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11. 发明申请

US20090243727A1 Compensating for non-linear capacitance effects in a power amplifier 有权
标题翻译：补偿功率放大器中的非线性电容效应
公开(公告)号：US20090243727A1
公开(公告)日：2009-10-01
申请号：US12080066
申请日：2008-03-31
申请人： David E. Bockelman , Vishnu Srinivasan
发明人： David E. Bockelman , Vishnu Srinivasan
IPC分类号： H03G3/10
CPC分类号： H03G3/00 , H03F1/086 , H03F1/14 , H03F3/19 , H03F3/245 , H03F3/3022 , H03F2200/451 , H03F2203/30144 , H04B1/40
摘要： In one implementation, a power amplifier may include a gain device to receive an input signal and to output an amplified signal, and a compensation device coupled to the gain device to compensate for a change in a capacitance of the gain device occurring due to a change in the input signal. The power amplifier may be formed using a complementary metal oxide semiconductor (CMOS) process.
摘要翻译：在一个实现中，功率放大器可以包括用于接收输入信号并输出放大信号的增益器件，以及耦合到增益器件的补偿器件，以补偿由于变化而发生的增益器件的电容变化在输入信号中。可以使用互补金属氧化物半导体（CMOS）工艺来形成功率放大器。

12. 发明授权

US07872528B2 Providing pre-distortion to an input signal 有权
标题翻译：为输入信号提供预失真
公开(公告)号：US07872528B2
公开(公告)日：2011-01-18
申请号：US12082311
申请日：2008-04-10
申请人： David E. Bockelman , Vishnu Srinivasan
发明人： David E. Bockelman , Vishnu Srinivasan
IPC分类号： H03F1/26
CPC分类号： H03F1/3276 , H03F1/3211 , H03F3/211 , H03F3/245 , H03F3/45475 , H03F2200/451 , H03F2200/537 , H03F2203/45138
摘要： In one implementation, the present invention includes a diode device to receive an incoming radio frequency (RF) signal to be amplified in a gain device of an amplifier and to provide a pre-distorted signal. Based on this pre-distorted signal, the gain device can output an amplified RF signal having substantial linearity to the incoming RF signal.
摘要翻译：在一个实现中，本发明包括一个二极管器件，用于接收在放大器的增益器件中放大的输入射频（RF）信号，并提供预失真信号。基于该预失真信号，增益器件可以输出对输入RF信号具有大量线性的放大RF信号。

13. 发明申请

US20090273397A1 Controlling power with an output network 有权
标题翻译：用输出网络控制电源
公开(公告)号：US20090273397A1
公开(公告)日：2009-11-05
申请号：US12151199
申请日：2008-05-05
申请人： David E. Bockelman , Vishnu Srinivasan
发明人： David E. Bockelman , Vishnu Srinivasan
IPC分类号： H03F1/14 , H03F3/45
CPC分类号： H03F3/72 , H03F1/0277 , H03F3/195 , H03F3/211 , H03F3/45475 , H03F2200/451 , H03F2200/537 , H03F2200/541 , H03F2203/45614 , H03F2203/7233
摘要： In one embodiment, the present invention includes multiple gain stages and an output network coupled to the gain stages. Each of the gain stages can be independently controlled to amplify a radio frequency (RF) signal to an output power level for transmission from a mobile wireless device. When controlled to be inactive, at least one of the gain stages can be placed into a low impedance state.
摘要翻译：在一个实施例中，本发明包括耦合到增益级的多个增益级和输出网络。可以独立地控制每个增益级，以将射频（RF）信号放大到用于从移动无线设备传输的输出功率电平。当被控制为无效时，增益级中的至少一个可以被置于低阻抗状态。

14. 发明授权

US08787850B2 Compensating for non-linear capacitance effects in a power amplifier 有权
公开(公告)号：US08787850B2
公开(公告)日：2014-07-22
申请号：US12080066
申请日：2008-03-31
申请人： David E. Bockelman , Vishnu Srinivasan
发明人： David E. Bockelman , Vishnu Srinivasan
IPC分类号： H04B1/04 , H03F1/14 , H01Q11/12
CPC分类号： H03G3/00 , H03F1/086 , H03F1/14 , H03F3/19 , H03F3/245 , H03F3/3022 , H03F2200/451 , H03F2203/30144 , H04B1/40
摘要： In one implementation, a power amplifier may include a gain device to receive an input signal and to output an amplified signal, and a compensation device coupled to the gain device to compensate for a change in a capacitance of the gain device occurring due to a change in the input signal. The power amplifier may be formed using a complementary metal oxide semiconductor (CMOS) process.

