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21. 发明申请

US20130183917A1 HIGH EFFICIENCY TRANSMITTER 有权
标题翻译：高效发射机
公开(公告)号：US20130183917A1
公开(公告)日：2013-07-18
申请号：US13353062
申请日：2012-01-18
申请人： Bhushan Shanti Asuri , Ibrahim Ramez Chamas , Prasad Srinivasa Siva Gudem
发明人： Bhushan Shanti Asuri , Ibrahim Ramez Chamas , Prasad Srinivasa Siva Gudem
IPC分类号： H04B1/04
CPC分类号： H04B1/0483 , H03F1/02 , H03F3/24 , H04B2001/045
摘要： A high efficiency transmitter is disclosed. In an exemplary embodiment, a transmitter is provided that includes a first transmission path configured to receive a baseband signal and generate a first RF output when output power is in a first output power range, and a second transmission path configured to receive the baseband signal and generate a second RF output when the output power is in a second output power range.
摘要翻译：公开了一种高效率的发射机。在示例性实施例中，提供了一种发射机，其包括：第一传输路径，被配置为在输出功率处于第一输出功率范围内时接收基带信号并产生第一RF输出;第二传输路径被配置为接收基带信号;以及当输出功率处于第二输出功率范围时，产生第二RF输出。

22. 发明申请

US20130003617A1 RECEIVER WITH BYPASS MODE FOR IMPROVED SENSITIVITY 有权
标题翻译：接收器采用旁路模式提高灵敏度
公开(公告)号：US20130003617A1
公开(公告)日：2013-01-03
申请号：US13172660
申请日：2011-06-29
申请人： Prasad Srinivasa Siva Gudem , Tamer Adel Kadous , Sumit Verma , Li-chung Chang
发明人： Prasad Srinivasa Siva Gudem , Tamer Adel Kadous , Sumit Verma , Li-chung Chang
IPC分类号： H04W88/02
CPC分类号： H04B1/525 , H04B1/109 , H04B1/70712
摘要： 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.
摘要翻译：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。

23. 发明授权

US09252827B2 Signal splitting carrier aggregation receiver architecture 有权
标题翻译：信号分离载波聚合接收机架构
公开(公告)号：US09252827B2
公开(公告)日：2016-02-02
申请号：US13411461
申请日：2012-03-02
申请人： Prasad Srinivasa Siva Gudem , Udara C. Fernando , Li-Chung Chang
发明人： Prasad Srinivasa Siva Gudem , Udara C. Fernando , Li-Chung Chang
IPC分类号： H04B1/3805 , H04B1/00
CPC分类号： H04B1/3805 , H04B1/005
摘要： A wireless communication device configured for receiving a multiple carrier signal is described. The wireless communication device includes a primary signal splitting carrier aggregation architecture. The primary signal splitting carrier aggregation architecture includes a primary antenna and a transceiver chip. The primary signal splitting carrier aggregation architecture reuses a first diversity/simultaneous hybrid dual receiver path. The wireless communication device also includes a secondary signal splitting carrier aggregation architecture. The secondary signal splitting carrier aggregation architecture includes a secondary antenna and a receiver chip. The secondary signal splitting carrier aggregation architecture reuses a second diversity/simultaneous hybrid dual receiver path.
摘要翻译：描述了被配置为接收多载波信号的无线通信设备。无线通信设备包括主信号分离载波聚合体系结构。主信号分离载波聚合架构包括主天线和收发芯片。主信号分离载波聚合架构重新使用第一分集/同步混合双接收机路径。无线通信设备还包括辅助信号分离载波聚合架构。次级信号分离载波聚合架构包括辅助天线和接收机芯片。次信号分离载波聚合架构重新使用第二分集/同步混合双接收机路径。

24. 发明授权

US09154179B2 Receiver with bypass mode for improved sensitivity 有权
标题翻译：接收器具有旁路模式，以提高灵敏度
公开(公告)号：US09154179B2
公开(公告)日：2015-10-06
申请号：US13172660
申请日：2011-06-29
申请人： Prasad Srinivasa Siva Gudem , Tamer Adel Kadous , Sumit Verma , Li-chung Chang
发明人： Prasad Srinivasa Siva Gudem , Tamer Adel Kadous , Sumit Verma , Li-chung Chang
IPC分类号： H04B7/00 , H04B1/525 , H04B1/707 , H04B1/10
CPC分类号： H04B1/525 , H04B1/109 , H04B1/70712
摘要： 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.
摘要翻译：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。

