公开(公告)号：US08754706B2

公开(公告)日：2014-06-17

申请号：US13490707

申请日：2012-06-07

Applicant: Prasad Srinivasa Siva Gudem ,  Ketan Humnabadkar ,  Vijay K. Chellappa ,  Sumit Verma

Inventor： Prasad Srinivasa Siva Gudem ,  Ketan Humnabadkar ,  Vijay K. Chellappa ,  Sumit Verma

IPC: H03G3/20

CPC classification number: H03F1/0255

Abstract: A power train amplification stage is described. The power train amplification stage includes a power amplifier. The power train amplification stage also includes a switched mode power supply that provides a bias voltage to the power amplifier. The power train amplification stage further includes a pulse density modulator. The power train amplification stage also includes a feedback path from the power amplifier to the pulse density modulator.

Abstract translation: 描述了动力传动系放大级。 动力传动系放大级包括功率放大器。 动力传动系放大级还包括向功率放大器提供偏置电压的开关模式电源。 动力传动系放大级还包括脉冲密度调制器。 传动系放大级还包括从功率放大器到脉冲密度调制器的反馈路径。

公开(公告)号：US08454680B2

公开(公告)日：2013-06-04

申请号：US12896092

申请日：2010-10-01

Applicant: Sumit Verma

Inventor： Sumit Verma

IPC: A61F2/06 ,  A61F11/00

CPC classification number: A61M25/10 ,  A61B17/12022 ,  A61B17/1204 ,  A61B17/12122 ,  A61B2017/00243 ,  A61B2017/00252 ,  A61B2017/22067 ,  A61B2090/0815 ,  A61M2025/1081 ,  A61N1/056 ,  A61N2001/0578

Abstract: An endovascular conduit device and method for use during cardiac lead extraction and other vascular procedures is presented. The endovascular conduit device includes an outer-sheath, a conduit member, a lumen member, and an inflation member to control the flow of fluid within the conduit member. The endovascular conduit device may be positioned intravascularly as cardiac lead extraction or other procedures are performed. If necessary, as in the case of a vascular tear, the endovascular conduit device further includes expandable members that are activated to allow blood to be forced into the channel of the conduit member. Blood may then be contained and directed safely to bypass the area of vessel injury. In doing so, a catastrophic circulatory collapse or shock is prevented.

Abstract translation: 提出了在心脏铅提取和其他血管程序期间使用的血管内导管装置和方法。 血管内导管装置包括外鞘，导管构件，内腔构件和膨胀构件，以控制导管构件内的流体流动。 血管内导管装置可以作为心脏引导提取或其他手术进行血管内定位。 如果需要，如在血管撕裂的情况下，血管内导管装置还包括被启动以允许血液被迫进入导管构件的通道的可扩张构件。 然后可以将血液包裹并引导安全地绕过血管损伤区域。 在这样做时，会发生灾难性的循环衰竭或休克。

公开(公告)号：US20130003617A1

公开(公告)日：2013-01-03

申请号：US13172660

申请日：2011-06-29

Applicant: Prasad Srinivasa Siva Gudem ,  Tamer Adel Kadous ,  Sumit Verma ,  Li-chung Chang

Inventor： Prasad Srinivasa Siva Gudem ,  Tamer Adel Kadous ,  Sumit Verma ,  Li-chung Chang

IPC: H04W88/02

CPC classification number: H04B1/525 ,  H04B1/109 ,  H04B1/70712

Abstract: A receiver with bypass mode for improved sensitivity is disclosed. An apparatus is provided that includes a non-bypass signal path coupled to a receiver, the non-bypass signal path comprising a filter, a bypass signal path coupled to the receiver, the bypass signal path configure to bypass the filter, and a switch configured to couple an antenna to the non-bypass signal path during time intervals when signals transmitted by a related local transmitter are transmitted with a signal power that exceeds a threshold, and to couple the antenna to the bypass signal path during other time intervals. In another aspect, the switch is configured to couple the antenna to the non-bypass signal path during time intervals when a jamming signal in a selected frequency range is received with a signal power that exceeds a threshold, and to couple the antenna to the bypass signal path during other time intervals.

