Bizarre Patents
Pillow with retractable umbrella
A pillow assembly having a supporting assembly and a retractable umbrella assembly that is easily transportable and allows a user to support his/her head while covering their face from sunlight.
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| Number | Title | Issue Date |
| 8111015 | Brightness-adjustable illumination driving system An illumination driving system includes a control unit and at least one base. The control unit includes a first converter and a brightness-adjustable circuit. An input AC voltage is converted into a regulated DC voltage by the first converter. The brightness-adjusta... | 02/07/2012 |
| 8111014 | Drive circuit for driving a load with constant current A drive circuit (1) for driving a load (3) comprises: a switched mode power supply (10) for supplying at the output (2a, 2b) a switched output current (IL); a controller (20) for controlling the power supply; a... | 02/07/2012 |
| 8111011 | LED luminaire with improved life and operation management A method and apparatus for adjusting the drive signal of an LED luminaire is provided and includes an LED light source assembly, an ambient sensor circuit, a comparator circuit, and a driver circuit. The ambient sensor circuit provides an ambient signal to the LED l... | 02/07/2012 |
| 8111012 | Method and firmware for controlling an inverter voltage by drive signal frequency A method and firmware for controlling an inverter voltage includes steps of receiving as input a digitized feedback signal representative of an inverter voltage that varies with frequency according to a transfer function, calculating a frequency of a digital switch ... | 02/07/2012 |
| 8111017 | Circuits and methods for controlling dimming of a light source A controller for controlling dimming of a light source includes a detection pin, an input signal pin, and a monitoring pin. The detection pin is operable for monitoring a rectified voltage and for detecting whether the rectified voltage comes from a TRIAC dimmer or ... | 02/07/2012 |
| 8111013 | Method and firmware for controlling voltage and current in a fluorescent lamp array A method and firmware for controlling voltage and current in an electrical load includes steps of calculating a numerically quantized duty cycle of a pulse-width modulated, digital switch control signal by firmware in an inverter voltage microcontroller as a functio... | 02/07/2012 |
| 8111016 | Control system for multiple fluorescent lamps The present invention is directed to an apparatus that drives a lighting system with multiple lamps. A phase shift mechanism is produced either by a digital method, an analog method, or a mixture of the two methods. In a digital method, phase shifts are generated by... | 02/07/2012 |
| 8106606 | Voltage multiple dimming control apparatus The present invention discloses a control apparatus, which not only accepts multiple dimming control signals, but also combines the signals in analog manner. By means of this, an inevitable analog to digital converter in a conventional voltage multiple dimming contr... | 01/31/2012 |
| 8106605 | Backlight control circuit An exemplary backlight control circuit includes a pulse width modulation integrated circuit (PWM IC) having a power input terminal, a power source capable of outputting an operation voltage, and a switching circuit connected between the power source and the PWM IC t... | 01/31/2012 |
| 8098028 | Control circuit and method for controlling LEDs A control circuit for control of light-emitting diodes has a first LED string (50) with at least one LED (51, 52, 53) and a first supply device (1) for supply of current to the first LED string (50). The supply device (1) has a con... | 01/17/2012 |
| 8098027 | Light-emitting device driving circuit for dynamically adjusting turn-off time length of switch A light-emitting device driving circuit and a method thereof are provided. A terminal of a light-emitting device is coupled to a supply voltage and a cathode of a diode via an inductor, and the other terminal is coupled to an anode of the diode. The light-emitting d... | 01/17/2012 |
| 8093834 | Automotive HID headlamp ballast control IC A ballast control integrated circuit for a ballast driving a high intensity discharge (HID) lamp. The control integrated circuit has a first circuit for controlling a DC to DC converter receiving a first DC voltage and providing an increased DC voltage. The first ci... | 01/10/2012 |
| 8093835 | Light emitting driver circuit with compensation and method A light emitting driver circuit, system, and method are provided. The driver circuit system and method can be implemented in various ways. An embodiment includes a bypass circuit which diverts current from the LEDs whenever a switch coupled to the LEDs incurs residu... | 01/10/2012 |
