Patent application number | Description | Published |
20090160669 | METHOD FOR PASSING A FAILSAFE ALARM SIGNAL THROUGH A LIFE SAFETY SYSTEM THAT EXPERIENCES A CATASTROPHIC FAILURE - An improved life safety system provides ability to detect a catastrophic failure within a network node of the life safety system, and to subsequently pass a failsafe alarm signal through a network node, and through the life safety system, despite the catastrophic failure, which may be a failed main processor of a main panel, a failed main processor of a loop expander module, a failed main processor of an amplifier, or a failed main processor of a liquid crystal display controller. | 06-25-2009 |
20090167544 | Boost Voltage For Fire System Notification Appliance Circuits - An apparatus includes one or more notification circuits for powering devices for alerting personnel of certain conditions and a power supply path for the one or more notification circuits modeled according to a specification, and a battery backup power supply connected to the one or more notification circuits having circuitry that boosts an output voltage of the battery backup power supply such that the devices of the one or more notification circuits as modeled are provided with a working voltage and current. In addition, a method includes modeling one or more notification circuits for powering devices for alerting personnel of certain conditions and a power supply path for the one or more notification circuits according to a specification, and boosting the output of a battery backup power supply connected to the power supply path such that the devices are provided with at least a working voltage and current as modeled. | 07-02-2009 |
20090167549 | INSTALLATION INDICATOR FOR A SELF SUFFICIENT POWER SUPPLY - An apparatus includes a self sufficient power supply providing power to the apparatus when a main power supply is faulty, and an indicator adjacent to terminals of the apparatus that indicates when the self sufficient power supply is incorrectly connected to the terminals. In addition, a method includes installing a self sufficient power supply to provide power to an apparatus when a main power supply is faulty, and providing an indicator adjacent to terminals of the apparatus that indicates when the self sufficient power supply is incorrectly connected to the terminals. | 07-02-2009 |
20100085310 | METHOD AND INTERFACE DEVICE FOR OPERATING A SECURITY SYSTEM - An interface device includes at least one programmable device and a display portion coupled to the at least one programmable device. The display portion is configured to convey a hierarchical relationship of a plurality of screen images that at least partially overlap each other. The hierarchical relationship includes the plurality of screen images defined in a series of logically related, ordered, and ranked groupings. | 04-08-2010 |
20100142699 | METHOD, SYSTEM, AND APPARATUS FOR A DIFFERENTIAL TRANSFORMER-FREE HYBRID CIRCUIT - A differential transformer-free hybrid circuit includes a first amplifier configured to receive a first signal from a transmitter and output the first signal to a telephone loop, and a second amplifier configured to receive a second signal from the telephone loop and output the second signal to a receiver. Further, the differential transformer-free hybrid circuit also includes at least one balanced network element and a transformer-less interface configured to couple the first amplifier and the second amplifier to the telephone loop, wherein the transformer-less interface includes at least one current blocking device. | 06-10-2010 |
20100185450 | METHOD AND SYSTEM FOR EFFICIENT OPTIMIZATION OF AUDIO SAMPLING RATE CONVERSION - A controller for outputting audio having a predetermined output sample rate. The controller is programmed to receive an audio signal having a first sample rate, identify the first sample rate of the audio signal, select a converter based on the identification of the first sample rate, and convert the sample rate of the received audio signal to the predetermined output sample rate. | 07-22-2010 |
20100253531 | SYSTEM AND METHOD OF CONTROLLING INDICATORS OF A PROPERTY MONITORING SYSTEM - Property monitoring system and method of operating. Two signal lines are used to couple a master controller in series with a plurality of indicators. Each indicator has a visual display. Each visual display has a plurality of LEDs, or other type of lighting device. The master controller is configured to generate a multi-bit digital command message to be transmitted serially to the plurality of indicators over the second signal line upon receipt of an alarm condition message. Each command message has a predetermined time delay for activating each of the indicators, or a component thereof, so that all indicators activate in unison. | 10-07-2010 |
20110043367 | INTELLIGENT NOTIFICATION APPLIANCE CIRCUIT AND SYSTEM - An intelligent notification appliance circuit has a controller and one or more addressable notification appliances coupled with a single pair of wires. The controller outputs integrated power, audio and control signals, and transmits the integrated signals to the one or more addressable notification appliances. Thus, the one or more addressable notification appliances are powered, operated, controlled, and monitored using the intelligent notification appliance circuit. When the intelligent notification appliance circuit is implemented in a fire and/or mass notification system, that system is able to provide integrated audio signals, power signals and control signals over a single pair of wires. The integrated audio signals may carry data indicative of live or recorded music and/or voice messages, such as: mass notification messages, general page, voice evacuation, and the like. | 02-24-2011 |