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公开(公告)号：US10141894B1
公开(公告)日：2018-11-27
申请号：US15640659
申请日：2017-07-03
Applicant: QUALCOMM INCORPORATED
Abstract: A circuit includes a first amplifier path comprising a first amplifier, MA, a second amplifier path comprising a cascode device and a second amplifier, MB, a node defined by a source of the cascode device and a drain of the second amplifier, MB, and a capacitance coupled between the node and a source of the second amplifier, MB.
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公开(公告)号：US20180139078A1
公开(公告)日：2018-05-17
申请号：US15472454
申请日：2017-03-29
Applicant: QUALCOMM Incorporated
Inventor： Ayush Mittal , Bhushan Shanti Asuri , Krishnaswamy Thiagarajan , Sameer Vasantlal Vora , Mahim Ranjan
IPC: H04L25/03
CPC classification number: H04L25/03 , H03D7/1458 , H03D7/165 , H03D2200/0082 , H03D2200/0086 , H03H7/21 , H03H2007/013 , H04B1/0475 , H04L25/03828 , H04L27/36
Abstract: A system includes: a baseband phase generator configured to receive differential in-phase (I) and quadrature (Q) signals and configured to output N phase-shifted baseband signals, wherein N is greater than 4, further wherein the baseband phase generator comprises a plurality of notch filters configured to receive the I and Q signals; and an upconverter configured to receive the phase-shifted baseband signals, to perform mixing on the phase-shifted baseband signals, and to output a differential upconverted signal.
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3.发明授权Transmitter digital-to-analog converter (DAC)-baseband filter (BBF) common mode interface 有权发射机数模转换器（DAC） - 基带滤波器（BBF）共模接口公开(公告)号：US09531337B2
公开(公告)日：2016-12-27
申请号：US14602697
申请日：2015-01-22
Applicant: QUALCOMM Incorporated
Inventor： Minghui Chen , Mahim Ranjan , Jeremy Mark Goldblatt , Frederic Bossu
CPC classification number: H03F3/45479 , H02M2001/123 , H03F3/45475 , H03F3/45556 , H03F2203/45078 , H03F2203/45418 , H03F2203/45424 , H03F2203/45526 , H03M1/0607 , H03M1/66
Abstract: Removing common-mode current from a pair of complementary current signals, including: generating a common-mode voltage of the pair of complementary current signals including at least a first current signal and a second current signal; measuring and outputting a difference voltage between the generated common-mode voltage and a common-mode reference voltage; and removing at least a portion of the common-mode current from the first current signal and the second current signal based on the difference voltage.
Abstract translation: 从一对互补电流信号中去除共模电流，包括：产生包括至少第一电流信号和第二电流信号的一对互补电流信号的共模电压; 测量并输出所产生的共模电压和共模参考电压之间的差分电压; 以及基于所述差电压从所述第一电流信号和所述第二电流信号中去除所述共模电流的至少一部分。
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公开(公告)号：US10348528B2
公开(公告)日：2019-07-09
申请号：US15472454
申请日：2017-03-29
Applicant: QUALCOMM Incorporated
Inventor： Ayush Mittal , Bhushan Shanti Asuri , Krishnaswamy Thiagarajan , Sameer Vasantlal Vora , Mahim Ranjan
Abstract: A system includes: a baseband phase generator configured to receive differential in-phase (I) and quadrature (Q) signals and configured to output N phase-shifted baseband signals, wherein N is greater than 4, further wherein the baseband phase generator comprises a plurality of notch filters configured to receive the I and Q signals; and an upconverter configured to receive the phase-shifted baseband signals, to perform mixing on the phase-shifted baseband signals, and to output a differential upconverted signal.
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公开(公告)号：US10084463B2
公开(公告)日：2018-09-25
申请号：US15413993
申请日：2017-01-24
Applicant: QUALCOMM Incorporated
Inventor： Haim Mendel Weissman , Mahim Ranjan
CPC classification number: H03M1/02 , H03F3/19 , H03F3/245 , H03F2200/294 , H03F2200/451 , H03M1/46 , H04B1/38 , H04L5/00
Abstract: A transceiver including: a reconfigurable circuit including a plurality of units including at least a converter, the converter including: a digital-to-analog converter (DAC); successive approximation register (SAR) logic configured to selectively couple to the DAC; and a plurality of switches configured to reconfigure the plurality of units of the reconfigurable circuit to operate the transceiver in a receive mode or transmit mode.
