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31. 发明申请

WO2011014849A3 BIAS CURRENT MONITOR AND CONTROL MECHANISM FOR AMPLIFIERS 审中-公开
标题翻译：放大器的偏置电流监测和控制机制
公开(公告)号：WO2011014849A3
公开(公告)日：2011-06-23
申请号：PCT/US2010044033
申请日：2010-07-30
申请人： QUALCOMM INC , MARRA THOMAS D , HADJICHRISTOS ARISTOTELE , PLETCHER NATHAN M
发明人： MARRA THOMAS D , HADJICHRISTOS ARISTOTELE , PLETCHER NATHAN M
IPC分类号： H03F1/30 , H03F3/189
CPC分类号： H03F1/301 , H03F1/30 , H03F3/04 , H03F3/189
摘要： Techniques for monitoring and controlling bias current of amplifiers are described. In an exemplary design, an apparatus may include an amplifier and a bias circuit. The amplifier may include at least one transistor coupled to an inductor. The bias circuit may generate at least one bias voltage for the at least one transistor in the amplifier to obtain a target bias current for the amplifier. The bias circuit may generate the at least one bias voltage based on a voltage across the inductor in the amplifier, or a current through a current mirror formed with one of the at least one transistor in the amplifier, or a gate-to-source voltage of one of the at least one transistor in the amplifier, or a voltage in a replica circuit replicating the amplifier, or a current applied to the amplifier with a switched mode power supply disabled.
摘要翻译：描述了用于监视和控制放大器的偏置电流的技术。在示例性设计中，装置可以包括放大器和偏置电路。放大器可以包括耦合到电感器的至少一个晶体管。偏置电路可以产生用于放大器中的至少一个晶体管的至少一个偏置电压以获得放大器的目标偏置电流。偏置电路可基于放大器中的电感器两端的电压或通过与放大器中的至少一个晶体管中的一个晶体管形成的电流镜的电流或者栅极至源极电压来生成至少一个偏置电压放大器中的至少一个晶体管中的一个晶体管的电压，或复制放大器的复制电路中的电压，或者禁用开关模式电源而施加于放大器的电流。

32. 发明申请

WO2010148407A3 POWER AND IMPEDANCE MEASUREMENT CIRCUITS FOR A WIRELESS COMMUNICATION DEVICE 审中-公开
标题翻译：无线通信设备的功率和阻抗测量电路
公开(公告)号：WO2010148407A3
公开(公告)日：2011-02-24
申请号：PCT/US2010039376
申请日：2010-06-21
申请人： QUALCOMM INC , SEE PUAY HOE , BALLANTYNE GARY JOHN , SAHOTA GURKANWAL SINGH , HADJICHRISTOS ARISTOTELE , CICALINI ALBERTO
发明人： SEE PUAY HOE , BALLANTYNE GARY JOHN , SAHOTA GURKANWAL SINGH , HADJICHRISTOS ARISTOTELE , CICALINI ALBERTO
IPC分类号： H04B1/04
CPC分类号： H04B1/0458 , H03H7/40
摘要： Exemplary embodiments disclosed are directed to power and impedance measurement circuits that may be used to measure power and/or impedance are described. A measurement circuit may include a sensor and a computation unit. The sensor may sense (i) a first voltage signal across a series circuit coupled to a load to obtain a first sensed signal and (ii) a second voltage signal at a designated end of the series circuit to obtain a second sensed signal. The sensor may mix (i) a first version of the first sensed signal with a first version of the second sensed signal to obtain a first sensor output and (ii) a second version of the first sensed signal with a second version of the second sensed signal to obtain a second sensor output. The computation unit may determine the impedance and/or delivered power at the designated end of the series circuit based on the sensor outputs.
摘要翻译：所公开的示例性实施例涉及可用于测量功率和/或阻抗的功率和阻抗测量电路。测量电路可以包括传感器和计算单元。传感器可以感测（i）跨耦合到负载的串联电路的第一电压信号以获得第一感测信号，以及（ii）串联电路的指定端的第二电压信号以获得第二感测信号。传感器可以将（i）第一感测信号的第一版本与第二感测信号的第一版本混合以获得第一传感器输出，以及（ii）第一感测信号的第二版本，具有第二感测的第二版本信号以获得第二传感器输出。计算单元可以基于传感器输出来确定串联电路的指定端处的阻抗和/或传递功率。

