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31. 发明授权

EP3123610B1 SPURIOUS SIGNAL MITIGATION FOR CARRIER AGGREGATION AMPLIFIER 有权
标题翻译：载波聚合放大器的奇异信号缓解
公开(公告)号：EP3123610B1
公开(公告)日：2018-04-18
申请号：EP15715938.5
申请日：2015-03-27
申请人： QUALCOMM INCORPORATED
发明人： UZUNKOL, Mehmet , XU, Rui , YOUSSEF, Ahmed, Abdel, Monem , LEUNG, Wingching, Vincent , ABDEL GHANY, Ehab, Ahmed, Sobhy , HE, Allen , WOO, Sang Hyun , CHANG, Li-Chung
IPC分类号： H03F3/00 , H03F1/30 , H03F3/68 , H03F3/72 , H03F3/19 , H03F3/195 , H03F1/08 , H03F1/02
CPC分类号： H03F1/0211 , H03F1/0277 , H03F1/086 , H03F1/30 , H03F3/005 , H03F3/19 , H03F3/195 , H03F3/68 , H03F3/72 , H03F2200/294 , H03F2200/451
摘要： A device includes an amplifier circuit comprising a plurality of amplification paths, and at least one switchable bypass capacitance coupled to an associated shared power distribution network, the at least one switchable bypass capacitance and at least one of the plurality of amplification paths responsive to a control signal configured to selectively ground the at least one switchable bypass capacitance and selectively enable the at least one of the amplification paths based on a selected operating mode.

32. 发明公开

EP3262753A1 ELECTROSTATIC DISCHARGE PROTECTION FOR CMOS AMPLIFIER 审中-公开
标题翻译： CMOS放大器的静电放电保护
公开(公告)号：EP3262753A1
公开(公告)日：2018-01-03
申请号：EP16704750.5
申请日：2016-01-27
申请人： Qualcomm Incorporated
发明人： YOUSSEF, Ahmed Abdel Monem , GUDEM, Prasad Srinivasa Siva , WORLEY, Eugene Robert , PAN, Dongling , CHANG, Li-Chung
IPC分类号： H03F1/52 , H03F3/193
CPC分类号： H03F1/523 , H01L27/0255 , H03F1/52 , H03F3/193 , H03F3/211 , H03F3/3016 , H03F3/68 , H03F2200/294 , H03F2200/441 , H03F2200/444 , H03F2200/451 , H03F2200/489 , H03F2203/21106
摘要： A CMOS amplifier including electrostatic discharge (ESD) protection circuits is disclosed. In one embodiment, the CMOS amplifier may include a PMOS transistor, a NMOS transistor, primary protection diodes, and one or more auxiliary protection diodes to limit a voltage difference between terminals of the CMOS amplifier. In some embodiments, the auxiliary protection diodes may limit the voltage difference between an input terminal of the CMOS amplifier and a supply voltage, the input terminal of the CMOS amplifier and ground, and the input terminal and the output terminal of the CMOS amplifier.

33. 发明授权

EP2145398B1 WIRELESS RECEIVER WITH NOTCH FILTER TO REDUCE EFFECTS OF TRANSMIT SIGNAL LEAKAGE 失效
标题翻译：具有凹口过滤无线接收器，降低发送信号LICK的影响
公开(公告)号：EP2145398B1
公开(公告)日：2017-06-21
申请号：EP08732037.0
申请日：2008-03-12
申请人： Qualcomm Incorporated
发明人： CHANG, Li-Chung , GUDEM, Prasad S. , CABANILLAS, Jose
IPC分类号： H04B1/525 , H04B1/10
CPC分类号： H04B1/525 , H04B1/1036

