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1. 发明申请

US20140071955A1 Dynamic Sounding Control In Wifi 审中-公开
标题翻译：动态探测控制在Wifi
公开(公告)号：US20140071955A1
公开(公告)日：2014-03-13
申请号：US13615446
申请日：2012-09-13
申请人： Shu Du , Zhanfeng Jia , Ning Zhang , Guido Robert Frederiks , Vincent Knowles Jones, IV , Sameer Vermani , Chin-Hung Chen , Rahul Tandra , Qinghai Gao , Balaji Srinivasan Babu
发明人： Shu Du , Zhanfeng Jia , Ning Zhang , Guido Robert Frederiks , Vincent Knowles Jones, IV , Sameer Vermani , Chin-Hung Chen , Rahul Tandra , Qinghai Gao , Balaji Srinivasan Babu
IPC分类号： H04B7/04
CPC分类号： H04B7/0452 , H04B7/0617 , H04B7/0626 , H04B7/0647 , H04L1/0027 , H04L5/00 , H04L25/0204 , H04L25/0224
摘要： A method of performing dynamic sounding in a wireless communication device includes determining whether to perform sounding based on an age of current channel state information (CSI). An achievable throughput can be recorded as a reference throughput after performing the sounding. A current achievable throughput can be compared with the reference throughput. A CSI timestamp can be reset when the current throughput is above the reference throughput by a first predetermined amount, thereby prolonging a lifespan of the current CSI. The CSI timestamp can be reduced when the current throughput is below the reference throughput by a second predetermined amount, thereby reducing the lifespan of the current CSI.
摘要翻译：在无线通信装置中执行动态声音的方法包括基于当前信道状态信息（CSI）的年龄确定是否执行发声。执行声音后可以将可实现的吞吐量记录为参考吞吐量。可以将当前可实现的吞吐量与参考吞吐量进行比较。当当前吞吐量高于参考吞吐量第一预定量时，可以重置CSI时间戳，从而延长当前CSI的寿命。当当前吞吐量低于参考吞吐量第二预定量时，可以减少CSI时间戳，从而减少当前CSI的寿命。

2. 发明授权

US09306640B2 Selecting a modulation and coding scheme for beamformed communication 有权
标题翻译：选择波束形成通信的调制和编码方案
公开(公告)号：US09306640B2
公开(公告)日：2016-04-05
申请号：US13607222
申请日：2012-09-07
申请人： Zhanfeng Jia , Shu Du
发明人： Zhanfeng Jia , Shu Du
IPC分类号： H04W4/00 , H04B7/04 , H04L1/00 , H04B7/06
CPC分类号： H04B7/04 , H04B7/0617 , H04L1/0016 , H04L1/0021 , H04L1/0026 , H04L1/0033
摘要： In adaptive modulation and coding scheme (MCS) selection for directional antenna systems, at least one table is defined that maps different ranges of signal quality values to different sets of MCS parameters. In some implementations, each range corresponds to a separate table (e.g., a given table will include the MCS and other information for that range of signal quality values). In the event an abrupt change in signal quality is detected (e.g., a change in received signal strength greater than or equal to a defined threshold), instead of using a conventional rate selection algorithm, a new MCS is selected through the use of the ranges from the table(s). In this way, a relatively large change in MCS may be accommodated, if warranted by the change in signal quality.
摘要翻译：在定向天线系统的自适应调制和编码方案（MCS）选择中，定义了将不同范围的信号质量值映射到不同组的MCS参数的至少一个表。在一些实现中，每个范围对应于单独的表（例如，给定的表将包括用于该范围的信号质量值的MCS和其他信息）。在检测到信号质量的突然变化的情况下（例如，接收信号强度的变化大于或等于定义的阈值），而不是使用传统的速率选择算法，通过使用范围来选择新的MCS 从表中。以这种方式，如果信号质量的改变得到保证，则可以适应MCS的相当大的变化。

