公开(公告)号：US08970421B1

公开(公告)日：2015-03-03

申请号：US14035307

申请日：2013-09-24

Applicant: Marvell International Ltd.

Inventor： Xiang Gao ,  Chih-Wei Yao ,  Chi-Hung Lin ,  Li Lin

IPC: H03M1/50 ,  H03K5/13 ,  H03M1/06 ,  H03M1/12 ,  H03L7/081 ,  H03M1/00 ,  H03L7/089

CPC classification number: H03M1/50 ,  G04F10/005 ,  H03K5/13 ,  H03L7/0814 ,  H03L7/0891 ,  H03M1/00 ,  H03M1/0641 ,  H03M1/0695 ,  H03M1/12 ,  H03M2201/4233

Abstract: Disclosed is a time-to-digital (TDC) converter comprising an analog voltage source. An analog-to-digital converter quantizes two voltage samples in response to receiving a first input signal at a first time t1 and a second input signal at a second time t2. The first and second digital signals are combined to produce a digital signal that represents the difference (t2−t1).

Abstract translation: 公开了一种包括模拟电压源的时间数字（TDC）转换器。 响应于在第一时间t1接收第一输入信号和第二时间t2的第二输入信号，模数转换器量化两个电压采样。 第一和第二数字信号被组合以产生表示差的数字信号（t2-t1）。

公开(公告)号：US08981845B1

公开(公告)日：2015-03-17

申请号：US14143751

申请日：2013-12-30

Applicant: Marvell International Ltd.

Inventor： David M. Signoff ,  Li Lin ,  Renaldi Winoto ,  Wayne A. Loeb ,  Shu-Hsien Liao ,  Ming He

IPC: H03F3/68

CPC classification number: H03F3/68 ,  H03F1/0244 ,  H03F3/2175 ,  H03F3/24

Abstract: Systems and methods for power amplification using multiple digital amplifiers are provided. A power amplifier includes a first digital amplifier configured to process a digital input signal to generate a first analog output signal. The first analog output signal is configured to have a magnitude corresponding to amplitude information of the digital input signal. The power amplifier further includes a second digital amplifier configured to process an adjusted digital input signal to generate a second analog output signal. The second analog output signal is configured to have a magnitude corresponding to amplitude information of the adjusted digital input signal. An adjustment module configured to adjust amplitude information and phase information of the digital input signal generates the adjusted digital input signal. The digital input signal is adjusted to control a relationship between the first analog output signal and the second analog output signal.

Abstract translation: 提供了使用多个数字放大器进行功率放大的系统和方法。 功率放大器包括被配置为处理数字输入信号以产生第一模拟输出信号的第一数字放大器。 第一模拟输出信号被配置为具有对应于数字输入信号的振幅信息的幅度。 功率放大器还包括第二数字放大器，其被配置为处理经调整的数字输入信号以产生第二模拟输出信号。 第二模拟输出信号被配置为具有对应于经调整的数字输入信号的振幅信息的幅度。 被配置为调整数字输入信号的幅度信息和相位信息的调整模块生成调整后的数字输入信号。 调整数字输入信号以控制第一模拟输出信号和第二模拟输出信号之间的关系。

公开(公告)号：US08897729B1

公开(公告)日：2014-11-25

申请号：US14066087

申请日：2013-10-29

Applicant: Marvell International Ltd.

Inventor： Li Lin ,  Arnab Kumar Mitra ,  Daxiao Yu ,  Harish Ramamurthy ,  Sergey Timofeev ,  Lance Nagamine ,  Brian Bosso

IPC: H01Q11/12 ,  H04B1/04 ,  H04W52/08

CPC classification number: H04W52/08 ,  H04B1/04 ,  H04B17/13 ,  H04B2001/0416

Abstract: A radio frequency transmitting system which includes first and second amplifiers, a power detector, and a calibration module. The first amplifier amplifies an input signal to generate an amplified signal in accordance with a programmable gain. The second amplifier transmits an output signal based on the amplified signal. The output signal is transmitted at a particular power by the second amplifier. The power detector measures the particular power at which the output signal is transmitted by the second amplifier. The calibration module adjusts the programmable gain of the first amplifier by a calibration offset so that the particular power measurement matches a predetermined power. The calibration module includes offset generation modules that each generate a respective calibration offset candidate based on the particular power measurement. The calibration module also includes a selection module that selects, based on the predetermined power, one of the calibration offset candidates as the calibration offset.

Abstract translation: 一种射频发射系统，包括第一和第二放大器，功率检测器和校准模块。 第一放大器放大输入信号以根据可编程增益产生放大信号。 第二放大器基于放大信号发送输出信号。 输出信号由第二放大器以特定功率发送。 功率检测器测量第二放大器输出信号传输的特定功率。 校准模块通过校准偏移来调节第一放大器的可编程增益，使得特定功率测量与预定功率匹配。 校准模块包括偏移生成模块，每个偏移生成模块基于特定功率测量产生相应的校准偏移候选。 校准模块还包括选择模块，其基于预定功率选择校准偏移候选中的一个作为校准偏移。

公开(公告)号：US09929759B1

公开(公告)日：2018-03-27

申请号：US14843934

申请日：2015-09-02

Applicant: Marvell International Ltd.

Inventor： Yi Zhao ,  Renaldi Winoto ,  Li Lin

IPC: H04J1/00 ,  H04B1/10 ,  H04L5/14

CPC classification number: H04B1/1036 ,  H04L5/1461

Abstract: An apparatus includes a first circuit transmitting a first signal to a port, a second circuit receiving a second signal from the port, a first peak-notch filter coupled between the port and the first circuit and configured to pass the first signal and block the second signal, a second peak-notch filter coupled between the port and the second circuit and configured to pass the second signal and block the first signal, and a third filter coupled between an input of the first filter and a ground or between an output of the second filter and the ground. The first signal has a first frequency and the second signal has a second frequency that is different from the first frequency.

公开(公告)号：US09264005B1

公开(公告)日：2016-02-16

申请号：US13928269

申请日：2013-06-26

Applicant: Marvell International Ltd.

Inventor： SeongHwan Cho ,  Renaldi Winoto ,  Li Lin

IPC: H03G3/10 ,  H03G3/00

CPC classification number: H03F1/0222 ,  H03F1/025 ,  H03F1/223 ,  H03F3/19 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/411 ,  H03F2200/451 ,  H03F2200/511

Abstract: A method adjusts an amplitude of a power amplifier output voltage based on an amplitude feedback signal and adjusts a phase of the power amplifier output voltage based on a phase feedback signal. The method also controls a power efficiency of the power amplifier output voltage.

Abstract translation: 一种方法基于振幅反馈信号来调整功率放大器输出电压的幅度，并且基于相位反馈信号来调整功率放大器输出电压的相位。 该方法还控制功率放大器输出电压的功率效率。