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| Number | Title | Issue Date |
| 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. ... | 03/13/2012 |
| 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 dividing circuit 3, and a counting memor... | 11/08/2011 |
| 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 method involves measuring the battery voltage before and after a flas... | 10/18/2011 |
| 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 to control electrical flow from the power source to the light source.... | 09/06/2011 |
| 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 circuit and a triggering circuit. One terminal of the charging circuit ... | 08/16/2011 |
| 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 the present invention comprise at least one signal switch and a micro... | 08/09/2011 |
| 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 switch. The retrofit module includes a logical control device which measure... | 09/21/2010 |
| 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 the present invention comprise at least one signal switch and a micro... | 08/24/2010 |
| 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 circuit reduces the stresses placed on the lamp bulb when it is turned... | 05/25/2010 |
| 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 flag. This invention can normally show light in a color which matches the... | 03/30/2010 |
| 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 rate, with control means adapted to detect any light-induced signal f... | 03/16/2010 |
| 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 boost-buck circuitry to allow the internal rechargeable flashlight battery to... | 01/19/2010 |
| 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 method involves measuring the battery voltage before and after a flas... | 12/15/2009 |
| 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 of the exposed charging contacts from the rechargeable power supply ... | 10/27/2009 |
| 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 selectively operating the flashlight in at least three different modes. The... | 08/25/2009 |
| 7579782 | 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 of the exposed charging contacts from the rechargeable power supply ... | 08/25/2009 |
| 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 the present invention comprise at least one signal switch and a micro... | 03/03/2009 |
| 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 the current regulating circuit and the switching voltage boosting cir... | 12/16/2008 |
| 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 device formed of a resistance and two capacitors so arranged that cha... | 11/11/2008 |
| 7443101 | Intelligent electrical switching device including a touch sensor 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 the present invention comprise at least one signal switch and a micro... | 10/28/2008 |
| 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 to ground through separate conductive paths. A phase switch is provi... | 10/21/2008 |
| 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 array, and a third LED array having a similar configuration to the firs... | 09/02/2008 |
| 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 bank. A feedback control is coupled to the power supply. The feedback con... | 07/01/2008 |
| 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 are arranged on the second... | 05/20/2008 |
| 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 rapid flashing or frequent starts, is required. It may be used with h... | 04/08/2008 |
| 7352137 | Controlling color temperature of lighting fixture A method for controlling the color temperature of a lighting fixture, and a lighting fixture, whereby the lighting fixture is implemented using differently colored light emitting diodes. The method comprises steps of generating light by differently colored light emi... | 04/01/2008 |
| 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 the present invention comprise at least one signal switch and a micro... | 02/26/2008 |
| 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 value (Vrms). The input voltage is changed by acting on t... | 02/19/2008 |
| 7329970 | Touch sensor and location indicator circuits An electronic circuit for use with an exhaustible power source and load such as a light bulb, a radio or motor, includes a microchip with an input that transmits a signal to the microchip when the load is activated or deactivated. The input does not form a serial li... | 02/12/2008 |
| 7318661 | Universal light emitting illumination device and method Disclosed is a method and apparatus for providing a light emitting diode and driving circuitry integrated into a component module that will retrofit common incandescent lightbulb applications. The disclosed embodiments will perform with high efficiency at a wide ope... | 01/15/2008 |
| 7317287 | Circuit for an LED array A circuit arrangement for an LED array having two or more parallel-connected LED chains (LK1, LK2, LK3), in each of which at least one LED (2) is arranged and, when there are two or more LEDs (2), the latter are connected in series... | 01/08/2008 |
| 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 selectable instruction sets is disclosed. Reversal of the polarity of the d... | 01/01/2008 |
| 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 motherboard and a controller. The CCFL is connected to a high voltage cable and... | 01/01/2008 |
| 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 the light source. The current interrupter is coupled between the light ... | 11/13/2007 |
| 7291939 | Two wire touch sensor interface A touch sensor interfaces with a control system or controlled device using two wires. The output of the touch sensor controls an output switch. ... | 11/06/2007 |
| 7287873 | Hermetically sealed flashlight assembly A lighting assembly that incorporates a high brightness LED in a compact assembly that is sealed and sufficiently durable for a continuous operational range of between 350 feet below sea level and 35,000 feet above sea level. Further, the flashlight of the present i... | 10/30/2007 |
| 7288086 | High-efficiency, side-pumped diode laser system An apparatus for cutting or ablating hard tissue, includes an optical cavity; a gain medium disposed within the optical cavity; a diode light pump disposed within the optical cavity and optically aligned to light pump the gain medium to generate laser light. The gen... | 10/30/2007 |
| 7280375 | Circuit arrangement for operating at least one light-emitting diode A circuit arrangement is for operating at least one light-emitting diode LED in an electrical circuit at a service voltage greater than the forward voltage of the at least one light-emitting diode. The light-emitting diode is PWM-controlled. The circuit includes rea... | 10/09/2007 |
| 7276857 | Methods and apparatus for an improved amplifier for driving a non-linear load Methods and apparatus are provided for an amplifier for use with a nonlinear load. In one embodiment, a method is provided for driving a flash lamp. The method comprises providing an amplifier having a resonant reset topology, coupling an output of the amplifier to ... | 10/02/2007 |
| 7275844 | Generator powered bicycle headlamp and electrical circuit A bicycle headlamp including: a rotor having a plurality of magnet plates attached to spokes of a bicycle wheel, each magnet plate including a plurality of magnets disposed at regular circumferential spacings with alternating south and north poles; and a stator incl... | 10/02/2007 |
