公开(公告)号：US20200162076A1

公开(公告)日：2020-05-21

申请号：US16193649

申请日：2018-11-16

Applicant: Analog Devices Global Unlimited Company

Inventor： Alan Patrick Cahill ,  Michal Brychta ,  Patrick C. Kirby

IPC: H03K19/0175 ,  H03C3/02 ,  H03D7/00 ,  H04B1/04 ,  H04B1/16 ,  H04L27/12

Abstract: Techniques for mixing, or modulating, a high-frequency, digital communication signal with a low-frequency, analog current loop signal are provided. In certain examples, the techniques allow mixing the signals in a non-AC coupled manner. In certain examples, such mixing techniques can allow for simplified connections between a modem chip and an analog current loop interface chip of an analog I/O module.

公开(公告)号：US10468916B2

公开(公告)日：2019-11-05

申请号：US15909189

申请日：2018-03-01

Applicant: uBeam Inc.

Inventor： Meredith Perry

IPC: 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

Abstract: 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：US10057093B2

公开(公告)日：2018-08-21

申请号：US15197058

申请日：2016-06-29

Applicant: International Business Machines Corporation

Inventor： Wooram Lee ,  Jean-Olivier Plouchart ,  Alberto Valdes Garcia

IPC: H04L27/20 ,  H03C3/02 ,  H03D7/12

CPC classification number: H04L27/20 ,  H03C3/02 ,  H03C3/245 ,  H03D7/12 ,  H03D7/1433

Abstract: A commutating circuit includes a single-ended mixer and a passive network. The single-ended mixer includes a differential local oscillator terminal. The passive network includes a plurality of inductors and a capacitor. The plurality of inductors can be coupled to the differential local oscillator terminal. The plurality of inductors can provide an impedance in accordance with a common mode or a differential mode. The commutating circuit can be implemented via a device, a system and/or a method.

公开(公告)号：US10050608B2

公开(公告)日：2018-08-14

申请号：US15189235

申请日：2016-06-22

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

Inventor： Archita Hati ,  Craig Nelson ,  David Howe

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

Abstract: 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：US20160156366A1

公开(公告)日：2016-06-02

申请号：US14897854

申请日：2014-06-11

Applicant: IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.

Inventor： Laurent LAMESCH

IPC: H03M1/20 ,  H03M1/12 ,  H03C3/02

CPC classification number: H03M1/20 ,  H03C3/02 ,  H03M1/124 ,  H03M1/201

Abstract: A capacitive sensing system operates according to a method which uses an ADC with a low resolution r, to produce a digital signal with a higher resolution R. The analog signal to be digitized is modulated with a triangular or saw-tooth modulating signal, so that a modulated analog signal is obtained, which is sampled with the ADC. Thereby, digital samples are produced. An average is taken over N (>1) successive digital samples. The triangular or saw-tooth signal is chosen to have a peak-to-peak amplitude corresponding at least approximately to an integer multiple L, with L≧1, of the quantization step size of the ADC. The saw-tooth or triangular signal, furthermore, has a number M, of periods per each sequence of N samples. M and N are chosen such that M>1 and M≠N and such that R=r*N/(k*gcd(N, M)*L), where gcd(M, N) is the greatest common divisor of N and M and where k=2 if the modulating signal is a saw-tooth signal and k=4 if the modulating signal is a triangular signal.

Abstract translation: 电容式感测系统根据使用具有低分辨率r的ADC的方法进行工作，以产生具有更高分辨率R的数字信号。要被数字化的模拟信号用三角形或锯齿调制信号调制，使得 得到一个调制的模拟信号，用ADC进行采样。 从而产生数字样本。 N（> 1）个连续数字样本的平均数。 三角形或锯齿状信号被选择为具有至少近似于ADC的量化步长的L≥1的整数倍L的峰峰值幅度。 此外，锯齿或三角形信号具有每个N个样本的每个序列的周期数M。 M和N被选择为使得M> 1且M≠N，并且使得R = r * N /（k * gcd（N，M）* L），其中gcd（M，N）是N的最大公约数 如果调制信号是锯齿信号，则k = 2，如果调制信号是三角形信号，则k = 4。