34. 发明公开

EP3146638A1 CARRIER AGGREGATION AMPLIFIER WITH DUAL GAIN CONTROL 有权转让
标题翻译：麻醉品麻醉大师VERSTÄRKUNGSREGELUNGTRÄGERAGGREGATIONSVERSTÄRKERMIT DOPPELTERVERSTÄRKUNGSREGELUNG
公开(公告)号：EP3146638A1
公开(公告)日：2017-03-29
申请号：EP15726786.5
申请日：2015-05-12
申请人： Qualcomm Incorporated
发明人： YOUSSEF, Ahmed Abdel Monem , ABDEL GHANY, Ehab Ahmed Sobhy , CHANG, Li-Chung
IPC分类号： H04B1/00 , H03F1/22 , H03G1/00
CPC分类号： H03G3/3036 , H03F1/223 , H03F3/19 , H03F3/193 , H03F3/68 , H03F2200/111 , H03F2200/294 , H03F2200/451 , H03F2200/489 , H03G1/0029 , H04B1/0053
摘要： An apparatus includes a first amplification stage configured to amplify a first carrier signal and a second amplification stage configured to amplify a second carrier signal. The first amplification stage is direct-current (DC) coupled to the second amplification stage. First circuitry is coupled to the first amplification stage and configured to control a first gain of the first amplification stage. The first circuitry includes a first gain control transistor configured to selectively divert a first bleed current from a first output of the first amplification stage. Second circuitry is coupled to the second amplification stage and configured to control a second gain of the second amplification stage independently of the first gain. The second circuitry includes a second gain control transistor configured to selectively divert a second bleed current from a second output of the second amplification stage.
摘要翻译：一种装置包括被配置为放大第一载波信号的第一放大级和被配置为放大第二载波信号的第二放大级。第一放大级是耦合到第二放大级的直流（DC）。第一电路耦合到第一放大级并且被配置为控制第一放大级的第一增益。第一电路包括第一增益控制晶体管，其被配置为选择性地转移来自第一放大级的第一输出的第一泄放电流。第二电路耦合到第二放大级并且被配置为独立于第一增益来控制第二放大级的第二增益。第二电路包括第二增益控制晶体管，其被配置为选择性地转移来自第二放大级的第二输出的第二放电电流。

35. 发明公开

EP3050211A1 BASEBAND PROCESSING CIRCUITRY 有权
标题翻译： BASISBANDVERARBEITUNGSSCHALTUNG
公开(公告)号：EP3050211A1
公开(公告)日：2016-08-03
申请号：EP14781362.0
申请日：2014-09-19
申请人： Qualcomm Incorporated
发明人： CHANG, Li-Chung , GUPTA, Bindu , GATHMAN, Timothy Donald , CHAMAS, Ibrahim Ramez
IPC分类号： H03F3/45 , H03F1/02 , H03F3/72 , H03F1/42 , H03F1/22 , H03F3/193 , H03F1/08
CPC分类号： H03H11/0466 , H03F1/0277 , H03F1/08 , H03F1/223 , H03F3/193 , H03F3/45183 , H03F3/45475 , H03F3/45932 , H03F3/72 , H03F2200/06 , H03F2200/09 , H03F2200/165 , H03F2200/168 , H03F2200/171 , H03F2200/294 , H03F2200/336 , H03F2200/411 , H03F2200/429 , H03F2200/432 , H03F2200/534 , H03F2200/541 , H03F2200/543 , H03F2203/45352 , H03F2203/45396 , H03F2203/45506 , H03F2203/45511 , H03F2203/45512 , H03F2203/45516 , H03F2203/45521 , H03F2203/45522 , H03F2203/45526 , H03F2203/45528 , H03F2203/45594 , H03F2203/45618 , H03F2203/45702 , H03F2203/45728 , H03F2203/7215 , H03F2203/7221 , H03F2203/7236 , H03H2210/021 , H03H2250/00
摘要： Techniques for designing baseband processing circuitry for radio IC's. In an aspect, techniques for differential-to-single-ended conversion in a baseband portion of the IC are disclosed to reduce the pin count and package size for RF IC's. In another aspect, the converter includes selectable narrowband and wideband amplifiers, wherein the wideband amplifiers may be implemented using transistor devices having smaller area than corresponding transistor devices of narrowband amplifiers. Further techniques for bypassing one or more elements, and for implementing a low-pass filter of the converter using an R-C filter network, are described.
摘要翻译：无线电IC基带处理电路设计技术。在一方面，公开了用于IC的基带部分中的差分到单端转换的技术，以减少RF IC的引脚数和封装尺寸。在另一方面，转换器包括可选择的窄带和宽带放大器，其中可以使用具有比窄带放大器的相应晶体管器件小的面积的晶体管器件来实现宽带放大器。描述用于绕过一个或多个元件以及用于使用R-C滤波器网络来实现转换器的低通滤波器的进一步的技术。

