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公开(公告)号：US09622177B2
公开(公告)日：2017-04-11
申请号：US14820340
申请日：2015-08-06
Applicant: QUALCOMM Incorporated
Inventor： Tadeusz Jarosinski , Shankar Sadasivam , Ryan Michael Carey , Jinwon Lee , Bhuwan Dhingra , Abhijeet Bisain , Vitor Rocha de Carvalho , Rajeev Jain , Muralidhar Reddy Akula , Ashwin Swaminathan
CPC classification number: H04W52/0225 , G06F1/3215 , H04L43/16 , H04M1/72569 , Y02D70/00 , Y02D70/1242 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/162 , Y02D70/164 , Y02D70/166 , Y02D70/26
Abstract: A context aware system, for use in a mobile device, includes a context change detector (CCD) coupled to a context classifier (CCL). The CCD is configured to receive sensor data and to detect a change in a current context state of the mobile device based on the received sensor data. The CCL is configured to transition from a low power consumption mode to a normal power consumption mode in response to the CCD detecting the change in the current context state. The CCL is further configured to determine a next context state of the mobile device while in the normal power consumption mode.
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公开(公告)号：US20160266598A1
公开(公告)日：2016-09-15
申请号：US14643981
申请日：2015-03-10
Applicant: QUALCOMM Incorporated
Inventor： Mong Chit Wong , Nam Van Dang , Rajeev Jain , Bo-Ren Wang , Sassan Shahrokhinia
IPC: G05F3/26
Abstract: Systems and methods for producing reference voltages are disclosed. An example bandgap reference circuit includes a core bandgap module that produces a bias control for biasing the gate of a transistor to produce a proportional to absolute temperature current. The core bandgap module may use an operational amplifier that uses auto-calibration to reduce its input offset voltage. A trimming module uses the bias control to produce a proportional to absolute temperature current that is combined with a trim current and supplied to a resistor and diode to produce a trimmed bandgap voltage. The trimmed bandgap voltage is buffered to produce a reference voltage output. The trim current may be set based on a room temperature measurement of the reference voltage output.
Abstract translation: 公开了用于产生参考电压的系统和方法。 一个示例性带隙基准电路包括一个核心带隙模块，其产生用于偏置晶体管栅极以产生与绝对温度电流成比例的偏置控制。 核心带隙模块可以使用使用自动校准的运算放大器来减少其输入失调电压。 修整模块使用偏置控制来产生与绝缘温度电流成比例的结合微调电流并提供给电阻和二极管以产生修整的带隙电压。 修整的带隙电压被缓冲以产生参考电压输出。 可以基于参考电压输出的室温测量来设置微调电流。
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公开(公告)号：US09176511B1
公开(公告)日：2015-11-03
申请号：US14254279
申请日：2014-04-16
Applicant: QUALCOMM Incorporated
Inventor： Nam Van Dang , Rajeev Jain , Terrence Brian Remple , Jingcheng Zhuang , Mong Chit Wong
Abstract: A series of current repeaters with localized feedback is provided. Each current that precedes a subsequent current repeater in the series is configured to receive a feedback current from the subsequent current repeater and generate an error signal accordingly with a differential amplifier so as to reduce current repetition errors that would otherwise result from an offset voltage in the differential amplifier.
Abstract translation: 提供了一系列具有局部反馈的电流中继器。 在串联中的随后的当前中继器之前的每个电流被配置为从随后的当前中继器接收反馈电流，并且相应地使用差分放大器产生误差信号，以便减少否则由于偏置电压而产生的电流重复误差 差分放大器。
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公开(公告)号：US20180284859A1
公开(公告)日：2018-10-04
申请号：US15471692
申请日：2017-03-28
Applicant: QUALCOMM Incorporated
Inventor： Harshat Pant , Rajeev Jain , Sassan Shahrokhinia , Lam Ho
IPC: G06F1/26
Abstract: An integrated circuit is disclosed for power multiplexing with an active load. In an example aspect, the integrated circuit includes a first power rail, a second power rail, a load power rail, multiple power-multiplexer tiles, and power-multiplexer control circuitry. The first power rail is at a first voltage, and the second power rail is at a second voltage. The multiple power-multiplexer tiles are coupled in series in a chained arrangement and jointly perform a power-multiplexing operation responsive to a power-rail switching signal. Each power-multiplexer tile switches between coupling the load power rail to the first power rail and the second power rail. The power-multiplexer control circuitry is coupled to the first and second power rails and includes a comparator to produce a relative voltage signal based on the first and second voltages. The power-multiplexer control circuitry generates the power-rail switching signal based on the relative voltage signal.
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公开(公告)号：US20180004276A1
公开(公告)日：2018-01-04
申请号：US15199567
申请日：2016-06-30
Applicant: QUALCOMM Incorporated
Inventor： Mong Chit Wong , Nam Dang , Rajeev Jain , Sassan Shahrokhinia , Yu Huang , Lipeng Cao
IPC: G06F1/32
Abstract: An integrated circuit (IC) is disclosed herein for adaptive power multiplexing with a power distribution network. In an example aspect, the integrated circuit includes a first power rail, a second power rail, and a load power rail. The integrated circuit also includes multiple power-multiplexer tiles and power-multiplexer control circuitry. The multiple power-multiplexer tiles are coupled in series in a chained arrangement and configured to jointly perform a power-multiplexing operation. Each power-multiplexer tile is configured to switch between coupling the load power rail to the first power rail and coupling the load power rail to the second power rail. The power-multiplexer control circuitry is configured to control a direction of current flow to prevent cross-conduction between the first power rail and the second power rail during the power-multiplexing operation.
