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Patent Issued for LED Device with Power Removal Detection and Method for Using the Same

August 20, 2014



By a News Reporter-Staff News Editor at Electronics Newsweekly -- According to news reporting originating from Alexandria, Virginia, by VerticalNews journalists, a patent by the inventors Adams, Stephen (Mesa, AZ); Rhodes, Jim (Chandler, AZ), filed on September 7, 2011, was published online on August 5, 2014.

The assignee for this patent, patent number 8796930, is JST Performance, Inc. (Gilbert, AZ).

Reporters obtained the following quote from the background information supplied by the inventors: "The disclosure relates to the field of LED lighting devices, specifically LED devices with multiple functional modes.

"Lamps, flashlights, and other similar lighting devices employing one or more light emitting diodes (LEDs) have long been used for a multitude of purposes ranging from street lamps and searchlights to lighting on vehicles. Many of these previously known LED lights comprise multiple user selected modes including various flashing or strobe settings, multiple intensity settings, or any number of other preprogrammed patterns or displays.

"However a problem has developed with the use of LED devices that contain multiple lighting modes, particularly those LED devices that are used in conjunction with vehicles. Specifically, previous vehicular LED devices require both a power and a ground wire, increasing the cost and complexity of the device. Furthermore, many LED devices with multiple lighting modes require a constant small amount of power to operate, even when the LED display is completely turned off. This is extremely critical when the LED device is installed on a vehicle as power is finite and can affect other aspects of the vehicle's overall performance.

"What is needed is an LED lighting device that contains a plurality of lighting modes that does not require a small amount of constant power even when turned off or a ground wire in order to keep costs and complexity at a minimum."

In addition to obtaining background information on this patent, VerticalNews editors also obtained the inventors' summary information for this patent: "The current invention includes a vehicular lighting apparatus that works in combination with a vehicular source of electrical power. The lighting apparatus includes a lighting array having a plurality of operational modes, a microprocessor to control the lighting array, and means for selecting one of a plurality of the operational modes to be performed by the lighting array.

"The lighting apparatus also includes means for detecting when the electrical power source has been disconnected from the lighting array.

"Preferably, the lighting array is an LED lighting array and includes a LED current controller which is connected to both the LED lighting array and to the microprocessor. The plurality of operational modes that may be performed by the lighting array includes operating with a first constant intensity, operating with a second constant intensity, strobing with a first frequency, strobing with a second frequency, cycling with increasing and decreasing intensity, operating at a user defined intensity, and nonoperating.

"In another embodiment, the lighting apparatus includes a second electrical power source which is connected to the microprocessor.

"In yet another embodiment, the lighting apparatus also includes an input sensor connected to the microprocessor. The input sensor which is connected to the microprocessor may a temperature sensor, a movement sensor, or a timer.

"In yet another embodiment, the microprocessor of the lighting apparatus includes a memory storage device.

"The current invention also includes a method for operating a lamp comprising mounting the lamp to an external surface, applying primary power from an external power source to the lamp, detecting the application of primary power from the external power source, performing a first operational mode with the lamp, changing the first operational mode of the lamp to a second operational mode of the lamp, and then finally removing primary power from the lamp.

"In one embodiment, the method specifies that the lamp is an LED array. This embodiment also states that changing the first operational mode performed by the lamp to a second operational mode performed by the lamp includes storing a residual amount of power in a temporary power source connected to the LED array, removing primary power from the LED array, and selecting the second operational mode from a plurality of available operational modes stored within a memory storage device before power stored in the temporary power source is depleted. The selected second operational mode is then stored in the memory storage device before power stored in the temporary power source is depleted and primary power is then reapplied to the LED array. Finally, the selected second operational mode is performed through the LED array. In one particular embodiment, selecting the second operational mode further includes cycling through the plurality of available operational modes stored within the memory storage device.

"In another embodiment, the method step of removing the primary power from the LED lamp further includes selecting a second operational mode from a plurality of available operational modes stored within a memory storage device and storing the selected second operational mode in the memory storage device before temporary power is depleted. The plurality of available operational modes to be selected comprises operating with a first constant intensity, operating with a second constant intensity, strobing with a first frequency, strobing with a second frequency, cycling with increasing and decreasing intensity, operating with a user defined intensity, and nonoperating.

"In yet another embodiment, the method further includes applying a second external power source to the LED lamp and detecting the application of power from the second external power source. This embodiment further includes that the changing the first operational mode performed by the LED array to a second operational mode performed by the LED array includes selecting the second operational mode upon coupling to the second external power source.

"In yet another embodiment, the method step of selecting the second operational mode from a plurality of available operational modes stored within a memory storage device before temporary power is depleted includes measuring an external parameter with an input sensor, determining if the measured external parameter is within a predetermined threshold, and then preventing the second operational mode from being performed by the LED array if the measured parameter is not within the predetermined threshold. The operational mode performed by the LED array may then be altered if the measured parameter is not within the predetermined threshold.

"The invention further includes an LED apparatus with an LED array capable of operating in a plurality of modes, an LED current controller connected to the LED array, and a microprocessor with a memory connected to the LED current controller to select one of the plurality of modes of operation of the LED array. At least one external power source is also connected to the microprocessor in order to provide power to the LED apparatus.

"In one embodiment, the microprocessor of the apparatus selects one of a plurality of operational modes performable by the LED array as controlled by software stored within the memory of the microprocessor when triggered by disruption of power from the external power source.

"In another embodiment, the microprocessor of the apparatus contains means for cycling the operation of the LED array through the plurality of operational modes, the operational mode being stepped through the cycle each time the external power source is electrically disconnected from the microprocessor.

"While the apparatus and method has or will be described for the sake of grammatical fluidity with functional explanations, it is to be expressly understood that the claims, unless expressly formulated under 35 USC 112, are not to be construed as necessarily limited in any way by the construction of 'means' or 'steps' limitations, but are to be accorded the full scope of the meaning and equivalents of the definition provided by the claims under the judicial doctrine of equivalents, and in the case where the claims are expressly formulated under 35 USC 112 are to be accorded full statutory equivalents under 35 USC 112. The disclosure can be better visualized by turning now to the following drawings wherein like elements are referenced by like numerals."

For more information, see this patent: Adams, Stephen; Rhodes, Jim. LED Device with Power Removal Detection and Method for Using the Same. U.S. Patent Number 8796930, filed September 7, 2011, and published online on August 5, 2014. Patent URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=8796930.PN.&OS=PN/8796930RS=PN/8796930

Keywords for this news article include: Electronics, Legal Issues, Microprocessors, JST Performance Inc..

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Source: Electronics Newsweekly


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