公开(公告)号：US12081243B2

公开(公告)日：2024-09-03

申请号：US13366992

申请日：2012-02-06

申请人： Aristotele Hadjichristos ,  Gurkanwal Singh Sahota

发明人： Aristotele Hadjichristos ,  Gurkanwal Singh Sahota

IPC分类号： H04B1/00 ,  H03F1/02 ,  H03F1/22 ,  H03F1/56 ,  H03F3/21 ,  H03F3/45 ,  H03F3/68 ,  H03F3/72 ,  H04B1/403

CPC分类号： H04B1/0057 ,  H03F1/0277 ,  H03F1/223 ,  H03F1/56 ,  H03F3/211 ,  H03F3/45179 ,  H03F3/68 ,  H03F3/72 ,  H04B1/406 ,  H03F2200/222 ,  H03F2200/294 ,  H03F2200/429 ,  H03F2203/7203 ,  H03F2203/7236

摘要： Multiple low noise amplifiers (LNAs) with combined outputs are disclosed. In an exemplary design, an apparatus includes a front-end module and an integrated circuit (IC). The front-end module includes a plurality of LNAs having outputs that are combined. The IC includes receive circuits coupled to the plurality of LNAs via a single interconnection. In an exemplary design, each of the plurality of LNAs may be enabled or disabled via a respective control signal for that LNA. The front-end module may also include receive filters coupled to the plurality of LNAs and a switchplexer coupled to the receive filters. The front-end module may further include at least one power amplifier, and the IC may further include transmit circuits coupled to the at least one power amplifier.

公开(公告)号：US09991855B2

公开(公告)日：2018-06-05

申请号：US15427178

申请日：2017-02-08

申请人： RENESAS ELECTRONICS CORPORATION

发明人： Masakazu Mizokami

IPC分类号： H04M1/00 ,  H03F3/19 ,  H03F1/56 ,  H03F3/21 ,  H03F3/72 ,  H04B1/16

CPC分类号： H03F3/19 ,  H03F1/565 ,  H03F3/211 ,  H03F3/45188 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/294 ,  H03F2200/336 ,  H03F2200/429 ,  H03F2200/451 ,  H03F2200/537 ,  H03F2203/21109 ,  H03F2203/21112 ,  H03F2203/7209 ,  H04B1/16

摘要： In a semiconductor device, received signals of different frequency bands are input selectively to low noise amplifiers. A plurality of primary inductors are coupled between differential output nodes of the respective low noise amplifiers. A secondary inductor is provided commonly for the primary inductors, and magnetically coupled to the primary inductors. A demodulator converts a received signal transmitted from one of the primary inductors to the secondary inductor by electromagnetic induction, into a signal of a low frequency.

公开(公告)号：US09859846B2

公开(公告)日：2018-01-02

申请号：US15372826

申请日：2016-12-08

申请人： SKYWORKS SOLUTIONS, INC.

发明人： Sabah Khesbak

IPC分类号： H03F3/68 ,  H03F1/02 ,  H03F1/56 ,  H03F3/19 ,  H03F3/24 ,  H03F3/72 ,  H03F3/193 ,  H03F3/21 ,  H03F3/195 ,  H03F1/30 ,  H03F1/07

CPC分类号： H03F1/0222 ,  H03F1/0211 ,  H03F1/0227 ,  H03F1/0277 ,  H03F1/0288 ,  H03F1/07 ,  H03F1/305 ,  H03F1/56 ,  H03F3/19 ,  H03F3/193 ,  H03F3/195 ,  H03F3/211 ,  H03F3/245 ,  H03F3/68 ,  H03F3/72 ,  H03F2200/102 ,  H03F2200/18 ,  H03F2200/222 ,  H03F2200/318 ,  H03F2200/387 ,  H03F2200/411 ,  H03F2200/429 ,  H03F2200/432 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/516 ,  H03F2203/21106 ,  H03F2203/7209 ,  H03F2203/7221 ,  H03F2203/7236

摘要： Apparatus and methods for capacitive load reduction are disclosed. In one embodiment, a mobile device includes a supply control circuit that controls a voltage of a supply network, a plurality of radio frequency circuits that receive power from the supply network and are selectively enabled by a plurality of enable signals, a plurality of switchable capacitors electrically connected to the supply network, a plurality of field-effect transistors operatively associated with the plurality of switchable capacitors, and a bias control circuit that generates a plurality of control signals that bias the plurality of field-effect transistors based on a state of the plurality of enable signals. Each of the plurality of control signals are operable to selectively bias a corresponding one of the plurality of field-effect transistors in a cutoff mode to provide high impedance or as a dampening resistor to suppress oscillations.

