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Patent # Description
US-7,994,758 System and method for improving efficiency of a power factor correction boost pre-regulator
A power supply device comprises a driver circuit, a transistor switch, and a first transistor. The driver circuit is configured to provide a stable driving...
US-7,994,757 DC-DC converter
To securely detect the short-circuited state of a rectifier without detecting current and to protect a switching device in a DC-DC converter, in a state in...
US-7,994,756 Power distribution circuit for use in a portable telecommunications device
A power distribution circuit for use in a personal telecommunications device comprises a switched mode power supply configured to convert an input voltage and...
US-7,994,755 System, method, and article of manufacture for determining an estimated battery cell module state
A system, a method, and an article of manufacture for determining an estimated battery cell module state indicative of a state of a battery cell module of a...
US-7,994,754 Battery charging apparatus, battery pack, battery charging system, and battery charging method
A battery pack charging method and battery charging apparatus including: a plurality of charge units which charge respective battery cells of the battery pack,...
US-7,994,753 Portable communication apparatus and a battery pack
A battery pack has a case for storing a battery can, and a metal plane made of a conductive material and connected to the battery can in high frequency is...
US-7,994,752 Contactless battery charging apparel
A sequential power transmission between a portable user-carried battery and first and second independent accessories. At least one primary inductive coupling...
US-7,994,751 Fuel cell power supply device
A fuel cell power supply device capable of externally supplying electric power in a stable manner is provided. The fuel cell power supply device includes a fuel...
US-7,994,750 Systems and methods for controlling a converter for powering a load
Embodiments of systems and methods for powering a load are provided. In one embodiment, a method may include providing a power converter comprising electrical...
US-7,994,749 Multiple-rotation absolute-value encoder of geared motor
A multiple-rotation absolute-value encoder of a geared motor, wherein the geared motor (10) reduces the rotational speed of a motor shaft (12) and takes it out...
US-7,994,748 Drive control system of an electric vehicle
The object of the present invention is provide a drive control system of an electric vehicle that can prevent overshoot of the amount of slip. The drive control...
US-7,994,747 Suppressing phased motor voltage transients on disconnect
A clamping circuit is included in a phased motor control circuit, particularly on an electrical connection connected to at least one electrostatic discharge...
US-7,994,746 Motor control method and apparatus thereof
A motor controlling method and apparatus thereof are provided. The control method includes the steps of receiving a switching phase signal of coil while the...
US-7,994,745 Power supply device for vehicles
A power supply device for vehicles, output units (10a, 10b) thereof are connected to a motor (5), includes a fuel cell (1) which is connected to the output...
US-7,994,744 Method of controlling speed of brushless motor of ceiling fan and the circuit thereof
The present invention relates to a method and a circuit of controlling a speed of a brushless motor of a ceiling fan. The circuit includes a motor PWM duty...
US-7,994,743 Device for moving a first furniture part relative to a second furniture part, and a piece of furniture
A device is proposed for moving a first furniture part relative to a second furniture part, using a drive unit, by means of which the first furniture part, can...
US-7,994,742 Position measurement using magnetic fields
A position sensing system includes a member movable along a path, the member having an elongated magnet extending along the path, the magnetic field orientation...
US-7,994,741 Vibration device
The present invention pertains to vibration devices that do not require a rotating mass. In accordance with aspects of the invention, a coil causes a plunger to...
US-7,994,740 Betatron with a removable accelerator block
A betatron is provided, particularly in an x-ray inspection station, comprising an accelerator block that is provided with a rotationally symmetrical inner yoke...
US-7,994,739 Internal injection betatron
A betatron magnet having at least one electron injector positioned approximate an inside of a radius of a betatron orbit, the betatron magnet further includes a...
US-7,994,738 Display driving circuit
A display driving circuit includes a temperature compensation adjustment circuit, a control circuit, a full bridge circuit, and a transformation circuit. The...
US-7,994,737 Drive circuit of DC/DC converter, light emitting apparatus and electronic device using the same
A drive circuit controls the on/off state of a switching transistor of a DC/DC converter. A first resistor is provided on a path of current flowing through a...
US-7,994,736 Cold cathode fluorescent lamp inverter apparatus
A cold cathode fluorescent lamp inverter apparatus includes a series circuit connected to a DC power source and including first and second switching elements, a...
US-7,994,735 Solar-controlled light device
A solar-controlled light device with a circuit-control having a phototransistor, a first resistor, and a first transistor connected to a storage unit, to a...
US-7,994,734 Circuit arrangement for operation of discharge lamps, and method for operation of discharge lamps
A circuit arrangement for operating a discharge lamp, wherein the circuit arrangement comprises a commutation device, which has an input which is coupled to a...
