| 摘要 |
<p>The mobile telephone communicates via several telecommunications norms. It has a stage (102-119) for emission and reception in which the reception stage has two reception circuits (107,108). The received signals are switched via one or two aerials (102,114) to the receiving stage as required. The switching is by two duplexers (103,225), a selector (113) and a control logic (120-122).</p> |
