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41. 发明申请

US20090245781A1 APPARATUS AND METHOD FOR DETECTING TIMESLOT CONFLICT BETWEEN OPTICAL NETWORK UNITS IN OPTICAL COMMUNICATION NETWORK 审中-公开
标题翻译：用于检测光通信网络中光网络单元之间的时间冲突的装置和方法
公开(公告)号：US20090245781A1
公开(公告)日：2009-10-01
申请号：US12310329
申请日：2007-08-23
申请人： Jiang Qi , Hongbin Yu , Mohamad Nizam , Qiang Li
发明人： Jiang Qi , Hongbin Yu , Mohamad Nizam , Qiang Li
IPC分类号： H04J14/00
CPC分类号： H04B10/0779 , H04J3/1694
摘要： The objective of the present invention is to provide a solution for detecting timeslot conflict between Optical Network Units (ONUs) in an Optical Line Terminal (OLT). When all ONUs are deactivated and there is still any light signal in the upstream, each ONU is notified to switch off the power supply of its transmitter one by one to detect whether there is any failure ONU; when all ONUs are deactivated and there is no light signal in the upstream, the failed ONU can be located through ranging the ONUs separately. The solution can be implemented through software update, without affecting the intrinsic hardware design.
摘要翻译：本发明的目的是提供一种用于检测光线路终端（OLT）中的光网络单元（ONU）之间的时隙冲突的解决方案。当所有的ONU都被去激活，并且上游还有任何光信号时，通知每个ONU逐个关闭其发射机的电源，以检测ONU是否有故障; 当所有ONU都被禁用，上游没有光信号时，可以通过单独测量ONU来定位故障ONU。该解决方案可以通过软件更新实现，而不影响固有的硬件设计。

42. 发明授权

US07586342B2 Programmable amplitude compensation circuit 有权
标题翻译：可编程幅度补偿电路
公开(公告)号：US07586342B2
公开(公告)日：2009-09-08
申请号：US12072437
申请日：2008-02-26
申请人： Qiang Li , Razieh Roufoogaran
发明人： Qiang Li , Razieh Roufoogaran
IPC分类号： H03B1/00
CPC分类号： H03G3/001
摘要： According to one exemplary embodiment, an amplitude compensation circuit includes a first composite programmable buffer for receiving a first input signal with a first input amplitude. The amplitude compensation circuit further includes a second composite programmable buffer for receiving a second input signal with a second input amplitude. The amplitude compensation circuit also includes a feedback circuit coupled to respective outputs of the first and second composite programmable buffers. According to this embodiment, the feedback circuit compares a first output amplitude of the first composite programmable buffer with a reference voltage and a second output amplitude of the second composite programmable buffer with the reference voltage and provides first and second control signals for adjusting the respective gains of the first and second composite programmable buffers so as to reduce respective differences between the first and second output amplitudes and the reference voltage.
摘要翻译：根据一个示例性实施例，幅度补偿电路包括用于接收具有第一输入幅度的第一输入信号的第一复合可编程缓冲器。幅度补偿电路还包括用于接收具有第二输入幅度的第二输入信号的第二复合可编程缓冲器。振幅补偿电路还包括耦合到第一和第二复合可编程缓冲器的相应输出的反馈电路。根据该实施例，反馈电路将第一复合可编程缓冲器的第一输出幅度与具有参考电压的第二复合可编程缓冲器的参考电压和第二输出幅度进行比较，并提供用于调整相应增益的第一和第二控制信号的第一和第二复合可编程缓冲器，以便减小第一和第二输出幅度与参考电压之间的差异。

43. 发明申请

US20090100188A1 METHOD AND SYSTEM FOR CLUSTER-WIDE PREDICTIVE AND SELECTIVE CACHING IN SCALABLE IPTV SYSTEMS 审中-公开
标题翻译：用于可扩展IPTV系统中的群集预测和选择性高速缓存的方法和系统
公开(公告)号：US20090100188A1
公开(公告)日：2009-04-16
申请号：US11870563
申请日：2007-10-11
申请人： Qiang Li , Naxin Wang , Li-Cheng Tai , Zhen Zeng
发明人： Qiang Li , Naxin Wang , Li-Cheng Tai , Zhen Zeng
IPC分类号： G06F15/16
CPC分类号： H04N21/6125 , H04L65/4076 , H04L67/2852 , H04N21/23106 , H04N21/2393 , H04N21/2405 , H04N21/26283 , H04N21/4331 , H04N21/47202 , H04N21/8456
摘要： A method for caching of stream data is accomplished by assigning for each video segment in the system a likelihood rating of future showing and then determining for each node that contains a copy of the segment a second likelihood value that reflecting a probability that the node will be used to serve streams for the segment. The future cost value of a segment copy is then predicted and preload orders are issued to nodes for segments with the per-copy likelihood above a predefined threshold.
摘要翻译：用于缓存流数据的方法是通过为系统中的每个视频段分配未来显示的可能性等级，然后为包含该段的副本的每个节点确定第二似然值来反映该节点将被用于为细分市场提供流。然后预测片段副本的未来成本值，并且将预加载顺序发布给每个副本可能性高于预定义阈值的段的节点。

44. 发明申请

US20090019493A1 CACHE AFFILIATION IN IPTV EPG SERVER CLUSTERING 审中-公开
标题翻译： IPTV EPG服务器群集中的高速缓存处理
公开(公告)号：US20090019493A1
公开(公告)日：2009-01-15
申请号：US11776947
申请日：2007-07-12
申请人： Qiang Li , Chen Ma , Huiyou Zhu , Naxin Wang
发明人： Qiang Li , Chen Ma , Huiyou Zhu , Naxin Wang
IPC分类号： H04N5/445
CPC分类号： H04N7/17336 , H04N21/23116 , H04N21/2393 , H04N21/84
摘要： An EPG service architecture incorporates multiple EPG servers connected in a cluster. An active dispatcher is associated with at least one EPG server and multiple standby dispatchers are associated with the cluster. A plurality of STBs interfaced with the EPG server cluster issue requests for EPG service for which the active dispatcher employs an affiliation table as a portion of the cache for redirecting each request to a specific one of the EPG servers affiliated with the STB issuing the request. The active dispatcher multicasts the affiliation table to the multiple standby dispatchers for synchronization.
摘要翻译： EPG服务架构集成了多个连接在集群中的EPG服务器。主动调度器与至少一个EPG服务器相关联，并且多个备用调度器与集群相关联。与EPG服务器集群接口的多个STB发出对EPG服务的请求，活动调度员使用附属表作为缓存的一部分，将每个请求重定向到与发出请求的STB相关联的EPG服务器的特定一个。活动分派器将附属表组播到多个备用分派器进行同步。

45. 发明申请

US20080258837A1 BALUN SIGNAL TRANSFORMER 审中-公开
标题翻译： BALUN信号变压器
公开(公告)号：US20080258837A1
公开(公告)日：2008-10-23
申请号：US11737270
申请日：2007-04-19
申请人： Lianjun Liu , Qiang Li
发明人： Lianjun Liu , Qiang Li
IPC分类号： H03H7/42
CPC分类号： H03H7/42 , H03H7/1775 , H03H2001/0078
摘要： A system 20 includes an unbalanced device 22, a balanced device 24, and a balun (balanced-unbalanced) signal transformer 26 interposed between devices 22 and 24. The balun signal transformer 26 includes a balanced external port section 32 formed by ports 40 and 42. The balun signal transformer 26 includes a symmetric transformer 48 having a balanced port 50 formed by terminals 52 and 54. Terminal 52 is electrically interconnected with port 40, and an inductor 64 is interposed between terminal 54 and port 42. The inductor 64 shifts a phase of a signal component 72 at terminal 54 to balance substantially one hundred eighty degrees out-of-phase with a signal component 70 at terminal 52.
摘要翻译：系统20包括不平衡装置22，平衡装置24和插入在装置22和24之间的平衡 - 不平衡转换器（平衡 - 不平衡）信号变压器26.平衡不平衡变换器信号变压器26包括由端口40和42形成的平衡外部端口部分32 平衡不平衡变压器信号变压器26包括具有由端子52和54形成的平衡端口50的对称变压器48.端子52与端口40电互连，并且电感器64插入在端子54和端口42之间。电感器64移位在端子54处的信号部件72的相位相平衡，以平衡与端子52处的信号部件70基本上相差180度的异相。

46. 发明申请

US20080240263A1 OFDM/OFDMA TIMING SYNCHRONIZATION USING NON-CONSECUTIVE PILOT SUBCARRIER ASSIGNMENT 有权
标题翻译： OFDM / OFDMA时序同步使用非相关的导频子载波分配
公开(公告)号：US20080240263A1
公开(公告)日：2008-10-02
申请号：US11694647
申请日：2007-03-30
申请人： Qiang Li
发明人： Qiang Li
IPC分类号： H04L27/28
CPC分类号： H04L25/0212 , H04L5/0007 , H04L25/0216 , H04L27/261
摘要： Systems and methods which are adapted determine timing with respect to an orthogonal frequency division (OFD) channel, such as may be used with respect to an OFDM or OFDMA systems through reliably identifying timing of a first arriving signal path. Embodiments use deconvolution to construct the channel impulse response associated with a received signal. The first arriving path for the received signal may readily and reliably be determined using the channel impulse response information.
摘要翻译：被适配的系统和方法确定相对于正交频分（OFD）信道的定时，例如可以通过可靠地识别第一到达信号路径的定时来相对于OFDM或OFDMA系统使用。实施例使用去卷积来构造与接收信号相关联的信道脉冲响应。可以使用信道脉冲响应信息容易且可靠地确定接收信号的第一到达路径。

47. 发明申请

US20080162408A1 Method And System For Network Search 有权
标题翻译：网络搜索方法与系统
公开(公告)号：US20080162408A1
公开(公告)日：2008-07-03
申请号：US12050716
申请日：2008-03-18
申请人： Qiang Li
发明人： Qiang Li
IPC分类号： G06F17/30
CPC分类号： G06F17/30699 , G06F17/30864
摘要： The present invention provides a network search system, including: a search initiating client, configured to initiate a search request to a resource search server, and acquire network resource according to a resource feature information index returned by a resource search server; the resource search server, configured to acquire a search response client corresponding to the search initiating client according to a corresponding relation between the search response client and the search initiating client, search a resource index server corresponding to the search response client according to the search request, and return the resource feature information index to the search initiating client; the resource index server, configured to store the resource feature information index reported by the search response client. A network search method is also disclosed. By use of the present invention, it is possible to improve the instant performance of network search and the individuation of the search result.
摘要翻译：本发明提供一种网络搜索系统，包括：搜索发起客户端，被配置为向资源搜索服务器发起搜索请求，并根据资源搜索服务器返回的资源特征信息索引获取网络资源; 所述资源搜索服务器被配置为根据所述搜索响应客户端和所述搜索发起客户端之间的对应关系来获取与所述搜索发起客户端对应的搜索响应客户端，根据所述搜索请求搜索对应于所述搜索响应客户端的资源索引服务器并将资源特征信息索引返回给搜索发起客户端; 资源索引服务器，被配置为存储由搜索响应客户端报告的资源特征信息索引。还公开了网络搜索方法。通过使用本发明，可以提高网络搜索的即时性能和搜索结果的个性化。

48. 发明申请

US20080136498A1 Method and System for Buffering A Clock Signal 审中-公开
标题翻译：缓冲时钟信号的方法和系统
公开(公告)号：US20080136498A1
公开(公告)日：2008-06-12
申请号：US11618863
申请日：2006-12-31
申请人： Razieh Roufoogaran , Qiang Li , Bojko Marholev
发明人： Razieh Roufoogaran , Qiang Li , Bojko Marholev
IPC分类号： H03K3/01
CPC分类号： H03K5/003 , H03K5/02 , H04L27/3863
摘要： A method and system for buffering a clock signal is provided. The method may include self-biasing a PMOS transistor of a buffer, utilized for amplifying an in-phase/quadrature phase signal, to produce a first bias voltage at the gate of a PMOS transistor, and biasing an NMOS transistor of the buffer via a controllable current source to produce a second bias voltage at the gate of the NMOS transistor. The gain of the buffer may be controlled by varying a controllable current source coupled to a second NMOS transistor configured as a diode. Two coupling capacitors may be utilized to remove a DC component of the signal. Multiple buffers may be coupled end-to-end to increase the overall drive capability, where the channel width of the transistors within the transistors may be doubled in each successive buffer.
摘要翻译：提供了一种用于缓冲时钟信号的方法和系统。该方法可以包括自偏压缓冲器的PMOS晶体管，用于放大同相/正交相位信号，以在PMOS晶体管的栅极处产生第一偏置电压，并经由一个PMOS晶体管偏置缓冲器的NMOS晶体管可控电流源，以在NMOS晶体管的栅极处产生第二偏置电压。可以通过改变耦合到配置为二极管的第二NMOS晶体管的可控电流源来控制缓冲器的增益。可以使用两个耦合电容器来去除信号的DC分量。多个缓冲器可以端对端耦合以增加总体驱动能力，其中晶体管内的晶体管的沟道宽度可以在每个连续的缓冲器中加倍。