Abstract translation: 公开了一种具有旁路模式以提高灵敏度的接收机。 提供了一种装置，其包括耦合到接收器的非旁路信号路径，非旁路信号路径包括滤波器，耦合到接收器的旁路信号路径，配置为绕过滤波器的旁路信号路径和配置的开关 在由相关本地发射机发送的信号以超过阈值的信号功率发射的时间间隔内将天线耦合到非旁路信号路径，并且在其他时间间隔期间将天线耦合到旁路信号路径。 在另一方面，所述开关被配置为在以超过阈值的信号功率接收到所选频率范围内的干扰信号的时间间隔期间将天线耦合到非旁路信号路径，并且将天线耦合到旁路 信号路径在其他时间间隔。

公开(公告)号：US20110143697A1

公开(公告)日：2011-06-16

申请号：US12870576

申请日：2010-08-27

Applicant: Sumit Verma ,  Marco Cassia ,  Brian Clarke Banister

Inventor： Sumit Verma ,  Marco Cassia ,  Brian Clarke Banister

IPC: H04B1/04

CPC classification number: H04L27/367

Abstract: In-Phase (I) and Quadrature (Q) signals passing from a modem into a direct conversion transmitter are predistorted separately from, and independently of, one another. The I signal is predistorted to compensate for nonlinearities in the baseband I path circuitry between the modem and the upconverter. The Q signal is predistorted to compensate for nonlinearities in the baseband Q path circuitry between the modem and the upconverter. By employing the separate I and Q path baseband predistortion method, 4FMOD power in the upconverted and amplified signal as supplied to the transmitter antenna is reduced or eliminated. In one example, the transmitter employs single sideband modulation in the 777-787 MHz Verizon Band 13 while transmitting 23 dBm in a single LTE RB without emitting more than −57 dBm/6.25 kHz 4FMOD power into a nearby 763-775 MHz public safety band that starts only two megahertz away from the lower bound of Band 13.

Abstract translation: 从调制解调器传送到直接转换发射机的同相（I）和正交（Q）信号是彼此独立地进行预失真的。 I信号被预失真以补偿调制解调器和上变频器之间的基带I路径电路中的非线性。 Q信号被预失真以补偿调制解调器和上变频器之间的基带Q路径电路中的非线性。 通过采用单独的I和Q路径基带预失真方法，降低或消除了提供给发射机天线的上变频和放大信号中的4FMOD功率。 在一个示例中，发射机在777-787MHz Verizon Band 13中采用单边带调制，同时在单个LTE RB中传输23 dBm，而不会在附近的763-775 MHz公共安全频段发射超过-57 dBm / 6.25 kHz 4FMOD功率 它距离Band 13的下边缘只有两兆赫兹。

公开(公告)号：US20100010502A1

公开(公告)日：2010-01-14

申请号：US12500832

申请日：2009-07-10

Applicant: Sumit Verma

Inventor： Sumit Verma

IPC: A61B17/00

CPC classification number: A61N1/056 ,  A61B17/3468 ,  A61B2017/22067 ,  A61M25/10 ,  A61M2025/1081 ,  A61N2001/0578

Abstract: An endovascular conduit device and method for use during cardiac lead extraction and other vascular procedures is presented. The endovascular conduit device includes an outer-sheath, a conduit member, a lumen member, and an inflation member to control the flow of fluid within the conduit member. The endovascular conduit device may be positioned intravascularly as cardiac lead extraction or other procedures are performed. If necessary, as in the case of a vascular tear, the endovascular conduit device further includes expandable members that are activated to allow blood to be forced into the channel of the conduit member. Blood may then be contained and directed safely to bypass the area of vessel injury. In doing so, a catastrophic circulatory collapse or shock is prevented.

