Digitized analog TV signal processing system
    1.
    发明公开
    Digitized analog TV signal processing system 审中-公开
    Digitalisiertes Analogfernsehen-Signalverarbeitungssystem

    公开(公告)号:EP2490435A2

    公开(公告)日:2012-08-22

    申请号:EP12168176.1

    申请日:2008-05-13

    申请人: MediaTek, Inc

    摘要: A digitized analog television signal processing system (200) is disclosed, comprising an analog-to-digital converter (202), a demodulation unit (203), a decoding unit (222), and a control unit (216). The analog-to-digital converter (202) samples a television signal comprising a video signal. The demodulation unit (203) demodulates the video signal. The decoding unit (222) decodes the demodulated video signal. The control unit (216) adjusts the demodulation unit (203) according to a signal quality indicator generated during and/or after the decoding of the decoding unit (222). The demodulation unit further comprises a carrier recovery unit configured to lock a video carrier of the video signal at an intermediate frequency, and the control unit can make a loop bandwidth of the carrier recovery unit controlled according to the signal quality indicator.

    摘要翻译: 公开了一种数字化的模拟电视信号处理系统(200),包括模数转换器(202),解调单元(203),解码单元(222)和控制单元(216)。 模数转换器(202)对包括视频信号的电视信号进行采样。 解调单元(203)解调视频信号。 解码单元(222)对解调的视频信号进行解码。 控制单元(216)根据在解码单元(222)的解码期间和/或之后产生的信号质量指示符来调整解调单元(203)。 解调单元还包括:载波恢复单元,被配置为以中频锁定视频信号的视频载波,并且控制单元可以根据信号质量指示符来使得载波恢复单元的环路带宽被控制。

    Digitized analog TV signal processing system
    2.
    发明公开
    Digitized analog TV signal processing system 审中-公开
    Digitalisiertes Analogfernsehen-Signalverarbeitungssystem

    公开(公告)号:EP2117224A2

    公开(公告)日:2009-11-11

    申请号:EP08103934.9

    申请日:2008-05-13

    申请人: MediaTek, Inc

    摘要: A digitized analog television signal processing system (200) is disclosed, comprising an analog-to-digital converter (202), a demodulation unit (203), a decoding unit (222), and a control unit (216). The analog-to-digital converter (202) samples a television signal comprising a video signal. The demodulation unit (203) demodulates the video signal. The decoding unit (222) decodes the demodulated video signal. The control unit (216) adjusts the demodulation unit (203) according to a signal quality indicator generated during and/or after the decoding of the decoding unit (222).

    摘要翻译: 公开了一种数字化的模拟电视信号处理系统(200),包括模数转换器(202),解调单元(203),解码单元(222)和控制单元(216)。 模数转换器(202)对包括视频信号的电视信号进行采样。 解调单元(203)解调视频信号。 解码单元(222)对解调的视频信号进行解码。 控制单元(216)根据在解码单元(222)的解码期间和/或之后产生的信号质量指示符来调整解调单元(203)。