3. 发明申请

US20140071838A1 SELECTING A MODULATION AND CODING SCHEME FOR BEAMFORMED COMMUNICATION 有权
标题翻译：选择一种用于波束通信的调制和编码方案
公开(公告)号：US20140071838A1
公开(公告)日：2014-03-13
申请号：US13607222
申请日：2012-09-07
申请人： Zhanfeng Jia , Shu Du
发明人： Zhanfeng Jia , Shu Du
IPC分类号： H04B7/04
CPC分类号： H04B7/04 , H04B7/0617 , H04L1/0016 , H04L1/0021 , H04L1/0026 , H04L1/0033
摘要： In adaptive modulation and coding scheme (MCS) selection for directional antenna systems, at least one table is defined that maps different ranges of signal quality values to different sets of MCS parameters. In some implementations, each range corresponds to a separate table (e.g., a given table will include the MCS and other information for that range of signal quality values). In the event an abrupt change in signal quality is detected (e.g., a change in received signal strength greater than or equal to a defined threshold), instead of using a conventional rate selection algorithm, a new MCS is selected through the use of the ranges from the table(s). In this way, a relatively large change in MCS may be accommodated, if warranted by the change in signal quality.
摘要翻译：在定向天线系统的自适应调制和编码方案（MCS）选择中，定义了将不同范围的信号质量值映射到不同组的MCS参数的至少一个表。在一些实现中，每个范围对应于单独的表（例如，给定的表将包括用于该范围的信号质量值的MCS和其他信息）。在检测到信号质量的突然变化的情况下（例如，接收信号强度的变化大于或等于定义的阈值），而不是使用传统的速率选择算法，通过使用范围来选择新的MCS 从表中。以这种方式，如果信号质量的改变得到保证，则可以适应MCS的相当大的变化。

4. 发明申请

US20160051269A1 Single Probe With Disturber 有权
标题翻译：带探测器的单探头
公开(公告)号：US20160051269A1
公开(公告)日：2016-02-25
申请号：US14933234
申请日：2015-11-05
申请人： Tao Song , Shu Du , Yuan Song
发明人： Tao Song , Shu Du , Yuan Song
IPC分类号： A61B17/22 , A61B17/3207
CPC分类号： A61B17/22012 , A61B17/3207
摘要： A single probe percutaneous surgical instrument for de-bulking/removing thrombus/clog/calculi has an actuator assembly (4), a probe set (13), an operating switch (10), and a generator (12). The actuator assembly (4) has a proximal end (4a) and a distal end (4b), a cable connector (1), a suction connector (2), and actuator switch (3) mounted with the proximal end (4a) and a horn (5) mounted at the distal end (4b). The probe set (13) is mounted to the horn (5) and includes at least one disturber (6), a spring (7), a 10 spring adjusting nut (8) and a fixed probe (9), the cable connector (1) connecting to the generator (12) through a cable, and the suction connector (2) connecting to a suction system. The actuator switch (3) controls a probe vibration mode through the generator (12), the actuator assembly (4) comprising at least two piezoelectric ceramic rings (18) assembled with a bolt (15), the horn (5) and a back plated (16). The horn (5) is mounted on the distal end (4b) of the actuator assembly (4), the horn (5) being coupled with the bolt (15) and the piezoelectric rings (18), the at least one disturber (6) and the spring (7) being mounted on the fixed probe (9) using the spring adjusting nut (8). The generator (12) includes a microprocessor and the microprocessor is programmed to control the actuator vibration mode, the fixed probe optimal vibration frequency and the disturbing strength of the disturbers.
摘要翻译：用于去膨胀/去除血栓/堵塞/结石的单个探针经皮手术器具具有致动器组件（4），探针组（13），操作开关（10）和发电机（12）。致动器组件（4）具有近端（4a）和远端（4b），电缆连接器（1），吸入连接器（2）和安装有近端（4a）的致动器开关（3）和安装在远端（4b）处的喇叭（5）。探针组（13）安装在喇叭（5）上，包括至少一个干燥器（6），弹簧（7），10弹簧调节螺母（8）和固定探针（9），电缆连接器 1）通过电缆连接到发电机（12），以及连接到抽吸系统的吸入连接器（2）。致动器开关（3）通过发电机（12）控制探头振动模式，致动器组件（4）包括组装有螺栓（15）的至少两个压电陶瓷环（18），喇叭（5）和背部镀（16）。喇叭（5）安装在致动器组件（4）的远端（4b）上，喇叭（5）与螺栓（15）和压电环（18），至少一个干燥器（6）），弹簧（7）使用弹簧调节螺母（8）安装在固定探头（9）上。发电机（12）包括微处理器，并且微处理器被编程以控制致动器振动模式，固定探头最佳振动频率和干扰器的干扰强度。

