公开(公告)号：US20180083574A1

公开(公告)日：2018-03-22

申请号：US15272124

申请日：2016-09-21

Applicant: QUALCOMM Incorporated

Inventor： Kiyong Choi ,  Yi Zeng ,  Hong Sun Kim ,  Sasha Vujcic ,  Chirag Dipak Patel ,  Aleksandar Miodrag Tasic ,  Timothy Donald Gathman ,  Wu-Hsin Chen ,  Klaas van Zalinge

IPC: H03D7/14 ,  H03F3/193 ,  H03F3/21 ,  H03F3/45 ,  H03G3/30

CPC classification number: H03D7/1458 ,  H03D7/1441 ,  H03D7/1466 ,  H03F3/193 ,  H03F3/21 ,  H03F3/265 ,  H03F3/72 ,  H03F2200/09 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2200/537 ,  H03F2200/541 ,  H03G3/3052 ,  H04B1/109 ,  H04W52/0209

Abstract: A method and apparatus are disclosed for a configurable mixer capable of operating in a linear, a legacy, and a low-power mode. In the linear mode, the configurable mixer is configured to operate as a double-balanced mixer to multiply a first differential signal by a second differential signal. In the legacy mode, the configurable mixer is configured to as a double-balanced mixer to multiply a differential signal by a single-ended signal. In the low-power mode, the configurable mixer is configured to operate as a single-balanced mixer to multiply a differential signal by a single-ended signal. The operating mode of the configurable mixer may be based, at least in part, on a mode control signal. In some embodiments, the configurable mixer may be included in an analog front end of a wireless communication device.

公开(公告)号：US09401680B2

公开(公告)日：2016-07-26

申请号：US14158318

申请日：2014-01-17

Applicant: QUALCOMM Incorporated

Inventor： Jungdong Park ,  Cheng-Han Wang ,  Hong Sun Kim ,  Mohammad Bagher Vahid Far

IPC: H03F3/04 ,  H03F1/30 ,  H03F3/193 ,  H03F3/195 ,  H03F3/24

CPC classification number: H03F1/301 ,  H03F1/30 ,  H03F3/193 ,  H03F3/195 ,  H03F3/245 ,  H03F2200/18 ,  H03F2200/294 ,  H03F2200/411 ,  H03F2200/447 ,  H03F2200/451

Abstract: An apparatus includes a first bias circuit configured to generate a first current that varies with temperature according to a first slope. The apparatus also includes a second bias circuit configured to generate a second current that varies with temperature according to a second slope. The apparatus further includes a low noise amplifier including a transconductance stage that is responsive to an output of the first bias circuit. The apparatus also includes a load coupled to an output of the low noise amplifier and responsive to an output of the second bias circuit.

Abstract translation: 一种装置包括：第一偏置电路，被配置为产生根据第一斜率随温度变化的第一电流。 该装置还包括第二偏置电路，其被配置为产生根据第二斜率随温度变化的第二电流。 该装置还包括低噪声放大器，其包括响应于第一偏置电路的输出的跨导级。 该装置还包括负载耦合到低噪声放大器的输出并响应于第二偏置电路的输出。

公开(公告)号：US20150198718A1

公开(公告)日：2015-07-16

申请号：US13797033

申请日：2013-03-12

Applicant: QUALCOMM Incorporated

Inventor： Alireza Khalili ,  Hong Sun Kim ,  Jin-Su KO

IPC: G01S19/32 ,  H04W52/02 ,  G01S19/21

CPC classification number: G01S19/32 ,  G01S19/21 ,  G01S19/33 ,  H04W52/0216 ,  Y02D70/122 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164

Abstract: Systems, apparatus and methods in a mobile device to multiplex two global navigation satellite system (GNSS) signals on a single hardware receiver chain are presented. The GNSS signals may come from a common GNSS system on two bands of two different GNSS systems overlapping on a common band. A duty cycle of the GNSS signals may be based on a harmonic being within one of the first band and the second band. The duty cycle may be based on signal quality, such as indicating a jammed or non jammed signal. The duty cycle may be of unequal proportions and less than 100% such that the receiver chain is idle for a percentage of time.

Abstract translation: 提出了在单个硬件接收机链上复用两个全球导航卫星系统（GNSS）信号的移动设备中的系统，装置和方法。 GNSS信号可以来自在公共频带上重叠的两个不同GNSS系统的两个频带上的公共GNSS系统。 GNSS信号的占空比可以基于在第一频带和第二频带之一内的谐波。 占空比可以基于信号质量，例如指示卡住的或非卡住的信号。 占空比可能不等于100％，使接收机链空闲一段时间。

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

IPC: G01S19/32 ,  H04K3/00 ,  H03F3/19 ,  H04B1/30 ,  H03H11/34 ,  H03D7/16

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.

