GB/T 15845.4-2003 Technical requirements for audio-visual user terminals Narrow-band audio-visual systems and terminal equipment

Basic Information

Standard ID: GB/T 15845.4-2003

Standard Name: Technical requirements for audio-visual user terminals Narrow-band audio-visual systems and terminal equipment

Chinese Name: 视听用户终端技术要求窄带视听系统和终端设备

Standard category:National Standard (GB)

state:in force

Date of Release2003-01-17

Date of Implementation:2003-08-01

standard classification number

Standard ICS number:Telecommunications, audio and video technology>>Audio, video and audiovisual engineering>>33.160.60 Multimedia systems and teleconferencing

Standard Classification Number:Communications, Broadcasting>>Communication Equipment>>M32 Data Communications Equipment

associated standards

alternative situation:GB/T 15845.4-1995

Procurement status:ITU-T H.320:1999

Publication information

publishing house:China Standards Press

ISBN:155066.1-19512

Publication date:2004-04-10

other information

Release date:1995-12-13

Review date:2004-10-14

drafter:Shi Denian, Liu Xiaohong

Drafting unit:Telecommunications Transmission Research Institute of the Ministry of Information Industry

Focal point unit:Telecommunication Research Institute of the Ministry of Information Industry

Proposing unit:Ministry of Information Industry of the People's Republic of China

Publishing department:General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

competent authority:Ministry of Information Industry (Electronics)

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Introduction to standards:

This part of GB/T 15845 specifies the technical requirements for narrowband audiovisual systems and terminal equipment. The requirements for audiovisual services for videophones are specified in Recommendation F.720, and the requirements for audiovisual services for videoconferencing are specified in Recommendation F.702. The technical requirements for audio coding, video coding, and some other common parts of audiovisual services are specified in other recommendations in the H.200/F.720 series of recommendations. This part applies to narrowband audiovisual systems and terminal equipment, and the channel rate of such audiovisual equipment services does not exceed 1920kbit/s. GB/T 15845.4-2003 Technical requirements for audiovisual user terminals Narrowband audiovisual systems and terminal equipment GB/T15845.4-2003 Standard download decompression password: www.bzxz.net