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公开(公告)号：US11777449B1
公开(公告)日：2023-10-03
申请号：US17933609
申请日：2022-09-20
Applicant: QUALCOMM Incorporated
Inventor： Kyle David Holland , Jang Joon Lee , Dongling Pan , Aleksandar Miodrag Tasic
CPC classification number: H03D7/1425 , H03D7/12 , H03D2200/0066
Abstract: An apparatus is disclosed for mixing signals. In example aspects, the apparatus includes a mixer circuit having multiple local oscillator nodes, a first node corresponding to a first frequency, and multiple second nodes corresponding to a second frequency. The mixer circuit includes multiple capacitors coupled between the multiple local oscillator nodes and the multiple second nodes. The mixer circuit has multiple switches including a first switch, a second switch, a third switch, and a fourth switch. The multiple switches are coupled between the multiple capacitors and the multiple second nodes. The first switch and the second switch are coupled between the multiple capacitors and the first node. The first switch and the second switch are disposed between the fourth switch and the third switch.
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公开(公告)号：US11658764B2
公开(公告)日：2023-05-23
申请号：US17124368
申请日：2020-12-16
Applicant: QUALCOMM Incorporated
Inventor： Lai Kan Leung , Aleksandar Miodrag Tasic , Francesco Gatta , Chiewcharn Narathong , Kyle David Holland
CPC classification number: H04K3/22 , H03F3/19 , H03M1/12 , H03F2200/294 , H03F2200/451
Abstract: The disclosure relates to an apparatus including a receiver configured to process a radio frequency (RF) signal to generate a baseband signal; a radio frequency (RF) jammer detector configured to generate a signal indicative of whether an RF jammer is present at an input of the receiver; and a receiver bias circuit configured to generate a supply voltage for the receiver based on the RF jammer indication signal. In another aspect, the apparatus includes constant gain bias circuit to maintain the gain of the receiver constant in response to changes in the supply voltage. In other aspects, the receiver bias circuit may suspend the generating of the supply voltage based on the RF jammer indication signal if the power level of the target received signal is above a threshold. In other aspects, the receiver bias circuit changes the supply voltage during cyclic prefix (CP) intervals between downlink intervals.
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43.发明授权公开(公告)号：US11251756B2
公开(公告)日：2022-02-15
申请号：US16692975
申请日：2019-11-22
Applicant: QUALCOMM Incorporated
Inventor： Lai Kan Leung , Aleksandar Miodrag Tasic
Abstract: A reconfigurable power detector is described. The reconfigurable power detector includes a first power detector circuit. The first power detector circuit includes a pair of coupled first-type transistors to switch a first-type positive output and a first-type negative output. The reconfigurable power detector includes a second power detector circuit. The second power detector circuit includes a pair of coupled second-type transistors to switch a second-type positive output and a second-type negative output. The reconfigurable power detector includes a switch matrix. The switch matrix includes switches to select the second-type positive output and the second-type negative output in a first configuration, the first-type positive output and the first-type negative output in a second configuration, and the first-type positive output and the second-type positive output in a third configuration. The reconfigurable power detector also includes a configuration block to program the switches to select an output configuration at a detector output.
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公开(公告)号：US10439858B2
公开(公告)日：2019-10-08
申请号：US15715006
申请日：2017-09-25
Applicant: QUALCOMM Incorporated
Inventor： Aleksandar Miodrag Tasic , Chiewcharn Narathong , Christian Holenstein , Dongling Pan , Yiwu Tang , Rajagopalan Rangarajan , Lai Kan Leung
IPC: H04L27/26 , H04L12/761 , H04L12/709 , H03F1/22 , H04B1/00 , H03F3/193 , H03F3/24 , H04L5/00
Abstract: An apparatus includes a low noise amplifier (LNA) multiplexer configured to receive a plurality of radio frequency (RF) signals at a plurality of input terminals and to combine the plurality of RF signals into a combined RF signal that is output at an output terminal. The LNA multiplexer includes a plurality of input signal paths, and each input signal path is coupleable to a respective input terminal of the plurality of input terminals and is configured to receive a respective RF signal of the plurality of RF signals. The apparatus further includes an LNA demultiplexer configured to receive the combined RF signal at an input port coupled to the output terminal and to distribute the combined RF signal to a plurality of output ports, each output port of the plurality of output ports configured to output the combined RF signal to a respective downconverter of a plurality of downconverters.
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公开(公告)号：US09948239B2
公开(公告)日：2018-04-17
申请号：US15272124
申请日：2016-09-21
Applicant: QUALCOMM Incorporated
Inventor： Kiyong Choi , Yi Zeng , Hong Sun Kim , Sasha Vujcic , Chirag Dipak Patel , Aleksandar Miodrag Tasic , Timothy Donald Gathman , Wu-Hsin Chen , Klaas van Zalinge
CPC classification number: H03D7/1458 , H03D7/1441 , H03D7/1466 , H03F3/193 , H03F3/21 , H03F3/265 , H03F3/72 , H03F2200/09 , H03F2200/294 , H03F2200/451 , H03F2200/537 , H03F2200/541 , H03G3/3052 , H04B1/109 , H04W52/0209
Abstract: A method and apparatus are disclosed for a configurable mixer capable of operating in a linear, a legacy, and a low-power mode. In the linear mode, the configurable mixer is configured to operate as a double-balanced mixer to multiply a first differential signal by a second differential signal. In the legacy mode, the configurable mixer is configured to as a double-balanced mixer to multiply a differential signal by a single-ended signal. In the low-power mode, the configurable mixer is configured to operate as a single-balanced mixer to multiply a differential signal by a single-ended signal. The operating mode of the configurable mixer may be based, at least in part, on a mode control signal. In some embodiments, the configurable mixer may be included in an analog front end of a wireless communication device.
