公开(公告)号：US08254514B1

公开(公告)日：2012-08-28

申请号：US11951725

申请日：2007-12-06

申请人： Hongyuan Zhang ,  Zhiyu Yang

发明人： Hongyuan Zhang ,  Zhiyu Yang

IPC分类号： H04L7/04

CPC分类号： H04B1/7085 ,  H03M1/0836 ,  H03M1/1245 ,  H04B1/7113 ,  H04L7/042

摘要： An early-late gate based ADC timing approach is described for performing early-late gate timing recovery despite the presence of multipath signal distortion. Multipath conditions may severely distort Barker correlator magnitudes generated for taps within two taps of a determined bit synchronization time. Exemplary embodiments of the described approach may combine Barker correlator magnitudes for several receive chains to calculate the timing error correction corresponding to a difference of early and late taps. The approach may be used to increase the size and stability of Barker correlator magnitudes generated for taps far away from a determined bit synchronization time. Such embodiments allow early-late differences to be generated using combined Barker correlator magnitudes generated at taps that are two or more chips from a determined bit synchronization time, thereby avoiding multipath distortion that may distort Barker correlator magnitudes generated within two or more chips from the determined bit synchronization time.

摘要翻译： 描述了一种基于早期门的ADC定时方法，用于执行早期门限定时恢复，尽管存在多径信号失真。 多路径条件可能严重扭曲在确定的位同步时间的两个抽头之内为抽头产生的Barker相关器幅度。 所描述的方法的示例性实施例可以组合几个接收链的巴克相关器幅度，以计算对应于早期和晚期抽头的差异的定时误差校正。 该方法可以用于增加远离确定的位同步时间的抽头产生的巴克相关器幅度的大小和稳定性。 这样的实施例允许使用在来自确定的位同步时间的两个或更多个芯片的抽头处产生的组合巴克相关器幅值来产生早期差异，从而避免可能使来自所确定的两个或更多个芯片内产生的Barker相关器幅度失真的多径失真 位同步时间。

公开(公告)号：US08224272B1

公开(公告)日：2012-07-17

申请号：US11999482

申请日：2007-12-05

申请人： Hongyuan Zhang ,  Zhiyu Yang ,  Kedar Shirali ,  Atul Salhotra

发明人： Hongyuan Zhang ,  Zhiyu Yang ,  Kedar Shirali ,  Atul Salhotra

IPC分类号： H04B17/02 ,  H04B1/16

CPC分类号： H04L27/0012 ,  H04B7/082 ,  H04L23/02 ,  H04L25/0262 ,  H04L27/2071

摘要： A wireless networking receiver with digital antenna switching selects an antenna with an 802.11b signal based on a signal metric, such as the highest signal quality or highest peak amplitude. In one embodiment, the receiver comprises a plurality of antennas that may each receive one of a plurality of RF signals conforming to the IEEE 802.11b standard. The receiver may have multiple antennas for use with the IEEE 802.11n standard, but may receive signals conforming to the 802.11b standard. The receiver also comprises a carrier sense circuit configured to calculate a signal metric for each of the signals and further configured to generate a selection signal signifying one of the signals, based on the signal metric. The receiver further comprises a multiplexer configured to output one of the signals, based on the selection signal. In another embodiment, a wireless networking receiver comprises signal receiving means, carrier sensing means for calculating and selecting a signal based on a signal metric, and multiplexer means to output the signal. A related method is also disclosed. Other embodiments are provided, and each of the embodiments described herein can be used alone or in combination with one another.

摘要翻译： 具有数字天线切换的无线网络接收机基于诸如最高信号质量或最高峰值幅度的信号度量来选择具有802.11b信号的天线。 在一个实施例中，接收机包括可以各自接收符合IEEE 802.11b标准的多个RF信号中的一个的多个天线。 接收机可以具有用于IEEE 802.11n标准的多个天线，但是可以接收符合802.11b标准的信号。 接收机还包括被配置为计算每个信号的信号度量的载波侦听电路，并进一步被配置为基于信号度量产生表示信号之一的选择信号。 接收机还包括多路复用器，配置为基于选择信号输出信号之一。 在另一个实施例中，无线联网接收机包括信号接收装置，用于基于信号度量计算和选择信号的载波检测装置，以及用于输出信号的多路复用装置。 还公开了相关方法。 提供了其它实施例，并且本文所述的每个实施例可以单独使用或彼此组合使用。

