on a value of N, an edge signal including a pulse aligned with a positive edge of the LO signal and a pulse aligned with a negative edge of the LO signal. The edge signal is used to generate the phase modulated signal.

公开(公告)号：US10468916B2

公开(公告)日：2019-11-05

申请号：US15909189

申请日：2018-03-01

申请人： uBeam Inc.

发明人： Meredith Perry

IPC分类号： H02J50/15 ,  H03C5/00 ,  G10K11/26 ,  G10K11/34 ,  H03C3/02 ,  G10K11/18 ,  H02J50/80 ,  H04B11/00 ,  H04R17/00 ,  H04R23/00 ,  B60L11/18 ,  H04R19/00 ,  H02J7/00 ,  H02J7/02 ,  H02J50/40 ,  H02J5/00 ,  B60L53/12 ,  B60L53/60 ,  H01F38/14

摘要： A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender transducer to generate ultrasonic waves that can be focused and sent to a receiver. The receiver transducer converts the ultrasonic waves back into electrical energy and stores it in an energy storage device, such as a battery, or uses the electrical energy to power a device. In this way, a device can be remotely charged or powered without having to be tethered to an electrical outlet.

公开(公告)号：US10128795B2

公开(公告)日：2018-11-13

申请号：US15398114

申请日：2017-01-04

申请人： Apple Inc.

发明人： Lydi Smaini ,  Tarik Tabet ,  Moustafa M. Elsayed

IPC分类号： H03C3/09 ,  H03C5/00 ,  H04L27/00

摘要： This disclosure relates to an apparatus, system, and method for generating uplink transmissions using a polar architecture including a phase locked loop with potential for two point injection. According to some embodiments, frequency resources allocated for a transmission may be determined. A cartesian baseband signal may be generated for the uplink transmission. The cartesian baseband signal may be converted to a polar baseband signal, including a baseband phase signal and an amplitude signal. Modulation parameters, potentially including whether to use one point injection or two point injection with a phase locked loop, may be determined. The baseband phase signal may be upconverted to an RF phase signal according to the determined modulation parameters. The RF phase signal may be amplified according to the amplitude signal to produce an RF signal. The RF signal may be transmitted.

公开(公告)号：US10050608B2

公开(公告)日：2018-08-14

申请号：US15189235

申请日：2016-06-22

申请人： THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE

发明人： Archita Hati ,  Craig Nelson ,  David Howe

IPC分类号： H03C1/06 ,  H03C3/04 ,  H03C5/00 ,  H03K5/1252 ,  H03C3/02

摘要： A phase modulation (PM) noise reducer to reduce phase modulation noise of an oscillator, the PM noise reducer including: an amplitude modulation (AM) detector to receive a primary oscillator signal and to produce an AM detector signal based on the primary oscillator signal, the primary oscillator signal including a first phase modulation (PM) noise; a control circuit in electrical communication with the AM detector to receive the AM detector signal and to produce a control signal; a phase shifter in electrical communication with the control circuit to receive the primary oscillator signal and the control signal and to produce a secondary oscillator signal based on the primary oscillator signal and the control signal, the secondary oscillator signal comprising a second PM noise, wherein the second PM noise is less than the first PM noise.

公开(公告)号：US09768733B2

公开(公告)日：2017-09-19

申请号：US14267999

申请日：2014-05-02

申请人： ParkerVision, Inc.

发明人： David F. Sorrells ,  Gregory S. Rawlins ,  Michael W. Rawlins

IPC分类号： H04B1/04 ,  H03F1/02 ,  H03C5/00 ,  H03F1/32 ,  H03F3/21 ,  H03F3/24 ,  H04L27/36 ,  H03F3/45 ,  H03G3/30 ,  H03F3/193 ,  H04L27/20

CPC分类号： H03F1/0233 ,  H03C5/00 ,  H03F1/02 ,  H03F1/0205 ,  H03F1/0294 ,  H03F1/32 ,  H03F1/3205 ,  H03F1/3223 ,  H03F3/193 ,  H03F3/211 ,  H03F3/24 ,  H03F3/245 ,  H03F3/45071 ,  H03F2200/336 ,  H03F2200/387 ,  H03F2200/451 ,  H03F2201/3215 ,  H03G3/3042 ,  H04B1/04 ,  H04B1/0475 ,  H04B1/0483 ,  H04B2001/045 ,  H04B2001/0491 ,  H04L27/20 ,  H04L27/36 ,  H04L27/362

摘要： Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one or more of the signals are controlled to provide the desired phase, frequency, and/or amplitude characteristics of the desired time-varying complex envelope signal. In another embodiment, a time-varying complex envelope signal is decomposed into a plurality of constant envelope constituent signals. The constituent signals are amplified equally or substantially equally, and then summed to construct an amplified version of the original time-varying envelope signal. Embodiments also perform frequency up-conversion.

