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1. 发明申请

US20080231505A1 Method of Source Number Estimation and Its Application in Method of Direction of Arrival Estimation 有权
标题翻译：源数估计方法及其在到达方向估计方法中的应用
公开(公告)号：US20080231505A1
公开(公告)日：2008-09-25
申请号：US12051569
申请日：2008-03-19
申请人： Weiqing Zhu , Jun Hu , Xiaodong Liu , Zhiyu Liu , Feng Pan
发明人： Weiqing Zhu , Jun Hu , Xiaodong Liu , Zhiyu Liu , Feng Pan
IPC分类号： G01S3/00
CPC分类号： G01S3/74
摘要： The present invention provides a method of source number estimation based on eigenspace in DOA estimation, including: (1) obtaining signals received by uniform linear array; (2) calculating a covariance matrix according to the received signals; (3) calculating a complex-valued covariance matrix or a covariance matrix after real-valued computations; (4) conducting eigendecomposition to the covariance matrix to obtain its eigenvector matrix; (5) calculating a source number decision based on the eigenvector; (6) calculating a ratio; and (7) source number estimation. The present invention can accurately estimate source number and save huge amounts of computation during signal processing in DOA estimation, and lower the cost of hardware.
摘要翻译：本发明提供了一种基于DOA估计中的本征空间的源数估计方法，包括：（1）获得均匀线性阵列接收的信号; （2）根据接收信号计算协方差矩阵; （3）在实值计算之后计算复值协方差矩阵或协方差矩阵; （4）对协方差矩阵进行特征分解，得到其特征向量矩阵; （5）基于特征向量计算源数量决定; （6）计算比率; 和（7）源数估计。本发明可以在DOA估计中的信号处理期间准确地估计源数量并节省大量的计算量，降低硬件成本。

2. 发明授权

US07876264B2 Method of source number estimation and its application in method of direction of arrival estimation 有权
标题翻译：源数估计方法及其在到达方向估计方法中的应用
公开(公告)号：US07876264B2
公开(公告)日：2011-01-25
申请号：US12051569
申请日：2008-03-19
申请人： Weiqing Zhu , Jun Hu , Xiaodong Liu , Zhiyu Liu , Feng Pan
发明人： Weiqing Zhu , Jun Hu , Xiaodong Liu , Zhiyu Liu , Feng Pan
IPC分类号： G01S5/02 , G01S3/14
CPC分类号： G01S3/74
摘要： The present invention provides a method of source number estimation based on eigenspace in DOA estimation, including: (1) obtaining signals received by uniform linear array; (2) calculating a covariance matrix according to the received signals; (3) calculating a complex-valued covariance matrix or a covariance matrix after real-valued computations; (4) conducting eigendecomposition to the covariance matrix to obtain its eigenvector matrix; (5) calculating a source number decision based on the eigenvector; (6) calculating a ratio; and (7) source number estimation. The present invention can accurately estimate source number and save huge amounts of computation during signal processing in DOA estimation, and lower the cost of hardware.
摘要翻译：本发明提供了一种基于DOA估计中的本征空间的源数估计方法，包括：（1）获得均匀线性阵列接收的信号; （2）根据接收信号计算协方差矩阵; （3）在实值计算之后计算复值协方差矩阵或协方差矩阵; （4）对协方差矩阵进行特征分解，得到其特征向量矩阵; （5）基于特征向量计算源数量决定; （6）计算比率; 和（7）源数估计。本发明可以在DOA估计中的信号处理期间准确地估计源数量并节省大量的计算量，降低硬件成本。

3. 发明授权

US08612932B2 Unified framework and method for call control and media control 有权
标题翻译：用于呼叫控制和媒体控制的统一框架和方法
公开(公告)号：US08612932B2
公开(公告)日：2013-12-17
申请号：US13088396
申请日：2011-04-17
申请人： Wei Chen , Zhiyu Liu , Xiaopu Zhu , Jose Maria de Castro, Jr.
发明人： Wei Chen , Zhiyu Liu , Xiaopu Zhu , Jose Maria de Castro, Jr.
IPC分类号： G06F9/44
CPC分类号： G06F8/20 , H04L65/1006
摘要： A communication system and method include a server hosting an interactive voice response or self-help application in a Java virtual machine. The communication application is programmed with a unified communication API, which is provided by a unified application framework. The API provides a set of unified class objects for call control and media control. The unified class objects are constructed from class object primitives of individual standards-based Java call control API and media control API. The constructs are a structured and restricted set conforming to the object model of the application and its states. The API has a unified event handler for both call and media controls and dispatches events to the application based on the type of event and the application state of the object model.
摘要翻译：通信系统和方法包括在Java虚拟机中托管交互式语音响应或自助应用的服务器。通信应用程序由统一的通信API编程，由统一的应用程序框架提供。 API提供了一组用于呼叫控制和媒体控制的统一类对象。统一的类对象由单个基于标准的Java调用控制API和媒体控制API的类对象基元构成。构造是符合应用程序的对象模型及其状态的结构化和受限制的集合。 API具有统一的事件处理程序，用于呼叫和媒体控件，并根据事件类型和对象模型的应用程序状态将事件分派给应用程序。

