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1. 发明公开

US20240313728A1 AMPLIFIERS 审中-公开
公开(公告)号：US20240313728A1
公开(公告)日：2024-09-19
申请号：US18601651
申请日：2024-03-11
申请人： Nordic Semiconductor ASA
发明人： Marko PESSA , Tuomas LEINONEN
IPC分类号： H03G3/00 , H03F3/24 , H03G1/04
CPC分类号： H03G3/001 , H03F3/245 , H03F2200/465 , H03G1/04
摘要： An amplifier apparatus is arranged to amplify an input signal with a gain based on a digital gain control signal. The amplifier apparatus comprises a digital-to-analogue converter arranged to convert the digital gain control signal into an analogue gain control signal according to a first non-linear relationship between digital gain control signal and analogue gain control signal; and an amplifier circuit portion arranged to amplify the input signal with a gain based on the analogue gain control signal according to a second non-linear relationship between analogue gain control signal and gain. The first non-linear relationship is based on the second non-linear relationship.

2. 发明公开

US20240106404A1 Circuit for Integrating Currents from High-Density Sensors 审中-公开
公开(公告)号：US20240106404A1
公开(公告)日：2024-03-28
申请号：US17955503
申请日：2022-09-28
申请人： Texas Instruments Incorporated
发明人： Nagesh Surendranath , Eduardo Bartolome , Saugata Datta
IPC分类号： H03G1/04 , H03F1/26 , H03F3/45 , H03G3/30
CPC分类号： H03G1/04 , H03F1/26 , H03F3/45475 , H03G3/3031
摘要： A circuit includes a plurality of first stage integrators. Each of the plurality of first stage integrators includes a first input, a second input, a third input and an output. The first input of each of the plurality of first stage integrators is coupled to a different one of circuit inputs, the second input is coupled to a first reference input, the third input is coupled to a second reference input and the output of each of the plurality of first stage integrators is coupled to the first input of such first stage integrator. The circuit includes a second stage integrator which includes a first input coupled to each of the first inputs of the plurality of first stage integrators, a second input coupled to the first reference input, and an output coupled to the first input of the second stage integrator.

3. 发明申请

US20170331438A1 METHOD AND APPARATUS FOR CHANGING THE GAIN OF A RADIO FREQUENCY SIGNAL 审中-公开
公开(公告)号：US20170331438A1
公开(公告)日：2017-11-16
申请号：US15668111
申请日：2017-08-03
申请人： MAXLINEAR ASIA SINGAPORE PTE LTD.
发明人： Paulius MOSINSKIS , Omkar JOSHI
IPC分类号： H03F3/193 , H03G1/00 , H03F3/72 , H03G3/30 , H03G1/04
CPC分类号： H03G1/0094 , H03F3/193 , H03F3/24 , H03F3/72 , H03F2200/451 , H03F2203/7236 , H03G1/007 , H03G1/0088 , H03G1/04 , H03G3/3052 , H04B2001/0408
摘要： A method and electronic circuit for changing the gain of a radio frequency signal. The apparatus is an electronic circuit comprising one or more variable gain electronic elements, and one or more adjustable phase shifting elements. The method comprises the steps of receiving a radio frequency signal, varying the gain of the variable gain electronic element while the variable gain electronic element changes the amplitude of the radio frequency signal, and adjusting an adjustable phase shifting element to generate a reverse phase shift in the radio frequency signal in response to the associated phase shift from the step of varying the gain.

