发明名称 |
Transmitter/receiver arrangements. |
摘要 |
<p>In a half duplex transmitter/receiver arrangement in which received signals are down-converted to an IF frequency for amplification, signals for transmission are modulated onto a carrier at a frequency of twice the IF frequency and this carrier is only frequency-divided to IF for up-conversion when transmission is to take place.</p> |
申请公布号 |
EP0605954(A2) |
申请公布日期 |
1994.07.13 |
申请号 |
EP19930309383 |
申请日期 |
1993.11.24 |
申请人 |
PLESSEY SEMICONDUCTORS LIMITED |
发明人 |
WILLIAMS, ANTHONY DAVID |
分类号 |
H04B1/04;H04B1/26;H04B1/40;(IPC1-7):H04B1/40 |
主分类号 |
H04B1/04 |
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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