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1. 发明授权

EP2909929B1 AMPLIFIERS WITH NOISE SPLITTING 有权
公开(公告)号：EP2909929B1
公开(公告)日：2020-07-22
申请号：EP13788822.8
申请日：2013-10-22
申请人： Qualcomm Incorporated
发明人： XU, Rui , CHANG, Li-Chung
IPC分类号： H03F3/19 , H03F1/22 , H03F3/72 , H03F3/21 , H03F1/26 , H03F3/24 , H03F3/68

2. 发明授权

EP2974004B1 SPLIT AMPLIFIERS WITH IMPROVED LINEARITY 有权
公开(公告)号：EP2974004B1
公开(公告)日：2019-08-21
申请号：EP14717555.8
申请日：2014-03-11
申请人： Qualcomm Incorporated
发明人： YOUSSEF, Ahmed, A. , CHANG, Li-Chung
IPC分类号： H03F1/22 , H03F1/32 , H03F1/56 , H03F3/21 , H03F3/72 , H03F3/193 , H03F3/24 , H03F3/68

3. 发明授权

EP3146640B1 MULTI-STAGE AMPLIFIER WITH RC NETWORK 有权
公开(公告)号：EP3146640B1
公开(公告)日：2019-06-26
申请号：EP15723418.8
申请日：2015-05-08
申请人： Qualcomm Incorporated
发明人： YOUSSEF, Ahmed Abdel Monem , LEUNG, Wingching Vincent , XU, Rui , FERNANDO, Udara Charman , HUMNABADKAR, Ketan , HUANG, Tsai-Chen , CHANG, Li-Chung
IPC分类号： H04B1/44 , H04B1/48 , H04B1/00

4. 发明授权

EP2974003B1 AMPLIFIERS WITH INDUCTIVE DEGENERATION AND CONFIGURABLE GAIN AND INPUT MATCHING 有权
标题翻译：放大器具有诱导性的退化和可配置的增益和输入匹配
公开(公告)号：EP2974003B1
公开(公告)日：2017-12-20
申请号：EP14712142.0
申请日：2014-03-06
申请人： Qualcomm Incorporated
发明人： YOUSSEF, Ahmed A. , ABDELHALEM, Sherif , GHANY, Ehab A. Abdel , CHANG, Li-Chung
IPC分类号： H03F1/22 , H03F1/08 , H03F1/56 , H03F3/189 , H03F3/45
CPC分类号： H03F1/223 , H03F1/08 , H03F1/56 , H03F3/189 , H03F3/45179 , H03F2200/492 , H03G1/0023

5. 发明授权

EP2896130B1 RECEIVER ARCHITECTURE 有权转让
标题翻译：接收机架构
公开(公告)号：EP2896130B1
公开(公告)日：2017-07-05
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

6. 发明公开

EP2984752A1 AMPLIFIERS WITH BOOSTED OR DEBOOSTED SOURCE DEGENERATION INDUCTANCE 审中-公开
标题翻译：具有增强或降压源放大电感的放大器
公开(公告)号：EP2984752A1
公开(公告)日：2016-02-17
申请号：EP14726463.4
申请日：2014-04-01
申请人： Qualcomm Incorporated
发明人： XU, Rui , CHANG, Li-Chung
IPC分类号： H03F1/22 , H03F1/34 , H03F3/193 , H03F3/24 , H03F3/45 , H03F3/72 , H03F3/68
CPC分类号： H03F1/342 , H03F1/223 , H03F3/193 , H03F3/245 , H03F3/45179 , H03F3/68 , H03F3/72 , H03F2200/111 , H03F2200/121 , H03F2200/156 , H03F2200/159 , H03F2200/492 , H03F2200/541 , H03F2203/45302 , H03F2203/45318 , H03F2203/45332 , H03F2203/45386 , H03F2203/45394 , H03F2203/45511 , H03F2203/45534 , H03F2203/7209
摘要： Amplifiers with boosted or deboosted source degeneration inductance are disclosed. In an exemplary design, an apparatus includes an amplifier circuit and a feedback circuit. The amplifier circuit receives an input signal and provides an output signal and includes a source degeneration inductor. The feedback circuit is coupled between a node of the amplifier circuit and the source degeneration inductor. The feedback circuit provides feedback to vary an input impedance of an amplifier including the amplifier circuit and the feedback circuit. The feedback circuit may be programmable and may be enabled to provide feedback or disabled to provide no feedback. Alternatively, the feedback circuit may always be enabled to provide feedback. In either case, the feedback circuit may have a variable gain to provide a variable input impedance for the amplifier.
摘要翻译：公开了具有升压或去振荡源衰减电感的放大器。在示例性设计中，装置包括放大器电路（400）和反馈电路（450）。放大器电路（400）接收输入信号（RFin）并提供输出信号（RFout）并且包括源极负反馈电感器（432）。反馈电路（450）耦合在放大器电路的节点与源极退化电感器（432）之间。反馈电路（450）提供反馈以改变包括放大器电路和反馈电路的放大器的输入阻抗。反馈电路（450）可以是可编程的并且可以被启用以提供反馈或禁用以不提供反馈。或者，可始终使反馈电路（450）能够提供反馈。在任一情况下，反馈电路（450）可具有可变增益以为放大器提供可变输入阻抗。