4. 发明申请

US20170214418A1 BANDWIDTH OPTIMIZATION FOR POWER AMPLIFIER POWER SUPPLIES 审中-公开
公开(公告)号：US20170214418A1
公开(公告)日：2017-07-27
申请号：US15094250
申请日：2016-04-08
申请人： RF Micro Devices, Inc.
发明人： Ashraf Rozek , Jason Yorks
IPC分类号： H04B1/04 , H04L5/14
CPC分类号： H03F1/025 , G05F3/02 , H03F1/02 , H03F1/0277 , H03F3/189 , H03F3/193 , H03F3/24 , H03F2200/507 , H03G1/04 , H03H21/002 , H04L5/1461
摘要： Circuitry, which includes a PA power supply and RF PA circuitry, is disclosed. The RF PA circuitry includes a group of RF PAs and a group of PA decoupling circuits. The group of RF PAs includes a first RF PA and a second RF PA. The group of PA decoupling circuits includes a first PA decoupling circuit and a second PA decoupling circuit. The PA power supply provides a first PA power supply output signal to at least one of the group of RF PAs and to at least one of the group of PA decoupling circuits. The first PA decoupling circuit is coupled across the first RF PA, is programmable, and at least partially decouples the first RF PA from other circuitry. The second PA decoupling circuit is coupled across the second RF PA and at least partially decouples the second RF PA from other circuitry.

5. 发明申请

US20170040964A1 METHOD AND APPARATUS FOR CHANGING THE GAIN OF A RADIO FREQUENCY SIGNAL 审中-公开
标题翻译：改变无线电频率信号增益的方法和装置
公开(公告)号：US20170040964A1
公开(公告)日：2017-02-09
申请号：US15297733
申请日：2016-10-19
申请人： MAXLINEAR ASIA SINGAPORE PTE LTD.
发明人： Paulius MOSINSKIS , Omkar JOSHI
IPC分类号： H03G1/00 , H03F3/193
CPC分类号： H03G1/0094 , H03F3/193 , H03F3/24 , H03F3/72 , H03F2200/451 , H03F2203/7236 , H03G1/007 , H03G1/0088 , H03G1/04 , H03G3/3052 , H04B2001/0408
摘要： A method and electronic circuit for changing the gain of a radio frequency signal. The apparatus is an electronic circuit comprising one or more variable gain electronic elements, and one or more adjustable phase shifting elements. The method comprises the steps of receiving a radio frequency signal, varying the gain of the variable gain electronic element while the variable gain electronic element changes the amplitude of the radio frequency signal, and adjusting an adjustable phase shifting element to generate a reverse phase shift in the radio frequency signal in response to the associated phase shift from the step of varying the gain.
摘要翻译：一种改变射频信号增益的方法和电子电路。该装置是包括一个或多个可变增益电子元件和一个或多个可调节相移元件的电子电路。该方法包括以下步骤：在可变增益电子元件改变射频信号的幅度的同时，接收改变可变增益电子元件的增益的射频信号，以及调整可调相移元件以产生反相移所述射频信号响应于从改变增益的步骤的相关联的相移。

6. 发明授权

US09559653B2 Digital automatic gain control 有权
标题翻译：数字自动增益控制
公开(公告)号：US09559653B2
公开(公告)日：2017-01-31
申请号：US13849652
申请日：2013-03-25
申请人： K/S HIMPP
发明人： Jon S. Kindred , Bryant Sorensen , Jerry Wahl
IPC分类号： H03G3/00 , H03G3/30 , H03G1/04 , H03G7/08 , H04R25/00
CPC分类号： H03G3/3005 , H03G1/04 , H03G3/301 , H03G7/08 , H04R25/356 , H04R25/505
摘要： Systems, devices, and methods are provided to inhibit apparent amplitude modulation in non-linear processing that causes distortion in a processed signal. One aspect of the invention includes a hearing aid. The hearing aid includes a microphone to receive an input signal, a speaker to reproduce the input signal, and a processor. The processor processes the input signal using a gain. The processor includes an inhibitor, which inhibits distortions, and an adjuster, which adjusts the gain. The inhibitor acts to smooth an envelope of the input signal to inhibit undesired modulation. The adjuster adjusts the gain if the envelope is either above or below a threshold.
摘要翻译：提供了系统，装置和方法来抑制导致处理信号失真的非线性处理中的视在幅度调制。本发明的一个方面包括助听器。助听器包括用于接收输入信号的麦克风，再现输入信号的扬声器和处理器。处理器使用增益处理输入信号。处理器包括抑制失真的抑制剂和调整增益的调节器。抑制剂用于平滑输入信号的包络以抑制不期望的调制。如果信封高于或低于阈值，调节器将调整增益。