33. 发明申请

WO2011014849A2 BIAS CURRENT MONITOR AND CONTROL MECHANISM FOR AMPLIFIERS 审中-公开
标题翻译：偏置电流监视器和放大器的控制机制
公开(公告)号：WO2011014849A2
公开(公告)日：2011-02-03
申请号：PCT/US2010/044033
申请日：2010-07-30
申请人： QUALCOMM INCORPORATED , MARRA, Thomas D. , HADJICHRISTOS, Aristotele , PLETCHER, Nathan, M.
发明人： MARRA, Thomas D. , HADJICHRISTOS, Aristotele , PLETCHER, Nathan, M.
IPC分类号： H03F1/30 , H03F3/189
CPC分类号： H03F1/301 , H03F1/30 , H03F3/04 , H03F3/189
摘要： Techniques for monitoring and controlling bias current of amplifiers are described. In an exemplary design, an apparatus may include an amplifier and a bias circuit. The amplifier may include at least one transistor coupled to an inductor. The bias circuit may generate at least one bias voltage for the at least one transistor in the amplifier to obtain a target bias current for the amplifier. The bias circuit may generate the at least one bias voltage based on a voltage across the inductor in the amplifier, or a current through a current mirror formed with one of the at least one transistor in the amplifier, or a gate-to-source voltage of one of the at least one transistor in the amplifier, or a voltage in a replica circuit replicating the amplifier, or a current applied to the amplifier with a switched mode power supply disabled.
摘要翻译：描述了用于监视和控制放大器偏置电流的技术。在示例性设计中，装置可以包括放大器和偏置电路。放大器可以包括耦合到电感器的至少一个晶体管。偏置电路可以为放大器中的至少一个晶体管产生至少一个偏置电压，以获得放大器的目标偏置电流。偏置电路可以基于放大器中的电感器两端的电压或通过放大器中的至少一个晶体管中的一个形成的电流镜的电流或栅极至源极电压来产生至少一个偏置电压放大器中的至少一个晶体管中的一个，或复制放大器的复制电路中的电压，或禁用开关模式电源的施加到放大器的电流。

34. 发明申请

WO2011008562A3 INTEGRATED POWER AMPLIFIER WITH LOAD INDUCTOR LOCATED UNDER IC DIE 审中-公开
公开(公告)号：WO2011008562A3
公开(公告)日：2011-01-20
申请号：PCT/US2010/040488
申请日：2010-06-29
申请人： QUALCOMM Incorporated , KLEMENS, Guy , MYERS, Thomas A. , FREDERICK, JR., Norman L. , ZHAO, Yu , NEJATI, Babak , PLETCHER, Nathan M. , HADJICHRISTOS, Aristotele
发明人： KLEMENS, Guy , MYERS, Thomas A. , FREDERICK, JR., Norman L. , ZHAO, Yu , NEJATI, Babak , PLETCHER, Nathan M. , HADJICHRISTOS, Aristotele
IPC分类号： H01L23/64 , H03F3/195
摘要： A compact integrated power amplifier is described herein. In an exemplary design, an apparatus includes (i) an integrated circuit (IC) die having at least one transistor for a power amplifier and (ii) an IC package having a load inductor for the power amplifier. The IC die is mounted on the IC package with the transistor(s) located over the load inductor. In an exemplary design, the IC die includes a transistor manifold that is placed over the load inductor on the IC package. The transistor(s) are fabricated in the transistor manifold, have a drain connection in the center of the transistor manifold, and have source connections on two sides of the transistor manifold. The IC die and the IC package may include one or more additional power amplifiers. The transistor(s) for each power amplifier may be located over the load inductor for that power amplifier.

35. 发明申请

WO2010141774A2 TUNABLE MATCHING CIRCUITS FOR POWER AMPLIFIERS 审中-公开
标题翻译：功率放大器的可调匹配电路
公开(公告)号：WO2010141774A2
公开(公告)日：2010-12-09
申请号：PCT/US2010/037322
申请日：2010-06-03
申请人： QUALCOMM Incorporated , SEE, Puay Hoe , HADJICHRISTOS, Aristotele , SAHOTA, Gurkanwal Singh
发明人： SEE, Puay Hoe , HADJICHRISTOS, Aristotele , SAHOTA, Gurkanwal Singh
IPC分类号： H04B1/04
CPC分类号： H04B1/0458 , H03F1/565 , H03F3/24 , H03F3/72 , H03F2200/111 , H03F2200/378 , H03F2200/387 , H03F2203/7209
摘要： Tunable matching circuits for power amplifiers are described. In an exemplary design, an apparatus may include a power amplifier and a tunable matching circuit. The power amplifier may amplify an input RF signal and provide an amplified RF signal. The tunable matching circuit may provide output impedance matching for the power amplifier, may receive the amplified RF signal and provide an output RF signal, and may be tunable based on at least one parameter effecting the operation of the power amplifier. The parameter(s) may include an envelope signal for the amplified RF signal, an average output power level of the output RF signal, a power supply voltage for the power amplifier, IC process variations, etc. The tunable matching circuit may include a series variable capacitor and/or a shunt variable capacitor. Each variable capacitor may be tunable based on a control generated based on the parameter(s).
摘要翻译：描述了用于功率放大器的可调谐匹配电路。在示例性设计中，设备可以包括功率放大器和可调谐匹配电路。功率放大器可以放大输入RF信号并提供放大的RF信号。可调谐匹配电路可以为功率放大器提供输出阻抗匹配，可以接收放大的RF信号并提供输出RF信号，并且可以基于影响功率放大器的操作的至少一个参数来调节。该参数可以包括放大的RF信号的包络信号，输出RF信号的平均输出功率电平，功率放大器的电源电压，IC处理变化等。可调谐匹配电路可以包括一系列可变电容器和/或分流可变电容器。每个可变电容器可以基于基于参数产生的控制来调节。

