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11.发明授权公开(公告)号：US09490826B1
公开(公告)日：2016-11-08
申请号：US14829723
申请日：2015-08-19
Applicant: QUALCOMM Incorporated
Inventor： Cheng-Han Wang , Keplin Victor Johansen , Jeongsik Yang , Justin Phelps Black
Abstract: Methods and apparatus for synchronizing dividers in different LO paths using pulse swallowing. One example apparatus generally includes a first path having a first frequency divider configured to generate a first divided signal from a first periodic signal; a second path having a second frequency divider configured to generate a second divided signal from a second periodic signal; a phase detector configured to compare phases of a first sensing signal based on the first divided signal and a second sensing signal based on the second divided signal and to generate a first trigger signal if the first and second sensing signals are out-of-phase; and a first pulse suppressor configured to suppress a pulse of the first periodic signal for at least one cycle in response to the first trigger signal to adjust a phase of the first divided signal.
Abstract translation: 使用脉冲吞咽在不同LO路径中同步分频器的方法和装置。 一个示例性装置通常包括具有第一分频器的第一路径，其被配置为从第一周期性信号产生第一分频信号; 第二路径，具有被配置为从第二周期信号产生第二分频信号的第二分频器; 相位检测器，被配置为基于第一分频信号和第二感测信号基于第二分频信号比较第一感测信号的相位，并且如果第一和第二感测信号是异相的，则产生第一触发信号; 以及第一脉冲抑制器，被配置为响应于所述第一触发信号来抑制所述第一周期信号的脉冲至少一个周期，以调整所述第一分频信号的相位。
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公开(公告)号：US20210258023A1
公开(公告)日：2021-08-19
申请号：US17179264
申请日：2021-02-18
Applicant: Qualcomm Incorporated
Inventor： Sean Joel Lyn , Cheng-Han Wang , Hye Jin Song , Sang-Oh Lee
Abstract: Apparatuses and methods are disclosed regarding a multiband transmitter. In an example aspect, an apparatus for processing signals for wireless transmission includes a wireless interface device. The wireless interface device includes an upconverter, a tunable filter, and a driver amplifier. The upconverter has an output and is configured to upconvert a baseband frequency to a radio frequency based on a local oscillator signal. The tunable filter has an input and an output; the input of the tunable filter is coupled to the output of the upconverter. The driver amplifier has an input; the input of the driver amplifier is coupled to the output of the tunable filter.
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公开(公告)号：US20180083763A1
公开(公告)日：2018-03-22
申请号：US15273015
申请日：2016-09-22
Applicant: QUALCOMM Incorporated
Inventor： Justin Black , Cheng-Han Wang , Jeongsik Yang
CPC classification number: H04L7/0008 , H03K19/21 , H03L7/00 , H03L7/0812 , H03L7/143 , H03L7/22 , H04W52/02
Abstract: An apparatus and a method are disclosed for synchronizing clock signals distributed within a wireless device. In some embodiments, a local oscillator (LO) clock signal is buffered and distributed to two or more transceivers within the wireless device. Each transceiver may include a configurable clock divider to divide the distributed LO clock signal and generate an output clock signal. A phase detector compares output clock signals from each of the configurable clock dividers and generates an output signal in accordance with a determined phase difference. The phase detector output signal may cause at least one of the configurable clock dividers to modify its respective output clock signal, and thereby synchronize output clock signals between different configurable clock dividers. In some embodiments, a clock signal from a configurable clock divider may be modified (shifted) by approximately 90 or 180 degrees.
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公开(公告)号：US20160211804A1
公开(公告)日：2016-07-21
申请号：US14598612
申请日：2015-01-16
Applicant: QUALCOMM Incorporated
Inventor： Shu-Hsien Liao , Feipeng Wang , Cheng-Han Wang
CPC classification number: H03F1/0205 , H03F1/0266 , H03F1/223 , H03F1/3205 , H03F3/19 , H03F3/21 , H03F3/245 , H03F2200/18 , H03F2200/294 , H03F2200/451 , H03F2200/555 , H03F2201/3209
Abstract: A power amplifier bias circuit having high dynamic range and low memory is disclosed. In an exemplary embodiment, an apparatus includes an output stage configured to generate a biased RF signal based on a first DC signal and a filtered signal. The apparatus also includes a low pass filter configured to filter the biased RF signal to generate the filtered signal.
