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    • 2. 发明申请
    • Wireless transceiving apparatus for variability of signal processing band
    • 用于信号处理频带变化的无线收发装置
    • US20060135086A1
    • 2006-06-22
    • US11224811
    • 2005-09-12
    • Seon-Ho HanMun-Yang ParkHyun-Kyu YuCheon-Soo Kim
    • Seon-Ho HanMun-Yang ParkHyun-Kyu YuCheon-Soo Kim
    • H04B1/46
    • H04B1/405
    • Provided is a wireless transceiving apparatus for variability of signal processing band, in which at least one resonator of an analog processor and a VCO are simultaneously controlled using a frequency synthesizer, and a frequency of the VCO and a resonance frequency of the analog processor are controlled to have a rational number ratio, thereby capable of varying the signal processing band. The wireless transceiving apparatus includes: an analog processor having a plurality of resonators on a path of transmission/reception signals, for performing analog signal processing; a digital processor for performing digital signal processing on an output signal of the analog processor or data to be transmitted to the analog processor; and a frequency synthesizer for providing a local oscillation (LO) frequency and a controlling signal to the resonators of the analog processor so as to vary a signal processing band of the analog processor.
    • 提供了一种用于信号处理频带的可变性的无线收发装置,其中使用频率合成器同时控制模拟处理器和VCO的至少一个谐振器,并且控制VCO的频率和模拟处理器的谐振频率 具有有理数比,从而能够改变信号处理频带。 无线收发装置包括:模拟处理器,在发送/接收信号的路径上具有多个谐振器,用于执行模拟信号处理; 用于对模拟处理器的输出信号执行数字信号处理的数字处理器或将被发送到模拟处理器的数据; 以及用于向模拟处理器的谐振器提供本地振荡(LO)频率和控制信号以便改变模拟处理器的信号处理频带的频率合成器。
    • 3. 发明授权
    • Wireless transceiving apparatus for variability of signal processing band
    • 用于信号处理频带变化的无线收发装置
    • US07773953B2
    • 2010-08-10
    • US11224811
    • 2005-09-12
    • Seon-Ho HanMun-Yang ParkHyun-Kyu YuCheon-Soo Kim
    • Seon-Ho HanMun-Yang ParkHyun-Kyu YuCheon-Soo Kim
    • H04B1/40
    • H04B1/405
    • Provided is a wireless transceiving apparatus for variability of signal processing band, in which at least one resonator of an analog processor and a VCO are simultaneously controlled using a frequency synthesizer, and a frequency of the VCO and a resonance frequency of the analog processor are controlled to have a rational number ratio, thereby capable of varying the signal processing band. The wireless transceiving apparatus includes: an analog processor having a plurality of resonators on a path of transmission/reception signals, for performing analog signal processing; a digital processor for performing digital signal processing on an output signal of the analog processor or data to be transmitted to the analog processor; and a frequency synthesizer for providing a local oscillation (LO) frequency and a controlling signal to the resonators of the analog processor so as to vary a signal processing band of the analog processor.
    • 提供了一种用于信号处理频带的可变性的无线收发装置,其中使用频率合成器同时控制模拟处理器和VCO的至少一个谐振器,并且控制VCO的频率和模拟处理器的谐振频率 具有有理数比,由此能够改变信号处理频带。 无线收发装置包括:模拟处理器,在发送/接收信号的路径上具有多个谐振器,用于执行模拟信号处理; 用于对模拟处理器的输出信号执行数字信号处理的数字处理器或将被发送到模拟处理器的数据; 以及用于向模拟处理器的谐振器提供本地振荡(LO)频率和控制信号以便改变模拟处理器的信号处理频带的频率合成器。
    • 9. 发明授权
    • Amplifier and method for canceling nonlinearity in amplifier
    • 用于消除放大器非线性的放大器和方法
    • US06940350B2
    • 2005-09-06
    • US10618507
    • 2003-07-11
    • Yong-Sik YounHyun-Kyu YuMun-Yang Park
    • Yong-Sik YounHyun-Kyu YuMun-Yang Park
    • H03F1/30H03F1/32H03F3/04H03F3/345H03F1/22
    • H03F3/345H03F1/301H03F1/3205H03F3/04
    • An amplifier including an amplifier transistor that operates in an active region has main current flowing therethrough according to input voltage, and a linear transistor that is driven by offset positive-polarity input voltage to operate in a linear region and has auxiliary current flowing therethrough. The main current and auxiliary current are added to become output current. The offset positive-polarity voltage corresponds to the sum of AC component of the input voltage and an offset DC voltage. Here, a transistor stacked on the linear transistor is coupled to the amplifier transistor to secure the linear region operation of the linear transistor. The stacked transistor is driven by a voltage having polarity opposite to that of the input voltage.
    • 包括在有源区域中工作的放大器晶体管的放大器根据输入电压具有流过其中的主电流,以及由偏移正极性输入电压驱动以在线性区域中操作并具有辅助电流流过其中的线性晶体管。 主电流和辅助电流相加,成为输出电流。 偏移正极性电压对应于输入电压的交流分量和偏移直流电压之和。 这里,堆叠在线性晶体管上的晶体管耦合到放大器晶体管,以确保线性晶体管的线性区域操作。 堆叠晶体管由具有与输入电压的极性相反的极性的电压驱动。
    • 10. 发明授权
    • Quadrature modulation transmitter
    • 正交调制发射机
    • US07212585B2
    • 2007-05-01
    • US10734574
    • 2003-12-12
    • Min-Hyung ChoSeung-Chul LeeMun-Yang Park
    • Min-Hyung ChoSeung-Chul LeeMun-Yang Park
    • H04L27/04H04L27/20H04B17/00
    • H04L27/365H03C3/40
    • There is provided a quadrature modulation transmitter which is capable of solving several problems of the conventional transmitter while performing the same function as the heterodyne transmitter or the digital IF transmitter, in which a circuit structure is simplified and a power consumption is reduced compared with the conventional transmitter. The quadrature modulation transmitter includes: a digital processing block for receiving an I-channel data, a Q-channel data and a clock signal, modulating the I-channel data or an inverted I-channel data into a first analog signal by means of an I-channel DAC according to a switching of an I-clock signal identical to the clock signal, and modulating the Q-channel data and an inverted Q-channel data into a second analog signal by means of a Q-channel DAC according to a switching of a Q-clock signal, the Q-clock signal being an inverted clock signal; and an analog processing block for receiving the first and second analog signals from the digital processing block, adding the first and second analog signals, converting the added signal into an RF domain signal through a mixing operation, and amplifying and transmitting the RF domain signal.
    • 提供了一种正交调制发射机,其能够解决传统发射机的几个问题,同时执行与外差发射机或数字IF发射机相同的功能,其中电路结构被简化并且功耗相比于常规发射机 发射机。 正交调制发射机包括:数字处理块,用于接收I信道数据,Q信道数据和时钟信号,通过以下方式将I信道数据或反相I信道数据调制成第一模拟信号 I沟道DAC根据与时钟信号相同的I时钟信号的切换,并且通过根据下述的Q信道DAC将Q通道数据和反相Q通道数据调制成第二模拟信号 Q时钟信号的切换,Q时钟信号是反相时钟信号; 以及模拟处理块,用于从数字处理块接收第一和第二模拟信号,添加第一和第二模拟信号,通过混合操作将相加的信号转换成RF域信号,以及放大和发射RF域信号。