公开(公告)号：US06385297B2

公开(公告)日：2002-05-07

申请号：US09285954

申请日：1999-04-02

申请人： Roger Faulkner ,  Kurt E. Schmidt ,  Yun Zhang

发明人： Roger Faulkner ,  Kurt E. Schmidt ,  Yun Zhang

IPC分类号： H04M124

CPC分类号： H04M3/306 ,  H04B3/46

摘要： A method and automatic test system for determining qualification of a twisted pair transmission line to propagate data signals. The method includes measuring phase imbalance in the twisted pair transmission line. The phase imbalance is determined by resistance imbalance in the twisted pair transmission line. The resistance imbalance is determined by applying a common mode voltage to the twisted pair transmission line; and, determining phase imbalance in the twisted pair in response to the applied common mode voltage. The method includes applying a common mode voltage to the twisted pair transmission line; determining phase imbalance if the twisted pair in response to the applied common mode voltage; detecting a peak in the determined phase imbalance; determining a frequency of the detected peak; determining line qualification in accordance with the determined frequency. Methods are provided using series resistive imbalance and phase measurements to discover the type of imbalance existing on a twisted pair transmission line which is unable to support data transmissions. Methods are provided using series resistive imbalance and phase measurements to determine where an imbalance occurs as well as the magnitude of the imbalance.

摘要翻译： 一种用于确定双绞线传输线的资格以传播数据信号的方法和自动测试系统。 该方法包括测量双绞线传输线中的相位不平衡。 相位不平衡由双绞线传输线中的电阻不平衡决定。 电阻不平衡通过对双绞线传输线施加共模电压来确定; 以及响应于所施加的共模电压确定所述双绞线中的相位不平衡。 该方法包括对双绞线传输线施加共模电压; 如果双绞线响应于所施加的共模电压，则确定相位不平衡; 检测确定的相位不平衡中的峰值; 确定检测到的峰值的频率; 根据确定的频率确定线路资格。 提供使用串联电阻不平衡和相位测量的方法来发现不能支持数据传输的双绞线传输线上存在的不平衡类型。 使用串联电阻不平衡和相位测量来提供方法来确定不平衡发生的位置以及不平衡的大小。

公开(公告)号：US06342148B1

公开(公告)日：2002-01-29

申请号：US09296574

申请日：1999-04-22

申请人： See Hong Chiu ,  Yun Zhang

发明人： See Hong Chiu ,  Yun Zhang

IPC分类号： C25D332

CPC分类号： C25D3/60 ,  C25D3/32

摘要： An electrolyte bath for plating tin or tin alloy onto metal substrates using a high speed plating process is described. The electrolyte bath contains a stannous alkyl sulfonate and an alkyl sulfonic acid. The bath also contains an organic compound that is the reaction product of polyalkylene glycol and phenolphthalein or derivatives of phenolphthalein.

摘要翻译： 描述了使用高速电镀工艺将锡或锡合金镀到金属基底上的电解液。 电解质浴含有磺酸亚烷基酯和烷基磺酸。 该浴还含有作为聚亚烷基二醇和酚酞或酚酞衍生物的反应产物的有机化合物。