25. 发明授权

US08787854B2 Low power local oscillator signal generation 失效
标题翻译：低功耗本地振荡器信号产生
公开(公告)号：US08787854B2
公开(公告)日：2014-07-22
申请号：US13557382
申请日：2012-07-25
申请人： Li Liu , Prasad Srinivasa Siva Gudem , Frederic Bossu , Chiewcharn Narathong
发明人： Li Liu , Prasad Srinivasa Siva Gudem , Frederic Bossu , Chiewcharn Narathong
IPC分类号： H04B3/04
CPC分类号： H04B17/004 , H04B17/102 , H04B17/20 , H04W52/0274 , Y02D70/00
摘要： A method and apparatus for providing an oscillating signal within a transmitter/receiver circuit is described. The transmitter/receiver circuit may include an oscillator that generates an oscillating signal that may be provided to a low power, low gain mixer of the transmitter/receiver circuit along a shorter circuit path that includes low power circuitry, such as low power buffers and low power frequency dividers. The oscillating signal may also be provided to a high power, high gain mixer along a longer circuit path that includes high power circuitry, such as high power buffers and high power frequency dividers. Specifically, the low power circuitry is adapted to consume less power in an ON state than the high power circuitry in an ON state, and the shorter circuit path has a shorter electrical path length than the longer circuit path.
摘要翻译：描述了一种用于在发射机/接收机电路内提供振荡信号的方法和装置。发射机/接收机电路可以包括振荡器，其产生可以沿着包括低功率电路（例如低功率缓冲器和低功率缓冲器）的较短电路路径被提供给发射机/接收机电路的低功率低增益混频器的振荡信号功率分频器振荡信号还可以沿着包括高功率电路（例如高功率缓冲器和高功率分频器）的较长电路路径被提供给高功率高增益混频器。具体地，低功率电路适于在ON状态下消耗比处于ON状态的高功率电路的ON状态更少的功率，并且较短的电路路径具有比较长电路路径更短的电路径长度。

26. 发明申请

US20140030991A1 LOW POWER LOCAL OSCILLATOR SIGNAL GENERATION 失效
标题翻译：低功率本地振荡器信号发生器
公开(公告)号：US20140030991A1
公开(公告)日：2014-01-30
申请号：US13557382
申请日：2012-07-25
申请人： Li Liu , Prasad Srinivasa Siva Gudem , Frederic Bossu , Chiewcharn Narathong
发明人： Li Liu , Prasad Srinivasa Siva Gudem , Frederic Bossu , Chiewcharn Narathong
IPC分类号： H04B17/00
CPC分类号： H04B17/004 , H04B17/102 , H04B17/20 , H04W52/0274 , Y02D70/00
摘要： A method and apparatus for providing an oscillating signal within a transmitter/receiver circuit is described. The transmitter/receiver circuit may include an oscillator that generates an oscillating signal that may be provided to a low power, low gain mixer of the transmitter/receiver circuit along a shorter circuit path that includes low power circuitry, such as low power buffers and low power frequency dividers. The oscillating signal may also be provided to a high power, high gain mixer along a longer circuit path that includes high power circuitry, such as high power buffers and high power frequency dividers. Specifically, the low power circuitry is adapted to consume less power in an ON state than the high power circuitry in an ON state, and the shorter circuit path has a shorter electrical path length than the longer circuit path.
摘要翻译：描述了一种用于在发射机/接收机电路内提供振荡信号的方法和装置。发射机/接收机电路可以包括振荡器，其产生可以沿着包括低功率电路（例如低功率缓冲器和低功率缓冲器）的较短电路路径被提供给发射机/接收机电路的低功率低增益混频器的振荡信号功率分频器振荡信号还可以沿着包括高功率电路（例如高功率缓冲器和高功率分频器）的较长电路路径被提供给高功率高增益混频器。具体地，低功率电路适于在ON状态下消耗比处于ON状态的高功率电路的ON状态更少的功率，并且较短的电路路径具有比较长电路路径更短的电路径长度。

27. 发明申请

US20130231064A1 SINGLE-CHIP SIGNAL SPLITTING CARRIER AGGREGATION RECEIVER ARCHITECTURE 有权
标题翻译：单芯片信号分离载波聚合接收机架构
公开(公告)号：US20130231064A1
公开(公告)日：2013-09-05
申请号：US13411444
申请日：2012-03-02
申请人： Prasad Srinivasa Siva Gudem , Gurkanwal Singh Sahota , Li-Chung Chang , Christian Holenstein , Frederic Bossu
发明人： Prasad Srinivasa Siva Gudem , Gurkanwal Singh Sahota , Li-Chung Chang , Christian Holenstein , Frederic Bossu
IPC分类号： H04B1/38
CPC分类号： H04B1/0057 , H04B7/04
摘要： A wireless communication device configured for receiving a multiple carrier signal is described. The wireless communication device includes a single-chip signal splitting carrier aggregation receiver architecture. The single-chip signal splitting carrier aggregation receiver architecture includes a primary antenna, a secondary antenna and a transceiver chip. The single-chip signal splitting carrier aggregation receiver architecture reuses a simultaneous hybrid dual receiver path.
摘要翻译：描述了被配置为接收多载波信号的无线通信设备。无线通信设备包括单芯片信号分离载波聚合接收机架构。单芯片信号分离载波聚合接收机架构包括主天线，辅助天线和收发芯片。单芯片信号分离载波聚合接收机架构重用同步混合双接收机路径。

