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公开(公告)号：US20150155893A1
公开(公告)日：2015-06-04
申请号：US14559522
申请日：2014-12-03
Applicant: Marvell World Trade Ltd.
Inventor： Renaldi Winoto
IPC: H04B1/04
CPC classification number: H04L7/02 , H03F3/217 , H03F3/2175 , H03F3/24 , H04B1/04 , H04B1/0458 , H04B2001/0408
Abstract: Systems and techniques relating to wireless communication devices and digital power amplifiers include, according to an aspect, a device including: modulation circuitry of a radio frequency transmitter having a local oscillator frequency; a digital power amplifier coupled with the modulation circuitry; and a clock input coupled with the digital power amplifier; wherein the clock input provides a clock signal to the digital amplifier at a sampling clock frequency; and wherein the local oscillator frequency is an integer multiple of the sampling clock frequency.
Abstract translation: 与无线通信装置和数字功率放大器相关的系统和技术包括：根据一个方面的装置，包括：具有本地振荡器频率的射频发射机的调制电路; 与调制电路耦合的数字功率放大器; 以及与数字功率放大器耦合的时钟输入; 其中所述时钟输入以采样时钟频率向所述数字放大器提供时钟信号; 并且其中本地振荡器频率是采样时钟频率的整数倍。
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公开(公告)号：US09490966B2
公开(公告)日：2016-11-08
申请号：US14977547
申请日：2015-12-21
Applicant: Marvell World Trade Ltd.
Inventor： Renaldi Winoto
CPC classification number: H04L7/02 , H03F3/217 , H03F3/2175 , H03F3/24 , H04B1/04 , H04B1/0458 , H04B2001/0408
Abstract: Systems and techniques relating to wireless communication devices and digital power amplifiers include, according to an aspect, an apparatus including: processor electronics; transceiver electronics coupled with the processor electronics, the transceiver electronics including modulation circuitry and a digital power amplifier coupled with the modulation circuitry; a clock source coupled with the transceiver electronics to provide a clock signal from the clock source to the digital power amplifier at a sampling clock frequency; a local oscillator coupled with the transceiver electronics to provide a local oscillator signal from the local oscillator to the modulation circuitry at a local oscillator frequency; and one or more antennas coupled with the digital power amplifier in the transceiver electronics; wherein the local oscillator frequency is an integer multiple of the sampling clock frequency; and wherein a parasitic frequency response of circuitry in the transceiver electronics acts as an implicit out-of-band filter to remove alias signals.
Abstract translation: 根据一个方面，与无线通信设备和数字功率放大器有关的系统和技术包括：处理器电子设备; 收发器电子器件与处理器电子器件耦合，收发器电子器件包括调制电路和与调制电路耦合的数字功率放大器; 与收发器电子设备耦合的时钟源，以采样时钟频率从时钟源向数字功率放大器提供时钟信号; 与收发器电子器件耦合的本地振荡器，以本地振荡器频率向本地振荡器提供本地振荡器信号到调制电路; 以及与收发器电子设备中的数字功率放大器耦合的一个或多个天线; 其中本地振荡器频率是采样时钟频率的整数倍; 并且其中所述收发器电路中的电路的寄生频率响应用作隐式带外滤波器以去除别名信号。
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13.发明授权Method and apparatus for detecting an output power of a radio frequency transmitter using a multiplier circuit 有权用于使用乘法器电路检测射频发射机的输出功率的方法和装置公开(公告)号：US09292716B2
公开(公告)日：2016-03-22
申请号：US14669418
申请日：2015-03-26
Applicant: Marvell World Trade Ltd.
Inventor： Renaldi Winoto , David M. Signoff
CPC classification number: G06G7/163 , G01R17/16 , G01R21/00 , G06G7/16 , H03D7/1441 , H03D7/1458 , H03D7/1466 , H03D2200/0043
Abstract: A power detection circuit configured to detect an output power of a radio frequency transmitter. The power detection circuit includes a multiplier circuit configured to multiply a first differential input signal and a second differential input signal. The first differential input signal corresponds to a radio frequency signal to be amplified by the radio frequency transmitter. The second differential signal corresponds to an output signal as amplified by an amplifier of the radio frequency transmitter. A bias circuit is configured to generate a bias signal. A differential amplifier is configured to generate, based on the bias signal and the first differential signal and the second differential signal as multiplied by the multiplier circuit, an indication of the output power of the amplifier of the radio frequency transmitter.
