Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1997-06-09
1998-06-30
Hofsass, Jeffery A.
Communications: electrical
Condition responsive indicating system
Specific condition
340573, 340575, 340689, 340517, 340524, 340521, G08B 2300
Patent
active
057740550
ABSTRACT:
An infant monitoring device includes a sensor connected to an alarm for alerting a parent when an infant is in a predetermined position. In a second embodiment, the alarm is activated only if the same body position is detected by the sensor for the duration of a delay determined by a timer. In a third embodiment, a wireless transmitter is connected to the sensor for communicating with a wireless receiver and activating a remote alarm. In a fourth embodiment, a timer is connected between the sensor and the wireless transmitter to reduce false alarms. In a fifth embodiment, a plurality of sensors are connected to a multi-channel wireless transmitter for sensing a plurality of positions, and communicating with a multi-channel wireless receiver for activating a remote alarm. In a sixth embodiment, a timer is connected between the sensors and the multi-channel transmitter for reducing false alarms. In all embodiments, the sensor may be a disc-shaped or spherical mercury switch with one or more pairs of electrodes for detecting one or a plurality of positions, or the sensor may be a hollow housing with a pendulum arm making contact with electrodes on the interior thereof.
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Hofsass Jeffery A.
Lo Jack
Pham Toan N.
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