发明名称 |
TERMINAL TRANSMISSION APPARATUS FOR MULTIMEDIA SERVICE VIA SATELLITE LINK AND METHOD FOR PROVIDING MULTIMEDIA SERVICE VIA SATELLITE LINK |
摘要 |
PURPOSE: A multiple multimedia service terminal transmitting device and multiple multimedia service providing method capable of providing are provided to transmit voice information by using existing frequency band. CONSTITUTION: A communication broadcasting triple play IP data(240) is inputted. An internet and a TV data permitting a long delay time are inputted to the existing DVB-S2 LDPC encoder(150). Voice data permitting only a short-delay time is inputted to a 4K mode LDPC encoder(250) based on DVB-RCS +M standard. An encoded internet, TV data and voice data are orthogonally modulated by respective DVB-S2 modulators(160,260). Voice data which is orthogonally modulated is inputted to a DVB-RCS diffusion unit(270). By using an orthogonal code minimizing interference between users, it is diffused according to diffusion coefficient.
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申请公布号 |
KR20110050358(A) |
申请公布日期 |
2011.05.13 |
申请号 |
KR20100101988 |
申请日期 |
2010.10.19 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
KIM, PAN SOO;CHANG, DAE IG;LEE, HO JIN |
分类号 |
H04L27/26;H04B7/185 |
主分类号 |
H04L27/26 |
代理机构 |
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地址 |
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