| 8093837 | Lamp ballast and an illumination apparatus A lamp ballast capable of lighting a discharge lamp and an incandescent lamp each at an optimum condition. The lamp ballast has a DC-DC converter, an inverter that converts an output of DC-DC converter into an AC power for applying the same to a lamp load, a startin... | 01/10/2012 |
| 8093833 | Method for controlling an electrical light source by pulse width modulation Disclosed is for controlling a light source by pulse width modulation of a supply voltage. The supply voltage, or a parameter dependent thereon, is measured and the pulse width is controlled as function of the measured value. The supply voltage or parameter is measu... | 01/10/2012 |
| 8093836 | Circuit arrangement and method for striking a discharge lamp A circuit arrangement for striking a discharge lamp, comprising: a drive apparatus, having an output adapted to provide a drive signal with a predeterminable frequency; an inverter, which is coupled to the output of the drive apparatus, and having an output adapted ... | 01/10/2012 |
| 8089220 | Circuit arrangement and method for operating a high-pressure discharge lamp A circuit arrangement for operating a high pressure discharge lamp includes a bridge circuit with at least two switches, a control device controlling the switches. The bridge circuit is a half-bridge circuit having exactly two switches. The control device switches o... | 01/03/2012 |
| 8089221 | Supervision of an illumination device The invention relates to an illumination device (1) with a number of light emitters, for example LEDs (L1, L2, L3, L4) of individual emission spectra. Sensor units (D1, D2, D3, D4) can produce a vector o... | 01/03/2012 |
| 8084962 | Driving circuit for LED A driving circuit for LED includes: at least one LED; a light emission driving circuit having a first PWM unit and a power converting unit generating a driving current according to a signal generated by the first PWM unit and sending the driving current to the LED; ... | 12/27/2011 |
| 8084961 | Backlight module control system and control method thereof A backlight module control system includes at least one backlight module, a driving circuit, at least one switch and a power supply module. The driving circuit is utilized for determining a driving signal to drive the backlight module. The switch is coupled between ... | 12/27/2011 |
| 8080948 | Apparatus and method for trimming an output parameter of an electronic ballast An electronic ballast includes a microprocessor which is programmed to read an external voltage value, output a signal which controls an amount of power outputted by the electronic ballast, and adjust the signal based upon a difference between the external voltage v... | 12/20/2011 |
| 8076870 | LED illumination system with multiple independent loops A LED illumination system with multiple independent loops includes an input unit provided to receive a D.C. voltage, and a plurality of light module control circuits electrically connected to the input unit. Each of the light module control circuits includes a light... | 12/13/2011 |
| 8072161 | Bi-directional light emitting diode drive circuit in pulsed power non-resonance The present invention uses capacitive, inductive, or resistive impedance to constitute the first impedance, and the capacitive and inductive impedances in parallel connection which will not produce parallel resonance to constituted the second impedance, and is chara... | 12/06/2011 |
| 8072160 | Low power non-isolated driver The present invention mainly discloses low power non-isolated driver that can be used for LED lighting and other non-isolated power supply appliance, in which the input side is connected to an AC or DC input, a PWM control circuit is connected to the buck converter ... | 12/06/2011 |
| 8072162 | Bi-direction constant current device An LED lamp includes a bi-direction constant current device coupled between a power supply and a LED load to provide stable positive and negative currents to the LED load. The bi-direction constant current device includes a pair of current sources face-to-face or ba... | 12/06/2011 |
| 8072163 | Knowledge-based driver apparatus for high lumen maintenance and end-of-life adaptation A knowledge-based driver is provided for powering a solid-state light source with a constant current, including a memory that stores lumens per amp and volts per amp performance characterizations of the light source over time, and a controller that operates in a tes... | 12/06/2011 |