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Patent Agency Ranking
公开(公告)号：US20150349821A1
公开(公告)日：2015-12-03
申请号：US14664622
申请日：2015-03-20
Applicant: QUALCOMM Incorporated
Inventor： Shailesh Shekhar Rai , Mahim Ranjan , Jeremy Mark Goldblatt , Frederic Bossu , Vijay Chellappa
CPC classification number: H04B1/12 , H04B1/0475 , H04B15/00 , H04B2001/0416
Abstract: An apparatus includes an elliptical inductance-capacitance (LC) filter and a resistive-capacitive (RC) notch filter serially coupled to the elliptical LC filter. The elliptical LC filter and the RC notch filter are configured to filter a radio-frequency (RF) signal received by a feedback receive path.
Abstract translation: 一种装置包括串联耦合到椭圆LC滤波器的椭圆电感电容（LC）滤波器和电阻电容（RC）陷波滤波器。 椭圆LC滤波器和RC陷波滤波器被配置为对由反馈接收路径接收的射频（RF）信号进行滤波。
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公开(公告)号：US10727790B2
公开(公告)日：2020-07-28
申请号：US15963806
申请日：2018-04-26
Applicant: QUALCOMM Incorporated
Inventor： Andreea Balteanu , Mahim Ranjan
Abstract: An output driver with programmable single-ended and differential outputs includes a first switch, a first output attenuator, and a programmable attenuator. The first switch is coupled in a shunt configuration to a first path of a differential output of a first amplifier. The first output attenuator is included in the first path and is coupled to the first switch in accordance with the shunt configuration. The programmable attenuator is included in a second path of the differential output of the first amplifier.
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公开(公告)号：US10581389B1
公开(公告)日：2020-03-03
申请号：US16146525
申请日：2018-09-28
Applicant: QUALCOMM Incorporated
Inventor： Andreea Balteanu , Karthikeya Aruppukottai Boominathan , Mahim Ranjan , Ning Yuan
Abstract: A reconfigurable amplifier load includes a power supply node, a first inductor comprising a first terminal coupled to a first switch, and a second inductor comprising a first terminal coupled to a second switch. The reconfigurable amplifier load further includes a third inductor comprising a first terminal coupled to the first switch. The first switch is configured to selectively couple the first terminal of the third inductor to the power supply node. A fourth inductor comprising a first terminal coupled to the second switch. The second switch is configured to selectively couple the first terminal of the fourth inductor to the power supply node. At least one additional switch configured to selectively couple a second terminal of the first inductor or a second terminal of the second inductor or both the second terminal of the first inductor and the second terminal of the second inductor to the power supply node.
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公开(公告)号：US10348246B1
公开(公告)日：2019-07-09
申请号：US15862567
申请日：2018-01-04
Applicant: Qualcomm Incorporated
Inventor： Ayush Mittal , Krishnaswamy Thiagarajan , Bhushan Shanti Asuri , Mahim Ranjan
Abstract: An apparatus is disclosed for mixer biasing with baseband filter common-mode voltage. In an example aspect, the apparatus includes a mixer, a baseband filter, and a bias circuit. The mixer has a mixer transistor that is coupled to a bias node and a baseband node. The baseband filter is coupled to the mixer via the baseband node. The baseband filter is configured to operate with a common-mode reference voltage that is associated with a common-mode voltage applied at the baseband node. The bias circuit is coupled to the baseband filter and the bias node. The bias circuit is configured to receive the common-mode reference voltage from the baseband filter and generate, at the bias node, a bias voltage for biasing the mixer transistor based on the common-mode reference voltage.
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公开(公告)号：US09762274B2
公开(公告)日：2017-09-12
申请号：US14664622
申请日：2015-03-20
Applicant: QUALCOMM Incorporated
Inventor： Shailesh Shekhar Rai , Mahim Ranjan , Jeremy Mark Goldblatt , Frederic Bossu , Vijay Chellappa
CPC classification number: H04B1/12 , H04B1/0475 , H04B15/00 , H04B2001/0416
Abstract: An apparatus includes an elliptical inductance-capacitance (LC) filter and a resistive-capacitive (RC) notch filter serially coupled to the elliptical LC filter. The elliptical LC filter and the RC notch filter are configured to filter a radio-frequency (RF) signal received by a feedback receive path.
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