Abstract translation: 公开了具有高动态范围和低存储器的功率放大器偏置电路。 在示例性实施例中，一种装置包括：输出级，被配置为基于第一DC信号和滤波信号产生偏置的RF信号。 该装置还包括低通滤波器，其配置成对偏置的RF信号进行滤波以产生经滤波的信号。
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公开(公告)号：US09391651B1
公开(公告)日：2016-07-12
申请号：US14680756
申请日：2015-04-07
Applicant: QUALCOMM Incorporated
Inventor： Saihua Lin , Chao Lu , Cheng-Han Wang
IPC: H04B1/04
CPC classification number: H04B1/0475 , H03F1/223 , H03F1/3205 , H03F1/3223 , H03F3/193 , H03F3/211 , H03F3/24 , H03F3/245 , H03F2200/336 , H03F2200/451 , H04B2001/0408
Abstract: A method and apparatus are disclosed for a configurable amplifier. When operating in a first operating mode, the configurable amplifier may amplify a communication signal and may cancel or attenuate a second harmonic component associated with the communication signal. When operating in a second operating mode, the configurable amplifier may amplify the communication signal without cancelling or attenuating the second harmonic component associated with the communication signal.
Abstract translation: 公开了一种用于可配置放大器的方法和装置。 当在第一操作模式下操作时，可配置放大器可以放大通信信号，并且可以取消或衰减与通信信号相关联的二次谐波分量。 当在第二操作模式下操作时，可配置放大器可放大通信信号，而不消除或衰减与通信信号相关联的二次谐波分量。
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Patent Agency Ranking
公开(公告)号：US08874063B2
公开(公告)日：2014-10-28
申请号：US13791048
申请日：2013-03-08
Applicant: QUALCOMM Incorporated
Inventor： Jin-Su Ko , Hong Sun Kim , Liang Zhao , Cheng-Han Wang , Dominic Gerard Farmer
CPC classification number: H04B1/16 , H04B1/005 , H04B1/0064 , H04B1/0075
Abstract: Methods and circuits can down convert at least a first RF signal on a first path in a first frequency band to provide a first IF signal. A second RF signal on second path in a second frequency band can be down converted to provide a second IF signal. The first IF signal and the second IF signal are interspersed in the frequency domain, and the first frequency band is different from the second frequency band. A combiner can combine at least part of the first IF signal and the second IF signal to provide a combined signal on an output signal path for reception by a digital processing circuit. The first IF signal or second IF signal can be a Zero IF (ZIF), very low IF (VLIF), or Low IF (LIF) signal.
Abstract translation: 方法和电路可以在第一频带中的第一路径上的至少第一RF信号下变频以提供第一IF信号。 在第二频带中的第二路径上的第二RF信号可被下变频以提供第二IF信号。 第一IF信号和第二IF信号分散在频域中，并且第一频带不同于第二频带。 组合器可以组合第一IF信号和第二IF信号的至少一部分，以在输出信号路径上提供组合信号以供数字处理电路接收。 第一IF信号或第二IF信号可以是零中频（ZIF），极低IF（VLIF）或低IF（LIF）信号。
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17.发明申请CONCURRENT MULTI-SYSTEM SATELLITE NAVIGATION RECEIVER WITH REAL SIGNALING OUTPUT 有权具有真正信号输出的多电平多系统卫星导航接收器公开(公告)号：US20140266886A1
公开(公告)日：2014-09-18
申请号：US13841698
申请日：2013-03-15
Applicant: QUALCOMM INCORPORATED
Inventor： Cheng-Han Wang , Hong Sun Kim , Liang Zhao , Jin-Su Ko
IPC: G01S19/33
CPC classification number: G01S19/33 , G01S19/37 , H04B1/0067
Abstract: A global navigation satellite system (GNSS) receiver includes at least one GNSS antenna configured to receive input signaling from at least a first GNSS source and a second GNSS source; an in-phase/quadrature (I/Q) mixer coupled to the at least one GNSS antenna and configured to process the input signaling to obtain complex intermediate signaling; a first complex filter coupled to the I/Q mixer and configured to filter the complex intermediate signaling with respect to a first frequency range to obtain first real output signaling; a second complex filter coupled to the I/Q mixer and configured to filter the complex intermediate signaling with respect to a second frequency range to obtain second real output signaling; and a signal combiner coupled to the first and second complex filters and configured to generate combined real output signaling by combining the first real output signaling and the second real output signaling.
