Child monitor system
First Claim
1. A child monitoring system adapted to activate an alarm when the child strays from the supervisor, comprising:
- (a) a master unit including a power supply, first alarm means for emitting an audible alarm, transmitting means for transmitting a first encoded signal, and detecting means for detecting a second encoded signal all of which are electrically coupled to an electronic circuit contained within said master unit;
(b) a remote unit including a power supply, second alarm means for emitting an audible alarm, transmitting means for transmitting the second encoded signal, and detecting means for detecting the first encoded signal, whereby the first alarm means is activated when the master unit fails to receive the second encoded signal for more than a first predetermined time interval and the second alarm means is activated when the remote unit fails to receive the first encoded signal for more than a second predetermined time interval;
(c) key means electrically coupled to said remote unit, wherein the transmitting means of the second encoded signal is activated when the key means is removed from the remote unit and(d) wherein the transmitting means of the first encoded signal is activated when the key means is inserted into a corresponding receptacle of the master unit.
1 Assignment
0 Petitions
Accused Products
Abstract
A system that transmits and receives signals comprising a master unit and a remote unit, wherein a separation distance between the master unit and remote unit is continuously monitored and an alarm is activated on the master unit when no signal is received from the remote unit for at least a time longer than a preset interval. If the separation distance between the master and remote unit is exceeded for a time longer than a preset time interval, the remote unit activates an alarm attached to the remote unit. The master unit may also be used to activate manually the remote unit'"'"'s alarm. A pin or key arrangement is provided that ensures that the remote unit is not deactivated without interfacing with the master unit.
161 Citations
8 Claims
-
1. A child monitoring system adapted to activate an alarm when the child strays from the supervisor, comprising:
-
(a) a master unit including a power supply, first alarm means for emitting an audible alarm, transmitting means for transmitting a first encoded signal, and detecting means for detecting a second encoded signal all of which are electrically coupled to an electronic circuit contained within said master unit; (b) a remote unit including a power supply, second alarm means for emitting an audible alarm, transmitting means for transmitting the second encoded signal, and detecting means for detecting the first encoded signal, whereby the first alarm means is activated when the master unit fails to receive the second encoded signal for more than a first predetermined time interval and the second alarm means is activated when the remote unit fails to receive the first encoded signal for more than a second predetermined time interval; (c) key means electrically coupled to said remote unit, wherein the transmitting means of the second encoded signal is activated when the key means is removed from the remote unit and (d) wherein the transmitting means of the first encoded signal is activated when the key means is inserted into a corresponding receptacle of the master unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
Specification