公开(公告)号：USD956829S1

公开(公告)日：2022-07-05

申请号：US29732949

申请日：2020-04-29

申请人： Qi Li ,  Feng Zhou ,  Yun Zhang

设计人： Qi Li ,  Feng Zhou ,  Yun Zhang

公开(公告)号：US09307252B2

公开(公告)日：2016-04-05

申请号：US13488127

申请日：2012-06-04

申请人： Yun Zhang ,  Sam Tak Wu Kwong

发明人： Yun Zhang ,  Sam Tak Wu Kwong

IPC分类号： H04N19/154 ,  H04N19/597 ,  H04N19/172 ,  H04N19/115 ,  H04N13/00 ,  H04N19/147 ,  H04N19/124

CPC分类号： H04N19/154 ,  H04N13/161 ,  H04N19/115 ,  H04N19/124 ,  H04N19/147 ,  H04N19/172 ,  H04N19/597 ,  H04N2213/003

摘要： The disclosed subject matter relates to providing a view synthesis distortion model (VSDM) for multiview video coding (MVC). The disclosed VSDM can facilitate determining quantization values and rate values based on model parameters for encoding depth information. Further, the VSDM can facilitate compression of depth information based on the determined quantization values and rate values. Compression of depth information can provide for reduces bandwidth consumption for dissemination of encoded multiview content for applications such as 3D video, freepoint TV, etc. Further, a feedback element can be employed to update the VSDM based on a comparison of a reconstituted version of the content, from coded depth information, against reference version of the content, from reference depth information.

摘要翻译： 所公开的主题涉及提供用于多视点视频编码（MVC）的视图合成失真模型（VSDM）。 所公开的VSDM可以有助于基于用于编码深度信息的模型参数确定量化值和速率值。 此外，VSDM可以基于所确定的量化值和速率值来促进深度信息的压缩。 深度信息的压缩可以减少用于传播诸如3D视频，自由点电视等的应用的编码的多视图内容的带宽消耗。此外，可以采用反馈元件来基于对重建的版本的比较来更新VSDM 内容，从编码深度信息，参考内容的参考版本，从参考深度信息。

公开(公告)号：US09270734B2

公开(公告)日：2016-02-23

申请号：US13696323

申请日：2010-12-10

申请人： Yun Zhang ,  Yu Fang

发明人： Yun Zhang ,  Yu Fang

IPC分类号： H04L12/28 ,  H04L29/08 ,  H04L29/06

CPC分类号： H04L67/06 ,  H04L69/22

摘要： The disclosure provides a download method and system based on a Management Data Input/Output (MDIO) interface, wherein the download method based on the MDIO interface comprises: a master device informing a slave device of using the MDIO interface to start downloading data packets in batches; the master device transmitting data packets in batches to the slave device by using an MDIO frame, wherein the MDIO frame comprises: a data packet address field and/or a data packet serial number field, wherein the data packet address field is used to indicate a relative address of one data packet in the slave device, and the data packet serial number field is used to indicate a location of said one data packet in multiple data packets; the slave device judging that a received data packet is a last data packet of a current batch transmission from the master device, and finishing a current batch download. The invention enables the master device and the slave device to perform the batch data download effectively, and solves the problem in the related art that large batch data transmission cannot be performed for download based on the MDIO interface.

摘要翻译： 本公开提供了一种基于管理数据输入/输出（MDIO）接口的下载方法和系统，其中基于MDIO接口的下载方法包括：主设备通知从设备使用MDIO接口开始下载数据包 批次 所述主设备通过使用MDIO帧将数据分组批量发送到所述从设备，其中所述MDIO帧包括：数据分组地址字段和/或数据分组序列号字段，其中所述数据分组地址字段用于指示 从设备中的一个数据分组的相对地址和数据分组序列号字段用于指示所述一个数据分组在多个数据分组中的位置; 从设备判断接收到的数据分组是来自主设备的当前批传输的最后数据分组，并且完成当前的批量下载。 本发明使得主设备和从设备能够有效地执行批量数据下载，并解决了相关技术中基于MDIO接口不能执行大批量数据传输以进行下载的问题。

公开(公告)号：US09036303B2

公开(公告)日：2015-05-19

申请号：US13548586

申请日：2012-07-13

申请人： Zhao yu Teng ,  Chong xi Song ,  Yun Zhang ,  Yan Liu ,  Xing hong Li ,  Ming bing Huang

发明人： Zhao yu Teng ,  Chong xi Song ,  Yun Zhang ,  Yan Liu ,  Xing hong Li ,  Ming bing Huang