28. 发明申请

US20130033314A1 POWER BASED FEEDBACK FOR IMPROVED POWER AMPLIFIER (PA) EFFICIENCY 有权
标题翻译：基于功率的反馈功率放大器（PA）效率
公开(公告)号：US20130033314A1
公开(公告)日：2013-02-07
申请号：US13490707
申请日：2012-06-07
申请人： Prasad Srinivasa Siva Gudem , Ketan Humnabadkar , Vijay K. Chellappa , Sumit Verma
发明人： Prasad Srinivasa Siva Gudem , Ketan Humnabadkar , Vijay K. Chellappa , Sumit Verma
IPC分类号： H03F1/00
CPC分类号： H03F1/0255
摘要： 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.
摘要翻译：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。

29. 发明授权

US09882602B2 Global navigation satellite system receiver with filter bypass mode for improved sensitivity 有权
公开(公告)号：US09882602B2
公开(公告)日：2018-01-30
申请号：US13172653
申请日：2011-06-29
申请人： Prasad Srinivasa Siva Gudem , Liang Zhao , I-Hsiang Lin , Zhijie Xiong , Bhushan Shanti Asuri , Aristotele Hadjichristos
发明人： Prasad Srinivasa Siva Gudem , Liang Zhao , I-Hsiang Lin , Zhijie Xiong , Bhushan Shanti Asuri , Aristotele Hadjichristos
IPC分类号： H04B1/3805 , H04B1/525
CPC分类号： H04B1/525 , H04B1/3805
摘要： A global navigation satellite system receiver with filter bypass mode for improved sensitivity is disclosed. In an aspect, an apparatus is provided that includes a non-bypass signal path coupled to a receiver, the non-bypass signal path comprising a filter. The apparatus also includes a bypass signal path coupled to the receiver, the bypass signal path configure to bypass the filter, and a switch to couple an antenna to the non-bypass signal path during time intervals when signals transmitted by an unrelated local transmitter are transmitted with a signal power that exceeds a selected threshold, and to couple the antenna to the bypass signal path during other time intervals.

30. 发明授权

US09344100B2 Reconfigurable local oscillator for optimal noise performance in a multi-standard transceiver 有权
标题翻译：可重构本地振荡器，可在多标准收发器中实现最佳噪声性能
公开(公告)号：US09344100B2
公开(公告)日：2016-05-17
申请号：US12898104
申请日：2010-10-05
申请人： Li Liu , Chiewcharn Narathong , Prasad Srinivasa Siva Gudem
发明人： Li Liu , Chiewcharn Narathong , Prasad Srinivasa Siva Gudem
IPC分类号： H04B7/216 , H03L7/197 , H03L7/093 , H03L7/099 , H03L7/10 , H03B5/12 , H04B1/00
CPC分类号： H03L7/1976 , H03B5/1212 , H03B5/1228 , H03B5/1243 , H03L7/093 , H03L7/099 , H03L7/104 , H04B1/0057
摘要： A transceiver for multi-standard operation (usable, for example, to communicate signals both of a first wireless communication standard and of a second wireless communication standard) has a mixer that receives a local oscillator signal generated by a local oscillator. A PLL of the local oscillator involves a VCO, a digitally programmable analog loop filter, a digitally programmable VCO supply voltage circuit, and a digitally programmable VCO varactor bias control circuit. In one aspect, the bandwidth of the analog loop filter is adjusted depending on the communication standard of the signal being communicated. In other aspects, the VCO supply voltage circuit and/or the varactor bias control circuit are configured in different ways to optimize PLL performance depending on the communication standard of the signal being communicated.
摘要翻译：用于多标准操作的收发器（例如可用于传送第一无线通信标准和第二无线通信标准的信号）具有接收由本地振荡器产生的本地振荡器信号的混合器。本地振荡器的PLL包括VCO，数字可编程模拟环路滤波器，数字可编程VCO电源电压电路和数字可编程VCO变容二极管偏置控制电路。在一个方面，模拟环路滤波器的带宽根据正在传送的信号的通信标准来调节。在其他方面，VCO电源电压电路和/或变容二极管偏置控制电路以不同的方式配置，以根据正在通信的信号的通信标准优化PLL性能。

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