4. 发明申请

US20090218994A1 Resonance DC/DC Converter and Control Method Thereof 有权
标题翻译：谐振DC / DC转换器及其控制方法
公开(公告)号：US20090218994A1
公开(公告)日：2009-09-03
申请号：US12087278
申请日：2006-12-29
申请人： Zhiyu Liu , Chunhui Zhu , Haizhou Zhao
发明人： Zhiyu Liu , Chunhui Zhu , Haizhou Zhao
IPC分类号： G05F1/10
CPC分类号： H02M3/337 , H02M1/4241 , H02M3/3376 , H02M2001/0058 , Y02B70/126 , Y02B70/1433 , Y02B70/1491
摘要： The present invention refers to a method for controlling a resonance DC/DC converter, which adjusts an output voltage by changing a turn-on frequency of input switch devices of a resonance circuit of the converter, and extends the range of the output voltage of the resonance circuit by adjusting the duty ratio of the switch devices based on the feedback signal of the load circuit. The present invention also provides the resonance DC/DC converter structure using the controlling method. The advantage of the present invention lies in the use of two modes of frequency modulation and frequency modulation plus pulse width modulation to control the resonance DC/DC converter; the use of the frequency modulation controlling mode when the operating frequency of the power supply is low, and introducing the frequency modulation plus pulse width modulation controlling mode when the operating frequency of the power supply is too high. As a result, the problem of the resonance converter, that is, the high operating frequency and the big loss of the circuit when the circuit operates at a light load and non-load, can be solved, and thus the regulation ability for the output voltage of the resonance circuit is enormously improved, and the output range of the voltage is effectively expanded.
摘要翻译：本发明涉及一种用于控制谐振DC / DC转换器的方法，该谐振DC / DC转换器通过改变转换器的谐振电路的输入开关器件的接通频率来调节输出电压，并且扩展了输出电压的范围通过根据负载电路的反馈信号调整开关装置的占空比来进行谐振电路。本发明还提供使用该控制方法的谐振DC / DC转换器结构。本发明的优点在于使用两种调制方式和频率调制加脉冲宽度调制来控制谐振DC / DC转换器; 当电源的工作频率低时使用频率调制控制模式，并且当电源的工作频率太高时引入频率调制加脉冲宽度调制控制模式。结果，可以解决谐振转换器的问题，即当电路在轻负载和无负载下工作时，高工作频率和电路的大损耗，因此可以解决输出的调节能力大大提高了谐振电路的电压，有效地扩大了电压的输出范围。

5. 发明申请

US20110258305A1 Servlet API and Method for XMPP Protocol 有权
标题翻译： Servlet API和XMPP协议方法
公开(公告)号：US20110258305A1
公开(公告)日：2011-10-20
申请号：US13088394
申请日：2011-04-17
申请人： Wei Chen , Xiaopu Zhu , Zhiyu Liu , Pubing Zhang
发明人： Wei Chen , Xiaopu Zhu , Zhiyu Liu , Pubing Zhang
IPC分类号： G06F15/173
CPC分类号： H04L41/20 , H04L12/1813 , H04L51/04 , H04L67/02 , H04L67/142
摘要： A communication system and method include a server hosting an interactive voice response or self-help application in a Java virtual machine. In order to leverage the advantages and facilities of the Java servlet model, a Java XMPP (Extensible Messaging and Presence Protocol) servlet container is provided for the server so that the communication application can be programmed with objects defined by an XMPP servlet API, as well as objects defined by the standards-based Java EE platform such as HTTP and SIP servlets, in order to service an XMPP client. In addition to the generic class objects of the Java servlet model, the API also provides a set of XMPP-specific class objects. The Java XMPP servlet container includes a network point at a transport level for handling network connections, an XMPP service layer for managing XMPP sessions and streams, and an application layer for managing XMPP stanzas.
摘要翻译：通信系统和方法包括在Java虚拟机中托管交互式语音响应或自助应用的服务器。为了利用Java servlet模型的优点和功能，为服务器提供了Java XMPP（可扩展消息传递和存在协议）servlet容器，以便通信应用程序也可以使用XMPP servlet API定义的对象进行编程作为由基于标准的Java EE平台（如HTTP和SIP servlet）定义的对象，以便为XMPP客户端提供服务。除了Java servlet模型的通用类对象之外，API还提供了一组特定于XMPP的类对象。 Java XMPP servlet容器包含用于处理网络连接的传输级别的网络点，用于管理XMPP会话和流的XMPP服务层以及用于管理XMPP节的应用层。