公开(公告)号：US09407246B2

公开(公告)日：2016-08-02

申请号：US14716518

申请日：2015-05-19

申请人： NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY

发明人： Archita Hati ,  Craig Nelson ,  David Howe

IPC分类号： H03C1/06 ,  H03C3/04 ,  H03C5/00 ,  H03K5/1252

CPC分类号： H03K5/1252 ,  H03B2200/009 ,  H03C1/06 ,  H03C3/02 ,  H03C3/04 ,  H03C5/00

摘要： A phase modulation (PM) noise reducer includes: an amplitude modulation (AM) detector to receive a primary oscillator signal and to produce an AM detector signal, the primary oscillator signal including a first PM noise; and a control circuit to receive the AM detector signal, to produce a control signal, and to communicate the control signal to a phase shifter, wherein the phase shifter receives the primary oscillator signal and control signal, and the oscillator produces a secondary oscillator signal that includes a second PM noise that is less than the first PM noise, and further including; a PM detector and power splitter receives the primary oscillator signal, splits a power of the primary oscillator signal, and communicates the primary oscillator signal to the AM detector and PM detector.

摘要翻译： 相位调制（PM）降噪器包括：幅度调制（AM）检测器，用于接收主振荡器信号并产生AM检测器信号，所述主振荡器信号包括第一PM噪声; 以及控制电路，用于接收AM检测器信号，产生控制信号，并将控制信号传送到移相器，其中移相器接收主振荡器信号和控制信号，振荡器产生辅助振荡器信号， 包括小于第一PM噪声的第二PM噪声，并且还包括： PM检测器和功率分配器接收主振荡器信号，分离主振荡器信号的功率，并将主振荡器信号传送到AM检测器和PM检测器。

公开(公告)号：US09054642B2

公开(公告)日：2015-06-09

申请号：US13677458

申请日：2012-11-15

申请人： Intel Mobile Communications GmbH

发明人： Peter Noest ,  Martin Kastner

IPC分类号： H03C5/00 ,  H04L27/36

CPC分类号： H03C5/00 ,  H03F1/34 ,  H03F3/24 ,  H04B1/0475 ,  H04B2001/0433 ,  H04L27/361 ,  H04L27/368

摘要： A communication system includes a polar conversion component, a polar modulator, an RF front-end component, a feedback receiver, a delay compensation component, and an adder. The polar conversion component is configured to provide an amplitude signal and a phase signal. The polar modulator is configured to receive amplitude signal and the phase signal and to provide the phase modulated local oscillator signal and an RF output signal. The RF front-end component is configured to receive the RF output signal and to provide a coupled output signal. The feedback receiver is configured to receive the phase modulated local oscillator signal and the coupled output signal and to generate an uncompensated feedback phase information signal. The delay compensation component is configured to receive the phase signal and the uncompensated feedback phase information signal and to generate a compensation signal. The adder is configured to add the compensation signal to the uncompensated feedback phase information signal to generate a compensated feedback phase information signal.

摘要翻译： 通信系统包括极性转换组件，极性调制器，RF前端组件，反馈接收器，延迟补偿组件和加法器。 极性转换组件被配置为提供振幅信号和相位信号。 极性调制器被配置为接收振幅信号和相位信号，并提供相位调制的本地振荡器信号和RF输出信号。 RF前端组件被配置为接收RF输出信号并提供耦合的输出信号。 反馈接收器被配置为接收相位调制的本地振荡器信号和耦合的输出信号并产生未补偿的反馈相位信息信号。 延迟补偿分量被配置为接收相位信号和未补偿的反馈相位信息信号并产生补偿信号。 加法器被配置为将补偿信号添加到未补偿反馈相位信息信号以产生经补偿的反馈相位信息信号。

