发明公开
EP1520381A1 METHOD, SYSTEM AND APPARATUSES FOR TRANSFERRING AUDIO AND/OR VIDEO SIGNALS BETWEEN SYNCHRONOUS AND ASYNCHRONOUS NETWORKS AND FOR MINIMIZING DELAY TIME IN SUCH NETWORKS
审中-公开
方法,系统和设备的音频和/或同步和异步网络之间,并尽量减少在这样的网络延时的视频信号传输
- 专利标题: METHOD, SYSTEM AND APPARATUSES FOR TRANSFERRING AUDIO AND/OR VIDEO SIGNALS BETWEEN SYNCHRONOUS AND ASYNCHRONOUS NETWORKS AND FOR MINIMIZING DELAY TIME IN SUCH NETWORKS
- 专利标题(中): 方法,系统和设备的音频和/或同步和异步网络之间,并尽量减少在这样的网络延时的视频信号传输
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申请号: EP03727461.0申请日: 2003-05-09
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公开(公告)号: EP1520381A1公开(公告)日: 2005-04-06
- 发明人: WIESE, Detlef , RIMKUS, Joerg
- 申请人: MAYAH Communications GMBH
- 申请人地址: Am Soeldnermoos 17 85399 Hallbergmoos DE
- 专利权人: MAYAH Communications GMBH
- 当前专利权人: MAYAH Communications GMBH
- 当前专利权人地址: Am Soeldnermoos 17 85399 Hallbergmoos DE
- 代理机构: Dini, Roberto, Dr. Ing.
- 优先权: EP02010590 20020510
- 国际公布: WO2003096639 20031120
- 主分类号: H04L12/66
- IPC分类号: H04L12/66 ; H04H7/00
摘要:
The present invention refers to a method and/or system for transferring/receiving audio and/or video signals fulfilling the requirement to bridge synchronous and asynchronous networks and minimizing delay time over such networks characterised by the steps of: analysing the active network interface or verifies which network interface is receiving and/or sending data; taking a synchronous-clock signal (multiplexed signal) from the network and providing it to a bitstream analyser (3); analysing the format of the multiplexed signal obtained from another audio codec (e.g. Inverse Multiplexing); analysing the audio format (e.g. MPEG 1 Layer 3 128 kBit/s stereo); adapting the ISDN network clock to the IP (Internet Protocol) network clock and resulting in a clock-adapted digital signal; encoding said digital signal; adapting the encoded signal to the IP (Internet Protocol) datagrams as required by the network interface and by the network itself in terms of protocols, packet size, etc. and resulting in a datagram signal; taking the datagram signal and putting it in the IP (Internet Protocol) network (e.g. 100 Mbit/s Ethernet).
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