DIGITAL ALARM CONTROLS

Brand Owner (click to sort) Address Description
DYNACARE DYNAMARK SECURITY CENTERS, INC. 18702 Crestwood Drive Hagerstown MD 21742 digital alarm controls, digital security transmitters for window and door installation, portable panic button transmitters, infrared sensors, infrared transmitters; security control and fire detection systems comprising smoke detectors, monitor, code access panel, wireless keypad alarm, alarm light, and parts therefor; security alarm components, namely master alarm control units and alarm transmitters;installation, maintenance, and repair of security systems for residential and commercial use;security system monitoring services;
DYNAMARK FIRST ACTION SECURITY TEAM, INC. 525 Northern Avenue Hagerstown MD 21742 DIGITAL ALARM CONTROLS, DIGITAL SECURITY TRANSMITTERS FOR WINDOW AND DOOR INSTALLATION, PORTABLE PANIC BUTTON TRANSMITTERS, INFRARED SENSORS, INFRARED TRANSMITTERS, MASTER ALARM CONTROL UNITS, AND ALARM TRANSMITTERS;DYNA-MARK;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. The present invention provides a burglar alarm system capable of accurately discriminating an alarm from a disturbance noise approximate to the alarm such as background music, ambient noises, etc. In a burglar alarm system comprising an alarm unit attached to an object to be protected from theft to emit an alarm of a particular frequency and an alarm sensor device for issuing an alarm signal upon sensing an alarm from the alarm unit, the alarm sensor device counts a predetermined number of waveform pulses of a received sound (S2, S5) more than once (S1~S3, S4~S6), determines, if it transpires that a differential between counted values falls within a predetermined time range, that the received sound is an alarm and issues an alarm signal (S7).