公开(公告)号：US08995567B2

公开(公告)日：2015-03-31

申请号：US11876037

申请日：2007-10-22

申请人： Ahmadreza Rofougaran ,  Maryam Rofougaran

发明人： Ahmadreza Rofougaran ,  Maryam Rofougaran

IPC分类号： H04K1/02 ,  H04L25/03 ,  H04L25/49 ,  H04L27/36 ,  H03C5/00 ,  H04L1/06

CPC分类号： H04W52/42 ,  H03C5/00 ,  H04B7/0413 ,  H04L1/06 ,  H04L27/206 ,  H04L27/361

摘要： Aspects of a method and system for power supply adjustment and polar modulation in a MIMO system are provided. In each RF transmit chain of a MIMO system that utilizes polar modulation, aspects of the invention may enable generating a signal representative of an amplitude of a pair of phase-quadrature baseband signals; and controlling a voltage and/or current regulator utilizing said generated signal. In this regard, a voltage and/or current supplied to a power amplifier and/or mixer of one or more of the transmit chains may be controlled based on the generated signal. Additionally, a gain of a power amplifier for each RF transmit chain may be controlled utilizing said signal representative of an amplitude. The signal representative of an amplitude may be generated by squaring each of the phase-quadrature baseband signals and calculating a square root of a sum of the squared signals.

摘要翻译： 提供了一种用于MIMO系统中的电源调整和极性调制的方法和系统的方面。 在利用极性调制的MIMO系统的每个RF发射链中，本发明的各方面可以使得能够产生表示一对相位正交基带信号的振幅的信号; 以及利用所述产生的信号来控制电压和/或电流调节器。 在这点上，可以基于产生的信号来控制提供给发射链中的一个或多个的功率放大器和/或混频器的电压和/或电流。 此外，可以利用表示幅度的所述信号来控制每个RF发射链的功率放大器的增益。 表示振幅的信号可以通过对每个相位正交基带信号进行平方并且计算平方信号的和的平方根来生成。

公开(公告)号：US20140285276A1

公开(公告)日：2014-09-25

申请号：US14220776

申请日：2014-03-20

申请人： FUJITSU LIMITED

发明人： Toshio KAWASAKI

IPC分类号： H03C5/00

CPC分类号： H03C5/00 ,  H03C3/00 ,  H03C3/02 ,  H03C2200/0041 ,  H03C2200/0058 ,  H04L25/067 ,  H04L27/20 ,  H04L27/206

摘要： A modulating device including: a first convertor configured to generate a converted analog signal by analog conversion on a input digital signal, a modulator configured to generate a modulated signal by quadrature modulation, a phase shifter configured to generate a phase shift signal by phase rotation, a demodulator configured to generate a demodulated signal by quadrature demodulation, a second convertor to generate a converted digital signal by digital conversion, a calculating circuit configured to estimate a the first direct current offset based on the input digital signal and the converted digital signal, the first direct current offset being a noise of digital current component generated between the input digital signal inputted to the first convertor and the output signal inputted to the demodulator, and a correcting circuit configured to correct at least one among from the input digital signal to the output signal based on the first direct current offset.

摘要翻译： 一种调制装置，包括：第一转换器，被配置为通过对输入数字信号进行模拟转换来生成转换的模拟信号;调制器，被配置为通过正交调制生成调制信号;移相器，被配置为通过相位旋转产生相移信号; 解调器，被配置为通过正交解调产生解调信号，第二转换器通过数字转换产生转换的数字信号;计算电路，被配置为基于所输入的数字信号和转换的数字信号来估计第一直流偏移， 第一直流偏移是在输入到第一转换器的输入数字信号与输入到解调器的输出信号之间产生的数字电流分量的噪声，以及校正电路，被配置为校正输入数字信号与输出之间的至少一个 信号基于第一直流偏移。

公开(公告)号：US08817909B2

公开(公告)日：2014-08-26

申请号：US11606214

申请日：2006-11-29

申请人： Chitao Goe ,  Markku Renfors

发明人： Chitao Goe ,  Markku Renfors

IPC分类号： H03C1/00 ,  H03C5/00

CPC分类号： H03C5/00

摘要： A polar modulator arrangement includes a first and a second node to receive a signal having a first and a second component corresponding to an amplitude component and a phase component. A frequency separation device separates the first component into a low-frequency portion and a high-frequency portion depending on a cut-off frequency. The high-frequency portion is nonlinearly filtered and combined with the low-frequency portion to a first processed component. A combination element generates a polar modulated radio frequency signal as a function of the first processed component and the second component.

摘要翻译： 极性调制器装置包括第一和第二节点，用于接收具有对应于振幅分量和相位分量的第一和第二分量的信号。 频率分离装置根据截止频率将第一分量分离成低频部分和高频部分。 高频部分被非线性滤波并与低频部分组合到第一处理部件。 组合元件产生作为第一处理部件和第二部件的函数的极化调制射频信号。