GY/T 261-2012.Metadata specifications of radio and telev ision digital rights management. GY/T 261规定了广播电视数字内容的数字版权管理元数据、元数据的使用规则和数据表达方式，提供了一个开放的元数据框架，

GY/T 280-2014.Specifications of interface data for transmitting station operation management system. 1范围 GY/T 280规定了广播电视发射台运行管理系统与上级管理系统之间数据通信的接口规范。 G

GY/T 245一2010.Technical specifications for interface of digital cable television receiving card adding-in TV set. GY/T 245规定了电视接收机有线数字电视接收卡(简称接收卡)的内部接

GY/T 107-1992. GY/T 107规定了电视中心播控系统雄护管理的范围、任务和要求，系统和主要设备的技术指标，停播事故、播出事故的定义和分类等内容。 GY/T 107适用于各级电视中心的播控系统，作为系统的维护管理依据。 2引用标准 GB 1583 彩色电视图像传输 GB 3174 彩色

GY/T 257.1-2012.Advanced coding of video and audio for broadcasting-Part 1: video. GY/T 257.1规定了多种比特率、分辨率和质量的视频压缩方法，并且规定了解码过程。 GY/T 257.1适用于地面电视广播、有线电

GY/T 324-2019.Technical requirements and measurement methods of AVS2 professional satellite integrated receiver decoder for 4K UHDTV. GY/T 324规定了视频解码采

GY/T 326-2019.Specifications of PLUGE test signals and alignment procedures for setting of brightness and contrast of monitors. GY/T 326规定了广播电视行业用监视器亮

GY/T 325-2019.Technical requirements and measurement methods for AV-IT system in TV station's file-based producing and broadcasting networks. GY/T 325

GY/T 276-2013.Technical requirements and methods of measurement for cinema ticket management system. GY/T 276规定了用于电影院票务管理系统中的电影院编码、影片编码、基本功能及数据交换方式等内

GY/T 278-2014.Technical requirements and measurement methods of standard definition direct broadcasting satellite intergrated receiver decoder with co