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Patent Agency Ranking
公开(公告)号：US20160317127A1
公开(公告)日：2016-11-03
申请号：US15140006
申请日：2016-04-27
Applicant: QUALCOMM Incorporated
Inventor： Ricardo Paulo dos Santos Mendonca , Patrik Nils Lundqvist , Rashid Ahmed Akbar Attar , Rajeev Jain , Padmapriya Jagannathan
CPC classification number: A61B8/4254 , A61B8/4245 , A61B8/4427 , A61B8/4444 , A61B8/4477 , A61B8/4483 , A61B8/467 , A61B8/483 , A61B8/5223 , A61B8/5238 , A61B8/5253 , A61B8/5269 , A61B8/5276 , A61B8/54 , A61B8/56 , A61B8/58 , G01C21/165 , G06F19/00
Abstract: An ultrasonic imaging probe includes one or more ultrasonic transducers and one or more processors communicatively coupled with the one or more ultrasonic transducers. The one or more processors are configured to receive data from the one or more ultrasonic transducers and establish settings of the ultrasonic imaging probe based on the received data.
Abstract translation: 超声波成像探头包括一个或多个超声波换能器和与该一个或多个超声换能器通信耦合的一个或多个处理器。 所述一个或多个处理器被配置为从所述一个或多个超声波换能器接收数据，并且基于所接收的数据建立所述超声波成像探针的设置。
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公开(公告)号：US20150301539A1
公开(公告)日：2015-10-22
申请号：US14254279
申请日：2014-04-16
Applicant: QUALCOMM Incorporated
Inventor： Nam Van Dang , Rajeev Jain , Terrence Brian Remple , Jingcheng Zhuang , Mong Chit Wong
IPC: G05F1/46
Abstract: A series of current repeaters with localized feedback is provided. Each current that precedes a subsequent current repeater in the series is configured to receive a feedback current from the subsequent current repeater and generate an error signal accordingly with a differential amplifier so as to reduce current repetition errors that would otherwise result from an offset voltage in the differential amplifier.
Abstract translation: 提供了一系列具有局部反馈的电流中继器。 在串联中的随后的当前中继器之前的每个电流被配置为从随后的当前中继器接收反馈电流，并且相应地使用差分放大器产生误差信号，以便减少否则由于偏置电压而产生的电流重复误差 差分放大器。
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公开(公告)号：US11157066B2
公开(公告)日：2021-10-26
申请号：US16690680
申请日：2019-11-21
Applicant: QUALCOMM Incorporated
Inventor： Byron Murphy , Rajeev Jain , Lipeng Cao , Harshat Pant
IPC: G06F1/26 , G06F1/3287 , G06F1/3234 , G06F1/3293
Abstract: A floorplan independent and cross-current free distributed adaptive power multiplexer (APM) is disclosed. In some implementations, an APM includes a first switch path coupled between a first voltage supply rail and an output terminal, the first switch path including a first switch; a second switch path coupled between a second voltage supply rail and the output terminal, the second switch path including a second switch, wherein the first switch and the second switch are configured to select one of a first voltage supply and a second voltage supply as an output voltage supply to be output at the voltage output terminal; and a comparator coupled to the first and the second voltage supply rails, and the voltage output terminal, wherein the comparator is configured to compare the output voltage supply with one of the first and the second voltage supplies and to output a control signal.
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公开(公告)号：US11047946B2
公开(公告)日：2021-06-29
申请号：US15974271
申请日：2018-05-08
Applicant: QUALCOMM Incorporated
Inventor： Nam Dang , Rajeev Jain , Swarna Navubothu , Alan Lewis , Martin Saint-Laurent , Tung Nang Pham , Joseph Terregrossa , Paras Gupta , Somasekhar Maradani
Abstract: Aspects of the disclosure are directed to voltage-based current sensing. In accordance with one aspect, voltage-based current sensing may include performing a coarse calibration of a voltage based current sensor to determine a coarse offset; performing a fine calibration of the voltage based current sensor to determine a fine offset; performing a frequency calibration of the voltage based current sensor to determine a frequency offset; and performing a transfer function calibration of the voltage based current sensor to determine a sensor transfer function using one or more of the coarse offset, the fine offset and the frequency offset; and measuring a load current using the sensor transfer function.
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公开(公告)号：US10734985B2
公开(公告)日：2020-08-04
申请号：US16375734
申请日：2019-04-04
Applicant: QUALCOMM Incorporated
Inventor： Byron Murphy , Glenn Murphy , Rajeev Jain
Abstract: In certain aspects, a comparator includes a first inverter having an input, an output, and a voltage supply input, wherein the input of the first inverter and the output of the first inverter are coupled together, and the voltage supply input of the first inverter is configured to receive a first compare voltage. The comparator also includes a second inverter having an input, an output, and a voltage supply input, wherein the input of the second inverter is coupled to the output of the first inverter, and the voltage supply input of the second inverter is configured to receive a second compare voltage.
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