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Document Title |
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8169165 |
Multi-mode portable lighting device
A portable lighting device, such as a flashlight, with a mechanical power switch and multiple operating modes is provided. The mechanical power switch is disposed in series with the controller for...
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8134300 |
Portable lighting devices
A flashlight having a locking mechanism for securing a head skirt to a head assembly is disclosed. A circuit for temporarily remember the mode of operation of the flashlight is also disclosed.
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8120263 |
Portable lighting device and method thereof
A portable lighting device includes a power source, a controller, and a load. The controller comprises a power input terminal which is electrically connected to the power source via a switch. The...
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8084946 |
Method of driving a flash device and a number of loads powered by a battery and handheld electronic device including the same
A handheld electronic device includes a processor; a battery; a flash device; a number of loads powered by the battery; and a flash driver outputting a flash current to the flash device. The...
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8059192 |
Method and apparatus for maximizing the sustainable flash of a handheld portable electronic device
A method and apparatus for maintaining a maximum sustained flash current over the whole length of a flash using a programmable current drive in a handheld portable device powered by a battery. The...
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8053996 |
Light emitting device for transmission of communications information
A light emitting device 1 is adapted, with a distributed power supply voltage, to turn on a light emitter 7, while timing a continuous conduction time with a pulse generating circuit 2, a frequency...
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8040069 |
Method and apparatus for maximizing the sustainable flash of a handheld portable electronic device
A method and apparatus for maintaining a maximum sustained flash current over the whole length of a flash using a programmable current drive in a handheld portable device powered by a battery. The...
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8026675 |
Light emitting diode driving circuit and light emitting diode array device
There is provided an LED driving circuit including: at least one ladder network circuit including: (n+1) number of first branches connected in parallel with one another by n number of first middle...
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8013535 |
Flash pattern selection via power switch
Lighting apparatus, systems and methods are disclosed. One lighting apparatus includes a light source, a power source in electrical communication with the light source, and a power button arranged...
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7999480 |
Control circuit and flash system using same
A control circuit is configured to control the charge and discharge of a flash unit. The flash unit includes an anode, a cathode, and a trigger electrode. The control circuit includes a charging...
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7994726 |
Intelligent user interface including a touch sensor device
The present invention, according to a preferred embodiment, is directed to portable electronic devices which operate on exhaustible power sources, for example, batteries. The electronic devices of...
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7986100 |
LED string
A light-emitting diode (LED) string is provided. The LED string includes a power plug configured for connecting with a power source to power the LED string; one or more LED sockets configured for...
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7986112 |
Thermally self-stabilizing LED module
An improved LED module that is thermally self-stabilizing, and that is able to be retrofitted into an existing flashlight is provided. In one embodiment, the LED module includes a light emitting...
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7982407 |
Stroboscopic illuminator
A photographic illumination system, comprising a first stroboscopic flash tube, for emitting an intense broadband illumination pulse comprising ultraviolet rays; a second stroboscopic flash tube,...
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7863825 |
LED driver circuit for providing desired luminance with constant current
An LED driver circuit that sinks pure DC current through LEDs. According to the invention, a constant current sink circuit is coupled to a full bridge rectifier. The full bridge rectifier includes...
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7852300 |
Current regulator for multimode operation of solid state lighting
An exemplary apparatus embodiment provides a plurality of operating modes for solid state lighting, such as a flash mode and a constant or background lighting mode for use with devices such as...
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7800313 |
Multi-mode LED retrofit module apparatus and method
A multi-mode LED retrofit module is provided for a flashlight of a type having a serious circuit including a battery power supply, a light bulb, and a single pull, single throw rotary on/off...
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7795819 |
Discharge lamp controls
At least one electric discharge lamp capable of generating a broadband output pulse of a range of wavelengths in the visible spectrum, the output pulse having a predetermined time interval and a...
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7781980 |
Intelligent user interface including a touch sensor device
The present invention, according to a preferred embodiment, is directed to portable electronic devices which operate on exhaustible power sources, for example, batteries. The electronic devices of...
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7777809 |
Method and apparatus for maximizing the sustainable flash of a handheld portable electronic device
A method and apparatus for maintaining a maximum sustained flash current over the whole length of a flash using a programmable current drive in a handheld portable device powered by a battery. The...
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7723921 |
Circuitry for portable lighting devices and portable rechargeable electronic devices
A portable electronic device, such as a flashlight, with a circuit for reducing the initial surge of current that is sent through the lamp filament when a flashlight is turned on is provided. The...
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7723923 |
Electroluminescent element driving apparatus
The present utility model discloses an electroluminescent element driving apparatus, which mainly resolves the problems caused by insufficient supplying of an electric power to affect the service...
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7710044 |
Flashlamp drive circuit
A flashlamp drive circuit including a storage capacitor which is charged and selectively discharged in order to drive a flashlamp. A capacitor (116) is connected in parallel with each respective...
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7705542 |
Flashlight
A flashlight in accordance with an aspect of the invention includes an ID module for generating an ID signal indicative of a power mode of the flashlight. In an aspect, the flashlight mates with a...
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7687999 |
Emergency indicator light for vehicle pennant
A safety light for vehicles, particularly small recreational vehicles such as all terrain vehicles, which is one or more light strips entwining the whip which supports the vehicle's pennant or...
