发明名称 |
SECURE TRANSMISSION SYSTEM FOR A DIGITAL TRUNKED RADIO SYSTEM |
摘要 |
A security system for a digital trunked radio system having a digital control channel and a plurality of working channels, wherein said working channels are assigned for temporary use of individual radio units by digital control signals transmitted over said control channel, said control channel carrying digital control signals between a base site and said radio units, comprising a digital key, said key used to limit access to the system equipment and system control channel transmissions. |
申请公布号 |
CA2841304(A1) |
申请公布日期 |
2003.12.17 |
申请号 |
CA20032841304 |
申请日期 |
2003.06.16 |
申请人 |
HARRIS CANADA SYSTEMS, INC. |
发明人 |
COLLUM, JAMES FRANCIS;JANKY, WILLIAM OSCAR;PETERSON, EUGENE HAROLD, III;MADDOX, DENNIS |
分类号 |
H04W12/04;H04B7/26;H04W12/00;H04W84/08 |
主分类号 |
H04W12/04 |
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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