룩업 테이블을 이용한 튜너 모듈
    51.
    发明公开
    룩업 테이블을 이용한 튜너 모듈 审中-实审
    调谐器模块使用LOOKUP表

    公开(公告)号:KR1020130073754A

    公开(公告)日:2013-07-03

    申请号:KR1020110141769

    申请日:2011-12-23

    Inventor: 김현규

    CPC classification number: H04N5/50 H03G2201/508 H04B17/318 H04N5/52

    Abstract: PURPOSE: A tuner module using a look up table is provided to calculate an optimal received signal strength indication (RSSI) value by comparing a measured auto gain control (AGC) value with a lookup table, thereby producing a precise RSSI value. CONSTITUTION: An auto gain control (AGC) detection unit (221) detects a signal which is provided by a radio frequency (RF) amplifier circuit (210), and converts the detected signal into an AGC signal according to the level of the detected signal. A received signal strength indication (RSSI) threshold generating unit (223) compares the detected AGC value which is detected by the AGC detection unit with a lookup table (LUT), and produces an optimal table value. An analog to digital converter (ADC) (222) converts an output RSSI value which is output from the RSSI threshold generating unit into a digital signal. [Reference numerals] (202) Input tuning circuit; (204) RF tuning circuit; (210) RF amplification circuit; (223) RSSI threshold generating unit; (225) IF tuning circuit; (240) Analog/digital demodulating unit

    Abstract translation: 目的:提供使用查找表的调谐器模块,通过将测量的自动增益控制(AGC)值与查找表进行比较来计算最佳接收信号强度指示(RSSI)值,从而产生精确的RSSI值。 构成:自动增益控制(AGC)检测单元(221)检测由射频(RF)放大器电路(210)提供的信号,并根据检测信号的电平将检测信号转换成AGC信号 。 接收信号强度指示(RSSI)阈值生成单元(223)将由AGC检测单元检测出的检测到的AGC值与查找表(LUT)进行比较,并生成最优表格值。 模数转换器(222)将从RSSI阈值产生单元输出的输出RSSI值转换为数字信号。 (参考号)(202)输入调谐电路; (204)RF调谐电路; (210)射频放大电路; (223)RSSI阈值生成单元; (225)IF调谐电路; (240)模拟/数字解调单元

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