5. 发明授权

US08711873B2 Carrier sense multiple access (CSMA) protocols for power line communications (PLC) 有权
标题翻译：电力线通信（PLC）的载波侦听多路访问（CSMA）协议
公开(公告)号：US08711873B2
公开(公告)日：2014-04-29
申请号：US13300812
申请日：2011-11-21
申请人： Shu Du , Robert Liang , Xiaolin Lu
发明人： Shu Du , Robert Liang , Xiaolin Lu
IPC分类号： H04L12/413
CPC分类号： H04L12/413 , H04B3/544 , H04L5/0096
摘要： Systems and methods for carrier sense multiple access (CSMA) protocols for power line communications (PLC) are described. In some embodiments, a method may include performing a virtual carrier sensing operation and, in response to the virtual carrier sensing operation indicating that a communication channel is idle, calculating a contention window. The method may also include performing a physical carrier sensing operation subsequent to the virtual carrier sensing operation, the physical carrier sensing operation based, at least in part, upon the contention window. In response to the physical carrier sensing operation indicating that the communication channel is idle, the method may then include transmitting data over the channel. In other embodiments, another method may include determining that a data transmission is a unicast transmission and that an acknowledgement message has not been received. The method may further include incrementing a backoff parameter and repeating one or more carrier sense operations.
摘要翻译：描述了用于电力线通信（PLC）的载波侦听多路访问（CSMA）协议的系统和方法。在一些实施例中，方法可以包括执行虚拟载波侦听操作，并且响应于指示通信信道空闲的虚拟载波侦听操作，计算竞争窗口。该方法还可以包括在虚拟载波感测操作之后执行物理载波感测操作，至少部分地基于竞争窗口进行物理载波感测操作。响应于指示通信信道空闲的物理载波感测操作，该方法然后可以包括通过信道发送数据。在其他实施例中，另一种方法可以包括确定数据传输是单播传输，还没有接收到确认消息。该方法还可以包括增加退避参数并重复一个或多个载波检测操作。

6. 发明授权

US08670458B2 Slotted channel access techniques in network communications 有权
标题翻译：网络通信中的时隙信道接入技术
公开(公告)号：US08670458B2
公开(公告)日：2014-03-11
申请号：US13421593
申请日：2012-03-15
申请人： Kumaran Vijayasankar , Shu Du , Anand G. Dabak , Badri N. Varadarajan
发明人： Kumaran Vijayasankar , Shu Du , Anand G. Dabak , Badri N. Varadarajan
IPC分类号： H04L12/43 , H04B7/212
CPC分类号： H04L12/2838 , H04B3/54 , H04B3/56 , H04B2203/5416 , H04B2203/5466 , H04L12/413 , H04L2012/2843
摘要： Systems and methods for designing, using, and/or implementing slotted channel access techniques in network communications are described. In some embodiments, a method may include selecting one of a plurality of time slots within a contention access period (CAP), each of the plurality of time slots having a predetermined duration, and transmitting a packet during the selected time slot. For example, the time slot may be selected randomly or based on a round-robin algorithm. In some implementations, the duration of each of the plurality of time slots may correspond and/or be equal to: (a) a duration of a data packet of maximum size, (b) a sum of durations of a request-to-send packet, an interframe space, and a clear-to-send packet, and/or (c) a duration of a guaranteed time slot (GTS) or contention free period (CFP) request packet, as prescribed by a given communication protocol or standard.
摘要翻译：描述了在网络通信中设计，使用和/或实现时隙信道接入技术的系统和方法。在一些实施例中，一种方法可以包括选择争用访问周期（CAP）中的多个时隙中的一个，多个时隙中的每个时隙具有预定的持续时间，并且在所选择的时隙期间发送分组。例如，可以随机地或基于循环算法选择时隙。在一些实现中，多个时隙中的每一个的持续时间可以对应于和/或等于：（a）最大大小的数据分组的持续时间，（b）请求发送的持续时间之和分组，帧间间隔和清除发送分组，和/或（c）由给定通信协议或标准规定的保证时隙（GTS）或无争用周期（CFP）请求分组的持续时间。

7. 发明授权

US08649443B2 OFDM-lite architecture for HomePlug 有权
标题翻译： HomePlug的OFDM-lite架构
公开(公告)号：US08649443B2
公开(公告)日：2014-02-11
申请号：US12768676
申请日：2010-04-27
申请人： Badri Varadarajan , Anand Dabak , Shu Du , Il Han Kim
发明人： Badri Varadarajan , Anand Dabak , Shu Du , Il Han Kim
IPC分类号： H04L25/00
CPC分类号： H04L27/2613
摘要： A device for communicating digital data over power lines includes a power line interface for transmitting data over at least one band of frequencies. An orthogonal frequency division multiplexing (OFDM) modulation unit generates OFDM symbols using a set of tones for the frequency band. A preamble generation unit generates preamble sequences for the frequency band by using the set of tones used by the OFDM modulation unit. The tones used by the preamble generation unit have a constant magnitude, and a set of phases obtained by quantizing to a small alphabet the phase of a set of tones obtained by taking an IFFT of a portion of a preamble used by a non-interoperable powerline access device. The device may transmit on two or more bands using a sampling frequency clock, wherein a lower band clock frequency is equal to or an integer divisor of a higher band clock frequency.
摘要翻译：用于通过电力线传送数字数据的装置包括用于通过至少一个频带传送数据的电力线接口。正交频分复用（OFDM）调制单元使用用于频带的一组音调来生成OFDM符号。前导码生成单元通过使用由OFDM调制单元使用的音调集合来生成用于频带的前同步码序列。由前置码生成单元使用的音调具有恒定的幅度，以及通过将非可互操作的电力线使用的前置部分的一部分的IFFT获得的一组音调的相位来量化到小的字母而获得的一组相位访问设备该装置可以使用采样频率时钟在两个或更多个频带上进行传输，其中较低频带时钟频率等于较高频带时钟频率的整数除数。