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7679291 |
Barricade flasher
A flashing warning light apparatus wherein there is provided one or more light-emitting diodes, the light-emitting diode being driven in a pulsed manner to achieve light output at a selected flash...
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7652434 |
Electronic flash unit and manufacturing method thereof
The electronic flash unit disclosed comprises: a transformer (14) to vary voltages of a power supply; an accumulator (16) composed of a main capacitor (17) to charge an electric energy supplied...
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7649323 |
Rechargeable light-emitting diode driver circuit
A self-contained, rechargeable LED flashlight uses a zener diode in reverse-breakdown avalanche mode as a low-cost voltage regulator. A second embodiment of the LED flashlight incorporates...
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7642725 |
Unbalanced plural string LED driver with common return resistor
The present disclosure describes systems and methods for driving light emitting diodes (LEDs). At least some embodiments include an LED driver system that includes a power supply, a plurality of...
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7633234 |
Method and apparatus for maximizing the sustainable flash of a handheld portable electronic device
A method and apparatus for maintaining a maximum sustained flash current over the whole length of a flash using a programmable current drive in a handheld portable device powered by a battery. The...
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7609005 |
Circuitry for portable lighting devices and portable rechargeable electronic devices
A portable rechargeable electronic device, such as a flashlight, with external charging contacts and a short protection circuit is disclosed. The short protection circuit electrically uncouples one...
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7600884 |
Motion activated and selective light circuit
A motion activated light circuit is comprised of a motion activatable switch which effects switch closures upon displacement thereof for connecting a supply voltage to a pulse generator circuit...
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7579783 |
Microprocessor-controlled insertable flashlight adapter device
An insertable flashlight adapter device for use in an ordinary flashlight having a lamp includes a disc-like shaped housing unit. Electronic circuitry is disposed within the housing unit for...
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7573212 |
Automatic power control module for battery powered devices
A power control module which can be used to automatically open a power circuit for electrically operated devices, particularly battery operated devices, during predetermined periods of non-use. A...
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7535180 |
Semiconductor light emitting circuits including light emitting diodes and four layer semiconductor shunt devices
Semiconductor light emitting circuits include semiconductor light emitting diodes that are serially connected between a pair of input terminals. Four layer semiconductor devices, such as Shockley...
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7498749 |
Intelligent electrical switching device including a touch sensor user interface switch
The present invention, according to a preferred embodiment, is directed to portable electronic devices which operate on exhaustible power sources, for example, batteries. The electronic devices of...
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7471049 |
Optical element driving circuit
Optical element driving circuits flexibly configure energy sources to cause a flash tube to produce illumination at one of multiple output intensities. The driving circuits allow a single strobe...
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7466082 |
Electronic circuit reducing and boosting voltage for controlling LED current
An electronic circuit comprises a switching voltage boosting circuit and a current regulating circuit for controlling current flowing through a solid state light source. A control circuit controls...
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7456586 |
Voltage controlled light source and image presentation device using the same
A device (300) includes a driver circuit (200) having a field effect transistor (FET) (30), acting as a current sink, a current sense network (10), an operational amplifier (opamp) (20), and a...
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7449839 |
Structure of LED lighting chain
A LED lighting chain is disclosed to include a front plug, a rear plug, an AC-DC converter formed of four rectifying diodes, and a LED serial set, wherein the LED serial set has a voltage dropping...
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7439944 |
Light emitting diode multiphase driver circuit and method
A method and a circuit for driving light emitting diodes (LEDs) in multiphase are provided. A string of LEDs divided into groups connected to each other in series is provided. Each group is coupled...
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7420332 |
LED lighting device
A first LED array including a first capacitor, LED blocks, and a second capacitor that are connected in series with each other, a second LED array having a similar configuration to the first LED...
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7394205 |
Power supply system method of use
A power supply system is provided that includes a power supply and at least one energy storage capacitor bank. A voltage monitor is coupled to the power supply and the energy storage capacitor...
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7375471 |
Charging circuit
A charging circuit has a battery 12, switching element 14, and resistor 16 for current detection arranged on the primary side of transformer 10. Diode 18 and capacitor 20 for storing electric power...
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7354174 |
Energy efficient festive lamp
The present invention relates to a novel energy saving decorative festive lamp that is ideally suited for use in clubs, restaurants, or decorative applications, where specialized lighting, such as...
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7336037 |
Intelligent electrical switching device
The present invention, according to a preferred embodiment, is directed to portable electronic devices which operate on exhaustible power sources, for example, batteries. The electronic devices of...
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7333027 |
Power supply for LED signal
A power supply for a Light Emitting Diode (LED) traffic signal that controls the light intensity. The light intensity conforms to a predetermined pattern based on the input voltage root mean square...
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7315298 |
Apparatus for controlling CCFL and method for operating the same
A flashing apparatus controlled by an audio signal on a motherboard and a method for the same is proposed. The flashing apparatus has at least one cold cathode fluorescent lamp (CCFL), a...
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7315036 |
Multifunction multi-spectrum signalling device
A multifunction multi-spectrum signalling device comprising at least one source of electromagnetic radiation such as an LED which emits radiation according to predefined or programmable user...
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7295105 |
Turn indicator unit for a relay-controlled flasher
A turn indicator unit includes a light source, a matching module, and a current interrupter. The light source is coupled across an output side of a flasher. The matching module is coupled across...
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