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    • 4. 发明授权
    • Active polyphase filter
    • 活性多相过滤器
    • US07271647B2
    • 2007-09-18
    • US11209914
    • 2005-08-22
    • Kanyu Mark CaoYiping FanHongyu LiChieh-Yuan Chao
    • Kanyu Mark CaoYiping FanHongyu LiChieh-Yuan Chao
    • H03K5/00H04B1/10
    • H03H11/22H03H2007/0192H03H2011/0494
    • The present invention provides methods and apparatuses for a polyphase filter, comprising: a first and second cascoded differential amplifiers configured to receive a first and second differential signals, the first cascoded differential amplifier having a first resistor coupled between current legs of the first cascoded differential amplifier and the second cascoded differential amplifier having a first capacitor coupled between current legs of the second cascoded differential amplifier; and a third and fourth cascoded differential amplifiers configured to receive said first and said second differential signals, the third cascoded differential amplifier having a second resistor coupled between current legs of the third cascoded differential amplifier and the fourth cascoded differential amplifier having a second capacitor coupled between current legs of the fourth cascoded differential amplifier; wherein the first and second cascoded differential amplifiers are configured to provide a first differential output in response to the first and second differential signals and the third and fourth cascoded differential amplifiers are configured to provide a second differential output in response to the first and second differential signals.
    • 本发明提供了一种多相滤波器的方法和装置,包括:配置成接收第一和第二差分信号的第一和第二级联差分放大器,第一级联差分放大器具有耦合在第一级联差分放大器的电流端之间的第一电阻器 并且所述第二级联差分放大器具有耦合在所述第二级联差分放大器的电流支路之间的第一电容器; 以及第三和第四级联差分放大器,被配置为接收所述第一和所述第二差分信号,所述第三级联差分放大器具有耦合在所述第三级联差分放大器的电流支路之间的第二电阻器和所述第四级联型差分放大器, 第四级差分放大器的电流端; 其中所述第一和第二级联差分放大器被配置为响应于所述第一和第二差分信号而提供第一差分输出,并且所述第三和第四级联差分放大器被配置为响应于所述第一和第二差分信号而提供第二差分输出 。
    • 5. 发明申请
    • Receiver based method for de-spreading of spread spectrum signal
    • 基于接收机的扩频信号解扩方法
    • US20050105596A1
    • 2005-05-19
    • US10712643
    • 2003-11-13
    • Yiping FanSyang-Myau HwangHongyu LiChieh-Yuan Chao
    • Yiping FanSyang-Myau HwangHongyu LiChieh-Yuan Chao
    • H04B1/69H04B1/707H04J11/00H04L25/06H04L27/14
    • H04B1/7097H04B1/709H04J13/00H04L25/061H04L27/142
    • A spread spectrum receiver whose de-spreading process based on transformed spreading codes is provided. Instead of de-spreading with original spreading codes, this approach de-spreads received signal with the spreading codes transformed from the original codes in order to eliminate the negative impact of system impairments such as frequency offset to a spread spectrum receiver. Before de-spreading with the transformed code, the received signal goes through the same transformation as the original codes do. After a transformation, the transformed codes may exist some undesirable property such as spreading code having DC content. An approach is given to cancel unwanted side effects relating the transformed spreading codes. The approaches are very effective for spread spectrum system based on frequency modulation scheme such as MSK. For this kind of system, the frequency offset translates to DC offset after the transformation and the DC offset can be cancel since the DC property of the transformed spreading code is known in advance.
    • 一种扩展频谱接收机,其基于变换的扩频码进行解扩处理。 代替使用原始扩展码去扩展,该方法使用从原始码转换的扩展码对接收信号进行解扩,以消除诸如频率偏移对扩频接收机的系统损伤的负面影响。 在使用变换后的代码进行解扩后,接收到的信号经过与原始代码相同的转换。 在变换之后,变换的代码可能存在一些不期望的属性,例如具有DC内容的扩展码。 给出了一种解决与转换的扩展码有关的不必要的副作用的方法。 这种方法对于基于MSK等频率调制方案的扩频系统非常有效。 对于这种系统,频率偏移转换为变换后的DC偏移,并且可以取消DC偏移,因为转换的扩展码的DC属性预先已知。
    • 9. 发明申请
    • DOSER HAVING TWO NEEDLES
    • 具有两个针的药剂
    • US20150157536A1
    • 2015-06-11
    • US14415604
    • 2012-08-02
    • Yu QiuKe LiYuan YuanHongyu Li
    • Yu QiuKe LiYuan YuanHongyu Li
    • A61J1/20A61J1/14
    • A61J1/2089A61J1/10A61J1/1406A61J1/1475A61J1/201A61J1/2013A61J1/2055
    • A doser having two needles. The two needles consist of a needle seat (1), an upper needle (2), and a lower needle (3). The upper needle (2) and the lower needle (3) are arranged at two sides of the needle seat (1), and the upper needle (2) and the lower needle (3) both have a hollow structure and are in communication with each other. A medicine mixing body (4) of a cup structure is formed through extension in the direction along the edge of the needle seat (1) toward the upper needle (2). When the doser having two needle is used, it is only required that the upper needle (1) penetrates through a sealing plug of a medicine container and the lower needle (3) simultaneously penetrates through a sealing plug inside a sealing cover on a transfusion container, and by squeezing the transfusion container, medicine in the medicine container can be mixed with a solution in the transfusion container, which makes the medicine mixing operation simpler and more time saving.
    • 具有两个针头的加药器 两针由针座(1),上针(2)和下针(3)组成。 上针(2)和下针(3)布置在针座(1)的两侧,上针(2)和下针(3)都具有中空结构,并与 彼此。 通过沿着针座(1)的边缘方向朝向上针(2)延伸形成杯结构的药物混合体(4)。 当使用具有两个针的加料器时,仅需要上针(1)穿过药物容器的密封塞,并且下针(3)同时穿过输液容器的密封盖内的密封塞 ,通过挤压输液容器,可以将药剂容器中的药物与输液容器中的溶液混合,使得药物混合操作更简单,更节省时间。