36. 发明申请

WO2009067464A1 ADJUSTABLE LOCAL OSCILLATOR PATH IN A COMMUNICATION DEVICE WITH A TRANSMITTER 审中-公开
标题翻译：在具有发射机的通信设备中可调谐的本地振荡器路径
公开(公告)号：WO2009067464A1
公开(公告)日：2009-05-28
申请号：PCT/US2008/083944
申请日：2008-11-18
申请人： QUALCOMM INCORPORATED , ZHUO, Wei , HADJICHRISTOS, Aristotele , PAN, Tsu-Wang
发明人： ZHUO, Wei , HADJICHRISTOS, Aristotele , PAN, Tsu-Wang
IPC分类号： H04B1/10 , H04B1/52
CPC分类号： H04B1/109 , H04B1/525
摘要： A communication device includes a transmitter and a receiver. The receiver mixes a local oscillator (LO) signal with the received signal to downconvert the received signal to an intermediate frequency (IF). The LO path that feeds the LO signal to the downconverting mixer is controlled based on the transmit power of the transmitter. For high transmit power, the drive of the LO path is increased, thereby increasing the signal-to-noise ratio of the LO signal input into the mixer. For low transmit power levels, the drive to the LO path is decreased, reducing power consumption in the communication device. In this way, receiver path noise due to mixing of the LO phase noise with the self-generated transmitter signal is selectively controlled while incurring lower power consumption penalty. The communication device may be an access terminal configured for communication with a cellular radio network.
摘要翻译：通信设备包括发射机和接收机。接收机将本地振荡器（LO）信号与接收信号混合，以将接收到的信号下变频到中频（IF）。基于发射机的发射功率来控制将LO信号馈送到下变频混频器的LO路径。对于高发射功率，LO路径的驱动增加，从而增加输入混频器的LO信号的信噪比。对于低发射功率电平，降低LO路径的驱动，从而降低通信设备的功耗。以这种方式，由于LO相位噪声与自发送发射机信号的混合引起的接收机路径噪声被选择性地控制，同时产生较低的功耗损失。通信设备可以是被配置为与蜂窝无线电网络进行通信的接入终端。

37. 发明申请

WO2009061835A3 METHODS AND APPARATUSES FOR SELECTABLE VOLTAGE SUPPLY 审中-公开
公开(公告)号：WO2009061835A3
公开(公告)日：2009-05-14
申请号：PCT/US2008/082504
申请日：2008-11-05
申请人： QUALCOMM INCORPORATED , CASSIA, Marco , HADJICHRISTOS, Aristotele , DONOVAN, Conor , LEE, Sang-oh
发明人： CASSIA, Marco , HADJICHRISTOS, Aristotele , DONOVAN, Conor , LEE, Sang-oh
IPC分类号： H03K17/693 , H03K17/16 , H03K17/0814
摘要： A circuit which selects a supply voltage from a plurality of voltage supplies is presented. The circuit includes a first transistor (215) configured to select a first voltage supply (240), a second transistor (210) configured to select a second voltage supρly (230), a first parasitic current inhibitor (205) coupled the first transistor, (215) the first voltage supply, (240) and the second voltage supply, (230) where the first parasitic current inhibitor (205) automatically utilizes the voltage supply providing the highest voltage for preventing a substrate current from flowing through a bulk node of the first transistor (215), and a second parasitic current inhibitor (207) coupled the second transistor (210), the first voltage supply (240), and the second voltage supply(230), where the second parasitic current inhibitor (207) automatically utilizes the voltage supply providing the highest voltage for preventing a substrate current from flowing through a bulk node of the second transistor (210).