15. 发明授权

US08219049B2 Generating a process and temperature tracking bias voltage 有权
标题翻译：产生过程和温度跟踪偏置电压
公开(公告)号：US08219049B2
公开(公告)日：2012-07-10
申请号：US12578838
申请日：2009-10-14
申请人： Anil Samavedam , David E. Bockelman , Vishnu Srinivasan
发明人： Anil Samavedam , David E. Bockelman , Vishnu Srinivasan
IPC分类号： H04B1/04 , H03G3/20
CPC分类号： H03F1/3205 , H03F1/301 , H03F3/19 , H03F3/245 , H03F3/3022 , H03F2200/447 , H03F2200/451 , H03F2203/30144
摘要： In one embodiment, a method includes generating a current that is proportional to a mobility and an oxide capacitance of a tracking device and independent of a threshold voltage variation of the tracking device, generating a voltage from the current, and providing the voltage as at least part of a bias voltage for another device. In one embodiment, this other device may be a compensation circuit coupled to a main device to compensate for capacitance non-linearity of the main device.
摘要翻译：在一个实施例中，一种方法包括产生与跟踪装置的迁移率和氧化物电容成比例的电流，并且不依赖于跟踪装置的阈值电压变化，从电流产生电压，并将电压提供至少另一个器件偏置电压的一部分。在一个实施例中，该另一个器件可以是耦合到主器件的补偿电路，以补偿主器件的电容非线性。

16. 发明申请

US20060178122A1 Interchangeable receive inputs for band and system swappability in communication systems and related methods 有权
标题翻译：通信系统中的频带和系统可交换的可互换接收输入及相关方法
公开(公告)号：US20060178122A1
公开(公告)日：2006-08-10
申请号：US11231182
申请日：2005-09-20
申请人： Vishnu Srinivasan , Gary Levy , Brett Mitchelson , Donald Kerth , Eric Garlepp , G. Tyson Tuttle
发明人： Vishnu Srinivasan , Gary Levy , Brett Mitchelson , Donald Kerth , Eric Garlepp , G. Tyson Tuttle
IPC分类号： H04B1/18
CPC分类号： H04B1/006
摘要： Interchangeable high band low-noise-amplifiers (LNAs) and low band low-noise-amplifiers (LNAs) and related methods are disclosed that greatly enhance the efficiency of designing handsets for different combinations of frequency bands. The input signals to particular pins on a receiver or transceiver integrated circuit (IC) are swappable such that multiple frequency bands can be input to the same input pins thereby allowing for simplified system design. Efficient programmable techniques are also disclosed for controlling a swap mode within communication ICs. These interchangeable or band swappable input paths, for example, can be utilized to allow interchangeability between high band (PCS, DCS) and low band (GSM, E-GSM) inputs for cellular communications. In this way, for example, handset manufacturers can build a single printed circuit board (PCB) that can be utilized for cellular communications in the United States of America, where 850 MHz (GSM) and 1900 MHz (PCS) bands are utilized, and in Europe, wherein 900 MHz (E-GSM) and 1800 MHz (DCS) bands are utilized.
摘要翻译：公开了可互换的高频带低噪声放大器（LNA）和低频带低噪声放大器（LNA）及相关方法，这大大提高了针对不同频带组合设计手机的效率。接收器或收发器集成电路（IC）上的特定引脚的输入信号是可交换的，使得可以将多个频带输入到相同的输入引脚，从而允许简化的系统设计。还公开了用于控制通信IC内的交换模式的高效可编程技术。例如，这些可互换或频带可交换的输入路径可用于允许用于蜂窝通信的高频带（PCS，DCS）和低频（GSM，E-GSM）输入之间的互换性。以这种方式，例如，手机制造商可以构建可用于在美国使用850MHz（GSM）和1900MHz（PCS）频带的美国的蜂窝通信的单个印刷电路板（PCB），以及在欧洲，其中使用900MHz（E-GSM）和1800MHz（DCS）频带。

17. 发明申请

US20130154744A1 Non-Linear Capacitance Compensation 有权
标题翻译：非线性电容补偿
公开(公告)号：US20130154744A1
公开(公告)日：2013-06-20
申请号：US13690138
申请日：2012-11-30
申请人： Anil Samavedam , David E. Bockelman , Vishnu Srinivasan , Eric Kimball
发明人： Anil Samavedam , David E. Bockelman , Vishnu Srinivasan , Eric Kimball
IPC分类号： H03G3/00
CPC分类号： H03G3/00 , H03F1/086 , H03F1/14 , H03F3/19 , H03F3/245 , H03F3/3022 , H03F2200/451 , H03F2203/30144
摘要： Embodiments are directed to capacitance compensation via a compensation device coupled to a gain device to compensate for a capacitance change occurring due to an input signal change, along with a controller coupled to the compensation device to receive the input signal and to control an amount of compensation based on the input signal. In some embodiments, banks may be formed of multiple compensation devices, where each of the banks has a different size and is coupled to receive a different set of bias voltages.
摘要翻译：实施例涉及通过耦合到增益器件的补偿器件的电容补偿，以补偿由于输入信号变化而发生的电容变化，连同耦合到补偿器件的控制器接收输入信号并控制补偿量基于输入信号。在一些实施例中，存储体可以由多个补偿装置形成，其中每个存储体具有不同的尺寸并被耦合以接收不同的一组偏置电压。