IPC分类号： G11B5/48 ,  H05K1/02

CPC分类号： H05K1/0248 ,  G11B5/484 ,  G11B5/4853 ,  G11B5/486 ,  H05K1/0245 ,  H05K2201/09245 ,  H05K2201/097

摘要： A suspension includes a positive write trace and a negative write trace. The positive write trace is separated into at least two positive write trace sections located at two different layers respectively, and the negative write trace is separated into at least two negative write trace sections located at two different layers respectively. Each positive write trace section and each negative write trace section are alternately arranged along a longitudinal direction on two different layers, and the positive write trace sections at different layers are connected together via conductive crossovers, and the negative write trace sections are connected together via conductive crossovers. The present invention can obtain balanced propagation time in the stacked trace structure to reduce signal distortion, and obtain widened frequency bandwidth.

摘要翻译： 暂停包括正写入跟踪和负写入跟踪。 正写入迹线分成至少两个位于两个不同层的正写入跟踪部分，负写入跟踪分别分成位于两个不同层的至少两个负写入跟踪部分。 每个正写入跟踪部分和每个负写入跟踪部分沿着两个不同层的纵向方向交替布置，并且不同层的正写入跟踪部分经由导电交叉连接在一起，并且负写入跟踪部分通过导电连接在一起 交叉 本发明可以在堆叠的轨迹结构中获得平衡的传播时间，以减少信号失真，并获得加宽的频率带宽。

公开(公告)号：US09013973B2

公开(公告)日：2015-04-21

申请号：US13595744

申请日：2012-08-27

申请人： Yun Zhang

发明人： Yun Zhang

IPC分类号： H04J11/00 ,  H04L27/26 ,  H04L27/00

CPC分类号： H04L27/2659 ,  H04L2027/0026

摘要： The present invention discloses a carrier frequency acquisition method and apparatus in which the structure of a transmission frame includes a short training sequence, the method including: delaying a received short training sequence by L sampling points and multiplying the delayed short training sequence with the original short training sequence to obtain a new sequence; delaying the new sequence by D sampling points and conjugate multiplying the delayed new sequence with the original new sequence; accumulating the results of the conjugate multiplication; and evaluating a phase from the result of the accumulation to estimate carrier frequency offset. With the above method, the present invention is capable of greatly improving the acquisition range of carrier frequency offset while requiring a simple set of hardware.

摘要翻译： 本发明公开了一种载波频率采集方法和装置，其中传输帧的结构包括短训练序列，该方法包括：通过L个采样点延迟所接收的短训练序列，并将延迟的短训练序列与原始短训练 训练序列获得新序列; 通过D采样点延迟新序列，并将延迟新序列与原始新序列相乘; 累加共轭乘法的结果; 并从累积结果中估计相位以估计载波频率偏移。 利用上述方法，本发明能够极大地改善载波频率偏移的采集范围，同时需要一套简单的硬件。

公开(公告)号：US08565295B1

公开(公告)日：2013-10-22

申请号：US13597207

申请日：2012-08-28

申请人： Yun Zhang

发明人： Yun Zhang

IPC分类号： H03K5/159 ,  H03H7/30 ,  H03H7/40

CPC分类号： H04L25/022 ,  H04L25/0232 ,  H04L25/03159

摘要： Low-complexity channel noise reduction method and apparatus for multi-carrier mode in wireless LANs are disclosed. The method selects an optimal frequency domain channel impulse response by using a known long training sequence and a highly protected signaling sequence of the multi-carrier mode frame structure to ensure the receiver to have a good operation threshold in different time-delay spread environments at the cost of a low complexity. Instead of detecting time domain channel responses, the method directly performs noise reduction to a noise-containing frequency domain channel by using preset Wiener filtering coefficients to obtain multiple frequency domain channel responses, among which there must be a relatively optimal frequency domain channel response. The relatively optimal frequency domain channel response can be selected by using the highly protected signaling sequence to calculate the signaling frequency domain channel.