Abstract translation: 提出了在心脏铅提取和其他血管程序期间使用的血管内导管装置和方法。 血管内导管装置包括外鞘，导管构件，内腔构件和膨胀构件，以控制导管构件内的流体流动。 血管内导管装置可以作为心脏引导提取或其他手术进行血管内定位。 如果需要，如在血管撕裂的情况下，血管内导管装置还包括被启动以允许血液被迫进入导管构件的通道的可扩张构件。 然后可以将血液包裹并引导安全地绕过血管损伤区域。 在这样做时，会发生灾难性的循环衰竭或休克。

公开(公告)号：US20050070981A1

公开(公告)日：2005-03-31

申请号：US10945418

申请日：2004-09-20

Applicant: Sumit Verma

Inventor： Sumit Verma

IPC: A61N1/05 ,  A61F7/00

CPC classification number: A61N1/057 ,  A61N1/0573 ,  A61N2001/0585

Abstract: An active fixation coronary sinus lead apparatus includes electrode support means which include an electrode support longitudinal axis. A plurality of electrode segments are supported by the electrode support means and are arrayed around the electrode support longitudinal axis. A plurality of insulation segments are supported by the electrode support means and are arrayed around the electrode support longitudinal axis at positions opposite to the electrode segments. In this respect, the insulation segments are interspersed between the electrode segments. Electrode segment orientation means are connected to the electrode support means for selectively orienting the electrode segments and the insulation segments around the electrode support longitudinal axis. Vessel anchoring means, which can include three flexible anchor wing portions, are connected to the electrode support means for anchoring the apparatus to an interior wall of a blood vessel. A pressure monitoring system can be connected to the vessel anchoring means for monitoring pressure inside the anchoring means.

Abstract translation: 活动固定冠状窦引导装置包括电极支撑装置，其包括电极支撑纵向轴线。 多个电极段由电极支撑装置支撑并围绕电极支撑纵向轴线排列。 多个绝缘段由电极支撑装置支撑，并且在与电极段相对的位置处围绕电极支撑件纵向轴线排列。 在这方面，绝缘段分散在电极段之间。 电极段定向装置连接到电极支撑装置，用于围绕电极支撑纵向轴线选择性地定向电极段和绝缘段。 血管锚固装置，其可以包括三个柔性锚定翼部分，连接到电极支撑装置，用于将装置锚定到血管的内壁。 压力监测系统可以连接到船舶锚固装置，用于监测锚固装置内的压力。

公开(公告)号：US10044381B2

公开(公告)日：2018-08-07

申请号：US13584273

申请日：2012-08-13

Applicant: Mark Vernon Lane ,  Chang-Ho Lee ,  Christian Holenstein ,  Mahim Ranjan ,  Praveen-Kumar Sampath ,  Frederic Bossu ,  Sumit Verma ,  Wesley Alan Sampson

Inventor： Mark Vernon Lane ,  Chang-Ho Lee ,  Christian Holenstein ,  Mahim Ranjan ,  Praveen-Kumar Sampath ,  Frederic Bossu ,  Sumit Verma ,  Wesley Alan Sampson

IPC: H04B1/04

Abstract: Techniques for using a narrow filter located before a power amplifier to reduce interference in an adjacent frequency band are disclosed. In an exemplary design, an apparatus (e.g., a wireless device) includes the narrow filter and the power amplifier. The narrow filter is for a first frequency band (e.g., Band 40) and has a first bandwidth that is more narrow than the first frequency band. The narrow filter receives and filters an input radio frequency (RF) signal and provides a filtered RF signal. The power amplifier receives and amplifies the filtered RF signal and provides an amplified RF signal. The apparatus may further include a full filter for the first frequency band and located after the power amplifier. The full filter receives and filters the amplified RF signal and provides an output RF signal when it is selected for use.

公开(公告)号：US09154179B2

公开(公告)日：2015-10-06

申请号：US13172660

申请日：2011-06-29

Applicant: Prasad Srinivasa Siva Gudem ,  Tamer Adel Kadous ,  Sumit Verma ,  Li-chung Chang

Inventor： Prasad Srinivasa Siva Gudem ,  Tamer Adel Kadous ,  Sumit Verma ,  Li-chung Chang

IPC: H04B7/00 ,  H04B1/525 ,  H04B1/707 ,  H04B1/10

CPC classification number: H04B1/525 ,  H04B1/109 ,  H04B1/70712

Abstract: A receiver with bypass mode for improved sensitivity is disclosed. An apparatus is provided that includes a non-bypass signal path coupled to a receiver, the non-bypass signal path comprising a filter, a bypass signal path coupled to the receiver, the bypass signal path configure to bypass the filter, and a switch configured to couple an antenna to the non-bypass signal path during time intervals when signals transmitted by a related local transmitter are transmitted with a signal power that exceeds a threshold, and to couple the antenna to the bypass signal path during other time intervals. In another aspect, the switch is configured to couple the antenna to the non-bypass signal path during time intervals when a jamming signal in a selected frequency range is received with a signal power that exceeds a threshold, and to couple the antenna to the bypass signal path during other time intervals.

