Class / Patent application number | Description | Number of patent applications / Date published |
315136000 | Electrically operated switch controlling the signal circuit | 13 |
20090115336 | LED SIGNALING APPARATUS WITH INFRARED EMISSION - An infrared signaling apparatus is disclosed, which utilizes high intensity solid state lighting elements, such as light emitting diodes (LEDs) to provide signaling for navigational as well as search/rescue applications employing night vision equipments. | 05-07-2009 |
20090167191 | LIGHT EMITTING DEVICE - 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 memory circuit 4, to flash the light emitter 7 on and off with an on-off pattern depending on a result of the timing, signaling out information on the continuous conduction time. | 07-02-2009 |
20090267522 | PORTABLE ELECTRONIC DEVICE HAVING A PLURALITY OF LIGHT ELEMENTS AND METHOD OF ILLUMINATING SAME - A portable electronic device operable to indicate received media is disclosed. A first set of lighting units is used to indicate a received media based on an orientation of the portable electronic device. A second set of the lighting units may be activated based on a change in the orientation of the portable electronic device. | 10-29-2009 |
20090322230 | BUTTON ASSEMBLY - A button assembly includes a button, an indicating lamp, a rheostat and a switch. The button includes a transparent pressing portion. The indicating lamp is positioned in the pressing portion. The rheostat includes a base and an adjuster rotatably attached to the base. The adjuster is rotated by rotation of the button. The switch is capable of being triggered by downwardly movement of the button. | 12-31-2009 |
20110279040 | METHODS AND APPARATUS FOR CHANGING A DC SUPPLY VOLTAGE APPLIED TO A LIGHTING CIRCUIT - Methods and apparatus for changing a DC supply voltage applied to a lighting circuit are disclosed. In specific cases, a constant voltage power supply is used to power an LED lighting circuit in which there are uncertainties within the forward voltages of the LEDs, which in turn creates uncertainty with respect to the current level flowing through the LEDs. To manage these uncertainties, the current flowing through the LEDs is measured and an indication of the current level is communicated to a person who can manually adjust the DC voltage supply applied to the LED lighting apparatus by the constant voltage power supply. Alternatively, an automatic adjustment of the DC voltage supply applied to the LED lighting apparatus by the constant voltage power supply can be performed based upon the measured current level. | 11-17-2011 |
20120074849 | ILLUMINATION SYSTEM - An illumination system according to an exemplary embodiment of the present invention includes at least one light emitting apparatus including at least one light emitting module detachably coupled to the at least one light emitting apparatus, the at least one light emitting module including an information storage unit to store characteristic information of the at least one light emitting module. The at least one light emitting apparatus also includes a controller configured to detect whether the at least one light emitting module is connected to or disconnected from the at least one light emitting apparatus, and to read out the characteristic information of the at least one light emitting module according to a detection result, wherein the characteristic information includes unique identification information or absolute lifetime information of the at least one light emitting module. | 03-29-2012 |
20120176040 | INDICATOR DRIVE CIRCUIT - An indicator drive circuit includes a current mirror circuit including a first transistor located at a control side and a second transistor located at a controlled side, a current through the current mirror circuit being switched by an external control signal, a current source adapted to feed a control current to the first transistor of the current mirror circuit, and a switching element adapted to be driven by a current through the second transistor of the current mirror circuit and to switch on or off an indicator light source. The current source includes two transistors cascode-connected. | 07-12-2012 |
20120268015 | LIGHT POWER COMPENSATION DEVICE, LIGHT POWER COMPENSATION CIRCUIT, AND DETECTING MODULE - Alight power compensation circuit includes a current source to be electrically coupled to a temperature-detecting light-emitting device and providing a working current for the temperature-detecting light-emitting device, a detector unit operable to detect a forward bias voltage across the temperature-detecting light-emitting device and providing a detector voltage proportional to the forward bias voltage, a compensation voltage converting module converting the detector voltage into a compensation voltage which has a negative relation to change in the detector voltage, and a driving module converting the compensation voltage into a driving current which is proportional to the compensation voltage and which drives operation of a controlled light-emitting device. | 10-25-2012 |
20130221853 | LAMP AND SWITCH APPARATUS THEREOF - A lamp includes a lamp body, an LED light source, a storage unit, a switch apparatus, and a microprocessor. The storage unit stores a function table recording a relationship between a plurality of types of touches and a plurality of control functions. The switch apparatus includes a touch panel, a touch controller, and an indicator located under the first touch region. The touch panel generates signals in response to touches applied on thereon. The touch panel includes a first touch region and a second touch region. The touch controller receives the signals and determines the type of the touch intended. The microprocessor refers to the function table, and controls the LED light source to execute the control function and to give visual feedback when the touch panel is touched. A switch apparatus is also provided. | 08-29-2013 |
20150102727 | LED DRIVER CIRCUIT CAPABLE OF EXTENDING A LIFESPAN OF THE LED DRIVER AND REDUCING MANUFACTURING COST - An LED driver circuit includes a first driver, a second driver, a switch, a first detection module, a second detection module and a control module. The first driver provides a first driving current according to a supply voltage. The second driver provides a second driving current according to the supply voltage. The switch is selectively coupled to the first or second driver. An LED emits light according to the first or second driving current. When the switch is coupled to the first driver, the first detection module keeps detecting the first driving current and outputting a first sensing signal. When the switch is coupled to the second driver, the second detection module keeps detecting the second driving current and outputting a second sensing signal. The control module outputs a first or second control signal according to the first or second sensing signal for controlling the switch. | 04-16-2015 |
20160113097 | PROGRAMMABLE LIGHT TIMER AND A METHOD OF IMPLEMENTING A PROGRAMMABLE LIGHT TIMER - A programmable light timer for implementing a timing pattern is described. The programmable light timer comprises a display, wherein a time selected on a user interface is provided on the display; a first programmable button of the plurality of programmable buttons on the user interface; and up and down keys on the user interface, wherein the up and down keys enable selecting an on time of the timing pattern to be implemented when the first programmable button is selected to be used during operation of the programmable light timer. A method of implementing a timing pattern on a programmable light timer is also described. | 04-21-2016 |
20160167575 | TWO STAGE INDICATOR DIMMING CIRCUIT CONTROLLED BY PWM BACKLIGHTING BACK FEED AND BACKLIGHT CONTROL | 06-16-2016 |
20160192457 | MONITORING AND CONTROL DEVICE AND METHOD FOR AN ILLUMINATION APPARATUS - Disclosed is a monitoring and control device, applicable to an illumination apparatus. The illumination apparatus includes a lighting unit which outputs a signal representative of a status of the lighting unit. The illumination apparatus includes an apparatus identifier. The illumination apparatus includes: a monitoring circuit electrically coupled to the lighting unit, for receiving the signal and determining whether the illumination apparatus needs to be replaced in response to the signal satisfying a condition; a controller electrically coupled to the monitoring circuit; and a receiving/transmitting unit electrically coupled to the controller, wherein the controller controls the receiving/transmitting unit to transmit the apparatus identifier of the illumination apparatus to be replaced in response to the determination is affirmative. A method thereof is also disclosed. | 06-30-2016 |