36. 发明公开

EP2932631A1 RECEIVER CALIBRATION WITH LO SIGNAL FROM INACTIVE RECEIVER 有权
标题翻译：与LO信号接收机校准从非RECEIVERS
公开(公告)号：EP2932631A1
公开(公告)日：2015-10-21
申请号：EP13819125.9
申请日：2013-12-17
申请人： Qualcomm Incorporated
发明人： FERNANDO, Udara C. , CHANG, Li-Chung , CHELLAPPA,Vijay K. , BOSSU, Frederic , HUMNABADKAR, Ketan , SAHOTA, Gurkanwal Singh
IPC分类号： H04B17/00
CPC分类号： H04B17/21
摘要： Techniques for calibrating a receiver based on a local oscillator (LO) signal from another receiver are disclosed. In an exemplary design, an apparatus (e.g., a wireless device or an integrated circuit) includes first and second local oscillator (LO) generators. The first LO generator generates a first LO signal used by a first receiver for frequency downconversion. The second LO generator generates a second LO signal used by a second receiver for frequency downconversion in a first operating mode. The second LO signal is used to generate a test signal for the first receiver in a second operating mode. The second LO signal may be provided as the test signal or may be amplitude modulated with a modulating signal to generate the test signal. The test signal may be used to calibrate residual sideband (RSB), second order input intercept point (IIP2), receive path gain, etc.

37. 发明公开

EP2896130A1 RECEIVER ARCHITECTURE 有权转让
标题翻译： EMPFÄNGER，建筑学
公开(公告)号：EP2896130A1
公开(公告)日：2015-07-22
申请号：EP13767181.4
申请日：2013-09-11
申请人： Qualcomm Incorporated
发明人： CHANG, Li-Chung , GUDEM, Prasad Srinivasa Siva , BOSSU, Frederic , HOLENSTEIN, Christian
IPC分类号： H04B1/00 , H04B1/28
CPC分类号： H04J3/00 , H03F3/72 , H04B1/0064 , H04B1/0071
摘要： A receiver architecture for carrier aggregation is disclosed. In an exemplary design, an apparatus (e.g., a wireless device, a circuit module, etc.) includes a plurality of low noise amplifiers (LNAs), a plurality of switches, and at least one downconverter. The LNAs receive and amplify at least one input radio frequency (RF) signal and provide at least one amplified RF signal. The switches are coupled to the outputs of the plurality of LNAs. The at least one downconverter is coupled to the plurality of switches, downconverts the at least one amplified RF signal, and provides at least one downconverted signal. The switches reduce the number of downconverters needed to support reception of transmissions on multiple sets of carriers via multiple receive antennas. The LNAs and the switches may be implemented on at least one front-end module or a back-end module. The downconverter(s) are implemented on the back-end module.
摘要翻译：公开了用于载波聚合的接收机架构。在示例性设计中，装置（例如，无线装置，电路模块等）包括多个低噪声放大器（LNA），多个开关和至少一个下变频器。 LNA接收和放大至少一个输入射频（RF）信号并提供至少一个放大的RF信号。开关耦合到多个LNA的输出端。所述至少一个下变频器耦合到所述多个开关，对所述至少一个放大的RF信号进行下变频，并提供至少一个下变频信号。交换机减少了通过多个接收天线支持在多组载波上接收传输所需的下变频器的数量。 LNA和交换机可以在至少一个前端模块或后端模块上实现。下变频器在后端模块上实现。