公开(公告)号：US20110204810A1

公开(公告)日：2011-08-25

申请号：US12712930

申请日：2010-02-25

申请人： Zhiyu Yang ,  Dilip S. ,  Tushar Dhayagude

发明人： Zhiyu Yang ,  Dilip S. ,  Tushar Dhayagude

IPC分类号： H05B41/16 ,  H03K3/00

CPC分类号： H05B33/0809 ,  H03K3/012 ,  H03K7/08 ,  H05B33/0842

摘要： Systems, circuits and methods for phase-shifting pulse width modulated signal generation are disclosed. In some embodiments, a phase-shifting pulse width modulation circuit is configured to output pulses based on an input pulse width modulated signal. The pulses are staggered relative to one another, and can be received by a light-emitting diode driver for driving a light-emitting diode string at one or more time periods. The phase-shifting pulse width modulation circuit can include a counter-based programmable delay subcircuit consisting of two counter-based programmable delay blocks.

摘要翻译： 公开了用于相移脉宽调制信号产生的系统，电路和方法。 在一些实施例中，移相脉宽调制电路被配置为基于输入脉宽调制信号输出脉冲。 脉冲相对于彼此交错，并且可以由用于在一个或多个时间段驱动发光二极管串的发光二极管驱动器接收。 相移脉宽调制电路可以包括由两个基于计数器的可编程延迟块组成的基于计数器的可编程延迟子电路。

公开(公告)号：US07974351B1

公开(公告)日：2011-07-05

申请号：US11775605

申请日：2007-07-10

申请人： Zhiyu Yang

发明人： Zhiyu Yang

IPC分类号： H04K1/10 ,  H04J11/00 ,  H04H20/67

CPC分类号： H04L27/2676 ,  H04H40/18 ,  H04L27/2655

摘要： In detecting a signal, angle information is generated based on a complex signal having a periodic portion. An autocorrelation signal is generated based on the angle information and not based on magnitude information associated with the complex signal. The periodic portion is detected based on the autocorrelation signal.

摘要翻译： 在检测信号时，基于具有周期性部分的复数信号产生角度信息。 基于角度信息生成自相关信号，而不是基于与复信号相关联的幅度信息。 基于自相关信号检测周期部分。

公开(公告)号：US07899110B1

公开(公告)日：2011-03-01

申请号：US11957245

申请日：2007-12-14

申请人： Hongyuan Zhang ,  Zhiyu Yang

发明人： Hongyuan Zhang ,  Zhiyu Yang

IPC分类号： H04B1/00 ,  H04L27/06

CPC分类号： H04B1/7073 ,  H04B7/0865

摘要： A receiver with multiple antennas, such as an 802.11b receiver may generate a magnitude signal for each antenna and add the results to determine a peak signal point in a received frame to provide a bit synchronization signal to a rake receiver component. The receiver may include one or more threshold switches that only pass individual or combined magnitude signals when the magnitude signals are above a certain level. The received frame may be dividing into segments using a switching circuit and registers. A comparator may then evaluate the registers to determine the segment with the highest magnitude signal. In one embodiment, values for adjacent segments may be added to a current segment when determining the segment with the highest magnitude signal.

摘要翻译： 具有多个天线的接收机（例如802.11b接收机）可以为每个天线生成幅度信号，并且添加结果以确定接收帧中的峰值信号点，以向耙式接收机组件提供比特同步信号。 接收机可以包括一个或多个阈值开关，其在幅度信号高于某一水平时仅通过单个或组合的幅度信号。 接收到的帧可以使用切换电路分成多个段并进行寄存。 然后，比较器可以评估寄存器以确定具有最高幅度信号的段。 在一个实施例中，当确定具有最高幅度信号的段时，相邻段的值可被添加到当前段。

公开(公告)号：US07540717B2

公开(公告)日：2009-06-02

申请号：US11144100

申请日：2005-06-03

申请人： Ping Sheng ,  Ning Wang ,  Jianying Miao ,  Zhiyu Yang ,  Shihe Yang ,  Xinyi Zhang

发明人： Ping Sheng ,  Ning Wang ,  Jianying Miao ,  Zhiyu Yang ,  Shihe Yang ,  Xinyi Zhang