6. 发明申请

US20070176642A1 Domino logic circuit techniques for suppressing subthreshold and gate oxide leakage 有权
标题翻译：用于抑制亚阈值和栅极氧化物泄漏的Domino逻辑电路技术
公开(公告)号：US20070176642A1
公开(公告)日：2007-08-02
申请号：US11701061
申请日：2007-01-31
申请人： Volkan Kursun , Zhiyu Liu
发明人： Volkan Kursun , Zhiyu Liu
IPC分类号： H03K19/096
CPC分类号： H03K19/0966
摘要： Circuits are provided for simultaneously reducing the subthreshold and gate oxide leakage power consumption in domino logic circuits. Sleep transistors and a dual threshold voltage CMOS technology may be utilized to place idle domino logic circuits into a low leakage state. The circuits may significantly lower the total leakage power as compared to the standard dual threshold voltage domino logic circuits at both the high and low die temperatures. The energy overheads of the circuit techniques may be low, justifying the activation of the proposed sleep schemes by providing net savings in total power consumption during short idle periods.
摘要翻译：提供了电路，用于同时减少多米诺逻辑电路中的亚阈值和栅极氧化物泄漏功耗。可以利用睡眠晶体管和双阈值电压CMOS技术将空闲多米诺逻辑电路置于低泄漏状态。与标准双阈值电压多米诺逻辑电路相比，在高温和低压模温度下，电路可以显着降低总漏电功率。电路技术的能量开销可能很低，通过在短暂的空闲时段期间提供总的功耗的净节省来证明所提出的睡眠方案的激活。

7. 发明授权

US09215079B2 Servlet API and method for XMPP protocol 有权
标题翻译： Servlet API和XMPP协议方法
公开(公告)号：US09215079B2
公开(公告)日：2015-12-15
申请号：US13088394
申请日：2011-04-17
申请人： Wei Chen , Xiaopu Zhu , Zhiyu Liu , Pubing Zhang
发明人： Wei Chen , Xiaopu Zhu , Zhiyu Liu , Pubing Zhang
IPC分类号： G06F15/173 , H04L12/18 , H04L12/58 , H04L29/08
CPC分类号： H04L41/20 , H04L12/1813 , H04L51/04 , H04L67/02 , H04L67/142
摘要： A communication system and method include a server hosting an interactive voice response or self-help application in a Java virtual machine. In order to leverage the advantages and facilities of the Java servlet model, a Java XMPP (Extensible Messaging and Presence Protocol) servlet container is provided for the server so that the communication application can be programmed with objects defined by an XMPP servlet API, as well as objects defined by the standards-based Java EE platform such as HTTP and SIP servlets, in order to service an XMPP client. In addition to the generic class objects of the Java servlet model, the API also provides a set of XMPP-specific class objects. The Java XMPP servlet container includes a network point at a transport level for handling network connections, an XMPP service layer for managing XMPP sessions and streams, and an application layer for managing XMPP stanzas.
摘要翻译：通信系统和方法包括在Java虚拟机中托管交互式语音响应或自助应用的服务器。为了利用Java servlet模型的优点和功能，为服务器提供了Java XMPP（可扩展消息传递和存在协议）servlet容器，以便通信应用程序也可以使用XMPP servlet API定义的对象进行编程作为由基于标准的Java EE平台（如HTTP和SIP servlet）定义的对象，以便为XMPP客户端提供服务。除了Java servlet模型的通用类对象之外，API还提供了一组特定于XMPP的类对象。 Java XMPP servlet容器包含用于处理网络连接的传输级别的网络点，用于管理XMPP会话和流的XMPP服务层以及用于管理XMPP节的应用层。