38. 发明公开

EP2820761A1 SINGLE-CHIP SIGNAL SPLITTING CARRIER AGGREGATION RECEIVER ARCHITECTURE 有权
标题翻译：单芯片接收体结构的一个分枝信号载波聚合
公开(公告)号：EP2820761A1
公开(公告)日：2015-01-07
申请号：EP13714048.9
申请日：2013-03-01
申请人： Qualcomm Incorporated
发明人： GUDEM, Prasad Srinivasa Siva , SAHOTA, Gurkanwal Singh , CHANG, Li-Chung , HOLENSTEIN, Christian , BOSSU, Frederic
IPC分类号： H04B1/00 , H04B1/48
CPC分类号： H04B1/0057 , H04B7/04
摘要： A wireless communication device configured for receiving a multiple carrier signal is described. The wireless communication device includes a single-chip signal splitting carrier aggregation receiver architecture. The single-chip signal splitting carrier aggregation receiver architecture includes a primary antenna, a secondary antenna and a transceiver chip. The single-chip signal splitting carrier aggregation receiver architecture reuses a simultaneous hybrid dual receiver path.

39. 发明公开

EP2294699A1 METHOD AND APPARATUS FOR PROCESSING A COMMUNICATION SIGNAL IN A RECEIVER 有权
标题翻译：方法和设备用于处理通信信号接收器
公开(公告)号：EP2294699A1
公开(公告)日：2011-03-16
申请号：EP09731682.2
申请日：2009-04-15
申请人： QUALCOMM Incorporated
发明人： GUDEM, Prasad, S. , CABANILLAS, Jose , CHANG, Li-Chung , LIU, Li
IPC分类号： H04B1/10
CPC分类号： H04B1/109 , H03F1/3205 , H03F1/3211 , H03F3/193 , H03F3/245
摘要： A receiver includes a jammer detector configured to detect the presence or the absence of jamming in a communication signal within a gain state. The receiver further includes an amplifier configured to amplify the communication signal in a high linearity receiving mode or a low linearity receiving mode, wherein the high linearity receiving mode corresponds with a lower gain for the gain state in the amplifier relative to that of the low linearity receiving mode. In addition, the receiver includes a processing unit coupled to the jammer detector, the processing unit being configured to control the amplifier to amplify the communication signal in either the high linearity receiving mode or the low linearity receiving mode, based on the output of the jammer detector detecting the presence or the absence of jamming in the communication signal. A method is also provided for processing a communication signal in a receiver.

40. 发明公开

EP2145398A2 WIRELESS RECEIVER WITH NOTCH FILTER TO REDUCE EFFECTS OF TRANSMIT SIGNAL LEAKAGE 失效
标题翻译：具有凹口过滤无线接收器，降低发送信号LICK的影响
公开(公告)号：EP2145398A2
公开(公告)日：2010-01-20
申请号：EP08732037.0
申请日：2008-03-12
申请人： Qualcomm Incorporated
发明人： CHANG, Li-Chung , GUDEM, Prasad S. , CABANILLAS, Jose
IPC分类号： H04B1/52 , H04B1/10
CPC分类号： H04B1/525 , H04B1/1036
摘要： This disclosure describes techniques for reducing adverse effects of TX signal leakage in a full-duplex, wireless communication device. The techniques make use of a notch filter to reject TX signal leakage in a signal processed in the RX path of the wireless communication device. The notch filter may be constructed as a complex notch filter using passive resistor and capacitor components to produce a notch frequency that attenuates TX signal leakage components in a desired signal. The notch filter may be applied to a down-converted, baseband signal produced by a passive mixer.

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