Synchronizing signal extraction circuit for tdd system and method of the signal extraction
    34.
    发明申请
    Synchronizing signal extraction circuit for tdd system and method of the signal extraction 审中-公开
    用于tdd系统的同步信号提取电路和信号提取方法

    公开(公告)号:US20100061280A1

    公开(公告)日:2010-03-11

    申请号:US12310823

    申请日:2007-12-12

    Applicant: Chang Ho Lee

    Inventor: Chang Ho Lee

    CPC classification number: H04L7/027 H04L7/0087 H04L7/0331 H04L7/04

    Abstract: The present invention relates to a technology applied to mobile communication, and more particularly to a circuit of extracting a synchronizing signal from a received signal for retransmitting the received signal in synchronization with the synchronizing signal in a repeater of a TDD system, etc. The circuit generates the synchronizing signal in a phase locked to a phase of the received signal and outputs the synchronizing signal through a signal extractor. A synchronizing signal extraction circuit according to example embodiments of the present invention includes a band pass filter 10 for passing a signal having a desired frequency, a signal detector 20 for detecting a synchronizing signal from an output of the band pass filter 10, a digital filter 30 for filtering an output of the signal detector to remove a noise, a digitally-programmed phase-locked loop (DPPLL) 40 for restoring the synchronizing signal from an output of the digital filter to lock a phase of an output of an oscillator, the oscillator 50 for generating an electrical oscillation of clock or pulse type, and a signal extractor 60 for outputting the synchronizing signal using the output of the oscillator. The present invention has wide applicability since the synchronizing signal is extracted from a signal of TDD type, has a relatively simple configuration and high performance since the DPPLL is used, can be manufactured compactly at relatively low cost since the small number of components are included, and may reduce problems such as heat generation due to lowered power consumption according to reduction of the number of components.

    Abstract translation: 本发明涉及应用于移动通信的技术,更具体地说,涉及一种从TDD系统的中继器同步的同步信号中提取来自接收信号的同步信号以重发接收信号的电路等。电路 产生锁相到接收信号的相位的同步信号,并通过信号提取器输出同步信号。 根据本发明的示例性实施例的同步信号提取电路包括用于通过具有期望频率的信号的带通滤波器10,用于检测来自带通滤波器10的输出的同步信号的信号检测器20,数字滤波器 30,用于对信号检测器的输出进行滤波以去除噪声;数字编程锁相环(DPPLL)40,用于从数字滤波器的输出恢复同步信号,以锁定振荡器的输出的相位; 用于产生时钟或脉冲类型的电振荡的振荡器50以及用于使用振荡器的输出输出同步信号的信号提取器60。 本发明具有广泛的适用性,因为从TDD型的信号中提取同步信号,由于使用DPPLL,所以具有相对简单的结构和高性能,可以以相对较低的成本紧凑地制造,因为包括少量的部件, 并且可以减少由于部件数量的减少而导致的功率消耗降低的诸如发热的问题。

    FLUORENE-CONTAINING COMPOUND AND ORGANIC LIGHT EMITTING DEVICE EMPLOYING THE SAME
    36.
    发明申请
    FLUORENE-CONTAINING COMPOUND AND ORGANIC LIGHT EMITTING DEVICE EMPLOYING THE SAME 有权
    含有荧光的化合物和使用其的有机发光装置

    公开(公告)号:US20100051924A1

    公开(公告)日:2010-03-04

    申请号:US12546824

    申请日:2009-08-25

    CPC classification number: C07C211/54 C09B57/008

    Abstract: A novel fluorene-containing compound and an organic electroluminescent device including an organic layer employing the same. The fluorene-containing compound has excellent electrical characteristics and an excellent charge transporting capability, and so can be used as a hole injecting material, hole transporting material, and/or emitting material that is suitable for all-color fluorescent and phosphorescent devices, such as red, green, blue, and white fluorescent and phosphorescent devices. Accordingly, an organic electroluminescent device employing the fluorene-containing compound has high efficiency, a low driving voltage, high brightness, and a long lifetime.

    Abstract translation: 含有新颖芴的化合物和包括使用其的有机层的有机电致发光器件。 含芴化合物具有优异的电特性和优异的电荷输送能力,因此可用作适用于全色荧光和磷光装置的空穴注入材料,空穴传输材料和/或发射材料,例如 红色,绿色,蓝色和白色荧光和磷光装置。 因此,使用含芴化合物的有机电致发光元件的效率高,驱动电压低,亮度高,寿命长。

    LC quadrature oscillator having phase and amplitude mismatch compensator
    37.
    发明授权
    LC quadrature oscillator having phase and amplitude mismatch compensator 失效
    具有相位和幅度失配补偿器的LC正交振荡器

    公开(公告)号:US07595700B2

    公开(公告)日:2009-09-29

    申请号:US11859523

    申请日:2007-09-21

    Abstract: Embodiments of the invention may provide for an LC quadrature oscillator that includes two LC oscillators that are cross-coupled with each other to generate I/Q clock signals and a phase and amplitude mismatch compensator. The phase and amplitude mismatch detector may include an amplitude mismatch detector, a transconductor, and a capacitor for compensating for both phase and amplitude mismatches between I/Q clock signals generated in the LC quadrature oscillator.

    Abstract translation: 本发明的实施例可以提供一种LC正交振荡器,其包括彼此交叉耦合以产生I / Q时钟信​​号的两个LC振荡器以及相位和幅度失配补偿器。 相位和幅度失配检测器可以包括幅度失配检测器,跨导体和用于补偿在LC正交振荡器中产生的I / Q时钟信​​号之间的相位和幅度失配的电容器。

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