公开(公告)号：US20170311077A1

公开(公告)日：2017-10-26

申请号：US15641271

申请日：2017-07-04

申请人： AMX, LLC

发明人： Fawad Nackvi

IPC分类号： H04R3/04 ,  H03F1/06 ,  H03F3/181 ,  H03F3/189 ,  H03F3/66 ,  H03G5/16 ,  H04R1/20 ,  H04R1/22 ,  H04R1/24 ,  H04R1/26 ,  H04R25/00 ,  H04R17/10 ,  H04R15/02 ,  H04R11/14 ,  H04R9/18 ,  H04S7/00 ,  A61F2/76

CPC分类号： H04R3/04 ,  A61F2002/765 ,  H03F1/06 ,  H03F3/181 ,  H03F3/189 ,  H03F3/66 ,  H03F2200/333 ,  H03F2200/348 ,  H03F2200/429 ,  H03F2200/451 ,  H03F2203/45264 ,  H03G5/165 ,  H04R1/20 ,  H04R1/22 ,  H04R1/227 ,  H04R1/24 ,  H04R1/26 ,  H04R9/18 ,  H04R11/14 ,  H04R15/02 ,  H04R17/10 ,  H04R25/353 ,  H04R25/48 ,  H04R25/558 ,  H04R2201/028 ,  H04R2205/021 ,  H04R2205/026 ,  H04R2227/005 ,  H04S7/307 ,  H04S2400/07

摘要： Disclosed are an apparatus and method of processing an audio signal to optimize audio for a room environment. One example method of operation may include recording the audio signal generated within a particular room environment and processing the audio signal to create an original frequency response based on the audio signal. The method may also include identifying a target sub-region of the frequency response which has a predetermined area percentage of a total area under a curve generated by the frequency response, determining whether the target sub-region is a narrow energy region, creating a filter to adjust the frequency response, and applying the filter to the audio signal.

公开(公告)号：US20170264250A1

公开(公告)日：2017-09-14

申请号：US15068179

申请日：2016-03-11

申请人： Intel Corporation

发明人： Jong Seok Park ,  Yanjie J. Wang ,  Stefano Pellerano ,  Christopher D. Hull

IPC分类号： H03F1/32 ,  H03F3/193 ,  H04L27/34 ,  H03F3/21 ,  H03F3/68 ,  H04B1/04 ,  H03F1/56 ,  H03F3/24

CPC分类号： H03F1/3205 ,  H03F1/0261 ,  H03F1/0277 ,  H03F1/223 ,  H03F1/565 ,  H03F3/189 ,  H03F3/193 ,  H03F3/211 ,  H03F3/24 ,  H03F3/245 ,  H03F3/45188 ,  H03F3/68 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/162 ,  H03F2200/18 ,  H03F2200/387 ,  H03F2200/423 ,  H03F2200/429 ,  H03F2200/451 ,  H03F2200/541 ,  H03F2201/3203 ,  H03F2203/21139 ,  H03F2203/21142 ,  H03F2203/21178 ,  H03F2203/7206 ,  H03F2203/7209 ,  H03F2203/7236 ,  H04B1/04 ,  H04B2001/0408 ,  H04L27/34

摘要： A communication device includes a power amplifier that generates power signals according to one or more operating bands of communication data, with the amplitude being driven and generated in output stages of the power amplifier. The final stage can include an output passive network that suppresses suppress an amplitude modulation-to-phase modulation (AM-PM) distortion. During a back-off power mode a bias of a capacitive unit of the output power network component can be adjusted to minimize an overall capacitance variation. A output passive network can further generate a flat-phase response between dual resonances of operation.

