公开(公告)号：JP2013062845A

公开(公告)日：2013-04-04

申请号：JP2012242672

申请日：2012-11-02

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： SUN BO ,  GURKANWAL SINGH SAHOTA ,  WU YUE

IPC: H03L7/099

CPC classification number: H03L7/197 ,  H03J7/065 ,  H03L1/00 ,  H03L7/0802 ,  H03L7/0898 ,  H03L7/093 ,  H03L7/107 ,  H03L2207/06

Abstract: PROBLEM TO BE SOLVED: To provide a local oscillator in radio communication equipment.SOLUTION: A local oscillator includes a phase-locked loop. The phase-locked loop includes a voltage controlled oscillator 23 and a novel VCO control circuit 27. The VCO control circuit may be programmable and configurable. In one example, an instruction is received onto the VCO control circuit to change the power state of the VCO. The instruction is issued by other circuitry in response to a detected change in radio channel conditions (for example, a change in a signal-to-noise determination) in a cellular telephone. In response, the VCO control circuit outputs control signals that gradually widen the loop bandwidth of the PLL, then gradually change the VCO bias current to change the VCO power state, and then narrow the loop bandwidth of the PLL back to its original bandwidth. The entire process of widening the PLL bandwidth, changing the VCO power state, and narrowing the PLL bandwidth occurs while the PLL remains locked.

Abstract translation: 要解决的问题：在无线电通信设备中提供本地振荡器。 解决方案：本地振荡器包括锁相环。 锁相环包括压控振荡器23和新型的VCO控制电路27. VCO控制电路可以是可编程的和可配置的。 在一个示例中，在VCO控制电路上接收指令以改变VCO的功率状态。 响应于蜂窝电话中的无线电信道条件（例如，信噪比确定的改变）的检测到的改变，由其他电路发出指令。 作为响应，VCO控制电路输出逐渐拓宽PLL环路带宽的控制信号，然后逐渐改变VCO偏置电流，改变VCO功率状态，然后将PLL的环路带宽缩小回原来的带宽。 当PLL保持锁定时，会发生整个PLL带宽扩大，改变VCO功率状态和缩小PLL带宽的过程。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2011010343A

公开(公告)日：2011-01-13

申请号：JP2010178020

申请日：2010-08-06

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： APARIN VLADIMIR ,  WU YUE

IPC: H03B5/08 ,  H03B5/04 ,  H03B5/12 ,  H03L1/02

CPC classification number: H03L1/023 ,  H03L7/099

Abstract: PROBLEM TO BE SOLVED: To provide a temperature stabilized voltage-controlled oscillator.SOLUTION: An integrated circuit voltage-controlled oscillator (VCO) in a battery-powered device, such as cellular phone, can be configured to tune across a fairly wide frequency range by using a relatively narrow control voltage range. The frequency response of the VCO can be temperature compensated, by applying a temperature variable voltage source to varactors 310a, 310b that form part of a VCO resonant circuit. The reference ends of the varactors can be supplied with a temperature-dependent voltage source 370, 380 that has a temperature dependence that substantially compensates for the varactor temperature dependence. The temperature-dependent voltage source 370, 380 can be a proportional to absolute temperature (PTAT) device. The VCO includes a CMOS oscillator manufactured on the substrate, an LC resonant tank on the substrate and at least a pair of varactors 310a, 310b, 320a, 320b having a common anode connection.

Abstract translation: 要解决的问题：提供温度稳定的压控振荡器。解决方案：电池供电设备（如手机）中的集成电路压控振荡器（VCO）可配置为调谐相当宽的频率范围 通过使用较窄的控制电压范围。 通过将温度可变电压源施加到形成VCO谐振电路的一部分的变容二极管310a，310b，可以对VCO的频率响应进行温度补偿。 变容二极管的参考端可以被提供有温度依赖性电压源370,380，其具有基本上补偿变容二极管温度依赖性的温度依赖性。 温度依赖电压源370,380可以与绝对温度（PTAT）装置成比例。 VCO包括在衬底上制造的CMOS振荡器，衬底上的LC谐振槽和具有公共阳极连接的至少一对变容二极管310a，310b，320a，320b。