| 8067904 | Electronic ballast with dimming control from power line sensing The present invention discloses an electronic ballast with dimming control from power line sensing for a fluorescent lamp, comprising: a control voltage generator, used to generate a control voltage according to a switching count of a power line; an oscillator, used... | 11/29/2011 |
| 8067902 | Electronic ballast having a symmetric topology An electronic ballast for driving a gas discharge lamp having first and second electrodes comprises an inverter circuit and a symmetric resonant tank circuit for minimizing the RFI noise produced at the electrodes of the lamp. The inverter circuit receives a substan... | 11/29/2011 |
| 8067903 | Method and driving unit for driving a gas discharge lamp Disclosed is a method for driving a gas discharge lamp in at least two operation modes, including the step of applying an alternating voltage to the gas discharge lamp, the alternating voltage having a first polarity during a first time interval and a second polarit... | 11/29/2011 |
| 8063587 | Bi-directional light emitting diode drive circuit in bi-directional power parallel resonance The present invention uses the capacitive, or inductive, or resistive impedance component to constitute the first impedance, and the parallel connected capacitive and the inductive impedance components in parallel resonance to constitute the second impedance; and is... | 11/22/2011 |
| 8063585 | Power supply system and method for the operation of an electrical load A current source arrangement, in which at least one branch, comprising a current source (1) and means (2) for the connection of an electrical load (3), is provided. A comparator (5) with transistor (7) connected downstream is conne... | 11/22/2011 |
| 8063586 | Method of driving a discharge lamp, and driving unit Disclosed is a method of driving a discharge lamp, wherein a value of pressure in the lamp is determined during operation of the lamp at a dimmed power level, a correction factor is determined based on the dimmed power level pressure value, a required power value fo... | 11/22/2011 |
| 8058821 | DC/DC converter A control circuit of a DC/DC converter is provided for supplying a driving voltage to a light emitting element. A hysteresis comparator compares a detection voltage that corresponds to the output voltage of the DC/DC converter with two threshold voltages. If the det... | 11/15/2011 |
| 8058820 | Uni-directional light emitting diode drive circuit in pulsed power parallel resonance The present invention uses the capacitive, inductive, or resistive impedance component to constitute the first impedance, and uses the inductive impedance component and capacitive impedance component which produce parallel resonance after parallel connection to cons... | 11/15/2011 |
| 8054007 | Bi-directional light emitting diode drive circuit in bi-directional power series resonance The present invention uses the capacitive impedance component to constituted the first impedance and the inductive impedance component to constituted the second impedance, which is characterized as that the first and second impedances in series connection is configu... | 11/08/2011 |
| 8054008 | Power converter The present invention includes a first DC converter converting AC voltage, into DC voltage while correcting a power factor, and a second DC converter electrically isolating the first DC converter from an LED group load, and converting the DC voltage, into a predeter... | 11/08/2011 |
| 8049440 | Uni-directional light emitting diode drive circuit in pulsed power non-resonance The present invention uses the capacitive, inductive, or resistive impedance component to constitute the first impedance, and uses the inductive impedance component and capacitive impedance component which will not produce parallel resonance after parallel connectio... | 11/01/2011 |
| 8035318 | Apparatus and method enabling fully dimmable operation of a compact fluorescent lamp An electronic ballast circuit and related method for enabling full range dimming of a gas discharge load such as a compact fluorescent lamp. ... | 10/11/2011 |
| 8035319 | Voltage sensing apparatus for power regulation and over-voltage protection of discharge lamp and method thereof The configurations of a discharge lamp system and a controlling method thereof are provided in the present invention. The proposed discharge lamp system includes a discharge lamp, a converter circuit coupled to the discharge lamp and having a switching switch, a bal... | 10/11/2011 |
| 8030857 | Backlight LED drive circuit A backlight LED drive circuit 20 includes a step-up DC/DC converter 22 for stepping up a DC power voltage based on a PWM signal and supplying the voltage to the anode of an LED device 12c, a voltage detector 24 for detecting a feed... | 10/04/2011 |