US-7,994,733 Discharge lamp lighting device and light fixture
When the starting of the discharge lamp has been detected at least once, the control circuit increases the number of repetitions of a period while the high...
US-7,994,732 Intensity changing with reduced flicker for digitally-controlled lighting
Changing light source intensity is disclosed. A command intensity is received for a light source, wherein the light source has a current intensity, and wherein...
US-7,994,731 Universal input voltage device
A universal input voltage device is presented which may receive a wide range of regulated and unregulated input voltages, both DC and a wide range of variable...
US-7,994,730 Pulse width modulation (PWM) closed loop LED current driver in an embedded system
Methods and systems for providing stable and accurate low noise DC reference voltage are described. In the described embodiments, a feedback controlled DC...
US-7,994,729 Optical element driving circuit
An optical element driving circuit flexibly configures energy sources to cause illumination with an optical output element, such as a flash lamp. The energy...
US-7,994,728 Boost driver circuit with fast discharging function
The present invention discloses a boost driver circuit which converts an input voltage to an output voltage and supplies it to a load, the boost driver circuit...
US-7,994,727 LED driving arrangement
A circuit for driving LEDs includes: --a transformer with a secondary winding for driving the LEDs and a primary winding, --a half-bridge arrangement fed with...
US-7,994,726 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,...
US-7,994,725 Floating switch controlling LED array segment
A control circuit used in a lamp system. The lamp system has a first and a second light emitting diode (LED) connected together in series. The control circuit...
US-7,994,724 Inductive plasma applicator
An inductive plasma applicator comprises a ferromagnetic inductively coupled source and an electrode with a hole pattern centered with respect to the plasma...
US-7,994,723 Lighting system and method for controlling a plurality of light sources
A lighting system, a lighting unit and a method for controlling a plurality of light sources are described. A lighting system comprises an intelligent...
US-7,994,722 Energy saving control for a fluorescent light in a merchandising machine and a method of retrofitting the...
An energy saving control 40 for a fluorescent light which is easily installed in an existing merchandising machine 10 and a method of retrofitting the energy...
US-7,994,721 Plasma lamp and methods using a waveguide body and protruding bulb
A plasma lamp for an electrodeless plasma lamp having a dielectric waveguide body and a bulb positioned, at least in part, in the waveguide body and having at...
US-7,994,720 High pressure discharge lamp containing a getter device
A miniaturized high pressure discharge lamp containing a getter device is provided in which the getter device is positioned in such a way as to minimize or...
US-7,994,719 Plasma display panel with improved luminance
A back face panel in a plasma display panel is provided with barrier-rib portions, fluorescent barrier-rib portions including a mixed material of a barrier-rib...
US-7,994,718 Plasma display panel
A plasma display panel including a front panel including front glass substrate, a display electrode formed on the substrate, a dielectric layer covering the...
US-7,994,717 Plasma display panel and plasma display apparatus using the same
A high-luminance plasma display panel has a plurality of discharge cells including a phosphor film emitting visible rays by excitation caused by ultraviolet...
US-7,994,716 Impact and color resistant organic electroluminescent display panel
In the present invention, an organic EL device, which includes first and second display electrodes and at least one organic functional layer sandwiched between...
US-7,994,715 Organic light-emitting component with an antenna coil
An organic light-emitting component, having a substrate, a first electrode arranged on the substrate, a layer stack that is arranged on the first electrode and...
US-7,994,714 Display device with chiplets and light shields
A light-emitting diode display device includes a transparent substrate; a plurality of chiplets located over the substrate between a transparent electrode and...
US-7,994,713 Organic light emitting diode and method of fabricating the same
An organic light emitting diode (OLED) and a method of fabricating the same are provided. In the OLED, a second electron transport layer having an absolute...
US-7,994,712 Organic light emitting display device having one or more color presenting pixels each with spaced apart color...
An organic light emitting device includes a first pixel displaying a first color, a second pixel adjacent to the first pixel and displaying a second color, and...
US-7,994,711 Light emitting device and manufacturing method thereof
An active matrix light emitting device of which luminance characteristic does not vary among light emitting elements of respective pixels, and which can be...
US-7,994,710 Organic light emitting diode display
A pixel of an OLED display includes: a thin film transistor (TFT) including a gate electrode, a source electrode, and a drain electrode; a planarization layer...
US-7,994,709 OLED device employing a metal thin-film connected to a high-current cable
An interconnection arrangement for interconnecting a high-current carrying cable with a metal thin-film (3, 4) on a transparent and insulating substrate (1)....
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