公开(公告)号：US09312814B2

公开(公告)日：2016-04-12

申请号：US13980861

申请日：2012-12-07

Applicant: Korea Basic Science Institute

Inventor： Seung Young Park ,  Sang IL Kim

IPC: H03D1/00 ,  H03D3/28 ,  H03C1/00 ,  H03C3/02 ,  H03B15/00 ,  G01R33/06 ,  H01L29/82 ,  G01R33/09 ,  H04B1/38 ,  H03D5/00 ,  H03D1/22 ,  G11B5/02 ,  H04L27/14 ,  H04L27/06

CPC classification number: H03D3/28 ,  G01R33/06 ,  G01R33/09 ,  G11B5/02 ,  H01L29/82 ,  H03B15/006 ,  H03C1/00 ,  H03C3/02 ,  H03D1/00 ,  H03D1/2236 ,  H03D5/00 ,  H04B1/38 ,  H04L27/06 ,  H04L27/14

Abstract: A demodulation device according to the present invention includes a spin device configured to output an oscillation signal; a phase control unit configured to assign a predetermined phase locking characteristic to the spin device, thereby causing the oscillation signal to be tuned to a modulation signal that is input to the spin device; and a detector configured to demodulate the oscillation signal that is output by the spin device and tuned to the modulation signal, thereby restoring information carried on the oscillation signal.

Abstract translation: 根据本发明的解调装置包括：被配置为输出振荡信号的自旋装置; 相位控制单元，被配置为向所述自旋装置分配预定的相位锁定特性，从而使所述振荡信号被调谐到输入到所述旋转装置的调制信号; 以及检测器，被配置为解调由所述自旋装置输出并被调谐到所述调制信号的振荡信号，从而恢复所述振荡信号上携带的信息。

公开(公告)号：US20150213791A1

公开(公告)日：2015-07-30

申请号：US14680388

申请日：2015-04-07

Applicant: uBeam, Inc.

Inventor： Meredith PERRY

IPC: G10K11/18 ,  H03C3/02 ,  G10K11/34 ,  H02J7/00

CPC classification number: H02J50/15 ,  B60L11/182 ,  B60L11/1838 ,  G10K11/18 ,  G10K11/26 ,  G10K11/341 ,  G10K11/346 ,  H01F38/14 ,  H02J5/005 ,  H02J7/0052 ,  H02J7/025 ,  H02J17/00 ,  H02J50/40 ,  H02J50/80 ,  H03C3/02 ,  H03C5/00 ,  H04B11/00 ,  H04R17/00 ,  H04R19/00 ,  H04R23/00 ,  Y02E60/12 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/121 ,  Y02T90/122 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/16 ,  Y02T90/163 ,  Y02T90/168 ,  Y04S30/12

Abstract: 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.

Abstract translation: 信号发生器产生发送到放大器的电信号，其使用来自电源的功率来增加信号的功率。 放大的信号被馈送到发送器换能器以产生可被聚焦并发送到接收器的超声波。 接收器传感器将超声波转换回电能并将其存储在诸如电池的能量存储装置中，或者使用电能来为设备供电。 以这种方式，可以将设备远程充电或供电，而无需连接到电源插座。

公开(公告)号：US08576948B2

公开(公告)日：2013-11-05

申请号：US13256894

申请日：2010-12-17

Applicant: Toru Matsuura ,  Kenji Miyanaga

Inventor： Toru Matsuura ,  Kenji Miyanaga

IPC: H04B1/38 ,  H04B7/00 ,  H03C1/50 ,  H03C3/02

CPC classification number: H04L27/20 ,  H03C3/095

Abstract: Disclosed are an angle modulator, a transmission apparatus, and a radio communication apparatus that can compensate phase discontinuity when an operational mode of a voltage controlled oscillator is switched. Angle modulator (100) includes phase difference detection section (150) that detects a difference of phases between an input signal of subtractor (141) and an angle modulated signal, using the result of subtraction by subtractor (141) of frequency locked loop circuit (140); correction control section (160) that generates a control signal for compensating that difference of phases based on that difference of phases; correction section (120) that corrects the phase of the angle modulated signal by adding the control signal to an input signal of angle modulator (100), an input signal of loop filter (142), or an input signal of VCO (143) during a predetermined period after VCO (143) switches the operational mode (from time t3 to time t4).