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Patent Agency Ranking
46.发明授权公开(公告)号：US09712226B2
公开(公告)日：2017-07-18
申请号：US14677056
申请日：2015-04-02
Applicant: QUALCOMM Incorporated
Inventor： Lai Kan Leung , Chiewcharn Narathong , Rajagopalan Rangarajan , Dongling Pan , Yiwu Tang , Aleksandar Miodrag Tasic
IPC: H04B1/16 , H04B7/08 , H04L27/152 , H04B1/00
CPC classification number: H04B7/0897 , H04B1/0082 , H04B1/16 , H04L27/152
Abstract: Certain aspects of the present disclosure provide multi-way diversity receivers with multiple synthesizers. Such a multi-way diversity receiver may be implemented in a carrier aggregation (CA) transceiver. One example wireless reception diversity circuit generally includes three or more receive paths for processing received signals and two or more frequency synthesizing circuits configured to generate local oscillating signals to downconvert the received signals. Each of the frequency synthesizing circuits is shared by at most two of the receive paths, and each pair of the frequency synthesizing circuits may generate a pair of local oscillating signals having the same frequency.
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47.发明授权公开(公告)号：US09681447B2
公开(公告)日：2017-06-13
申请号：US14636591
申请日：2015-03-03
Applicant: QUALCOMM Incorporated
Inventor： Yiwu Tang , Rajagopalan Rangarajan , Chiewcharn Narathong , Lai Kan Leung , Aleksandar Miodrag Tasic , Dongling Pan
CPC classification number: H04W72/0453 , H04B1/16 , H04B1/30 , H04B1/38 , H04L5/001 , H04L5/003 , H04L27/2647
Abstract: Certain aspects of the present disclosure provide methods and apparatus for dynamically adjusting a voltage-controlled oscillator (VCO) frequency, a local oscillator (LO) divider ratio, and/or a receive path when adding or discontinuing reception of a component carrier (CC) in a carrier aggregation (CA) scheme. This dynamic adjustment is utilized to avoid (or at least reduce) VCO, LO, and transmit signal coupling issues with multiple component carriers, with minimal (or at least reduced) current consumption by the VCO and the LO divider.
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公开(公告)号：US20150334711A1
公开(公告)日：2015-11-19
申请号：US14644677
申请日：2015-03-11
Applicant: QUALCOMM Incorporated
Inventor： Rajagopalan Rangarajan , Chiewcharn Narathong , Lai Kan Leung , Dongling Pan , Aleksandar Miodrag Tasic , Yiwu Tang
IPC: H04W72/04 , H04W88/06 , H04L12/709
CPC classification number: H04W72/0453 , H04B1/005 , H04B15/06 , H04L45/245 , H04W88/06
Abstract: Methods and apparatus including: setting up a plurality of configurations for a plurality of local oscillator (LO) paths of a carrier aggregation (CA) transceiver operating with a plurality of bands; calculating and comparing frequencies for each LO path of the plurality of LO paths and at least one divider ratio of LO dividers for each band of the plurality of bands to identify frequency conflicts; and reconfiguring the LO dividers for the plurality of LO paths and the plurality of bands when the frequency conflicts are identified.
Abstract translation: 一种方法和装置，包括：为多个频带操作的载波聚合（CA）收发机的多个本地振荡器（LO）路径建立多个配置; 计算和比较所述多个LO路径中的每个LO路径的频率和所述多个频带中的每个频带的LO分频器的至少一个分频比，以识别频率冲突; 以及当识别出频率冲突时，为多个LO路径和多个频带重新配置LO分频器。
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公开(公告)号：US20150280673A1
公开(公告)日：2015-10-01
申请号：US14231103
申请日：2014-03-31
Applicant: QUALCOMM Incorporated
IPC: H03G3/30
CPC classification number: H03G3/3036 , H04B1/0003 , H04B1/005 , H04B1/1027
Abstract: A device includes a reconfigurable receiver front end having variable gain and variable bandwidth configured to tune to a plurality of communication channels in a communication band, the reconfigurable receiver front end responsive to a signal power level.
Abstract translation: 一种设备包括具有可变增益和可变带宽的可重构接收机前端，其被配置为调谐到通信频带中的多个通信信道，所述可重新配置的接收机前端响应于信号功率电平。
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50.发明申请公开(公告)号：US20150163747A1
公开(公告)日：2015-06-11
申请号：US14102646
申请日：2013-12-11
Applicant: QUALCOMM Incorporated
Inventor： Wu-Hsin Chen , Gary Lee Brown, JR. , Chuan Wang , Aleksandar Miodrag Tasic
CPC classification number: H04W52/0238 , H04B1/109 , H04B1/525 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/164 , Y02D70/40
Abstract: A device includes a common gate buffer circuit configured to receive a communication signal, an interfering signal detector configured to provide a control signal indicative of the power level of an interfering signal present with the communication signal and a control circuit configured to control an amount of current flowing through the common gate buffer circuit based on the control signal.
Abstract translation: 一种设备包括被配置为接收通信信号的公共门缓冲器电路，被配置为提供表示与通信信号一起存在的干扰信号的功率电平的控制信号的干扰信号检测器，以及被配置为控制电流量的控制电路 基于控制信号流过公共门缓冲电路。
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