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    • 7. 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。
    • 8. 发明授权
    • Digital receiver
    • 数字接收机
    • US08509353B2
    • 2013-08-13
    • US12818510
    • 2010-06-18
    • Seon-Ho HanHyun Kyu Yu
    • Seon-Ho HanHyun Kyu Yu
    • H03K9/00
    • H04B1/0025H04B1/001
    • In a digital receiver, a noise attenuation and signal magnitude mapping variable amplifying unit includes a filter and an amplifier, amplifies and band-bass filters an analog signal and attenuating white noise and an interference signal other than a band signal. An ADC performs subsampling on a carrier frequency of a desired signal and performs oversampling on the band of the desired signal by using a sampling frequency to convert the analog signal which has passed through the noise attenuation and signal magnitude mapping variable amplifying unit into a digital signal of a direct conversion frequency band or an intermediate frequency band. The ADC has a dynamic range for processing both the desired signal and an undesired signal adjacent to the desired signal. A digital signal processing unit converts a signal frequency of the digital signal or digital-filters an undesired signal within the digital signal and processes the digital signal by digitally adjusting a gain.
    • 在数字接收机中,噪声衰减和信号幅度映射可变放大单元包括滤波器和放大器,对模拟信号进行放大和频带滤波,并衰减白噪声和除频带信号之外的干扰信号。 ADC在期望信号的载波频率上执行子采样,并通过使用采样频率对已经通过噪声衰减和信号幅度映射可变放大单元的模拟信号进行数字信号的期望信号的频带上的过采样, 的直接转换频带或中频带。 ADC具有用于处理期望信号和与期望信号相邻的不期望信号的动态范围。 数字信号处理单元转换数字信号的信号频率或数字滤波数字信号内的不需要的信号,并通过数字调节增益来处理数字信号。