Abstract translation: 公开了一种具有旁路模式以提高灵敏度的接收机。 提供了一种装置，其包括耦合到接收器的非旁路信号路径，非旁路信号路径包括滤波器，耦合到接收器的旁路信号路径，配置为绕过滤波器的旁路信号路径和配置的开关 以在由相关本地发射机发射的信号以超过阈值的信号功率发射的时间间隔内将天线耦合到非旁路信号路径，并且在其它时间间隔期间将天线耦合到旁路信号路径。 在另一方面，所述开关被配置为在以超过阈值的信号功率接收到所选频率范围内的干扰信号的时间间隔期间将天线耦合到非旁路信号路径，并且将天线耦合到旁路 信号路径在其他时间间隔。

公开(公告)号：US20130225107A1

公开(公告)日：2013-08-29

申请号：US13584273

申请日：2012-08-13

Applicant: Mark Vernon Lane ,  Chang-Ho Lee ,  Christian Holenstein ,  Mahim Ranjan ,  Praveen-Kumar Sampath ,  Frederic Bossu ,  Sumit Verma ,  Wesley Alan Sampson

Inventor： Mark Vernon Lane ,  Chang-Ho Lee ,  Christian Holenstein ,  Mahim Ranjan ,  Praveen-Kumar Sampath ,  Frederic Bossu ,  Sumit Verma ,  Wesley Alan Sampson

IPC: H03G3/20

CPC classification number: H04B1/0458 ,  H04B1/04 ,  H04B1/0475

Abstract: Techniques for using a narrow filter located before a power amplifier to reduce interference in an adjacent frequency band are disclosed. In an exemplary design, an apparatus (e.g., a wireless device) includes the narrow filter and the power amplifier. The narrow filter is for a first frequency band (e.g., Band 40) and has a first bandwidth that is more narrow than the first frequency band. The narrow filter receives and filters an input radio frequency (RF) signal and provides a filtered RF signal. The power amplifier receives and amplifies the filtered RF signal and provides an amplified RF signal. The apparatus may further include a full filter for the first frequency band and located after the power amplifier. The full filter receives and filters the amplified RF signal and provides an output RF signal when it is selected for use.

Abstract translation: 公开了使用位于功率放大器之前的窄滤波器来减少相邻频带中的干扰的技术。 在示例性设计中，装置（例如，无线装置）包括窄滤波器和功率放大器。 窄滤波器用于第一频带（例如，频带40），并且具有比第一频带更窄的第一带宽。 窄滤波器接收并过滤输入射频（RF）信号并提供滤波后的RF信号。 功率放大器接收并放大经滤波的RF信号并提供放大的RF信号。 该装置还可以包括用于第一频带并位于功率放大器之后的全滤波器。 全滤波器接收并过滤放大的RF信号，并在选择使用时提供输出RF信号。

公开(公告)号：US20130033314A1

公开(公告)日：2013-02-07

申请号：US13490707

申请日：2012-06-07

Applicant: Prasad Srinivasa Siva Gudem ,  Ketan Humnabadkar ,  Vijay K. Chellappa ,  Sumit Verma

Inventor： Prasad Srinivasa Siva Gudem ,  Ketan Humnabadkar ,  Vijay K. Chellappa ,  Sumit Verma

IPC: H03F1/00

CPC classification number: H03F1/0255

Abstract: A power train amplification stage is described. The power train amplification stage includes a power amplifier. The power train amplification stage also includes a switched mode power supply that provides a bias voltage to the power amplifier. The power train amplification stage further includes a pulse density modulator. The power train amplification stage also includes a feedback path from the power amplifier to the pulse density modulator.

Abstract translation: 描述了动力传动系放大级。 动力传动系放大级包括功率放大器。 动力传动系放大级还包括向功率放大器提供偏置电压的开关模式电源。 动力传动系放大级还包括脉冲密度调制器。 传动系放大级还包括从功率放大器到脉冲密度调制器的反馈路径。