公开(公告)号：JP2011182430A

公开(公告)日：2011-09-15

申请号：JP2011087441

申请日：2011-04-11

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： WU YUE

IPC: H03F3/347 ,  H04B1/18

CPC classification number: H03D7/1441 ,  H03D2200/0025 ,  H03F3/193 ,  H03F3/45179 ,  H03F2203/45298 ,  H03F2203/45306 ,  H03F2203/45318 ,  H03F2203/45352

Abstract: PROBLEM TO BE SOLVED: To provide a common-gate common-source transconductance stage for an RF downconversion mixer.
SOLUTION: A wireless device receiver chain includes a mixer 314 with a common-gate common-source (CGCS) input stage 312. Differential signals 310 and 311 from a matching network 308 off a chip 303 can be inputted to the CGCS input stage of the mixer, and the mixer down-converts the signals into baseband or some intermediate frequency. The input stage includes a pair of NMOS transistors in a common-gate configuration and a pair of PMOS transistors in a common-source configuration. A potential advantage of the CGCS input stage over the existing CGO transconductance input configuration is that by adding a common-source stage through a PMOS differential pair, the transconductance gain is decoupled from the high Q matching network.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：为RF下变频混频器提供共栅共源极跨导级。 解决方案：无线设备接收机链包括具有公共共用源（CGCS）输入级312的混合器314.来自芯片303的匹配网络308的差分信号310和311可以被输入到CGCS输入 混频器的混频器，并且混频器将信号下变频成基带或一些中频。 输入级包括共栅配置中的一对NMOS晶体管和共源配置中的一对PMOS晶体管。 CGCS输入级与现有CGO跨导输入配置的潜在优势在于，通过增加PMOS差分对的公共源极级，跨导增益与高Q匹配网络分离。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：WO2007117322A3

公开(公告)日：2008-06-19

申请号：PCT/US2006061819

申请日：2006-12-08

Applicant: QUALCOMM INC ,  WU YUE

Inventor： WU YUE

IPC: H03D7/14 ,  H03F3/193 ,  H03F3/45

CPC classification number: H03D7/1441 ,  H03D2200/0025 ,  H03F3/193 ,  H03F3/45179 ,  H03F2203/45298 ,  H03F2203/45306 ,  H03F2203/45318 ,  H03F2203/45352

Abstract: In an embodiment, a wireless device receiver chain includes a mixer with a common-gate common-source (CGCS) input stage. Differential signals from an off-chip matching network may be input to the CGCS input stage of the mixer, which downconverts the signals to baseband or some intermediate frequency. The input stage includes a pair of NMOS transistors in a common-gate configuration and a pair of PMOS transistors in a common-source configuration. A potential advantage of the CGCS input stage over the existing CGO transconductance stage configuration is that by adding a common-source stage through the PMOS differential-pair, the transconductance gain is decoupled from the high Q matching network.

Abstract translation: 在一个实施例中，无线设备接收器链包括具有共门公共源（CGCS）输入级的混频器。 可以将来自片外匹配网络的差分信号输入到混频器的CGCS输入级，其将信号下变频到基带或一些中频。 输入级包括共栅配置中的一对NMOS晶体管和共源配置中的一对PMOS晶体管。 CGCS输入级与现有CGO跨导级配置的潜在优势在于，通过在PMOS差分对上添加公共源级，跨导增益与高Q匹配网络分离。

公开(公告)号：BR0315832A

公开(公告)日：2005-09-13

申请号：BR0315832

申请日：2003-10-30

Applicant: QUALCOMM INC

Inventor： WU YUE ,  APARIN VLADIMIR

IPC: H03B5/08 ,  H03B5/12

Abstract: A self-biased voltage controlled oscillator (VCO) that includes a VCO core including a plurality of switching transistors, a resonant tank circuit operatively coupled to the VCO core, a current source operatively coupled to the VCO core for supplying a bias current to the VCO core, and a biasing circuit operatively coupled to both the resonant tank circuit and to the current source. The biasing circuit and the switching transistors of the VCO core cooperatively function to bias the current source, whereby the VCO is self-biased.