Abstract translation: 公开了一种角度调制器，发送装置和无线电通信装置，其可以在切换压控振荡器的操作模式时补偿相位不连续性。 角度调制器（100）包括相位差检测部分（150），其使用锁相环电路的减法器（141）减法的结果来检测减法器（141）的输入信号与角度调制信号之间的相位差 140）; 校正控制部分（160），其基于所述相位差产生用于补偿所述相位差的控制信号; 校正部分（120），其通过将控制信号与角度调制器（100）的输入信号，环路滤波器（142）的输入信号或VCO（143）的输入信号相加来校正角度调制信号的相位， 在VCO（143）切换操作模式（从时间t3到时间t4）之后的预定时间段。

公开(公告)号：US20130063220A1

公开(公告)日：2013-03-14

申请号：US13231874

申请日：2011-09-13

Applicant: Earl W. McCune, JR.

Inventor： Earl W. McCune, JR.

IPC: H03C5/00 ,  H03C3/02

CPC classification number: H04L27/20 ,  H03C1/20 ,  H03C1/60 ,  H03C3/02 ,  H03C5/00

Abstract: A wideband phase modulator comprises a multiphase generator, a phase selector, and a phase adjuster. The wideband phase modulator is configured to receive an N-bit digital phase-modulating signal comprising a timed sequence of N-bit phase-modulating words, where N is a positive integer representing the bit resolution of the N-bit digital phase-modulating signal. The multiphase generator generates a plurality of coarse carrier phases, all having the same carrier frequency but each offset in phase relative to the other. The M most significant bits of the N-bit phase-modulating words are used to form M-bit phase select words that control the output phase of the phase selector. The phase adjuster performs a precision rotation operation, whereby a selected coarse carrier phase is adjusted so that the phase of the resulting final precision phase-modulated signal more closely aligns with a desired precision phase.

Abstract translation: 宽带相位调制器包括多相发生器，相位选择器和相位调节器。 宽带相位调制器被配置为接收包括N位相位调制字的定时序列的N位数字相位调制信号，其中N是表示N位数字相位调制信号的位分辨率的正整数 。 多相发生器产生多个粗载波相位，它们都具有相同的载波频率，但每相位相对于彼此相位偏移。 N位相位调制字的M个最高有效位用于形成控制相位选择器的输出相位的M位相位选择字。 相位调节器执行精密旋转操作，由此调整所选择的粗载波相位，使得所得到的最终精度相位调制信号的相位与期望的精度相位更紧密地对准。

公开(公告)号：US20130016796A1

公开(公告)日：2013-01-17

申请号：US13182444

申请日：2011-07-14

Applicant: Chih-Hao Sun ,  Chi-Yao Yu

Inventor： Chih-Hao Sun ,  Chi-Yao Yu

IPC: H04L27/36 ,  H03C3/02

CPC classification number: H04L27/361 ,  H04L27/2075

Abstract: A signal modulator includes: a modulating circuit; a first signal trace block arranged to conduct a first in-phase oscillating signal to the modulating circuit, and conduct a first quadrature-phase oscillating signal to the modulating circuit; and a second signal trace block arranged to conduct a second in-phase oscillating signal to the modulating circuit, and conduct a second quadrature-phase oscillating signal to the modulating circuit, and a phase difference caused by the first signal trace block substantially equals a phase difference caused by the second signal trace block.

Abstract translation: 信号调制器包括：调制电路; 第一信号轨迹块，布置成将第一同相振荡信号传导到调制电路，并且向调制电路传导第一正交振荡信号; 以及第二信号轨迹块，被布置成将第二同相振荡信号传导到调制电路，并且向调制电路传导第二正交振荡信号，并且由第一信号轨迹块引起的相位差基本上等于相位 由第二信号跟踪块引起的差异。