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    • 61. 发明申请
    • SEPARATION DEVICE AND METHOD FOR TRANSMITTING VOICE SIGNAL
    • 分离设备和发送语音信号的方法
    • US20110182286A1
    • 2011-07-28
    • US13078469
    • 2011-04-01
    • Ke ZhangXin Liu
    • Ke ZhangXin Liu
    • H04L12/66
    • H04M1/738H04M1/2535H04M11/062H04M2203/2066
    • A separation device and a method for transmitting voice signal are disclosed. The separation device includes a line interface adapted to provide an interface for connecting to a telecommunication access system which provides public switched telephone network (PSTN) and data services; a data interface adapted to provide an interface connected with customer premises equipment (CPE) and connected with the line interface; a first communication interface adapted to provide an interface connected with a PSTN communication terminal; a second communication interface adapted to provide an interface connected with a foreign exchange station (FXS) interface of the CPE; and a connection switching unit adapted to connect the first communication interface with the line interface or connect the first communication interface with the second communication interface, and to perform switching between the two connections to implement PSTN communication or VoIP communication respectively. The solution in the embodiment may help perform switching with a PSTN communication terminal connection line according to different call types so that the PSTN communication terminal may implement the PSTN communication and the VoIP communication respectively.
    • 公开了一种用于发送语音信号的分离装置和方法。 分离装置包括适于提供用于连接到提供公共交换电话网络(PSTN)和数据服务的电信接入系统的接口的线路接口; 数据接口,其适于提供与客户驻地设备(CPE)连接并且与线路接口连接的接口; 第一通信接口,适于提供与PSTN通信终端连接的接口; 第二通信接口,适于提供与所述CPE的外汇站(FXS)接口相连接的接口; 以及连接切换单元,其适于将所述第一通信接口与所述线路接口连接或者将所述第一通信接口与所述第二通信接口连接,并且在所述两个连接之间进行切换以分别实现PSTN通信或VoIP通信。 本实施例的解决方案可以根据不同的呼叫类型来帮助用PSTN通信终端连接线进行切换,从而PSTN通信终端可以分别实现PSTN通信和VoIP通信。
    • 64. 发明授权
    • Systems and methods for clean DQS signal generation in source-synchronous DDR2 interface design
    • 在源同步DDR2接口设计中清洁DQS信号产生的系统和方法
    • US07590025B2
    • 2009-09-15
    • US12004177
    • 2007-12-19
    • Yong WangLiang ZhangXin Liu
    • Yong WangLiang ZhangXin Liu
    • G11C8/18
    • G11C7/1078G11C7/1087G11C7/1093
    • A method and circuit for generating a signal to synchronize DQ data transfer in memory interface design is presented. The presented method includes receiving a strobe signal having a preamble period before and post-amble period after data transfer burst synchronization signal edge transitions, determining a timing location of the strobe signal preamble period, determining a timing location of the strobe signal post-amble period, and generating a clean strobe signal that tracks the data transfer burst synchronization edge transitions of the strobe signal after the strobe signal preamble begins and before the strobe signal post-amble ends based on the respective determined timing locations of the strobe signal preamble and post-amble periods. In this manner, DQ data transfer may be synchronized according to the burst synchronization signal edge transitions and errors caused by strobe signal level jitter during the preamble and post-amble periods are reduced.
    • 提出了一种用于生成信号以同步存储器接口设计中的DQ数据传输的方法和电路。 所提出的方法包括在数据传输脉冲串同步信号边沿转换之后接收具有在前后周期之前的前导码周期的选通信号,确定选通信号前导码周期的定时位置,确定选通信号后同步周期的定时位置 并且产生干净的选通信号,其在选通信号前导码开始之后并且在选通信号后同步码结束之后,基于选通信号前导码和后置信号的相应确定的定时位置跟踪选通信号的数据传输脉冲串同步边沿转变, 时间段 以这种方式,DQ数据传输可以根据突发同步信号边沿转变和在前导码和后导码周期期间由选通信号电平抖动引起的错误来同步。
    • 68. 发明授权
    • Method and apparatus for utilizing historical network information for mitigating excessive network updates when selecting a communications channel
    • 用于在选择通信信道时利用历史网络信息来减轻过多的网络更新的方法和装置
    • US07333811B2
    • 2008-02-19
    • US10928006
    • 2004-08-27
    • Xin Liu
    • Xin Liu
    • H04Q7/20
    • H04W48/20H04W28/26H04W60/00
    • A method and apparatus utilizing historical network information for mitigating excessive network updates when performing channel selection between a serving base transceiver station and an adjacent base transceiver station when determined channel selection would result in either a Location Area Update (LAU) or a Routing Area Update (RAU) is presented. If a network update, either LAU or RAU, is the first occurrence, network identification information for the LA or RA is stored and an incremental value indicating occurrence is set; else in the case occurrence is not the first, the incremental value is incremented. A first margin value is then selected if the incremented value does not meet or exceed a predetermined value, or a second margin value is selected if the incremented value does meet or exceed a predetermined value. The signal level of the adjacent base transceiver station is then compared to the reference signal level of the serving base transceiver station plus the selected margin value in order to determine channel selection.
    • 一种方法和装置,当确定的信道选择将导致位置区域更新(LAU)或路由区域更新(LAU)或路由区域更新(LAU)时,利用历史网络信息来减轻在服务基站收发台与相邻基站收发信机之间进行信道选择时的过度网络更新 RAU)。 如果网络更新(LAU或RAU)是第一次出现,则存储LA或RA的网络识别信息,并且设置指示发生的增量值; 否则在发生不是第一个的情况下,增量值增加。 如果递增值不满足或超过预定值,则选择第一余量值,或者如果增量值达到或超过预定值,则选择第二余量值。 然后将相邻基站收发器的信号电平与服务基站收发器的参考信号电平加上所选择的余量值进行比较,以便确定信道选择。
    • 69. 发明授权
    • Adaptive acknowledgment delay
    • 自适应确认延迟
    • US07290195B2
    • 2007-10-30
    • US10794330
    • 2004-03-05
    • Zihua GuoRichard YaoWenwu ZhuXin Liu
    • Zihua GuoRichard YaoWenwu ZhuXin Liu
    • H04L1/18
    • H04L1/1607G06F2213/0038H04L1/1825H04L1/1854
    • Adaptive acknowledgement delay entails adaptively adjusting an acknowledgement delay period responsive to channel quality. A destination device is enabled to set the acknowledgment delay period between two successive acknowledgments that acknowledge blocks received from a source device over a wireless channel. In a described implementation, the acknowledgment delay period is decreased if the wireless channel quality is poor. Otherwise, the acknowledgment delay period is increased as bounded by a maximum acknowledgment delay period setting and a remaining number of unreceived blocks of a current suprablock. The quality of the wireless channel may be reflected by, for example, blocks that are received erroneously. The duration of the acknowledgment delay may be set in terms of number of blocks received at the destination device.
    • 自适应确认延迟需要响应于信道质量自适应地调整确认延迟时段。 目的地设备能够在确认通过无线信道从源设备接收的块的两个连续确认之间设置确认延迟时段。 在所描述的实现中,如果无线信道质量差,则确认延迟周期减少。 否则,确认延迟周期由最大确认延迟周期设置和当前超块的未接收块的剩余数量限制而增加。 无线信道的质量可以由例如错误接收的块来反映。 可以根据在目的地设备处接收到的块的数量来设置确认延迟的持续时间。