Patent application number | Description | Published |
20080266064 | APPARATUS AND METHOD FOR SYNCHRONIZING VISUAL/AUDIBLE ALARM UNITS IN AN ALARM SYSTEM - An apparatus and concomitant method of reducing the number of synchronization pulses transmitted to the alarm units for increasing the reliability of the overall alarm system is disclosed. The synchronization signal is implemented as a reference or reset signal from which the alarm units derive a reference time to begin activation of the alarm units. Thus, when an alarm unit receives a reference synchronization pulse, the alarm unit applies the reference synchronization pulse as a reference point in time to trigger a series of flashes or audio tones. A second signal sent in close proximity to the synchronization signal is implemented to trigger a second function of the alarm units, such as a silence function. | 10-30-2008 |
20090153339 | METHOD AND APPARATUS FOR BOOSTING AN AUDIBLE SIGNAL IN A NOTIFICATION SYSTEM - The present invention is an apparatus and a concomitant method for boosting the audio signal generated by at least one notification appliance in a supervised emergency voice evacuation system. | 06-18-2009 |
20090321754 | SIGNAL LIGHT USING PHOSPHOR COATED LEDS - A method for creating an improved signal light is disclosed. For example, the improved signal light includes a housing, one or more first type of light emitting diodes (LEDs) emitting a light energy having a first dominant wavelength deployed in the housing, one or more second type of LEDs emitting a light energy having a second dominant wavelength deployed in the housing, a filter and a mixer. The filter may filter the light energy of the one or more second type of LEDs such that only a third dominant wavelength passes from the one or more second type of LEDs. The mixer may mix the light energy having the first dominant wavelength and the filtered light energy having the third dominant wavelength to form a light energy having a desired fourth dominant wavelength. | 12-31-2009 |
20100052935 | METHOD AND APPARATUS FOR PROVIDING A NOTIFICATION APPLIANCE WITH A LIGHT EMITTING DIODE - A method and apparatus for providing a strobe alarm unit employing at least one light emitting diode. | 03-04-2010 |
20100052936 | METHOD AND APPARATUS FOR PROVIDING A NOTIFICATION APPLIANCE WITH A LIGHT EMITTING DIODE - A method and apparatus for providing a strobe alarm unit employing at least one light emitting diode. | 03-04-2010 |
20100084979 | APPARATUS FOR USING HEAT PIPES IN CONTROLLING TEMPERATURE OF AN LED LIGHT UNIT - A light emitting diode (LED) light unit is disclosed. For example, the LED light unit includes at least one support plate having one or more inner openings. At least one LED array may be coupled to an LED board. The LED light unit also includes at least one heat pipe coupled to the LED board, wherein said LED board is coupled to the at least one support plate. | 04-08-2010 |
20110241034 | SIGNAL LIGHT USING PHOSPHOR COATED LEDS - A method for creating an improved signal light is disclosed. For example, the improved signal light includes a housing, one or more first type of light emitting diodes (LEDs) emitting a light energy having a first dominant wavelength deployed in the housing, one or more second type of LEDs emitting a light energy having a second dominant wavelength deployed in the housing, a filter and a mixer. The filter may filter the light energy of the one or more second type of LEDs such that only a third dominant wavelength passes from the one or more second type of LEDs. The mixer may mix the light energy having the first dominant wavelength and the filtered light energy having the third dominant wavelength to form a light energy having a desired fourth dominant wavelength. | 10-06-2011 |
20120013480 | METHOD AND APPARATUS FOR PROVIDING A NOTIFICATION APPLIANCE WITH A LIGHT EMITTING DIODE - A method and apparatus for providing a strobe alarm unit employing at least one light emitting diode. | 01-19-2012 |
20120068853 | METHOD AND APPARATUS FOR PROVIDING A NOTIFICATION APPLIANCE WITH A LIGHT EMITTING DIODE - A method and apparatus for providing a strobe alarm unit employing at least one light emitting diode. | 03-22-2012 |
20140159578 | APPARATUS FOR USING HEAT PIPES IN CONTROLLING TEMPERATURE OF AN LED LIGHT UNIT - A light emitting diode (LED) light unit is disclosed. For example, the LED light unit includes at least one support plate having one or more inner openings. At least one LED array may be coupled to an LED board. The LED light unit also includes at least one heat pipe coupled to the LED board, wherein said LED board is coupled to the at least one support plate. | 06-12-2014 |