公开(公告)号：US09716471B2

公开(公告)日：2017-07-25

申请号：US14867899

申请日：2015-09-28

申请人： Raytheon Company

发明人： Anthony M. Petrucelli ,  Mark A. Talcott ,  Samuel D. Tonomura ,  Cynthia Y. Hang ,  John Fraschilla

IPC分类号： H03F3/68 ,  H03F1/02 ,  H03F3/19 ,  H03F1/56 ,  H03F3/21 ,  H03F3/72 ,  H04B1/00 ,  H04B1/18

CPC分类号： H03F1/0205 ,  H03F1/56 ,  H03F3/19 ,  H03F3/211 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/318 ,  H03F2200/405 ,  H03F2200/429 ,  H03F2200/451 ,  H03F2200/555 ,  H03F2203/7209 ,  H04B1/005 ,  H04B1/18

摘要： A quasi-switched, multi-band, high-power amplifier includes an input matching network, a low band path, a high band path, and an output matching network. The input matching network includes a single input port that is configured to receive an input signal. The input signal includes at least one tone within a specified frequency band. The low band path is configured, when the specified frequency band is a low frequency band, to amplify the input signal to generate a low band amplified signal. The high band path is configured, when the specified frequency band is a high frequency band, to amplify the input signal to generate a high band amplified signal. The output matching network includes a single output port and is configured to filter at least one of the low band amplified signal and the high band amplified signal into a load through the single output port.

公开(公告)号：US09641138B2

公开(公告)日：2017-05-02

申请号：US14682818

申请日：2015-04-09

申请人： ANALOG DEVICES, INC.

发明人： Ning Zhu

IPC分类号： H03F3/191 ,  H03F3/193 ,  H03F1/42 ,  H03F1/02 ,  H03F3/45 ,  H03F1/08 ,  H03F1/32 ,  H03F3/189

CPC分类号： H03F3/193 ,  H03F1/0205 ,  H03F1/08 ,  H03F1/086 ,  H03F1/3223 ,  H03F1/42 ,  H03F3/189 ,  H03F3/45179 ,  H03F2200/429 ,  H03F2200/451 ,  H03F2203/45154

摘要： An exemplary multipath feedforward amplifier includes a plurality of amplification stages configured to form at least partially distinct amplification paths extending from an input terminal to an output terminal, each amplification path defined by a respective subset of the plurality of amplification stages, wherein at least one amplification stage is a band pass resonator. In various implementations, multipath feedforward amplifier can maximize gain at a frequency of interest by having an amplification path that cascades band pass resonators. In various implementations, the plurality of amplification paths are configured to optimize gain at a center frequency ranging from about 2 GHz to about 3 GHz.

公开(公告)号：US09553551B1

公开(公告)日：2017-01-24

申请号：US14276400

申请日：2014-05-13

申请人： ANADIGICS, INC.

发明人： Robert Bayruns ,  Tim Gittemeier

IPC分类号： H03F3/04 ,  H03F3/19 ,  H03F3/21

CPC分类号： H03F3/193 ,  H03F1/3205 ,  H03F1/483 ,  H03F3/1935 ,  H03F3/21 ,  H03F2200/102 ,  H03F2200/351 ,  H03F2200/36 ,  H03F2200/429 ,  H03F2200/451

摘要： The present invention breaks up the frequency bands which can be filtered by a simple low-loss band-pass or low pass filter. The second harmonic frequency is reduced by use of a non-linear clipper element which controls the driving waveform symmetry and can reduce the harmonics by as much as 5-15 db which makes the filter much simpler and allows the amplifier to remain wide-band. The output waveform from the amplifier is symmetrical or nearly symmetrical.

