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四、数字时基校正(DTBC)系统数字时基校正器采用全新的数字方式校正时基误差,它比传统的模拟方式具有大得多的校正窗口(从1H到16H、32 H、甚至无限大的帧同步机),并且能完成模拟方式不能实现的许多功能。它是数字技术进入广播电视领域的先导产品,现在已成为电视台,电教中心、以及一切需要制作和播出电视节目的单位和部门不可缺少的数字设备之一。下面就DTBC的基本原理和主要组成部分以及几种典型VTR(四磁头、1英寸C格
Fourth, the digital time base correction (DTBC) system digital time base corrector uses a new digital way to correct the time base error, it has much larger than the traditional analog simulation window (from 1H to 16H, 32H, or even infinite Frame synchronization machine), and to complete the simulation can not be achieved many of the features. It is a leading product of digital technology in the field of radio and television and has now become one of the indispensable digital devices for television stations, audio-visual centers and all the units and departments that need to produce and broadcast television programs. Below the basic principles of DTBC and the main components and several typical VTR (four heads, 1 inch C grid