公开(公告)号：MX2007003233A

公开(公告)日：2007-05-16

申请号：MX2007003233

申请日：2005-09-16

Applicant: QUALCOMM INC

Inventor： WU YUE

IPC: H03D1/22 ,  H03D7/00 ,  H04B1/00

Abstract: Una modalidad esta dirigida a un circuito de convertidor descendente IF cero; el circuito comprende un convertidor de voltaje-a-corriente, un mezclador, y un circuito de supresion; el convertidor de voltaje-a-corriente convierte una senal de voltaje RF a una senal de corriente RF; el mezclador cambia la frecuencia de la senal de corriente a una senal de corriente de frecuencia mas baja; el circuito de supresion remueve un componente de distorsion de frecuencia mas baja de la senal de corriente RF antes de enviar la senal de corriente RF al mezclador.

公开(公告)号：AU2003287409A1

公开(公告)日：2004-06-07

申请号：AU2003287409

申请日：2003-10-30

Applicant: QUALCOMM INC

Inventor： WU YUE ,  APARIN VLADIMIR

IPC: H03B5/08 ,  H03B5/12

Abstract: A self-biased voltage controlled oscillator (VCO) that includes a VCO core including a plurality of switching transistors, a resonant tank circuit operatively coupled to the VCO core, a current source operatively coupled to the VCO core for supplying a bias current to the VCO core, and a biasing circuit operatively coupled to both the resonant tank circuit and to the current source. The biasing circuit and the switching transistors of the VCO core cooperatively function to bias the current source, whereby the VCO is self-biased.

公开(公告)号：BRPI0410126A

公开(公告)日：2006-05-09

申请号：BRPI0410126

申请日：2004-05-10

Applicant: QUALCOMM INC

Inventor： WU YUE

IPC: H03F1/30 ,  H03F3/45

Abstract: A wideband, constant-gain voltage amplifier. An input transistor has a transconductance that is a function of temperature and fabrication process. A transimpedance amplifier is connected to the input transistor. The transimpedance amplifier has a transimpedance that is a function of temperature and process that is substantially the inverse of the function of temperature and fabrication process of the transconductance of the input transistor.

公开(公告)号：CA2562908A1

公开(公告)日：2005-10-27

申请号：CA2562908

申请日：2005-03-21

Applicant: QUALCOMM INC

Inventor： WU YUE ,  APARIN VLADIMIR

IPC: H03L1/02 ,  H03B5/04 ,  H03B5/12

Abstract: An integrated circuit Voltage Controlled Oscillator (VCO) in a battery-power ed device, such as a cellular phone, can be configured to tune across a fairly wide frequency range using a relatively narrow control voltage range. The frequency response of the VCO can be temperature compensated by applying a temperature variable voltage source to varactors (310a-310b) that form part of a VCO resonant circuit. The reference ends of the varactors can be supplied with a temperature dependent voltage source (370, 380) that has a temperatur e dependence that substantially compensates for varactor temperature dependenc e. The temperature dependent voltage source (370, 380) can be a Proportional To Absolute Temperature (PTAT) device. The VCO includes a CMOS oscillator manufactured on the substrate, an LC resonant tank on the substrate and at least a pair of varacters (310a, 310b; 320a, 320b) having a common anode connection.

公开(公告)号：BRPI0509601A

公开(公告)日：2007-09-18

申请号：BRPI0509601

申请日：2005-04-01

Applicant: QUALCOMM INC

Inventor： PERSICO CHARLES J ,  VLADIMIR APARIN ,  WU YUE

IPC: H04B1/16 ,  H04B1/10 ,  H04B1/56

Abstract: To reduce power consumption, receiver circuit blocks within a wireless device are biased with less current whenever possible while still achieving the desired performance. The receiver circuit blocks may include a voltage controlled oscillator (VCO) that generates an oscillator signal used for frequency downconversion of a received signal from the forward link, a low noise amplifier (LNA) that amplifies the received signal, and a mixer that frequency downconverts the received signal. The VCO may be biased with less current if phase noise performance is less stringent, e.g., when (1) the wireless device is not transmitting on the reverse link, (2) a large amplitude jammer is not detected, and/or (3) the received signal level is sufficiently high. The bias currents of other receiver circuit blocks may also be adjusted based on transmitter activity, detected jammer, and/or received signal level.