发明授权
US4881241A Method and installation for digital communication, particularly between
and toward moving vehicles
失效
用于数字通信的方法和安装，特别是在移动车辆之间和之间
- 专利标题： Method and installation for digital communication, particularly between and toward moving vehicles
- 专利标题（中）： 用于数字通信的方法和安装，特别是在移动车辆之间和之间
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申请号： US159920申请日： 1988-02-24
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公开(公告)号： US4881241A公开(公告)日： 1989-11-14
- 发明人: Daniel Pommier , Michel Alard
- 申请人： Daniel Pommier , Michel Alard
- 申请人地址： FRX Issy les Moulineaux FRX Paris
- 专利权人： Centre National d'Etudes des Telecommunications,Telediffusion de France
- 当前专利权人： Centre National d'Etudes des Telecommunications,Telediffusion de France
- 当前专利权人地址： FRX Issy les Moulineaux FRX Paris
- 主分类号： H04H20/72
- IPC分类号： H04H20/72 ; H04L1/00 ; H04L27/26
摘要：
A digital broadcasting process, suitable for digital audiobroadcast, comprises encoding the data in the form of binary words using a redundant code to obtain a sequence of modulation symbols and transmitting the symbols in a plurality of subchannels at different frequencies. The symbols are time interlaced with such a distribution that two adjacent symbols cannot be transmitted in time succession and at the same one of the frequencies. Preferably, a Viterbi decoder is used. Particular construction of an emitter and a receiver are also described.
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