Alarm system
First Claim
1. An alarm system comprising:
- an alarm handset and a cradle configured to support the alarm handset such that the alarm handset is removable therefrom, the alarm handset comprising;
a housing;
a detector circuit configured to receive a predetermined signal, indicative of a detection of radiation, noxious gasses or air pollutants, from a transmitter that is remote from the alarm handset and cradle and configured to generate a detection signal in response thereto;
a first sensor configured to sense a removal of the alarm handset from the cradle;
a warning device comprising a light generating device and configured to generate a visible warning signal;
an alarm configured to generate an audible alarm signal;
and a control circuit configured to activate the alarm upon receipt of the detection signal;
wherein the control circuit is further configured to activate the warning device in response to the removal of the alarm handset from the cradle.
2 Assignments
0 Petitions
Accused Products
Abstract
The present invention is an alarm system comprising an alarm handset (10) having a housing (30), a detector circuit (100) having means (102, 104) for receiving a preselected signal from a remote transmitter (40) and generating a first detection signal in response thereto, first sensing means for sensing change in a preselected parameter of the handset, warning means (300) for generating a warning signal, alarm means (400) for generating an alarm signal and control means (500) responsive to receipt of the detection signal to activate the alarm means (400). The control means (500) is operable to activate the warning means in response to at least one of receipt of the control signal and sensing of the change in the preselected parameter of the handset.
22 Citations
15 Claims
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1. An alarm system comprising:
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an alarm handset and a cradle configured to support the alarm handset such that the alarm handset is removable therefrom, the alarm handset comprising; a housing; a detector circuit configured to receive a predetermined signal, indicative of a detection of radiation, noxious gasses or air pollutants, from a transmitter that is remote from the alarm handset and cradle and configured to generate a detection signal in response thereto; a first sensor configured to sense a removal of the alarm handset from the cradle; a warning device comprising a light generating device and configured to generate a visible warning signal; an alarm configured to generate an audible alarm signal; and a control circuit configured to activate the alarm upon receipt of the detection signal; wherein the control circuit is further configured to activate the warning device in response to the removal of the alarm handset from the cradle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification