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    • 91. 发明申请
    • System for mimo equialization of multi-channel transceivers with precoding
    • 具有预编码的多通道收发器的mimo均衡系统
    • US20110255576A1
    • 2011-10-20
    • US12806538
    • 2010-08-16
    • Jie ChenKeshab K. Parhi
    • Jie ChenKeshab K. Parhi
    • H04B1/38H04L25/03H04L27/01
    • H04L25/03343H04B3/32H04L25/03038
    • The present invention relates to data processing techniques in multi-channel data transmission systems. In this invention, a method to efficiently deal with FEXT is proposed and a circuit architecture to implement the proposed MIMO-THP equalizer is developed for the application of high/ultra-high speed Ethernet systems. The proposed method relies on the fact that FEXT inherently contains information about the symbols transmitted from the far end transmitters and it can be viewed as a signal rather than noise. Compared with the traditional FEXT cancellation approaches, the proposed design inherits both advantages of MIMO equalization technique and TH precoding technique, thus having better performance. Unlike the existing MIMO-THP technology, the proposed design completely removes the feedback loops in the existing MIMO-THP architecture. Therefore, pipelining techniques can be easily applied to obtain a high-speed design of a multi-channel DSP transceiver.
    • 本发明涉及多通道数据传输系统中的数据处理技术。 在本发明中,提出了一种有效地处理FEXT的方法,并且为了应用高/超高速以太网系统开发了实现所提出的MIMO-THP均衡器的电路架构。 所提出的方法依赖于FEXT固有地包含关于从远端发射机发射的符号的信息的事实,并且它可以被视为信号而不是噪声。 与传统的FEXT消除方法相比,提出的设计继承了MIMO均衡技术和TH预编码技术的优点,具有更好的性能。 与现有的MIMO-THP技术不同,所提出的设计完全消除了现有MIMO-THP架构中的反馈环路。 因此,可以容易地应用流水线技术来获得多通道DSP收发器的高速设计。
    • 93. 发明授权
    • Reduced power output buffer
    • 减少功率输出缓冲器
    • US07612580B2
    • 2009-11-03
    • US12070374
    • 2008-02-15
    • Jie ChenTing-Yen ChiangKuang-Yu ChenChen Yu WangJoe Froniewski
    • Jie ChenTing-Yen ChiangKuang-Yu ChenChen Yu WangJoe Froniewski
    • H03K19/0175
    • H03K19/018521
    • A clock driving circuit and a method of driving a plurality of output lines for a PC architecture are disclosed. The clock driving circuit includes a clock generating circuit coupled to an output buffer for the PC having a plurality of output lines connected to a plurality of output loads having output load impedances. The output lines are driven differentially at an output voltage lower than a supply voltage. The circuit includes a voltage node having a voltage node impedance. The voltage node is maintained at substantially the output voltage. The circuit includes a current sinking transistor that sinks current from the voltage node. The current sinking transistor is operated in a linear region characterized by an ohmic resistance determined by the size of the current sinking transistor. The impedance of the voltage node is matched to one of the load impedances by sizing the current sinking transistor.
    • 公开了一种用于PC架构的时钟驱动电路和驱动多条输出线的方法。 时钟驱动电路包括一个时钟发生电路,该时钟发生电路耦合到用于PC的输出缓冲器,该输出缓冲器具有连接到具有输出负载阻抗的多个输出负载的多条输出线。 输出线在低于电源电压的输出电压下差分驱动。 该电路包括具有电压节点阻抗的电压节点。 电压节点维持在基本上的输出电压。 该电路包括吸收来自电压节点的电流的电流吸收晶体管。 电流吸收晶体管以由电流吸收晶体管的尺寸确定的欧姆电阻为特征的线性区域工作。 通过调整电流吸收晶体管的尺寸,将电压节点的阻抗与负载阻抗之一相匹配。
    • 95. 发明申请
    • ELECTRONIC DEVICE FOR INDICATING POI ACCORDING TO ROAD SEGMENT AND METHOD THEREOF
    • 电子装置,用于根据路段指示POI及其方法
    • US20080234931A1
    • 2008-09-25
    • US12049368
    • 2008-03-16
    • Chun-Yan WangJie Chen
    • Chun-Yan WangJie Chen
    • G01C21/36
    • G01C21/3682G09B29/007
    • An electronic device for indicating a POI corresponding to a new road segment when arriving at the new road segment includes an interface unit, for providing a setting of the POI to be displayed; a positioning system, for identifying the position of the electronic device; and a processor, for determining whether the electronic device is arriving at a new road segment according to the position of the electronic device, and retrieving information of a specific POI corresponding to the new road segment from a database if the electronic device is arriving at the new road segment, wherein the electronic device accesses the database and transmits the specific POI to the interface unit to indicate to a user only when it arrives at the new road segment.
    • 用于在到达新路段时指示与新路段对应的POI的电子设备包括用于提供要显示的POI的设置的接口单元; 定位系统,用于识别电子设备的位置; 以及处理器,用于根据所述电子设备的位置来确定所述电子设备是否到达新的路段;以及如果所述电子设备到达所述电子设备,则从数据库检索对应于所述新路段的特定POI的信息 新路段,其中所述电子设备访问所述数据库,并且将所述特定POI发送到所述接口单元,以仅在其到达所述新路段时向用户指示。