49. 发明申请

US20080005349A1 DISTRIBUTED MULTIMEDIA STREAMING SYSTEM 审中-公开
标题翻译：分布式多媒体流媒体系统
公开(公告)号：US20080005349A1
公开(公告)日：2008-01-03
申请号：US11744924
申请日：2007-05-07
申请人： Qiang Li , Jifei Song , Zhen Zeng , Naxin Wang
发明人： Qiang Li , Jifei Song , Zhen Zeng , Naxin Wang
IPC分类号： G06F15/16
CPC分类号： H04L65/4076 , H04L12/1859 , H04L67/1002 , H04L67/1008 , H04L67/101 , H04L67/1021 , H04L67/1023
摘要： A media content distribution system for distributed multimedia streaming communicates over a network and incorporates multiple independent media stations, each having a media director for control and a number of media engines for storage, retrieval and streaming of media content. A content request from a media console connected to the network is redirected by the media director to a selected one of the media engines storing content corresponding to the request for streaming. Statistical indicators are defined for measuring effectiveness of the content distribution network. Push and pull indicators with additional differentiation for remote and local access to pulled content provide means for efficiency determination of data distribution and storage. A middleware Application Programming Interface (API) structure is provided for flexible interfacing between media consoles and content distribution system components.
摘要翻译：用于分布式多媒体流的媒体内容分发系统通过网络进行通信，并且包括多个独立媒体站，每个独立媒体站具有用于控制的媒体导向器和用于媒体内容的存储，检索和流媒体的多个媒体引擎。来自连接到网络的媒体控制台的内容请求被媒体主管重定向到存储与流请求请求相对应的内容的所选媒体引擎之一。统计指标用于衡量内容分发网络的有效性。推拉指标，具有远程和本地访问拉动内容的其他差异，为数据分配和存储的效率确定提供了手段。提供了中间件应用编程接口（API）结构，用于媒体控制台和内容分发系统组件之间的灵活接口。

50. 发明申请

US20080003968A1 LO generator to reject unwanted sideband 有权
标题翻译： LO发生器来拒绝不必要的边带
公开(公告)号：US20080003968A1
公开(公告)日：2008-01-03
申请号：US11478667
申请日：2006-06-30
申请人： Qiang Li
发明人： Qiang Li
IPC分类号： H04B1/40 , H04B1/06
CPC分类号： H04B1/0082 , H03B19/00
摘要： According to an example embodiment, an apparatus is provided in a wireless transceiver. The apparatus may include a circuit configured to generate a first frequency signal (e.g., a VCO signal). A local oscillator (LO) generator may be provided that includes a frequency divider to divide the first frequency signal, and an image rejection mixer configured to mix the first frequency signal with an output of the frequency divider to generate an LO signal. In this manner, the LO generator may generate a desired LO signal while substantially rejecting or suppressing an unwanted sideband or image signal, according to an example embodiment.
摘要翻译：根据示例实施例，在无线收发器中提供一种装置。该装置可以包括被配置为产生第一频率信号（例如，VCO信号）的电路。可以提供本地振荡器（LO）发生器，其包括用于分频第一频率信号的分频器和被配置为将第一频率信号与分频器的输出混合以产生LO信号的镜像抑制混频器。以这种方式，根据示例实施例，LO发生器可以产生期望的LO信号，同时基本上拒绝或抑制不期望的边带或图像信号。

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