Abstract translation: 一种功率检测电路，被配置为检测射频发射机的输出功率。 功率检测电路包括乘法器电路，其被配置为将第一差分输入信号和第二差分输入信号相乘。 第一差分输入信号对应于由射频发射机放大的射频信号。 第二差分信号对应于由射频发射机的放大器放大的输出信号。 偏置电路被配置为产生偏置信号。 差分放大器被配置为基于偏置信号和乘以乘法器电路的第一差分信号和第二差分信号来产生射频发射器的放大器的输出功率的指示。
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Patent Agency Ranking
公开(公告)号：US08948717B2
公开(公告)日：2015-02-03
申请号：US14199725
申请日：2014-03-06
Applicant: Marvell World Trade Ltd.
Inventor： Renaldi Winoto , Jinho Park
CPC classification number: H04B17/0062 , H03G3/3068 , H04B1/10 , H04B17/21
Abstract: A receiver includes an antenna configured to receive a set of RF signals, and a low-noise amplifier (LNA) coupled to the antenna and amplify the set of RF signals to generate a set of amplified signals. The receiver further includes a down-conversion mixer configured to down convert the set of amplified signals to baseband frequencies. The receiver further includes a low-pass filter configured to filter from the set of amplified signals to baseband frequencies an out-of-band signal. The receiver further includes a high-pass filter configured to reverse the filtering of the low-pass filter. The receiver further includes a peak detector configured to determine whether the LNA is operating at saturation; and an automatic-gain controller configured to decrease a gain of the LNA based on the determination of the peak detector.
Abstract translation: 接收机包括被配置为接收一组RF信号的天线以及耦合到天线的低噪声放大器（LNA），并放大该RF信号集合以产生一组放大的信号。 接收机还包括一个下变频混频器，配置成将放大信号的集合下变频为基带频率。 所述接收器还包括低通滤波器，其被配置为从所述放大信号集合过滤到基带频率的带外信号。 接收机还包括被配置为反转低通滤波器的滤波的高通滤波器。 接收器还包括配置成确定LNA是否工作在饱和状态的峰值检测器; 以及自动增益控制器，被配置为基于峰值检测器的确定来降低LNA的增益。
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公开(公告)号：US20140187185A1
公开(公告)日：2014-07-03
申请号：US14199725
申请日：2014-03-06
Applicant: MARVELL WORLD TRADE LTD.
Inventor： Renaldi Winoto , Jinho Park
CPC classification number: H04B17/0062 , H03G3/3068 , H04B1/10 , H04B17/21
Abstract: A receiver includes an antenna configured to receive a set of RF signals, and a low-noise amplifier (LNA) coupled to the antenna and amplify the set of RF signals to generate a set of amplified signals. The receiver further includes a down-conversion mixer configured to down convert the set of amplified signals to baseband frequencies. The receiver further includes a low-pass filter configured to filter from the set of amplified signals to baseband frequencies an out-of-band signal. The receiver further includes a high-pass filter configured to reverse the filtering of the low-pass filter. The receiver further includes a peak detector configured to determine whether the LNA is operating at saturation; and an automatic-gain controller configured to decrease a gain of the LNA based on the determination of the peak detector.
Abstract translation: 接收机包括被配置为接收一组RF信号的天线以及耦合到天线的低噪声放大器（LNA），并且放大该RF信号集合以产生一组放大信号。 接收机还包括一个下变频混频器，配置成将放大信号的集合下变频为基带频率。 所述接收器还包括低通滤波器，其被配置为从所述放大信号集合过滤到基带频率的带外信号。 接收机还包括被配置为反转低通滤波器的滤波的高通滤波器。 接收器还包括配置成确定LNA是否工作在饱和状态的峰值检测器; 以及自动增益控制器，被配置为基于峰值检测器的确定来降低LNA的增益。
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16.发明申请GAIN CONTROL IN A SHARED RF FRONT-END PATH FOR DIFFERENT STANDARDS THAT USE THE SAME FREQUENCY BAND 有权在使用相同频带的不同标准的共享RF前端路径中增益控制公开(公告)号：US20130252565A1
公开(公告)日：2013-09-26
申请号：US13903324
申请日：2013-05-28
Applicant: MARVELL WORLD TRADE LTD.