摘要翻译： 公开了一种用于无线LAN中的多载波模式的低复杂度信道降噪方法和装置。 该方法通过使用多载波模式帧结构的已知长训练序列和高度受保护的信令序列来选择最佳频域信道脉冲响应，以确保接收机在不同的时延传播环境中具有良好的操作阈值 成本低廉的复杂性。 该方法不是检测时域信道响应，而是通过使用预设的维纳滤波系数直接对包含噪声的频域信道进行降噪，以获得多个频域信道响应，其中必须存在相对最佳的频域信道响应。 可以通过使用高度保护的信令序列来选择相对最佳的频域信道响应来计算信令频域信道。

公开(公告)号：US20130272452A1

公开(公告)日：2013-10-17

申请号：US13597204

申请日：2012-08-28

申请人： Yun Zhang

发明人： Yun Zhang

IPC分类号： H04L27/00

CPC分类号： H04L27/2657 ,  H04L27/2613 ,  H04L27/2671 ,  H04L27/2675

摘要： Methods, system and apparatuses for carrier frequency offset estimation are disclosed. The method includes: receiving a preamble sequence rn with a correlator and correlating the preamble sequence with a locally stored Barker code bn to obtain a correlation result cn; extracting peak values from every L points in cn to form a peak value sequence xn, L being a length of a Barker code that corresponds to the sampling rate; performing frequency offset estimation to xn by using at least two frequency offset estimation apparatuses, the at least two frequency offset estimation apparatuses adopting different delay parameters D; and inputting the results output from the at least two frequency offset estimation apparatuses into a frequency offset combination module to calculate a final carrier frequency offset estimate, whereby accurate frequency estimation can be achieved and an appropriate acquisition range of frequency offset can be ensured.

摘要翻译： 公开了用于载波频率偏移估计的方法，系统和装置。 该方法包括：用相关器接收前同步码序列rn，并将前同步码序列与本地存储的巴克码bn进行相关，以获得相关结果cn; 从cn中的每个L点提取峰值以形成峰值序列xn，L是对应于采样率的Barker码的长度; 通过使用至少两个频率偏移估计装置对xn进行频率偏移估计，所述至少两个频率偏移估计装置采用不同的延迟参数D; 以及将从所述至少两个频率偏移估计装置输出的结果输入到频率偏移组合模块中以计算最终载波频率偏移估计，由此可以实现精确的频率估计，并且可以确保频率偏移的适当的采集范围。

公开(公告)号：US20130272364A1

公开(公告)日：2013-10-17

申请号：US13597207

申请日：2012-08-28

申请人： Yun Zhang

发明人： Yun Zhang

IPC分类号： H04L27/01

CPC分类号： H04L25/022 ,  H04L25/0232 ,  H04L25/03159

摘要： Low-complexity channel noise reduction method and apparatus for multi-carrier mode in wireless LANs are disclosed. The method selects an optimal frequency domain channel impulse response by using a known long training sequence and a highly protected signaling sequence of the multi-carrier mode frame structure to ensure the receiver to have a good operation threshold in different time-delay spread environments at the cost of a low complexity. Instead of detecting time domain channel responses, the method directly performs noise reduction to a noise-containing frequency domain channel by using preset Wiener filtering coefficients to obtain multiple frequency domain channel responses, among which there must be a relatively optimal frequency domain channel response. The relatively optimal frequency domain channel response can be selected by using the highly protected signaling sequence to calculate the signaling frequency domain channel.

摘要翻译： 公开了一种用于无线LAN中的多载波模式的低复杂度信道降噪方法和装置。 该方法通过使用多载波模式帧结构的已知长训练序列和高度受保护的信令序列来选择最佳频域信道脉冲响应，以确保接收机在不同的时延传播环境中具有良好的操作阈值 成本低廉的复杂性。 该方法不是检测时域信道响应，而是通过使用预设的维纳滤波系数直接对包含噪声的频域信道进行降噪，以获得多个频域信道响应，其中必须存在相对最佳的频域信道响应。 可以通过使用高度保护的信令序列来选择相对最佳的频域信道响应来计算信令频域信道。