
GB/T 15845.4-2003 Technical requirements for audio-visual user terminals Narrow-band audio-visual systems and terminal equipment
time:
2024-08-08 14:09:25
- GB/T 15845.4-2003
- in force
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)
-
Date of Release:
2003-01-17 -
Date of Implementation:
2003-08-01
Standard ICS number:
Telecommunications, audio and video technology>>Audio, video and audiovisual engineering>>33.160.60 Multimedia systems and teleconferencingChina Standard Classification Number:
Communications, Broadcasting>>Communication Equipment>>M32 Data Communications Equipment
alternative situation:
GB/T 15845.4-1995Procurement status:
ITU-T H.320:1999
publishing house:
China Standards PressISBN:
155066.1-19512Publication date:
2004-04-10
Release date:
1995-12-13Review date:
2004-10-14Drafter:
Shi Denian, Liu XiaohongDrafting Organization:
Telecommunications Transmission Research Institute of the Ministry of Information IndustryFocal point Organization:
Telecommunication Research Institute of the Ministry of Information IndustryProposing Organization:
Ministry of Information Industry of the People's Republic of ChinaPublishing Department:
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of ChinaCompetent Authority:
Ministry of Information Industry (Electronics)

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Summary:
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
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