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公开(公告)号：US20160142231A1
公开(公告)日：2016-05-19
申请号：US14540900
申请日：2014-11-13
Applicant: QUALCOMM Incorporated
Inventor： Gireesh Rajendran , Gurkanwal Singh Sahota , Rakesh Kumar
CPC classification number: H04L27/0002 , H03F1/223 , H03F1/26 , H03F1/301 , H03F1/3205 , H03F3/68 , H03F3/72 , H03F2200/111 , H03F2200/294 , H03F2200/492 , H03F2200/541 , H03F2203/7209 , H04B1/006 , H04L5/0042 , H04L27/2649
Abstract: A receiver front end architecture for intra band carrier aggregation is disclosed. In an exemplary embodiment, an apparatus includes a first transistor having a gate terminal to receive an input signal, drain terminal to output an amplified signal, and a source terminal connected to a signal ground by a source degeneration inductor. The apparatus also includes a second transistor having a source terminal connected to the drain terminal of the first transistor and a drain terminal connected to a first load. The apparatus also includes a third transistor having a gate terminal connected to the drain terminal of the first transistor, a drain terminal connected to a second load and a source terminal connected to a signal ground.
Abstract translation: 公开了用于带内载波聚合的接收机前端架构。 在示例性实施例中，一种装置包括：第一晶体管，其具有用于接收输入信号的栅极端子，用于输出放大信号的漏极端子以及由源极退化电感器连接到信号地的源极端子。 该装置还包括具有连接到第一晶体管的漏极端子的源极端子和连接到第一负载的漏极端子的第二晶体管。 该装置还包括具有连接到第一晶体管的漏极端的栅极端子的第三晶体管，连接到第二负载的漏极端子和连接到信号地的源极端子。
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公开(公告)号：US20150162895A1
公开(公告)日：2015-06-11
申请号：US14103645
申请日：2013-12-11
Applicant: QUALCOMM Incorporated
Inventor： Gireesh Rajendran , Rakesh Kumar , Vinod Venugopal Panikkath , Ayush Mittal , Alok Joshi
CPC classification number: H03H11/1213 , G05F1/445 , H02M11/00 , H03H11/045 , H03H2011/0483
Abstract: An area efficient baseband filter is disclosed. In an exemplary embodiment, an apparatus includes a current to voltage (I-V) filter configured to receive an input current signal at an input port and generate a filtered output voltage signal at an output port based on a feedback transconductance. The input current signal comprises an input DC current in addition to a signal current. The apparatus also includes a feedback circuit connected between the output port and the input port, the feedback circuit having at least one transistor configured to couple the input DC current to a signal ground and to provide the feedback transconductance for the I-V filter.
Abstract translation: 公开了一种区域有效的基带滤波器。 在一个示例性实施例中，一种装置包括电流 - 电压（I-V）滤波器，其被配置为在输入端口处接收输入电流信号，并且基于反馈跨导在输出端口处生成经滤波的输出电压信号。 除了信号电流之外，输入电流信号包括输入DC电流。 该装置还包括连接在输出端口和输入端口之间的反馈电路，反馈电路具有至少一个晶体管，其被配置为将输入的DC电流耦合到信号地，并为I-V滤波器提供反馈跨导。
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公开(公告)号：US09660585B2
公开(公告)日：2017-05-23
申请号：US14742351
申请日：2015-06-17
Applicant: QUALCOMM Incorporated
Inventor： Ayush Mittal , Gireesh Rajendran , Rahul Karmaker
CPC classification number: H03F1/0205 , H03F3/19 , H03F3/211 , H03F3/245 , H03F3/3022 , H03F3/45192 , H03F3/45219 , H03F3/45654 , H03F2200/294 , H03F2200/451 , H03F2203/21106 , H03F2203/30015 , H03F2203/45008 , H03F2203/45134
Abstract: A class AB amplifier may include an input stage, a first folded cascode stage, a second folded cascode stage, and a class AB output stage. In some embodiments, the class AB output stage may provide differential output signals. The common-mode voltage of the differential output signals may be controlled via a correction signal coupled to a selected folded cascode stage. The correction signal may control the common-mode voltage of the differential output signals by altering bias currents within the selected folded cascode stage. The other cascode stage may include bias currents controlled by relatively fixed bias voltages.
