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21. 发明授权

US4791658A Integrated alarm and touch tone telephone system 失效
标题翻译：集成报警和触摸音电话系统
公开(公告)号：US4791658A
公开(公告)日：1988-12-13
申请号：US883709
申请日：1986-07-09
申请人： Theodore Simon , Lance Weston , George P. Berg
发明人： Theodore Simon , Lance Weston , George P. Berg
IPC分类号： H04M11/04
CPC分类号： H04M11/045
摘要： A microprocessor controlled integrated alarm and touch tone telephone system which allows the alarm system to be accessed, programmed, and reported upon through a touch tone telephone, either locally or remotely. Under most circumstances, the telephones on the premises can be operated in a normal manner. However, the alarm system selectively monitors the telephone activities for coded touch tone instructions specifically for the alarm system, and responds thereto by issuing synthesized voice reports on the status of the alarm system. A touch tone decoder circuit decodes dialed touch tones, such that the telephone can be utilized similar to a normal keyboard panel to access and control the alarm system. An internal power supply is provided for the telephone for supplying electrical power thereto independently of the outside telephone lines which normally supply power, in the event the outside telephone lines are inoperative. A ring detector circuit is provided for detecting the presence of a ring voltage across the outside telephone lines, and the microprocessor is responsive to a detected ring voltage to disconnect the telephone from the internal power supply and connect it to the outside telephone lines for normal ringing and usage of the telephone. The microprocessor counts the number of rings by which the telephone is being contacted by an off-premises telephone, and after a given number of rings, answers the telephone to allow the user of the off-premises telephone to dial touch tone encoded instructions into the integrated system and to receive voice synthesized reports therefrom.
摘要翻译：微处理器控制的集成报警和触摸音电话系统，允许通过本地或远程的触摸式电话来访问，编程和报告报警系统。在大多数情况下，房屋内的电话可以正常运行。然而，报警系统选择性地监视针对报警系统的编码的触摸音指令的电话活动，并通过发出关于报警系统的状态的合成语音报告来对其进行响应。触摸音解码器电路解码拨号的触摸音，使得电话可以类似于普通键盘面板被利用来访问和控制报警系统。在外部电话线不工作的情况下，为电话提供内部电源，独立于通常供电的外部电话线路供电。提供环形检测器电路，用于检测外部电话线路上是否存在环形电压，并且微处理器响应于检测到的环形电压以将电话与内部电源断开并将其连接到外部电话线路以进行正常振铃和使用电话。微处理器计算外部电话与电话联系的振铃次数，并且在给定数量的振铃之后，应答电话以允许室外电话的用户将触摸音编码的指令拨入集成系统并从其接收语音合成报告。

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