| 摘要 |
The inactivity alarm has programmable interval timing electronic circuitry, including a reset button. Audible alert electronic circuitry is actuated by timeout of the programmable timing interval to provide successively louder audible signals if the reset button has not been pressed within the timing interval. In another embodiment, the system is included in an electronic telephone. The telephone sends a signal responsive to a predetermined user actuation of the phone. A first timer is resettable by the telephone signal to prevent timeout. The audible alert is activated by timeout of the first timer. A programmed telephone number dialing circuit and second timer are provided. The second timer is resettable by the telephone signal to prevent timeout of the second timer. The programmed telephone number dialing circuitry is activated on timeout of the second timer to dial at least one stored telephone number. Alternatively, timer functions are implemented in a Central Office.
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