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公开(公告)号：US20170033757A1
公开(公告)日：2017-02-02
申请号：US14810166
申请日：2015-07-27
Applicant: QUALCOMM Incorporated
Inventor： Gireesh Rajendran , Alok Prakash Joshi , Apu Sivadas
CPC classification number: H03H7/0115 , H01F38/14 , H01F2038/146 , H03F3/191 , H03F3/195 , H03H7/0153 , H03H11/52 , H03H2007/013
Abstract: A notch filter including an inductor-capacitor tuning circuit is disclosed. The inductor-capacitor tuning circuit may determine a frequency response of the notch filter in accordance with an associated resonant frequency. In some exemplary embodiments, the inductor-capacitor circuit may include a differential inductor divided at a symmetry point and a variable capacitor coupled to the differential inductor at the symmetry point.
Abstract translation: 公开了一种包括电感 - 电容调谐电路的陷波滤波器。 电感器 - 电容调谐电路可以根据相关联的谐振频率确定陷波滤波器的频率响应。 在一些示例性实施例中，电感器 - 电容器电路可以包括在对称点处分开的差分电感器和在对称点处耦合到差分电感器的可变电容器。
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公开(公告)号：US09554413B2
公开(公告)日：2017-01-24
申请号：US14615348
申请日：2015-02-05
Applicant: QUALCOMM Incorporated
Inventor： Gangadhar Burra , MeeLan Lee , Gireesh Rajendran , Anup Savla , Jeremy Lin , Soumya Das , Bongyong Song
CPC classification number: H04W76/16 , H04B1/406 , H04W28/0284 , H04W36/0066 , H04W36/14 , H04W36/30 , H04W88/06
Abstract: One aspect of an apparatus for wireless communications is disclosed. The apparatus includes a controller, a first transceiver, and a second transceiver. The first transceiver is configurable by the controller to support first communications through a cellular network to at least one of a packet-based network and a circuit-switched network. The second transceiver configurable by the controller to operate with the first transceiver to support first communications through the cellular network in a first mode and support second communications through an access point to the packet-based network in a second mode. In an aspect, the second transceiver is further configured to switch from the first mode to the second mode by moving its wireless connection from the cellular network to the access point while maintaining a network-layer connection to the cellular network.
Abstract translation: 公开了一种无线通信装置的一个方面。 该装置包括控制器，第一收发器和第二收发器。 第一收发器可由控制器配置以支持通过蜂窝网络的第一通信至基于分组的网络和电路交换网络中的至少一个。 所述第二收发机可由所述控制器配置以与所述第一收发器一起操作以支持通过所述蜂窝网络以第一模式的第一通信，并且在第二模式中支持通过所述基于分组的网络的接入点的第二通信。 在一方面，第二收发器还被配置为通过将其无线连接从蜂窝网络移动到接入点，同时保持到蜂窝网络的网络层连接，从第一模式切换到第二模式。
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Patent Agency Ranking
公开(公告)号：US09160309B2
公开(公告)日：2015-10-13
申请号：US14103645
申请日：2013-12-11
Applicant: QUALCOMM Incorporated
Inventor： Gireesh Rajendran , Rakesh Kumar , Vinod Venugopal Panikkath , Ayush Mittal , Alok Joshi
CPC classification number: H03H11/1213 , G05F1/445 , H02M11/00 , H03H11/045 , H03H2011/0483
Abstract: An area efficient baseband filter is disclosed. In an exemplary embodiment, an apparatus includes a current to voltage (I-V) filter configured to receive an input current signal at an input port and generate a filtered output voltage signal at an output port based on a feedback transconductance. The input current signal comprises an input DC current in addition to a signal current. The apparatus also includes a feedback circuit connected between the output port and the input port, the feedback circuit having at least one transistor configured to couple the input DC current to a signal ground and to provide the feedback transconductance for the I-V filter.
