同步信号限幅装置与同步信号限幅方法制造方法及图纸

本发明专利技术的实施例提供一种同步信号限幅装置与同步信号限幅方法，其中同步信号限幅装置包含有滤波模块、限幅电平侦测器以及比较器。该滤波模块处理视频输入以产生滤波输出，且包含有第一滤波电路，用以接收该视频输入，并对该视频输入进行无限脉冲响应滤波处理。该限幅电平侦测器耦接于该滤波模块，用以接收该滤波输出，并依据该滤波输出来决定出对应同步信号成分的限幅电平。该比较器耦接于该第一滤波器与该滤波模块，用以接收该滤波输出与该限幅电平，并比较该限幅电平与该滤波输出以产生同步信号限幅输出。

Synchronous signal limiting device and synchronous signal limiting method

The embodiment of the invention provides a synchronous signal limiting device and a synchronous signal limiting method, wherein, the synchronous signal limiting device comprises a filtering module, a limiting level detector and a comparator. The filter module processes the video input to generate a filtered output, and includes a first filter circuit for receiving the video input and an unlimited impulse response filtering process for the video input. The amplitude limiting level detector is coupled to the filtering module to receive the filtered output, and the amplitude limiting level of the corresponding synchronous signal component is determined according to the filtered output. The comparator is coupled to the first filter and the filter module to receive the filtered output and the limiting amplitude, and compare the limiter level and the filtered output to produce a synchronous signal limiting output.

【技术实现步骤摘要】

【技术保护点】
１．一种同步信号限幅装置，其特征在于，包含有：滤波模块，用来处理视频输入以产生滤波输出，该滤波模块包含有：第一滤波电路，其接收该视频输入，并对该视频输入进行无限脉冲响应滤波处理；限幅电平侦测器，耦接于该滤波模块，用以接收该滤波输出，并依据该滤波输出来决定出对应同步信号成分的限幅电平；以及比较器，耦接于该限幅电平侦测器与该滤波模块，用以接收该滤波输出与该限幅电平，并比较该限幅电平与该滤波输出以产生同步信号限幅输出。

【技术特征摘要】

【专利技术属性】
技术研发人员：林敏裕，叶国炜，杨雅容，
申请(专利权)人：联发科技股份有限公司，
类型：发明
国别省市：71[中国|台湾]