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    • 2. 发明公开
    • HPF의 통과대역을 조정할 수 있는 방법 및 장치
    • 用于控制HPF穿通带的方法和装置
    • KR1020030093815A
    • 2003-12-11
    • KR1020020031676
    • 2002-06-05
    • 삼성전자주식회사
    • 임준혁
    • H03H7/01
    • H04B3/145H03H7/0153H03H7/075H03H7/1758H03H7/425H03H2210/012H03H2210/015H03H2210/028H03H2210/036H04L27/0002H04L27/2647H04M11/062
    • PURPOSE: A method and an apparatus for controlling a passing band of HPF(High Pass Filter) are provided to optimize a receiving rate of data by changing a resistant value according to the intensity of signals. CONSTITUTION: A method for controlling a passing band of HPF includes a signal receiving process, a signal comparison process, a control signal outputting process, and a resistant value control process. The signal receiving process is to receive the first signal. The comparison process is to compare the first signal level with the predetermined signal level. The control signal outputting process is to output a control signal according to a result of the comparison process. The resistant value control process is to control a resistant value in response to the control signal. A passing band of the HPF(50) or an interrupting frequency is decided by the resistant value.
    • 目的:提供一种用于控制HPF(高通滤波器)通带的方法和装置,以通过根据信号强度改变电阻值来优化数据的接收速率。 构成:用于控制HPF的通带的方法包括信号接收处理,信号比较处理,控制信号输出处理和电阻值控制处理。 信号接收处理是接收第一信号。 比较处理是将第一信号电平与预定信号电平进行比较。 控制信号输出处理是根据比较处理的结果来输出控制信号。 电阻值控制处理是根据控制信号来控制电阻值。 HPF(50)的通过频带或中断频率由电阻值决定。
    • 5. 发明授权
    • 동조회로
    • KR100396629B1
    • 2003-12-01
    • KR1019970704378
    • 1996-01-11
    • 이케다 타케시
    • 이케다타케시오헤타다타카나카니시츄토무
    • H03H11/12
    • H03H11/1217H03H11/1291H03H11/20H03H11/481H03H11/483H03H11/485H03H2210/012H03H2210/015H03H2210/026H03H2210/028
    • A tuning circuit which has a wide tuning bandwidth. The tuning bandwidth of the tuning frequency can be easily changed. The tuning circuit (1) is composed of two cascade-connected tuning amplifier sections (2 and 3). Each of the sections (2 and 3) is provided with cascade-connected phase-shifting circuits (10C and 30C), a voltage dividing circuit (60), and an adding circuit composed of a feedback resistor (70) and an input resistor (74). Prescribed tuning operation is performed by shifting the phase of a prescribed frequency by 360 DEG by means of the phase shifting circuits (10C and 30C) and setting the open loop gain of a feedback loop at less than (1) when the output of the voltage dividing circuit (60) is feedback. The resistance ratio between the feedback resistor (70) and input resistor (74) of each tuning amplifier section is adjusted in order that the maximum damping of each tuning amplifier section becomes smaller and the tuning bandwidth of each amplifier section becomes wider. Therefore, since the tuning amplifier sections are cascade-connected, the maximum damping is increased and the tuning bandwidth is widened as a whole.
    • 具有宽调谐带宽的调谐电路。 调谐频率的调谐带宽可以很容易地改变。 调谐电路(1)由两个级联连接的调谐放大器部分(2和3)组成。 每个部分(2和3)设置有级联连接的相移电路(10C和30C),分压电路(60)以及由反馈电阻器(70)和输入电阻器(70)组成的加法电路 74)。 规定的调谐操作是通过利用移相电路(10C和30C)将规定频率的相位移动360°并将反馈回路的开环增益设置为小于(1)当电压输出 除法电路(60)被反馈。 调节每个调谐放大器部分的反馈电阻器(70)和输入电阻器(74)之间的电阻比,以便每个调谐放大器部分的最大阻尼变得更小并且每个放大器部分的调谐带宽变得更宽。 因此,由于调谐放大器部分是级联连接的,因此最大阻尼增大,调谐带宽整体变宽。 <图像>