Abstract translation: 全球导航卫星系统（GNSS）接收机包括至少一个GNSS天线，被配置为从至少第一GNSS源和第二GNSS源接收输入信令; 耦合到所述至少一个GNSS天线并被配置为处理所述输入信令以获得复杂的中间信令的同相/正交（I / Q）混合器; 耦合到所述I / Q混频器并且被配置为相对于第一频率范围过滤所述复合中间信令以获得第一实际输出信令的第一复滤波器; 耦合到所述I / Q混频器并被配置为相对于第二频率范围过滤所述复合中间信令以获得第二实际输出信号的第二复滤波器; 以及信号组合器，其耦合到所述第一和第二复数滤波器并且被配置为通过组合所述第一实际输出信令和所述第二实际输出信令来产生组合的实际输出信令。
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公开(公告)号：US11616517B2
公开(公告)日：2023-03-28
申请号：US17179264
申请日：2021-02-18
Applicant: Qualcomm Incorporated
Inventor： Sean Joel Lyn , Cheng-Han Wang , Hye Jin Song , Sang-Oh Lee
Abstract: Apparatuses and methods are disclosed regarding a multiband transmitter. In an example aspect, an apparatus for processing signals for wireless transmission includes a wireless interface device. The wireless interface device includes an upconverter, a tunable filter, and a driver amplifier. The upconverter has an output and is configured to upconvert a baseband frequency to a radio frequency based on a local oscillator signal. The tunable filter has an input and an output; the input of the tunable filter is coupled to the output of the upconverter. The driver amplifier has an input; the input of the driver amplifier is coupled to the output of the tunable filter.
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公开(公告)号：US10177873B1
公开(公告)日：2019-01-08
申请号：US15971609
申请日：2018-05-04
Applicant: QUALCOMM Incorporated
Inventor： Yi Zeng , Hong Sun Kim , Cheng-Han Wang
Abstract: A radio frequency (RF) receiver, for example a satellite positioning system receiver, can be configured to use a single phase locked loop for generating an oscillator signal to perform downconversion of signals in two different frequency bands using two or more local oscillators. A first RF signal portion includes a first signal band and undergoes double downconversion using a first mixer and a second mixer, while a second RF signal portion includes a second signal band and undergoes single downconversion using a single mixer. A controller is configured to determine a first oscillator divider value and a second oscillator divider value to avoid a jammer frequency and frequency dividers are used to generate the two or more local oscillators.
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公开(公告)号：US09941842B2
公开(公告)日：2018-04-10
申请号：US14598612
申请日：2015-01-16
Applicant: QUALCOMM Incorporated
Inventor： Shu-Hsien Liao , Feipeng Wang , Cheng-Han Wang
CPC classification number: H03F1/0205 , H03F1/0266 , H03F1/223 , H03F1/3205 , H03F3/19 , H03F3/21 , H03F3/245 , H03F2200/18 , H03F2200/294 , H03F2200/451 , H03F2200/555 , H03F2201/3209
Abstract: A power amplifier bias circuit having high dynamic range and low memory is disclosed. In an exemplary embodiment, an apparatus includes an output stage configured to generate a biased RF signal based on a first DC signal and a filtered signal. The apparatus also includes a low pass filter configured to filter the biased RF signal to generate the filtered signal.
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