7. 发明授权

US09503040B1 Method and apparatus for changing the gain of a radio frequency signal 有权
标题翻译：改变射频信号增益的方法和装置
公开(公告)号：US09503040B1
公开(公告)日：2016-11-22
申请号：US13795742
申请日：2013-03-12
申请人： Maxlinear Asia Singapore PTE LTD
发明人： Paulius Mosinskis , Omkar Joshi
IPC分类号： H04B1/06 , H04B7/00 , H04B1/10 , H03G3/20
CPC分类号： H03G1/0094 , H03F3/193 , H03F3/24 , H03F3/72 , H03F2200/451 , H03F2203/7236 , H03G1/007 , H03G1/0088 , H03G1/04 , H03G3/3052 , H04B2001/0408
摘要： A method and electronic circuit for changing the gain of a radio frequency signal. The apparatus is an electronic circuit comprising one or more variable gain electronic elements, and one or more adjustable phase shifting elements. The method comprises the steps of receiving a radio frequency signal, varying the gain of the variable gain electronic element while the variable gain electronic element changes the amplitude of the radio frequency signal, and adjusting an adjustable phase shifting element to generate a reverse phase shift in the radio frequency signal in response to the associated phase shift from the step of varying the gain.
摘要翻译：一种改变射频信号增益的方法和电子电路。该装置是包括一个或多个可变增益电子元件和一个或多个可调节相移元件的电子电路。该方法包括以下步骤：在可变增益电子元件改变射频信号的幅度的同时，接收改变可变增益电子元件的增益的射频信号，以及调整可调相移元件以产生反相移所述射频信号响应于从改变增益的步骤的相关联的相移。

8. 发明授权

US08829990B2 Attenuating non-linear noise in an amplifier with alternating DC-offset correction 有权
标题翻译：在具有交流DC偏移校正的放大器中衰减非线性噪声
公开(公告)号：US08829990B2
公开(公告)日：2014-09-09
申请号：US13595141
申请日：2012-08-27
申请人： Douglas E. Heineman , Mark A. Alexander
发明人： Douglas E. Heineman , Mark A. Alexander
IPC分类号： H03F3/38 , H03F3/217 , H03F3/189 , H03F1/26 , H03K5/003
CPC分类号： H03G3/3026 , H03F1/26 , H03F3/185 , H03F3/189 , H03F3/2173 , H03F3/45 , H03F3/45179 , H03F2200/03 , H03G1/04 , H03K5/003
摘要： An amplifier may include two or more pulse-width modulators controlling respective sets of switches to produce an amplified version of a source signal. A positive DC-offset based on the source signal may be applied to the pulse-width modulator controlling one respective set of switches, and an equal value negative DC-offset may be applied to the pulse-width modulator controlling the other respective set of switches, to provide an effective offset between the respective points in time of the rising/falling edges of the different pulse-width modulated control signals. The addition of alternating positive and negative DC-offset values doesn't affect the output load, and doesn't degrade the signal. The DC-offsets may be added at a frequency selected to be beyond the signal baseband, and the value of the small input signal level may be determined using an RMS level comparator or similar measurement technique.
摘要翻译：放大器可以包括两个或更多个脉冲宽度调制器，其控制各组开关以产生源信号的放大版本。可以将基于源极信号的正DC偏移施加到控制一组相应开关的脉冲宽度调制器，并且可以将相等值的负DC偏移施加到控制另一组开关的脉宽调制器以提供不同脉冲宽度调制控制信号的上升/下降沿的各个时间点之间的有效偏移。交替的正和负DC偏移值的添加不会影响输出负载，也不会降低信号。可以以选择为超出信号基带的频率添加DC偏移，并且可以使用RMS电平比较器或类似的测量技术来确定小输入信号电平的值。

