Robust downlink timing synchronization method in LTE system
    2.
    发明授权
    Robust downlink timing synchronization method in LTE system 有权
    LTE系统中稳健的下行定时同步方法

    公开(公告)号:US09107158B2

    公开(公告)日:2015-08-11

    申请号:US14006960

    申请日:2012-01-11

    IPC分类号: H04W56/00 H04J11/00

    CPC分类号: H04W56/003 H04J11/0073

    摘要: A robust downlink timing synchronization method for reducing the influence of initial frequency offset and ensuring the timing synchronization in a low signal-to-noise ratio interval in an LTE system, which includes: step 1: a receiving terminal continuously storing time domain signal sequences of M PSS transmission periods; step 2: performing narrowband filtering on the time domain signal sequences of the M PSS transmission periods; step 3: performing down-sampling on data obtained after the filtering; step 4: performing sliding differential mirror correlation on the down-sampling data of an mth PSS transmission period to obtain a correlation value of an ith instant; step 5: superposing correlation results to obtain a superposition result; and step 6: determining whether the superposition result has an obvious peak interval; if yes, completing capturing the primary synchronization signal, and obtaining timing information according to a position of a maximum correlation peak; otherwise, returning to step 1.

    摘要翻译: 一种用于在LTE系统中降低初始频率偏移的影响并确保低信噪比间隔的定时同步的鲁棒下行链路定时同步方法,其包括:步骤1:接收终端连续存储时域信号序列 M PSS传输周期; 步骤2:对M PSS传输周期的时域信号序列进行窄带滤波; 步骤3:对过滤后获得的数据进行下采样; 步骤4:对第m PSS发送周期的下采样数据执行滑差分镜相关,以获得第i个时刻的相关值; 步骤5:叠加相关结果以获得叠加结果; 步骤6:确定叠加结果是否具有明显的峰值间隔; 如果是,则完成捕获主同步信号,并根据最大相关峰的位置获得定时信息; 否则返回步骤1。

    Switching power supply with over-current protection and electronic device using the same
    3.
    发明授权
    Switching power supply with over-current protection and electronic device using the same 失效
    具有过流保护功能的开关电源及使用其的电子设备

    公开(公告)号:US08416593B2

    公开(公告)日:2013-04-09

    申请号:US12331384

    申请日:2008-12-09

    IPC分类号: H02H7/122

    CPC分类号: H02M3/33507 H02M1/32 H02M1/36

    摘要: A switching power supply includes a rectifier circuit, a converter, a detecting unit, a control unit, a switching unit, and a protection unit. The rectifier circuit is used for rectifying an input voltage into a first direct current voltage. The converter is configured for generating a first current according to the first direct current voltage. The detecting unit is used for generating a detected voltage according to the first current. The control unit is configured for generating a control signal. The switching unit is used for enabling the converter, and conducting the first current to the detecting unit when receiving the control signal. The protection unit is configured for shunting the first current with the detecting unit when the first current becomes a large current surge. The control unit stops generating the control signal when determining that the detected voltage is equal to or higher than a predetermined value.

    摘要翻译: 开关电源包括整流电路,转换器,检测单元,控制单元,开关单元和保护单元。 整流电路用于将输入电压整流为第一直流电压。 转换器被配置为根据第一直流电压产生第一电流。 检测单元用于根据第一电流产生检测电压。 控制单元被配置为产生控制信号。 开关单元用于启用转换器,并且在接收到控制信号时将第一电流传送到检测单元。 保护单元被配置为当第一电流变为大电流浪涌时与检测单元分流第一电流。 当确定检测到的电压等于或高于预定值时,控制单元停止产生控制信号。

    Data Acquisition Card, Expansion Control System For Data Acquisition Card And Method Thereof
    4.
    发明申请
    Data Acquisition Card, Expansion Control System For Data Acquisition Card And Method Thereof 有权
    数据采集​​卡,数据采集卡扩展控制系统及其方法