IPC分类号： F04B37/02 ,  H01L21/20 ,  C21C1/06

CPC分类号： F04B19/006 ,  F04B17/00

摘要： A technique has been developed to fabricate micro- or nanopumps based on porous alumina thin films. The main body of the nanopump consists of a porous alumina thin film (containing nano-sized channels of about 40-300 nm in diameter) with conductive surfaces (e.g. Au coating layers) on both sides of the film. Through the fabrication of nanochannels in (the alumina films) and the subsequent annealing and surface activation processes, high-efficiency micro- or nanopumps can be made. The nanofluidic flow through the nanochannels of the alumina thin films is driven by an electric field with no moving parts. The flow rate (up to 50 millilitres/(min·cm2)) of water through the alumina thin film can be continuously tuned through the intensity of the electric field, i.e., the DC electric potential applied across the nanochannels.

摘要翻译： 已经开发了一种基于多孔氧化铝薄膜制造微米或纳米囊的技术。 纳米孔的主体由多孔氧化铝薄膜（包含直径约40-300nm的纳米尺寸的通道）和薄膜两侧的导电表面（例如Au涂层）组成。 通过（氧化铝膜）中的纳米通道的制造和随后的退火和表面活化过程，可以制成高效率的微米或者纳米粉。 通过氧化铝薄膜的纳米通道的纳米流体流动由没有移动部件的电场驱动。 可以通过电场的强度，即施加在纳米通道上的直流电势来连续地调节通过氧化铝薄膜的水的流速（高达50毫升/（分钟/厘米2））。

公开(公告)号：US08838038B1

公开(公告)日：2014-09-16

申请号：US13613996

申请日：2012-09-13

申请人： Kedar Shirali ,  Atul Salhotra ,  Zhiyu Yang

发明人： Kedar Shirali ,  Atul Salhotra ,  Zhiyu Yang

IPC分类号： H04B17/00 ,  H04W72/04

CPC分类号： H04W72/04 ,  H04B17/318 ,  H04W28/04 ,  H04W74/085

摘要： A system including a plurality of filter modules to respectively communicate with a plurality of antennas, filter signals from channels other than a communication channel of a first wireless network, where the communication channel includes a first channel and a second channel, and generate a plurality of signals. A sensing module senses, based on the plurality of signals, whether radio frequency signals from a second network are present in at least one of the first channel and the second channel, and generates a plurality of control signals indicating presence or absence of the radio frequency signals in at least one of the first channel and the second channel. A channel identification module determines, based on the plurality of control signals, availability of the first channel and the second channel in response to whether the radio frequency signals are present in the first channel and the second channel.

摘要翻译： 一种系统，包括分别与多个天线通信的多个滤波器模块，从除第一无线网络的通信信道之外的信道中滤除信号，其中所述通信信道包括第一信道和第二信道，并且生成多个 信号。 感测模块​​基于多个信号来感测来自第二网络的射频信号是否存在于第一信道和第二信道中的至少一个中，并且生成指示有无射频的多个控制信号 在第一通道和第二通道中的至少一个通道中的信号。 信道识别模块响应于射频信号是否存在于第一信道和第二信道中，基于多个控制信号确定第一信道和第二信道的可用性。

公开(公告)号：US20130164251A1

公开(公告)日：2013-06-27

申请号：US13575752

申请日：2010-06-30

申请人： Xiaofang Wen ,  Yiliang Wu ,  Yefei Wang ,  Zhiyu Yang ,  Min Fan ,  Yujiao Wang ,  Xiaochun Fang ,  You Lu

发明人： Xiaofang Wen ,  Yiliang Wu ,  Yefei Wang ,  Zhiyu Yang ,  Min Fan ,  Yujiao Wang ,  Xiaochun Fang ,  You Lu

IPC分类号： C07K14/535 ,  C07K14/765

CPC分类号： C07K14/535 ,  A61K38/00 ,  C07K2319/31

摘要： The present invention relates to a mutant G-CSF fusion protein. The mutant G-CSF fusion protein is a fusion protein having the activity of stimulating the proliferation of neutrophilic granulocytes, and having a basic structure of G-CSF/carrier protein or carrier protein/G-CSF; wherein the G-CSF moiety comprises multipoint substitutions thus resulting in changes in biological activity and binding affinity. Compared with existing products, the mutant G-CSF fusion protein in the present invention has longer half-life and higher biological activity. Administration of the pharmaceutical preparation containing this mutant G-CSF fusion protein could be used in the treating neutropenia.

