发明授权
US4168399A Paging encoder system utilizing a telephone line link 失效
寻呼编码器系统利用电话线路连接

Paging encoder system utilizing a telephone line link
摘要:
A base station encoder is connected to a decoder terminal and paging transmitter by means of a single voice-pair telephone line link. Automatic operations reduce operator fatigue and operating costs. Digital, tone-keyed gain controls automatically compensate for line losses. All dialing, including long distance and overseas calls, and station identification are done automatically.
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