Household alarm system
First Claim
1. An alarm system for a structure comprising:
- means for generating coded radio trigger signals;
alarm controller means responsive to coded radio trigger signals for generating alarm actuation signals;
alarm signals generating means for generation of alarm signals in response to the alarm actuation signals;
an alarm actuation signals transmission line connected between the alarm controller means and the alarm signals generating mans; and
means connected to the alarm actuation signals transmission line for determining integrity of the transmission line.
1 Assignment
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Accused Products
Abstract
An alarm system providing external alarm signals for a structure. The alarm system includes transmitters for generating coded radio trigger signals. An alarm controller located in the interior of the structure is responsive to the coded radio trigger signals for generating alarm actuation signals. The alarm actuation signals are transmitted to alarm signal generators located on the exterior of the structure. Transmission lines for the alarm actuation signals are connected between the alarm controller and the alarm signals generators. Integrity determination of the transmission lines is provided by detection of a break in a current loop provided by a ground line and a ground sense line connected between the controller and the alarm signal generators along side the transmission lines.
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Citations
7 Claims
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1. An alarm system for a structure comprising:
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means for generating coded radio trigger signals; alarm controller means responsive to coded radio trigger signals for generating alarm actuation signals; alarm signals generating means for generation of alarm signals in response to the alarm actuation signals; an alarm actuation signals transmission line connected between the alarm controller means and the alarm signals generating mans; and means connected to the alarm actuation signals transmission line for determining integrity of the transmission line. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A household alarm system comprising:
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portable nonautomatic means for generating coded radio trigger signals; household interior alarm controller means responsive to coded radio trigger signals for generating alarm actuation signals; household exterior alarm signals generating means for generation of alarm signals in response to the alarm actuation signals; an alarm actuation signals transmission line connected between the alarm controller means and the alarm signals generating means; and transmission line integrity determination means connected to the alarm actuation signals transmission line for detecting loss of integrity of the transmission line.
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Specification