GB 24850-2020.Minimum allowable values of energy efficiency and energy efficiency grades for flat panel televisions and set-top boxes. GB 24850规定了平板电视

GY/T 5093-2020.Technical standard for engi neer ing construction of emer gency broadcasting platform. 1.0.3应急广播平台工程的建设应符合全国应急广播体系建设总体规划并满足应急信息发布需求，遵循统

GY 5013-2014.Code for radio television engineering survey. 3.2天文 点经纬度测量 3.2. 1经纬仪或 全站仪测定天文点的经度宜采用恒星高度法，观测应满足下列要求: 1结合 星图选择天顶距小于75°、亮度不弱于四等，且位于 卯酉圈两侧30

GY/T 318-2018.Implementation guidelines for single frequency network system of digital terrestrial television broadcasting. GY/T 318给出了符合GB 20600- -20

GY/T 336-2020.Digital rights management of video audio content distribution-System compliant requirements. GY/T 336规定了视音频内容分发数字版权管理系统功能、性能、标准符合性测试要求，以

GY/T 332-2020.Specification of data format for interactive video over the internet. 互动视频制作平台通过互动视频制作工具为视频添加剧情选择、视角切换、画面交互等互动组件，并为其设定样式和参数，编辑、预览视频互动效果，

GY/T 330-2020.Colour bar test pattern for urtra high definition and high dynamic range video sy stems. GY/T 330规定了超高清高动态范围(HDR) 视频系统彩条测试图，包括混合对数伽马(HLG

GY/T 331-2020.Technical requirements for audio identification and line-up signal of high definition television. 4.2.4信号使用方法 4.2.4.1 概述 信号以44s为一个周期循环播放

GY/T 329一2020.Test materials to be used in subjective assessment for 4K ultra high definition v ideo picture quality. GY/T 329规定了信号格式符合GY/T 307- -2017

GY/T 334一2020.Digital rights management of video audio content distribution-Digital rights management system integration for OTTTV. 并将内容授权返回的许可证获取响应消息