公开(公告)号：US09559735B2

公开(公告)日：2017-01-31

申请号：US14610888

申请日：2015-01-30

Applicant: QUALCOMM Incorporated

Inventor： Jungdong Park ,  Hong Sun Kim

IPC: H04B1/10 ,  H03H7/01 ,  H03F3/19 ,  H04B1/16 ,  H03H7/075

CPC classification number: H04B1/1081 ,  H03F3/19 ,  H03F2200/294 ,  H03F2200/451 ,  H03H7/0153 ,  H03H7/075 ,  H04B1/16

Abstract: The present disclosure includes switching resonant filter circuits and methods. In one embodiment, a circuit includes a plurality of resonant switching circuits arranged in a three (3) or four (4) element PI network. In one embodiment, an undesired signal frequency is applied to two resonant switching circuits and a carrier frequency of an RF signal is applied to the other two resonant switching networks so that the network attenuates the undesired signal frequency and passes the carrier frequency. In another embodiment, the resonant switching circuits are configurable to shift a peak impedance so that undesired signals may be attenuated.

Abstract translation: 本公开包括开关谐振滤波器电路和方法。 在一个实施例中，电路包括布置在三（3）或四（4）个元素PI网络中的多个谐振开关电路。 在一个实施例中，不期望的信号频率被施加到两个谐振开关电路，并且RF信号的载波频率被施加到另外两个谐振开关网络，使得网络衰减不期望的信号频率并且传递载波频率。 在另一个实施例中，谐振开关电路可配置为移动峰值阻抗，使得不期望的信号可能被衰减。

公开(公告)号：US09379929B2

公开(公告)日：2016-06-28

申请号：US14220425

申请日：2014-03-20

Applicant: QUALCOMM Incorporated

Inventor： Cheng-Han Wang ,  I-Liang Lin ,  Liang Zhao ,  Hong Sun Kim ,  Yi Zeng

IPC: H04B1/10 ,  H04L27/34 ,  H04L27/36 ,  H03D3/00

CPC classification number: H04L27/3405 ,  H03C2200/0041 ,  H03D3/008 ,  H03D3/009 ,  H03D2200/0045 ,  H04L27/364

Abstract: A circuit for performing a residual side band calibration is described. The circuit generally includes a phase imbalance detection circuit. The phase imbalance detection circuit may include a limiter. The phase imbalance detection circuit may be independent of gain imbalance. The circuit may also include a phase imbalance correction circuit. The phase imbalance detection circuit may control coupling between an inphase path and a quadrature path.

Abstract translation: 描述用于执行残余边带校准的电路。 该电路通常包括相位不平衡检测电路。 相位不平衡检测电路可以包括限幅器。 相位不平衡检测电路可以与增益不平衡无关。 电路还可以包括相位不平衡校正电路。 相位不平衡检测电路可以控制同相路径和正交路径之间的耦合。

公开(公告)号：US20150207466A1

公开(公告)日：2015-07-23

申请号：US14158318

申请日：2014-01-17

Applicant: QUALCOMM Incorporated

Inventor： Jungdong Park ,  Cheng-Han Wang ,  Hong Sun Kim ,  Mohammad Bagher Vahid Far

IPC: H03F1/30 ,  H03F3/193

CPC classification number: H03F1/301 ,  H03F1/30 ,  H03F3/193 ,  H03F3/195 ,  H03F3/245 ,  H03F2200/18 ,  H03F2200/294 ,  H03F2200/411 ,  H03F2200/447 ,  H03F2200/451

Abstract: An apparatus includes a first bias circuit configured to generate a first current that varies with temperature according to a first slope. The apparatus also includes a second bias circuit configured to generate a second current that varies with temperature according to a second slope. The apparatus further includes a low noise amplifier including a transconductance stage that is responsive to an output of the first bias circuit. The apparatus also includes a load coupled to an output of the low noise amplifier and responsive to an output of the second bias circuit.

Abstract translation: 一种装置包括：第一偏置电路，被配置为产生根据第一斜率随温度变化的第一电流。 该装置还包括第二偏置电路，其被配置为产生根据第二斜率随温度变化的第二电流。 该装置还包括低噪声放大器，其包括响应于第一偏置电路的输出的跨导级。 该装置还包括负载耦合到低噪声放大器的输出并响应于第二偏置电路的输出。