Abstract translation: 公开了一种区域有效的基带滤波器。 在一个示例性实施例中，一种装置包括电流 - 电压（I-V）滤波器，其被配置为在输入端口处接收输入电流信号，并且基于反馈跨导在输出端口处生成经滤波的输出电压信号。 除了信号电流之外，输入电流信号包括输入DC电流。 该装置还包括连接在输出端口和输入端口之间的反馈电路，反馈电路具有至少一个晶体管，其被配置为将输入的DC电流耦合到信号地，并为I-V滤波器提供反馈跨导。
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公开(公告)号：US10382036B2
公开(公告)日：2019-08-13
申请号：US14608643
申请日：2015-01-29
Applicant: QUALCOMM Incorporated
Inventor： Alok Prakash Joshi , Gireesh Rajendran
IPC: H03K17/10 , H03K17/693
Abstract: Disclosed is circuitry for operating a switch which sees high voltage swings across its source, gate, drain, and bulk terminals. The circuitry generates one or more bias voltages in proportion to an input voltage swing. The one or more bias voltages may be used to bias the gate and bulk terminals to provide reliable and improved turn OFF performance in the switch.
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公开(公告)号：US20160079946A1
公开(公告)日：2016-03-17
申请号：US14485368
申请日：2014-09-12
Applicant: QUALCOMM Incorporated
Inventor： Gireesh Rajendran , Rakesh Kumar , Manohar Seetharam
IPC: H03G3/30
CPC classification number: H03G3/3042 , H03F1/223 , H03F1/26 , H03F3/193 , H03F3/195 , H03F3/245 , H03F3/68 , H03F3/72 , H03F2200/111 , H03F2200/294 , H03F2200/492 , H03F2203/7209
Abstract: An apparatus includes a first transistor configured to amplify first signal components within a first frequency band of a radio frequency signal, a second transistor configured to amplify second signal components within a second frequency band of the radio frequency signal, and a third transistor configured to amplify third signal components within a third frequency band of the radio frequency signal. The apparatus also includes a degeneration inductor having a first tapping point, a second tapping point, and a third tapping point. The first tapping point is coupled to the first transistor, the second tapping point is coupled to the second transistor, and the third tapping point is coupled to the third transistor.
Abstract translation: 一种装置包括：第一晶体管，被配置为放大射频信号的第一频带内的第一信号分量;第二晶体管，被配置为放大射频信号的第二频带内的第二信号分量，以及第三晶体管， 第三信号分量在射频信号的第三频带内。 该装置还包括具有第一分接点，第二分接点和第三分接点的退化电感器。 第一抽头点耦合到第一晶体管，第二抽头点耦合到第二晶体管，第三抽头点耦合到第三晶体管。
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公开(公告)号：US09692375B2
公开(公告)日：2017-06-27
申请号：US14856964
申请日：2015-09-17
Applicant: QUALCOMM Incorporated
Inventor： Alok Prakash Joshi , Gireesh Rajendran
IPC: H03F3/45
CPC classification number: H03F3/45183 , H03F1/3211 , H03F3/45475 , H03F2203/45038 , H03F2203/45154 , H03F2203/45288 , H03F2203/45481
Abstract: Disclosed is a circuit having a differential stage comprising a pair or transistors. The transistors are biased by respective bias transistors. Each bias transistor has a respective feedback network configured to reduce transconductance of the bias transistor, to increase a gain of the differential stage.
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公开(公告)号：US09608569B2
公开(公告)日：2017-03-28
申请号：US14806334
申请日：2015-07-22
Applicant: QUALCOMM Incorporated
Inventor： Bhushan Shanti Asuri , Alok Prakash Joshi , Gireesh Rajendran
CPC classification number: H03F1/0205 , H03C3/08 , H03F1/3205 , H03F3/193 , H03F2200/129 , H03F2200/165 , H03F2200/451 , H03F2200/456 , H03H11/04 , H03H11/12 , H04B1/30
Abstract: A method and apparatus for linearizing a baseband filter are provided. The apparatus is configured to, via a first conducting module, receive a first current signal. The apparatus is further configured to, via a converting module, receive a second current signal, generate a voltage signal based on the second current signal, and apply the voltage signal to the first conducting module. An amount of the second current signal received by the converting module is based on an amount of the first current signal flowing through the first conducting module. The apparatus is also configured to, via a second conducting module, control an output current signal based on the voltage signal. The output current signal is controlled to be a linear replica of the first current signal for in-band frequencies.
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