Envelope level of sync peak for modulated vision signal

水平 同步调节电位器已调图像 信号 同步顶包络电平

The paper introduces a new method for making sync signal source in intelligent instrumentation . The microcontroller 8031 is used and table look-up technique with EPROM is taken featuring with easy implementation programmable frequency and high sync precision .

本文介绍一种在智能测试仪器中产生 同步测试 信号源的新方法，它使用一个8031单片机并运用了EPROM查表技术，具有实现简单、信号频率可程控、同步精度高等特点。

Optimum Synthetic Design Method for TV Sync Signal

电视 同步 信号的优化综合

Using CPLD to design video sync signal generator

利用CPLD设计视频 同步 信号发生器

Accepted picture output two streams from one of which the composite sync outputs needed by chip for video characters overlapping is separated in the video sync separator . The other is input of the video amplifying circuit to drive the signal .

接收到的图像信号分两路，一路进入 同步 信号分离器，分离出字符叠加芯片所需的复合同步信号，另一路进入视频放大电路，对 信号进行驱动。

Looking for the sync PULSE has always been one of the trickiest of tasks for the DISPLAY signal PROCESSor .

对于显示 信号处理器来说，寻找 同步脉冲一直都是一项十分重要的工作。

According to the adaptive control principle output parameters of oven controlled crystal oscillator and the pulses per second ( PPS ) signals of GPS are identified and processed by using the CPLD and single-chip microcomputer . Therefore a high-precision sync clock signal with settable frequency is formed .

以“CPLD+单片机”作为控制器件，依据自适应控制的原理对恒温晶振的时钟信号和GPS的秒脉冲（pulsespersecond，PPS）进行参数辨识和自适应处理，获得了频率可设定的高精度 同步时钟 信号。

Digital Processing of the TV Sync and Sound Signal

电视 同步与伴音 信号的数字处理

Tri-level sync eliminates the DC component and provides a more robust way to identify the coming of synchronization in the signal chain .

三电平 同步 方式消除了直流分量，提供了更有效的办法来确定同步信号在 信号链的位置。

It can separate sync signals from NTSC PAL and SECAM video signals and produces composite sync output signal back porch output signal horizontal sync signal vertical sync signal and odd / even field output signal .

它可以对NTSC、PAL、SECAM制式的视频信号进行同步分离，获得所需的同步信号，还能准确地输出复合同步、后沿输出、行 同步、场同步和奇/偶场输出 信号。

Then Bei-dou receiver GPS receiver and external IRIG-B code use as the external sync signal hot spare of each other .

接着，本文利用北斗接收机、GPS接收机和外部IRIG-B码作为系统的外 同步 信号，互为热备用。

FPGA is divided into 6 function modules and it completed clock generation pixel counter field signal generation line counter and group sync / blank control signal generation active test pictures generation respectively .

FPGA内部划分为六个功能模块，分别完成时钟产生、像素计数、场信号产生、行计数与分类、 同步/消隐控制 信号产生、有效测试图案产生。

To design the control system of LCD a method based on CPLD is described including the means of designing the horizontal sync signal and the vertical sync signal with VHDL .

介绍了基于CPLD液晶显示屏控制系统的设计方法，并详细介绍了用 VHDL硬件描述语言设计行，场液晶显示时序与控制的方法。

The main work is as follows : ( 1 ) The design of sync signal generator .

主要研究工作如下：（1） 同步 信号发生器硬件设计与制作。

At last the software and hardware of the system are discussed in detail especially the design of modules of sync signal abstracting and color process .

本文首先介绍了电视原理相关内容，然后详细阐述了系统的总体设计以及软硬件实现的具体方案，尤其是 同步提取和色度处理模块的设计和实现。

Novel frame SYNC signal detection method for multi-level optical discs

一种多阶光盘帧 同步 信号 的 数字检测方法

Using the SYNC WiFi system a signal will be broadcast throughout the vehicle .

使用 SYNCWiFi系统，无线 信号可在车内传播。

Software is used to detect sync signal and distinguish voltage phase sequence which can simplify periphery hardware .

用软件实现 同步 信号的检测与主回路电压相序判别，使外围硬件结构更简单；

Its main tasks include sync signal abstracting 、 Y / C separation 、 color subcarrier recovery 、 color demodulation and output format conversion .

其主要任务为： 电视 同步 信号提取、亮色分离、色度副载波恢复及色度解调、输出格式转换等。

Based on the Electrical Synthetic Design Method for TV sync signal 1 w_1033 the result which coincides with both computer simulation and practical experiment is given by means of optimum design and computer simplified method of multi-variable output of combined logic function .

本文根据文献1w_1068给出的设计，对电视 同步 信号的电子综合法，采用优化设计及组合逻辑函数多变量输出的计算机化简方法，取得了与计算机模拟验证和电路实验验证完全一致的结果。

The operational principle and hardware of the analyzer are described with the emphasis being put on the sync signal processing and peak value acquisition .

本文介绍其工作原理和硬件结构，着重分析了 同步 信号和峰值采样的方法。