摘要翻译： 本发明可以分解通过简单的低损耗带通或低通滤波器滤波的频带。 通过使用控制驱动波形对称性的非线性限幅元件来减少二次谐波频率，并且可以将谐波减少多达5-15db，这使得滤波器更简单并且允许放大器保持宽带。 来自放大器的输出波形是对称的或近似对称的。

公开(公告)号：US09515622B2

公开(公告)日：2016-12-06

申请号：US14581890

申请日：2014-12-23

申请人： Nokia Corporation

发明人： Markus Nentwig ,  Mikko Kaltiokallio

IPC分类号： H03F3/68 ,  H03F3/21 ,  H03F3/19 ,  H03F1/02 ,  H03F3/195 ,  H03F3/24 ,  H03F3/72

CPC分类号： H03F3/211 ,  H03F1/0222 ,  H03F1/0266 ,  H03F1/0277 ,  H03F3/19 ,  H03F3/195 ,  H03F3/245 ,  H03F3/68 ,  H03F3/72 ,  H03F2200/03 ,  H03F2200/102 ,  H03F2200/105 ,  H03F2200/111 ,  H03F2200/27 ,  H03F2200/411 ,  H03F2200/429 ,  H03F2200/451 ,  H03F2200/507 ,  H03F2203/21196 ,  H03F2203/7206 ,  H03F2203/7209 ,  H03F2203/7227 ,  H03F2203/7236

摘要： In some example embodiments, there is provided an apparatus. The apparatus may include a direct current voltage source and/or an alternating current voltage source to track a power envelope of a radio frequency signal. The apparatus may further include first and second power amplifiers with bias voltage inputs and a supply voltage inputs, and a switch matrix. The first input may be coupled to the direct current voltage source, the second input may be coupled to the alternating current voltage source. The outputs may be coupled to the bias and supply inputs to the power amplifiers. The switch matrix may enable activation of the first power amplifier, the second power amplifier, both the first and second power amplifiers, or neither power amplifier.

摘要翻译： 在一些示例性实施例中，提供了一种装置。 该装置可以包括直流电压源和/或交流电压源以跟踪射频信号的功率包络。 该装置还可以包括具有偏置电压输入和电源电压输入的第一和第二功率放大器以及开关矩阵。 第一输入可以耦合到直流电压源，第二输入可以耦合到交流电压源。 输出可以耦合到功率放大器的偏置和电源输入。 开关矩阵可以使得能够激活第一功率放大器，第二功率放大器，第一和第二功率放大器，或者两个功率放大器。

公开(公告)号：US09503026B2

公开(公告)日：2016-11-22

申请号：US14490488

申请日：2014-09-18

申请人： SKYWORKS SOLUTIONS, INC.

发明人： Lui Lam ,  Mark M. Doherty

IPC分类号： H03F3/21 ,  H03F3/19 ,  H03F1/02 ,  H03F1/56 ,  H03F3/195 ,  H03F3/217 ,  H03F3/72

CPC分类号： H03F1/0222 ,  H03F1/0266 ,  H03F1/0277 ,  H03F1/56 ,  H03F3/195 ,  H03F3/217 ,  H03F3/245 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/165 ,  H03F2200/336 ,  H03F2200/351 ,  H03F2200/387 ,  H03F2200/429 ,  H03F2200/451 ,  H03F2200/555 ,  H03F2203/7209 ,  H03F2203/7221 ,  H03F2203/7236 ,  H04B1/04

摘要： Aspects of this disclosure relate to dynamic error vector magnitude (DEVM) compensation. In one embodiment, an apparatus includes an amplifier, a low pass filter, and a bias circuit. The amplifier, such as a power amplifier, can amplify an input signal. The low pass filter, such as an integrator, can generate a correction signal based at least partly on an indication of a duty cycle of the amplifier. The indication of the duty cycle of the amplifier can be an enable signal for the amplifier, for example. The bias circuit can generate a bias signal based at least partly on the correction signal and provide the bias signal to the amplifier to bias the amplifier.

摘要翻译： 本公开的方面涉及动态误差向量幅度（DEVM）补偿。 在一个实施例中，一种装置包括放大器，低通滤波器和偏置电路。 诸如功率放大器的放大器可以放大输入信号。 低通滤波器，例如积分器，可以至少部分地基于放大器的占空比的指示来产生校正信号。 例如，放大器的占空比的指示可以是放大器的使能信号。 偏置电路可以至少部分地基于校正信号产生偏置信号，并将偏置信号提供给放大器以偏置放大器。