8. 发明申请

US20120257639A1 Communications in Beacon-Enabled Networks 有权
标题翻译：信标网络中的通信
公开(公告)号：US20120257639A1
公开(公告)日：2012-10-11
申请号：US13435862
申请日：2012-03-30
申请人： Kumaran Vijayasankar , Shu Du , Anand Dabak , Badri Varadarajan , Il Han Kim , Xiaolin Lu
发明人： Kumaran Vijayasankar , Shu Du , Anand Dabak , Badri Varadarajan , Il Han Kim , Xiaolin Lu
IPC分类号： H04J4/00 , H04J3/00 , H04B3/54
CPC分类号： H04B3/542 , H04L5/0007 , H04L5/0048 , H04L5/0053 , H04L5/0073
摘要： Systems and methods for designing, using, and/or implementing communications in beacon-enabled networks are described. In various implementations, these systems and methods may be applicable to power line communications (PLC). For example, a method may include identifying one of a plurality of orthogonal superframes. The identified superframe may include beacon slots and contention access period (CAP) slots. The beacon slots may follow a sequence of two or more frequency subbands, and the CAP slots may follow the same sequence of two or more frequency subbands. Also, the sequence of two or more frequency subbands may be distinct from other sequences of two or more frequency subbands followed by other beacon slots and CAP slots within others of the plurality of available superframes. The method may then include communicating with another device using the identified superframe.
摘要翻译：描述了在启用信标的网络中设计，使用和/或实现通信的系统和方法。在各种实现中，这些系统和方法可以应用于电力线通信（PLC）。例如，方法可以包括识别多个正交超帧中的一个。所识别的超帧可以包括信标时隙和竞争接入时隙（CAP）时隙。信标时隙可以遵循两个或更多个频率子带的序列，并且CAP时隙可以遵循两个或更多个频率子带的相同序列。而且，两个或多个频率子带的序列可以与两个或多个频率子带的其他序列不同，后面是多个可用超帧中的其他信标时隙和CAP时隙。该方法然后可以包括使用所识别的超帧与另一设备进行通信。

9. 发明授权

US06875220B2 Dual probe 有权
标题翻译：双探针
公开(公告)号：US06875220B2
公开(公告)日：2005-04-05
申请号：US10334486
申请日：2002-12-30
申请人： Shu Du , Thomas M. Peterson , Tao Song
发明人： Shu Du , Thomas M. Peterson , Tao Song
IPC分类号： A61B17/22 , A61B17/32 , A61M1/00
CPC分类号： A61B17/32053 , A61B17/22012 , A61B17/320068 , A61B17/3207 , A61B2217/005
摘要： A percutaneous surgical instrument for de-bulking calculi or drilling bone includes an actuator for generating vibrations at ultrasonic frequencies and a horn coupled to said actuator for amplifying the actuator vibration. A fixed probe is attached to said horn for engaging the calculi and introducing the ultrasonic frequencies thereto. A floating probe is disposed concentric to and over said fixed probe and slidable thereover. A free mass is disposed between the horn and the floating probe for oscillating therebetween, in response to actuator vibration, for causing low frequency impact with the calculi.
摘要翻译：用于去膨胀结石或钻骨的经皮外科器械包括用于产生超声波频率的振动的致动器和与所述致动器耦合的用于放大致动器振动的喇叭。将固定的探头连接到所述喇叭上用于接合结石并将超声频率引入其中。浮动探针与所述固定探头同心并且可以在其上方滑动。响应于致动器振动，在喇叭和浮动探针之间设置自由质量块，用于在它们之间摆动，用于引起与结石的低频冲击。

10. 发明授权

US09958518B2 Shoulder coil and transmitting coil for magnetic resonance system 有权
公开(公告)号：US09958518B2
公开(公告)日：2018-05-01
申请号：US13974534
申请日：2013-08-23
申请人： Shu Du , Zeng He He , Wen Ming Li , Tong Tong , Jian Min Wang
发明人： Shu Du , Zeng He He , Wen Ming Li , Tong Tong , Jian Min Wang
IPC分类号： G01R33/34 , G01R33/3415 , G01R33/36
CPC分类号： G01R33/34084 , G01R33/34 , G01R33/3415 , G01R33/3642
摘要： A shoulder coil for a magnetic resonance system includes a receiving part. The shoulder coil also includes a transmitting part used for coupling a radio-frequency magnetic field of a body coil of the magnetic resonance system.

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