Inventor： Saeed Chehrazi , Renaldi Winoto , Jinho Park
IPC: H04B1/04
CPC classification number: H04B1/0458 , H03G1/0088 , H03G3/3052 , H04B1/406 , H04B2001/0416
Abstract: Disclosed is a radio frequency (RF) communication circuit having an input for receiving an RF signal and providing independently gain controlled signal paths from the input. In a first signal path, the signal is amplified by a constant gain. In a second signal path, the signal is amplified by a constant gain and by a variable gain amplifier.
Abstract translation: 公开了一种射频（RF）通信电路，其具有用于接收RF信号的输入并且从输入提供独立的增益受控信号路径。 在第一信号路径中，信号被恒定的增益放大。 在第二信号路径中，信号被恒定增益放大，并由可变增益放大器放大。
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17.发明申请RF POWER DETECTION CIRCUIT WITH INSENSITIVITY TO PROCESS, TEMPERATURE AND LOAD IMPEDANCE VARIATION 有权具有对过程，温度和负载阻抗变化的敏感性的RF功率检测电路公开(公告)号：US20130154615A1
公开(公告)日：2013-06-20
申请号：US13713328
申请日：2012-12-13
Applicant: Marvell World Trade Ltd.
Inventor： Renaldi Winoto , David M. Signoff
CPC classification number: G06G7/163 , G01R17/16 , G01R21/00 , G06G7/16 , H03D7/1441 , H03D7/1458 , H03D7/1466 , H03D2200/0043
Abstract: A circuit includes a multiplier circuit including a mixer configured to multiply a first differential input signal and a second differential input signal. The mixer includes a plurality of transistors including control terminals. The control terminals of the plurality of transistors receive a bias signal and the first differential input signal. A bias circuit is configured to generate the bias signal. The bias signal generated by the bias circuit is based on a voltage threshold of one of the plurality of transistors and a product of constant reference current and a bias resistance.
Abstract translation: 电路包括乘法器电路，该乘法器电路包括被配置为将第一差分输入信号和第二差分输入信号相乘的混频器。 混频器包括多个包括控制端的晶体管。 多个晶体管的控制端子接收偏置信号和第一差分输入信号。 偏置电路被配置为产生偏置信号。 由偏置电路产生的偏置信号基于多个晶体管之一的电压阈值和恒定参考电流与偏置电阻的乘积。
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18.发明授权RF power detection circuit with insensitivity to process, temperature and load impedance variation 有权RF功率检测电路对过程不敏感，温度和负载阻抗变化公开(公告)号：US08994362B2
公开(公告)日：2015-03-31
申请号：US13713328
申请日：2012-12-13
Applicant: Marvell World Trade Ltd.
Inventor： Renaldi Winoto , David M. Signoff
CPC classification number: G06G7/163 , G01R17/16 , G01R21/00 , G06G7/16 , H03D7/1441 , H03D7/1458 , H03D7/1466 , H03D2200/0043
Abstract: A circuit includes a multiplier circuit including a mixer configured to multiply a first differential input signal and a second differential input signal. The mixer includes a plurality of transistors including control terminals. The control terminals of the plurality of transistors receive a bias signal and the first differential input signal. A bias circuit is configured to generate the bias signal. The bias signal generated by the bias circuit is based on a voltage threshold of one of the plurality of transistors and a product of constant reference current and a bias resistance.
Abstract translation: 电路包括乘法器电路，该乘法器电路包括被配置为将第一差分输入信号和第二差分输入信号相乘的混频器。 混频器包括多个包括控制端的晶体管。 多个晶体管的控制端子接收偏置信号和第一差分输入信号。 偏置电路被配置为产生偏置信号。 由偏置电路产生的偏置信号基于多个晶体管之一的电压阈值和恒定参考电流与偏置电阻的乘积。
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