摘要翻译： 本发明涉及突变型G-CSF融合蛋白。 突变型G-CSF融合蛋白是具有刺激嗜中性粒细胞增殖活性的融合蛋白，具有G-CSF /载体蛋白或载体蛋白/ G-CSF的基本结构; 其中G-CSF部分包含多点置换，从而导致生物活性和结合亲和力的变化。 与现有产品相比，本发明的突变型G-CSF融合蛋白具有较长的半衰期和较高的生物活性。 含有该突变型G-CSF融合蛋白的药物制剂的给药可用于治疗中性粒细胞减少症。

公开(公告)号：US08369469B1

公开(公告)日：2013-02-05

申请号：US13085350

申请日：2011-04-12

申请人： Atul Salhotra ,  Kedar Shirali ,  Zhiyu Yang ,  Hui-Ling Lou

发明人： Atul Salhotra ,  Kedar Shirali ,  Zhiyu Yang ,  Hui-Ling Lou

IPC分类号： H04L25/08

CPC分类号： H04B7/0857 ,  H04B7/084 ,  H04L2025/03414 ,  H04L2025/03426

摘要： A method including: receiving, through a wireless channel, a plurality of modulated signals at a plurality of antennas, wherein each antenna receives a corresponding modulated signal; generating a plurality of autocorrelated signals by autocorrelating the plurality of modulated signals; determining whether a signal strength associated with each modulated signal is (i) below a threshold or (ii) above the threshold; for each modulated signal having a signal strength below the threshold, disabling the antenna that received the modulated signal having the signal strength below the threshold; combining the modulated signals having a signal strength above the threshold; generating weighted autocorrelated signals based on (i) the plurality of autocorrelated signals and (ii) the combined modulated signals; generating a combined weighted signal by summing the weighted autocorrelation signals; demodulating the combined weighted signal; and determining a state of the wireless channel based on the demodulation of the combined weighted signal.

摘要翻译： 一种方法，包括：通过无线信道在多个天线处接收多个调制信号，其中每个天线接收对应的调制信号; 通过对所述多个调制信号进行自相关来生成多个自相关信号; 确定与每个调制信号相关联的信号强度是否是（i）低于阈值或（ii）高于阈值; 对于具有低于阈值的信号强度的每个调制信号，禁用接收到信号强度低于阈值的调制信号的天线; 组合具有高于阈值的信号强度的调制信号; 基于（i）所述多个自相关信号和（ii）所述组合调制信号产生加权自相关信号; 通过对加权的自相关信号求和来产生组合的加权信号; 解调组合加权信号; 以及基于所述组合加权信号的解调来确定所述无线信道的状态。

公开(公告)号：US08339174B2

公开(公告)日：2012-12-25

申请号：US12712930

申请日：2010-02-25

申请人： Zhiyu Yang ,  Dilip S ,  Tushar Dhayagude

发明人： Zhiyu Yang ,  Dilip S ,  Tushar Dhayagude

IPC分类号： H03K3/00

CPC分类号： H05B33/0809 ,  H03K3/012 ,  H03K7/08 ,  H05B33/0842

摘要： Systems, circuits and methods for phase-shifting pulse width modulated signal generation are disclosed. In some embodiments, a phase-shifting pulse width modulation circuit is configured to output pulses based on an input pulse width modulated signal. The pulses are staggered relative to one another, and can be received by a light-emitting diode driver for driving a light-emitting diode string at one or more time periods. The phase-shifting pulse width modulation circuit can include a counter-based programmable delay subcircuit consisting of two counter-based programmable delay blocks.

摘要翻译： 公开了用于相移脉宽调制信号产生的系统，电路和方法。 在一些实施例中，移相脉宽调制电路被配置为基于输入脉宽调制信号输出脉冲。 脉冲相对于彼此交错，并且可以由用于在一个或多个时间段驱动发光二极管串的发光二极管驱动器接收。 相移脉宽调制电路可以包括由两个基于计数器的可编程延迟块组成的基于计数器的可编程延迟子电路。