18. 发明授权

US08344808B2 Non-linear capacitance compensation 有权
标题翻译：非线性电容补偿
公开(公告)号：US08344808B2
公开(公告)日：2013-01-01
申请号：US12889890
申请日：2010-09-24
申请人： Anil Samavedam , David E. Bockelman , Vishnu Srinivasan , Eric Kimball
发明人： Anil Samavedam , David E. Bockelman , Vishnu Srinivasan , Eric Kimball
IPC分类号： H03F1/14
CPC分类号： H03G3/00 , H03F1/086 , H03F1/14 , H03F3/19 , H03F3/245 , H03F3/3022 , H03F2200/451 , H03F2203/30144
摘要： Embodiments are directed to capacitance compensation via a compensation device coupled to a gain device to compensate for a capacitance change occurring due to an input signal change, along with a controller coupled to the compensation device to receive the input signal and to control an amount of compensation based on the input signal. In some embodiments, banks may be formed of multiple compensation devices, where each of the banks has a different size and is coupled to receive a different set of bias voltages.
摘要翻译：实施例涉及通过耦合到增益器件的补偿器件的电容补偿，以补偿由于输入信号变化而发生的电容变化，连同耦合到补偿器件的控制器接收输入信号并控制补偿量基于输入信号。在一些实施例中，存储体可以由多个补偿装置形成，其中每个存储体具有不同的尺寸并被耦合以接收不同的一组偏置电压。

19. 发明授权

US08160520B2 Supply control for multiple power modes of a power amplifier 有权
标题翻译：功率放大器的多种功率模式的电源控制
公开(公告)号：US08160520B2
公开(公告)日：2012-04-17
申请号：US12151812
申请日：2008-05-09
申请人： Vishnu Srinivasan , David E. Bockelman
发明人： Vishnu Srinivasan , David E. Bockelman
IPC分类号： H04B1/04
CPC分类号： H03F1/0216 , H03F1/0244 , H03F3/19 , H03F3/211 , H03F3/245 , H03F3/72 , H03F2200/451 , H03F2200/507 , H03F2200/541 , H03F2203/21196 , H03F2203/7221 , H03F2203/7227 , H03F2203/7236 , H03G1/0088 , H03G3/004 , H03G3/3042
摘要： In one embodiment, the present invention includes an apparatus having at least two gain stages to receive incoming signals and to output amplified signals, along with multiple regulators. More specifically, a linear regulator can be coupled to the first gain stage to provide a first regulated voltage to the first gain stage, and a switching regulator coupled to the second gain stage to provide a second regulated voltage to the second gain stage.
摘要翻译：在一个实施例中，本发明包括具有至少两个增益级以接收输入信号并且与多个调节器一起输出放大信号的装置。更具体地，线性调节器可以耦合到第一增益级，以向第一增益级提供第一调节电压，以及耦合到第二增益级的开关稳压器，以向第二增益级提供第二调节电压。

20. 发明申请

US20100164621A1 OUTPUT GAIN STAGE FOR A POWER AMPLIFIER 有权
标题翻译：输出功率放大器的增益级别
公开(公告)号：US20100164621A1
公开(公告)日：2010-07-01
申请号：US12317819
申请日：2008-12-30
申请人： Vishnu Srinivasan , David E. Bockelman
发明人： Vishnu Srinivasan , David E. Bockelman
IPC分类号： H03F3/45
CPC分类号： H03F3/45183 , H03F3/211 , H03F2200/537
摘要： In one embodiment, the present invention includes multiple gain stages to receive and amplify a differential input signal at different common mode voltages. The stages each may include a pair of linear NMOS gain transistors coupled to a primary coil of a given output transformer. One of the stages may include commonly coupled terminals coupled to a center tap of the primary coil of an output transformer of another stage, and a supply current provided to one of the stages is re-used for the other stage(s).
摘要翻译：在一个实施例中，本发明包括多个增益级，以在不同的共模电压下接收和放大差分输入信号。这些级可以包括耦合到给定输出变压器的初级线圈的一对线性NMOS增益晶体管。一个级可以包括耦合到另一级的输出变压器的初级线圈的中心抽头的共同耦合的端子，并且提供给一个级的电源电流被重新用于其它级。

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