9. 发明授权

US08643434B2 Adjustable gain audio power amplifying circuit 失效
标题翻译：可调增益音频功率放大电路
公开(公告)号：US08643434B2
公开(公告)日：2014-02-04
申请号：US13494991
申请日：2012-06-13
申请人： Guojun Zhu
发明人： Guojun Zhu
IPC分类号： H03F3/45 , H03G3/20
CPC分类号： H03G1/04 , H03G3/3005
摘要： An adjustable gain audio power amplifying circuit includes an input unit, an audio amplifying unit connected to the input unit, a gain adjusting unit connected to the audio amplifying unit, a controlling unit connected to the gain adjusting unit, a comparing unit connected between the gain adjusting unit and the controlling unit and an output unit connected to the audio amplifying unit. The comparing unit compares an outputted signal of the output unit with a common-mode reference voltage, outputs a gain adjustment controlling signal and sends the gain adjustment controlling signal into the controlling unit. When the outputted signal equals the common-mode reference voltage, the gain adjustment controlling signal turns over and then the controlling unit detects the turnover and sends a received gain adjustment signal into the gain adjusting unit. Based on the received gain adjustment signal, the gain adjusting unit controls gains of the adjustable gain audio power amplifying circuit.
摘要翻译：可调增益音频功率放大电路包括输入单元，连接到输入单元的音频放大单元，连接到音频放大单元的增益调节单元，连接到增益调整单元的控制单元，连接在增益之间的比较单元调节单元和控制单元以及连接到音频放大单元的输出单元。比较单元将输出单元的输出信号与共模参考电压进行比较，输出增益调整控制信号，并将增益调整控制信号发送到控制单元。当输出信号等于共模参考电压时，增益调整控制信号转过来，然后控制单元检测到周转量，并将接收到的增益调整信号发送到增益调整单元。基于所接收的增益调整信号，增益调整单元控制可调节增益音频功率放大电路的增益。

10. 发明申请

US20140009226A1 DECOUPLING CIRCUITS FOR FILTERING A VOLTAGE SUPPLY OF MULTIPLE POWER AMPLIFIERS 有权
标题翻译：用于过滤多个功率放大器的电压供应器的解除电路
公开(公告)号：US20140009226A1
公开(公告)日：2014-01-09
申请号：US13674042
申请日：2012-11-11
申请人： R2 SEMICONDUCTOR, INC.
发明人： Cory Severson , Ravi Ramachandran , David Fisher
IPC分类号： H03F3/68 , H03F1/02 , H03G1/04
CPC分类号： H03F3/68 , H03F1/025 , H03F3/24 , H03G1/04
摘要： Embodiments for at least one method and apparatus of a voltage supply are disclosed. One voltage supply apparatus includes a voltage supply, a plurality of power amplifier (PA) decoupling circuits, and a plurality of power amplifiers. Each PA decoupling circuit is connected to the voltage supply and provides a filtered voltage supply to a corresponding one of the plurality power amplifiers. Each PA decoupling circuit configured to suppress noise of the provided filtered voltage supply below a threshold at one or more selected frequencies, wherein the suppression is provided by the PA decoupling circuit operating in conjunction with at least one other of the plurality of PA decoupling circuits.
摘要翻译：公开了至少一种电压源的方法和装置的实施例。一个电压供给装置包括电压源，多个功率放大器（PA）去耦电路和多个功率放大器。每个PA去耦电路连接到电压源，并且向多个功率放大器中的相应一个放大器提供经滤波的电压源。每个PA去耦电路被配置为在一个或多个所选择的频率处抑制所提供的滤波电压电源的噪声低于阈值，其中抑制由PA去耦电路提供，与多个PA去耦电路中的至少另一个耦合。

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