Standards

GY/T 398.1-2024 Active

GY/T 398.1-2024 Video shallow compression encoding Part 1: Hierarchical coding of Ultra High Definition video

This document specifies the encoding framework for shallow compression layered coding of ultra-high definition video, the syntax and semantics of the enhanced layer coding bitstream, the decoding process, the image reconstruction process, and the HD-SDI interface transmission method and file encapsulation method. This document is applicable to video encoding in the field of ultra-high definition video program production and broadcasting.

Publish Date: 2024-01-02

GY/T 397-2023 Active

GY/T 397-2023 Free perspective video system technical requirements

This document specifies the technical requirements for a free-viewpoint video system, including the technical requirements for the shooting and acquisition subsystem, the media processing subsystem, the distribution subsystem, the distribution network, and the terminal playback subsystem, as well as the technical requirements for the free-viewpoint video data format. This document is applicable to the design, construction, acceptance, operation, and maintenance of free-viewpoint video systems, as well as the shooting, exchange, distribution, and playback of free-viewpoint video content.

Publish Date: 2023-12-01

GY/T 396-2023 Active

GY/T 396-2023 Cloud gaming overall technical requirements

This document specifies the overall technical architecture of cloud gaming, as well as the technical requirements for cloud gaming platforms, networks, cloud gaming terminals, and cloud gaming security. It also sets forth requirements for cloud gaming platforms and terminals aimed at underage users. This document is applicable to the planning, design, construction, acceptance, operation, management, and maintenance of cloud gaming systems and devices.

Publish Date: 2023-12-01

GY/T 395-2023 Active

GY/T 395-2023 Immersion terminal universal technical requirements

This document specifies the general technical requirements for immersive terminals, including display, audio playback, playback control, and presentation environments. This document is applicable to the system design, equipment production, system construction, project construction, technical quality evaluation, and performance testing of immersive terminals such as immersive rooms, spherical screens, curved screens, dome screens, and small-scale immersive terminals. This document is not applicable to conventional cinemas, VR helmets, VR glasses, and other head-mounted terminals, as well as immersive facilities constructed using environmental and non-audiovisual devices.

Publish Date: 2023-12-01

GY/T 394-2023 Active

GY/T 394-2023 Emergency broadcast loudspeaker system technical requirements and measurement methods

This document specifies the technical requirements and measurement methods for emergency broadcast loudspeaker systems. This document is applicable to the design, production, construction, and operation of emergency broadcast loudspeaker systems.

Publish Date: 2023-11-30

GY/T 393-2023 Active

GY/T 393-2023 Cable digital TV emergency broadcasting technical specifications

This document specifies the emergency broadcast message transmission and command security protection mechanisms, emergency broadcast message encapsulation protocol, emergency broadcast digital certificate authorization protocol, and management configuration protocol based on DVB-C cable digital television emergency broadcast systems, as well as the processing requirements for emergency broadcast messages by cable digital television front-ends and the processing and display requirements for emergency broadcast messages by cable digital television emergency broadcast receivers. This document is applicable to the design, construction, operation, and maintenance of emergency broadcast systems based on cable digital television.

Publish Date: 2023-11-30

GY/T 392-2023 Active

GY/T 392-2023 Emergency Broadcast Satellite Transmission Technical Specification

This document specifies the emergency broadcast message encapsulation protocol and processing requirements based on satellite broadcast television transmission. This document is applicable to the transmission of emergency broadcast messages using satellite broadcast television transmission systems, as well as the design, development, and operation and maintenance of related systems and equipment. This document is not applicable to systems related to satellite live emergency broadcasting.

Publish Date: 2023-11-30

GY/T 391-2023 Active

GY/T 391-2023 Medium wave amplitude modulation broadcast emergency broadcast technical specifications

This document specifies the emergency broadcast message transmission mechanism, emergency broadcast message encapsulation protocol, channel coding and modulation for medium-wave AM broadcasting, the processing requirements for emergency broadcast messages by medium-wave transmission stations, and the demodulation and processing requirements for emergency broadcast messages by medium-wave emergency broadcasting receivers. This document is applicable to the design, development, construction, acceptance, operation, and maintenance of medium-wave AM broadcasting emergency broadcasting systems.

Publish Date: 2023-11-30

GY/T 390-2023 Active

GY/T 390-2023 Simulation of FM broadcast emergency broadcast technical specifications

This document specifies the encapsulation protocol, baseband encoding, and modulation and demodulation mechanisms for emergency broadcast messages in analog FM broadcasting systems. This document is applicable to the design, construction, operation, and maintenance of emergency broadcast systems based on analog FM broadcasting, as well as the development and manufacturing of related equipment.

Publish Date: 2023-11-30

GY/T 389-2023 Active

GY/T 389-2023 Digital Signature Specification for Emergency Broadcast System

This document specifies the digital signature security protection mechanism for emergency broadcasting service data and emergency broadcasting transmission coverage subject instructions. This document is applicable to the security protection of the entire process of emergency broadcasting, from emergency information access, dispatch control, and transmission coverage to reception.

Publish Date: 2023-11-30

GY/T 388-2023 Active

GY/T 388-2023 Emergency Broadcast System Password Application Technical Specification

This document specifies the technical requirements for the application of passwords in emergency broadcasting systems. This document is applicable to guiding and standardizing the application, operation, and evaluation of passwords in emergency broadcasting systems.

Publish Date: 2023-11-30

GY/T 387-2023 Active

GY/T 387-2023 The Technical Specification for County Emergency Broadcast System GY/T 387-2023

This document specifies the basic structure, main components, operating mode, system interface, technical requirements, and main functions of the county-level emergency broadcasting system. This document is applicable to the design, construction, operation, and maintenance of new county-level emergency broadcasting systems, as well as the upgrading and transformation of existing systems.

Publish Date: 2023-11-30