8. 发明申请

US20110258597A1 Unified Framework and Method for Call Control and Media Control 有权
标题翻译：统一的呼叫控制和媒体控制框架和方法
公开(公告)号：US20110258597A1
公开(公告)日：2011-10-20
申请号：US13088396
申请日：2011-04-17
申请人： Wei Chen , Zhiyu Liu , Xiaopu Zhu , Jose Maria de Castro, JR.
发明人： Wei Chen , Zhiyu Liu , Xiaopu Zhu , Jose Maria de Castro, JR.
IPC分类号： G06F9/44 , G06F9/445
CPC分类号： G06F8/20 , H04L65/1006
摘要： A communication system and method include a server hosting an interactive voice response or self-help application in a Java virtual machine. The communication application is programmed with a unified communication API, which is provided by a unified application framework. The API provides a set of unified class objects for call control and media control. The unified class objects are constructed from class object primitives of individual standards-based Java call control API and media control API. The constructs are a structured and restricted set conforming to the object model of the application and its states. The API has a unified event handler for both call and media controls and dispatches events to the application based on the type of event and the application state of the object model.
摘要翻译：通信系统和方法包括在Java虚拟机中托管交互式语音响应或自助应用的服务器。通信应用程序由统一的通信API编程，由统一的应用程序框架提供。 API提供了一组用于呼叫控制和媒体控制的统一类对象。统一的类对象由单个基于标准的Java调用控制API和媒体控制API的类对象基元构成。构造是符合应用程序的对象模型及其状态的结构化和受限制的集合。 API具有统一的事件处理程序，用于呼叫和媒体控件，并根据事件类型和对象模型的应用程序状态将事件分派给应用程序。

9. 发明授权

US09241012B2 System and method for telephony and communication services with message-based API 有权
标题翻译：用于基于消息的API的电话和通信服务的系统和方法
公开(公告)号：US09241012B2
公开(公告)日：2016-01-19
申请号：US13187253
申请日：2011-07-20
申请人： Jose Maria de Castro, Jr. , Neil Stratford , Wei Chen , Zhiyu Liu , Xiaopu Zhu , Jason Scott Goecke
发明人： Jose Maria de Castro, Jr. , Neil Stratford , Wei Chen , Zhiyu Liu , Xiaopu Zhu , Jason Scott Goecke
IPC分类号： G06F15/16 , G06F15/177 , H04L29/06 , G06F9/44 , G06F9/54
CPC分类号： H04L67/42 , G06F9/4488 , G06F9/54 , G06F2209/541 , H04L65/1006 , H04L65/1009 , H04L65/1043 , H04L65/1053 , H04L67/1002
摘要： A communication application server is provided with a unified framework for call control and media control. The framework supports a unified API having class objects and functions conforming to a telephony object model. The class objects are invoked and manipulated by a finite set of commands and an application program essentially issues a series of such commands to operate the communication application server. More particularly, an API server on the communication application server defining a messaging API protocol enables an application script to pass commands remotely to the communication application server to operate it. This allows application scripts to be processed remotely by appropriate scripting engines. In this way, application scripting is decoupled from the operation of the communication application server, which only needs to focus on providing basic communication services.
摘要翻译：通信应用服务器具有用于呼叫控制和媒体控制的统一框架。该框架支持具有符合电话对象模型的类对象和功能的统一API。类对象被有限的命令集调用和操纵，并且应用程序基本上发出一系列这样的命令来操作通信应用服务器。更具体地，定义消息API协议的通信应用服务器上的API服务器使得应用脚本能够将命令远程地传递到通信应用服务器来进行操作。这允许通过适当的脚本引擎远程处理应用程序脚本。以这种方式，应用脚本与通信应用服务器的操作脱钩，通信应用服务器只需要专注于提供基本的通信服务。

10. 外观设计

USD714861S1 Printer 有权
公开(公告)号：USD714861S1
公开(公告)日：2014-10-07
申请号：US29447458
申请日：2013-03-04
申请人： Naoto Tsuruoka , Masahiro Yonekawa , Weijiang Sun , Zhiyu Liu
设计人： Naoto Tsuruoka , Masahiro Yonekawa , Weijiang Sun , Zhiyu Liu

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