7. 发明公开

EP2909929A1 AMPLIFIERS WITH NOISE SPLITTING 有权
标题翻译： VERSTÄRKERMIT RAUSCHTEILUNG
公开(公告)号：EP2909929A1
公开(公告)日：2015-08-26
申请号：EP13788822.8
申请日：2013-10-22
申请人： Qualcomm Incorporated
发明人： XU, Rui , CHANG, Li-Chung
IPC分类号： H03F3/19 , H03F1/22 , H03F3/72 , H03F3/21 , H03F1/26 , H03F3/24 , H03F3/68
摘要： Amplifiers with noise splitting to improve noise figure are disclosed. In an exemplary design, an apparatus (e.g., a wireless device, an integrated circuit, etc.) includes a plurality of amplifier circuits and at least one interconnection circuit. The amplifier circuits receive an input radio frequency (RF) signal. The interconnection circuit(s) are coupled between the plurality of amplifier circuits. Each interconnection circuit is closed to short the outputs or internal nodes of two amplifier circuits coupled to that interconnection circuit. The plurality of amplifier circuits may include a plurality of gain circuits coupled to a plurality of current buffers, one gain circuit and one current buffer for each amplifier circuit. Each amplifier circuit provides an output current, which may include a portion of the current from each of the plurality of gain circuits when the plurality of amplifier circuits are enabled.
摘要翻译：公开了具有噪声分离以改善噪声系数的放大器。在示例性设计中，设备（例如，无线设备，集成电路等）包括多个放大器电路和至少一个互连电路。放大器电路接收输入射频（RF）信号。互连电路耦合在多个放大器电路之间。关闭每个互连电路以使耦合到该互连电路的两个放大器电路的输出或内部节点短路。多个放大器电路可以包括耦合到多个电流缓冲器的多个增益电路，每个放大器电路的一个增益电路和一个电流缓冲器。每个放大器电路提供输出电流，当多个放大器电路被使能时，其可以包括来自多个增益电路中的每一个的电流的一部分。

8. 发明公开

EP2430746A1 RECEIVER WITH BALANCED I/Q TRANSFORMER 有权
标题翻译： EMPFÄNGERMIT EINEM SYMMETRISCHEN I / Q-TRANSFORMATOR
公开(公告)号：EP2430746A1
公开(公告)日：2012-03-21
申请号：EP10721893.5
申请日：2010-05-17
申请人： QUALCOMM Incorporated
发明人： CHANG, Li-Chung , BHAGAT, Maulin P. , LEE, Hanil , SRIDHARA, Ravi
IPC分类号： H03D7/14
CPC分类号： H03D7/1466 , H03D7/1458 , H03D7/165 , H03D2200/0082
摘要： A receiver with a balanced I/Q transformer is described. In an exemplary design, the receiver includes an LNA that amplifies a received RF signal and provides a single-ended RF signal to the balanced I/Q transformer. The balanced I/Q transformer includes at least one primary coil and first and second secondary coils. The first secondary coil is magnetically coupled to the at least one primary coil and provides a first differential RF signal to a first mixer. The second secondary coil is magnetically coupled to the at least one primary coil and provides a second differential RF signal to a second mixer. The first and second mixers downconvert the first and second differential RF signals with I and Q LO signals, respectively, and provide differential I and Q downconverted signals. The primary and secondary coils may be fabricated on two conductive layers of an integrated circuit.
摘要翻译：描述了具有平衡I / Q变压器的接收机。在示例性设计中，接收机包括放大接收的RF信号的LNA，并向平衡I / Q变压器提供单端RF信号。平衡I / Q变压器包括至少一个初级线圈和第一和第二次级线圈。第一次级线圈磁耦合到至少一个初级线圈，并向第一混频器提供第一差分RF信号。第二次级线圈磁耦合到至少一个初级线圈，并向第二混频器提供第二差分RF信号。第一和第二混频器分别用I和Q LO信号下变频第一和第二差分RF信号，并提供差分I和Q下变频信号。初级线圈和次级线圈可以制造在集成电路的两个导电层上。

9. 发明授权

EP2959578B1 AMPLIFIERS WITH MULTIPLE OUTPUTS AND CONFIGURABLE DEGENERATION INDUCTOR 有权
公开(公告)号：EP2959578B1
公开(公告)日：2020-02-05
申请号：EP14706227.7
申请日：2014-02-10
申请人： Qualcomm Incorporated
发明人： YOUSSEF, Ahmed A. , CHANG, Li-Chung
IPC分类号： H03F1/22 , H03F3/193 , H03F3/68 , H03F3/72 , H03F3/24

10. 发明授权

EP3342051B1 LOW NOISE AMPLIFIER AND NOTCH FILTER 有权
公开(公告)号：EP3342051B1
公开(公告)日：2019-07-17
申请号：EP16745390.1
申请日：2016-07-25
申请人： QUALCOMM Incorporated
发明人： HEDAYATI, Hajir , DARVISHI, Milad , CHANG, Li-Chung
IPC分类号： H04B1/525 , H04B1/10

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