38. 发明申请

WO2009029721A1 DIFFERENTIAL TO SINGLE-ENDED CONVERSION FOR RADIO FREQUENCY DEVICES 审中-公开
标题翻译：差分到无线电频率设备的单端转换
公开(公告)号：WO2009029721A1
公开(公告)日：2009-03-05
申请号：PCT/US2008/074660
申请日：2008-08-28
申请人： QUALCOMM Incorporated , HADJICHRISTOS, Aristotele
发明人： HADJICHRISTOS, Aristotele
IPC分类号： H03H11/32
CPC分类号： H03H11/32
摘要： In an exemplary embodiment, a circuit is disclosed comprising a plurality of inputs, each input to receive a radio frequency waveform from a plurality of differential input waveforms having different phases; and an inverter circuit to invert a waveform from the plurality of differential inputs waveforms to a substantially same phase as a non-inverted input waveform. The circuit further comprises a combiner node to combine the inverted and the non-inverted input waveforms into an output waveform.
摘要翻译：在示例性实施例中，公开了一种包括多个输入的电路，每个输入端用于从具有不同相位的多个差分输入波形接收射频波形; 以及反相器电路，用于将波形从多个差分输入波形反转为与非反相输入波形基本相同的相位。电路还包括组合器节点，以将反相和非反相输入波形组合成输出波形。

39. 发明申请

WO2007048113A3 DIVERSITY RECEIVER FOR WIRELESS COMMUNICATION 审中-公开
公开(公告)号：WO2007048113A3
公开(公告)日：2007-04-26
申请号：PCT/US2006/060082
申请日：2006-10-19
申请人： QUALCOMM INCORPORATED , SAMPSON, Wesley , HADJICHRISTOS, Aristotele , SAHOTA, Gurkanwal S.
发明人： SAMPSON, Wesley , HADJICHRISTOS, Aristotele , SAHOTA, Gurkanwal S.
IPC分类号： H04B1/40 , H04B7/08
摘要： A diversity receiver capable of receiving a CDMA system (e.g., a W-CDMA system) and a TDMA system (e.g., a GSM system), with receive diversity for at least one system, is described. W-CDMA is often referred to as UMTS. In one design, the diversity receiver includes a first receiver for GSM and a second receiver for UMTS. The first receiver may be implemented with one receiver design, may be spec-compliant for GSM, and may also support UMTS. The second receiver may be implemented with another receiver design, may be spec-compliant for UMTS, and may also support GSM. The first receiver may include a lowpass filter having a bandwidth that is adjustable for GSM and UMTS. The second receiver may include a bandpass filter used to attenuate a transmit frequency range for UMTS. Each receiver may include circuit blocks that are used for both GSM and UMTS.

40. 发明申请

WO2006017202A1 SYSTEM AND METHOD FOR CURRENT-MODE AMPLITUDE MODULATION 审中-公开
标题翻译：用于电流模式振幅调制的系统和方法
公开(公告)号：WO2006017202A1
公开(公告)日：2006-02-16
申请号：PCT/US2005/024406
申请日：2005-07-11
申请人： ERICSSON INC. , PEHLKE, David R. , HADJICHRISTOS, Aristotele
发明人： PEHLKE, David R. , HADJICHRISTOS, Aristotele
IPC分类号： H03C1/06
CPC分类号： H03C1/06 , H03C5/00 , H03F1/02 , H03F1/0222 , H03F1/0261 , H03F1/32 , H03F3/24 , H03F2200/324 , H03F2200/456 , H03F2200/504 , H04B1/04 , H04B1/0483 , H04B2001/045 , H04B2001/0491
摘要： An amplifier circuit includes a power amplifier biased for saturated mode operation, and a controllable current source to provide supply current to the power amplifier. The controllable current source effects desired amplitude modulation of the output signal from the power amplifier by modulating the supply current it provides responsive to an amplitude information signal. In one or more embodiments, the current source includes a circuit that is configured to adjust one or more transmitter operating parameters responsive to detecting changes in the effective DC resistance of the power amplifier. For example, the circuit may generate a compensation signal that reduces the effective DC resistance responsive to detecting that the effective DC resistance has undesirably increased. By way of non-limiting examples, such compensation may be effected by changing a current mirror, an amplifier-to-antenna impedance matching, an amplifier bias or device size, or imposing some form of transmit signal back-off.
摘要翻译：放大器电路包括偏置用于饱和模式操作的功率放大器和可控电流源，以向功率放大器提供电源电流。可控电流源通过调制其响应于幅度信息信号提供的电源电流来影响来自功率放大器的输出信号的期望幅度调制。在一个或多个实施例中，电流源包括被配置为响应于检测功率放大器的有效直流电阻的变化来调整一个或多个发射器操作参数的电路。例如，电路可以响应于检测到有效DC电阻不期望地增加而产生降低有效DC电阻的补偿信号。作为非限制性示例，可以通过改变电流镜，放大器到天线阻抗匹配，放大器偏置或器件尺寸或者施加某种形式的发射信号反馈来实现这种补偿。

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