    公开(公告)号:US20120137037A1

    公开(公告)日:2012-05-31

    申请号:US13389347

    申请日:2010-03-24

    申请人: Yong Xiong

    发明人: Yong Xiong

    IPC分类号: G06F13/00

    摘要: A data acquisition card, an extension control system of data acquisition cards and method thereof are disclosed. The method includes: presetting a card address for each data acquisition card, and presetting a channel address for each data channel in the data acquisition card; the data acquisition card generating a corresponding card address signal after receiving a card beat signal from a user circuit, and judging whether the data acquisition card is gated; and if the data acquisition card is gated, then generating a corresponding channel address signal after receiving a channel beat signal from the user circuit, and gating a data channel corresponding to the channel address signal. The data acquisition card, the extension control system of the data acquisition cards and method thereof have the strong extensibility and high stability.

    摘要翻译: 公开了数据采集卡,数据采集卡的扩展控制系统及其方法。 该方法包括:为每个数据采集卡预设卡地址,并为数据采集卡中的每个数据通道预设一个通道地址; 数据采集​​卡在从用户电路接收到卡差拍信号之后产生相应的卡地址信号,并且判断数据采集卡是否被门控; 并且如果数据采集卡被选通,则在从用户电路接收到信道节拍信号之后产生相应的频道地址信号,以及选通对应于频道地址信号的数据频道。 数据采集​​卡,数据采集卡的扩展控制系统及其方法具有很强的可扩展性和高稳定性。

    POWER SUPPLY PROTECTION DEVICE
    5.
    发明申请
    POWER SUPPLY PROTECTION DEVICE 失效
    电源保护装置

    公开(公告)号:US20090243870A1

    公开(公告)日:2009-10-01

    申请号:US12346871

    申请日:2008-12-31

    IPC分类号: G08B21/00

    CPC分类号: H02H3/20 H02H3/04

    摘要: A power supply protection device for an electric appliance includes a switching circuit for establishing an electrical connection to receive an external voltage from the external power supply and output the external voltage to the electric appliance, a detecting circuit for disabling the switch circuit to break the electrical connection when determining the external voltage is equal to or higher than a predetermined value, and an alert circuit for generating an alert signal when the electrical connection is broken and outputting the alert signal to a user.

    摘要翻译: 一种用于电器的电源保护装置,包括用于建立电连接以从外部电源接收外部电压并将外部电压输出到电器的切换电路,用于禁止开关电路使电气断开的检测电路 确定外部电压时的连接等于或高于预定值;以及警报电路,用于当电连接断开时产生警报信号,并将警报信号输出给用户。

    Data acquisition card, expansion control system for data acquisition card and method thereof
    6.
    发明授权
    Data acquisition card, expansion control system for data acquisition card and method thereof 有权
    数据采集​​卡,数据采集卡扩展控制系统及其方法

    公开(公告)号:US08762587B2

    公开(公告)日:2014-06-24

    申请号:US13389347

    申请日:2010-03-24

    申请人: Yong Xiong

    发明人: Yong Xiong

    IPC分类号: G06F13/00

    摘要: A data acquisition card, an expansion control system for a data acquisition card and a method thereof are disclosed. The method includes: a card address is preset for each data acquisition card, a channel address is preset for each data channel in the data acquisition card; the data acquisition card generates a corresponding card address signal after receiving a card beat signal from a user circuit, and judges whether the data acquisition card is selected; if the data acquisition card is selected, it generates a corresponding channel address signal after receiving a channel beat signal from the user circuit, and selects the data channel corresponding to the channel address signal. The data acquisition card, the expansion control system for the data acquisition card and the method thereof have powerful expansibility and high stability.

