发明名称 |
Digital radio satellite and terrestrial ubiquitous broadcasting system using spread spectrum modulation |
摘要 |
A digital radio broadcasting system using spread spectrum modulation transmitted from both geosynchronous satellites and terrestrial repeater stations provides multi-program audio services to mobile and fixed user receivers over a large geographical area in an ubiquitous manner.
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申请公布号 |
US5864579(A) |
申请公布日期 |
1999.01.26 |
申请号 |
US19960690320 |
申请日期 |
1996.07.25 |
申请人 |
CD RADIO INC. |
发明人 |
BRISKMAN, ROBERT D. |
分类号 |
H04B7/185;H04B7/216;H04H20/67;(IPC1-7):H04B1/69;H04B3/36 |
主分类号 |
H04B7/185 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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