    摘要翻译: 公开了一种数据采集卡,数据采集卡的扩展控制系统及其方法。 该方法包括:为每个数据采集卡预设卡地址,为数据采集卡中的每个数据通道预设一个通道地址; 数据采集​​卡在从用户电路接收到卡搏动信号之后产生相应的卡地址信号,并判断数据采集卡是否被选择; 如果选择数据采集卡,则在从用户电路接收到信道差拍信号之后产生相应的通道地址信号,并选择与通道地址信号对应的数据通道。 数据采集​​卡,数据采集卡的扩展控制系统及其方法具有强大的可扩展性和高稳定性。

    ROBUST DOWNLINK TIMING SYNCHRONIZATION METHOD IN LTE SYSTEM
    7.
    发明申请
    ROBUST DOWNLINK TIMING SYNCHRONIZATION METHOD IN LTE SYSTEM 有权
    LTE系统中的稳健下行同步同步方法

    公开(公告)号:US20140036779A1

    公开(公告)日:2014-02-06

    申请号:US14006960

    申请日:2012-01-11

    IPC分类号: H04W56/00

    CPC分类号: H04W56/003 H04J11/0073

    摘要: Disclosed is a robust downlink timing synchronization method in an LTE system, which includes: step 1: a receiving terminal continuously storing time domain signal sequences of M PSS transmission periods; step 2: performing narrowband filtering on the time domain signal sequences of the M PSS transmission periods; step 3: performing down-sampling on data obtained after the filtering; step 4: performing sliding differential mirror correlation on the down-sampling data of an mth PSS transmission period to obtain a correlation value of an ith instant; step 5: superposing correlation results to obtain a superposition result; and step 6: determining whether the superposition result has an obvious peak interval; if yes, completing capturing the primary synchronization signal, and obtaining timing information according to a position of a maximum correlation peak; otherwise, returning to step 1. The present invention effectively reduces the influence of initial frequency offset and ensures the timing synchronization in a low signal-to-noise ratio interval. The present invention has fine utility under the receiving conditions where the initial frequency offset is not compensated and the channel transmission environment is unknown, and has good robustness.

    摘要翻译: 公开了LTE系统中的鲁棒下行链路定时同步方法,其包括:步骤1:接收终端连续存储M PSS传输周期的时域信号序列; 步骤2:对M PSS传输周期的时域信号序列进行窄带滤波; 步骤3:对过滤后获得的数据进行下采样; 步骤4:对第m PSS发送周期的下采样数据执行滑差分镜相关,以获得第i个时刻的相关值; 步骤5:叠加相关结果以获得叠加结果; 步骤6:确定叠加结果是否具有明显的峰值间隔; 如果是,则完成捕获主同步信号,并根据最大相关峰的位置获得定时信息; 本发明有效地降低了初始频率偏移的影响,并确保了低信噪比间隔的定时同步。 本发明在不补偿初始频率偏移和信道传输环境未知的接收条件下具有良好的实用性,并且具有良好的鲁棒性。

    Power supply protection device
    8.
    发明授权
    Power supply protection device 失效
    电源保护装置

    公开(公告)号:US08310371B2

    公开(公告)日:2012-11-13

    申请号:US12346871

    申请日:2008-12-31

    IPC分类号: G08B21/00

    CPC分类号: H02H3/20 H02H3/04

    摘要: A power supply protection device for an electric appliance includes a switching circuit for establishing an electrical connection to receive an external voltage from the external power supply and output the external voltage to the electric appliance, a detecting circuit for disabling the switch circuit to break the electrical connection when determining the external voltage is equal to or higher than a predetermined value, and an alert circuit for generating an alert signal when the electrical connection is broken and outputting the alert signal to a user.

    摘要翻译: 一种用于电器的电源保护装置,包括用于建立电连接以从外部电源接收外部电压并将外部电压输出到电器的切换电路,用于禁止开关电路使电气断开的检测电路 确定外部电压时的连接等于或高于预定值;以及警报电路,用于当电连接断开时产生警报信号,并将警报信号输出给用户。