Three Or More Load Devices Connected Between Diverse Pairs Of Paired Conductors Patents (Class 315/184)
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Patent number: 12111042Abstract: Certain embodiments of the disclosed technology include a decorative lighting system that can be integrated with an artificial tree. The decorative lighting system may include a white light emitting diode (LED) light string and a variable-color LED light string. The variable-color LED light string may employ LED lamps having embedded Red, Green, and Blue (RGB) LEDs. The RGB LED lamps may include an embedded integrated circuit (IC) configured to communicate with and control the energizing of each of the corresponding RGB LEDs to create a multitude of colors and color combinations that can vary with time to create a light show. An electronic controller in communication with the LED lamps may allow a user to select the mode for the light show and further may provide a periodic reset signal to restart or re-synchronize the light show.Type: GrantFiled: October 3, 2022Date of Patent: October 8, 2024Assignee: POLYGROUP MACAU LIMITED (BVI)Inventors: Chi Yin Alan Leung, Chi Kin Samuel Kwok
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Publication number: 20140340295Abstract: A light emitting diode (LED) backlight driving circuit includes a power supply, an LED light bar, and a constant current driving chip that adjusts brightness of the LED light bar. The constant current driving chip receives the PWM dimming signal. N boost units are connected in series between the power supply and the LED light bar, and the N boost units are connected in parallel with each other. Comparing units are correspondingly coupled to control ends of one or more of (N?1) boost units. When a duty ratio of the PWM dimming signal is less than a preset threshold, the comparing unit drives a corresponding boost unit to turn off. N is an integer greater than or equal to 2.Type: ApplicationFiled: June 28, 2013Publication date: November 20, 2014Inventors: Hua Zhang, Fei Li
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Patent number: 8766289Abstract: Disclosed is a light emitting device including: a light emitting structure including a plurality of light emitting regions including a first semiconductor layer, an active layer and a second semiconductor layer; a first electrode unit disposed on the first semiconductor layer in one of the light emitting regions; a second electrode unit disposed on the second semiconductor layer in another of the light emitting regions; an intermediate pad disposed on the second semiconductor layer in at least still another of the light emitting regions; and at least one connection electrode to sequentially connect the light emitting regions in series, wherein the light emitting regions connected in series are divided into 1st to ith light emitting region groups and areas of light emitting regions that belong to different groups are different (where 1<i?j, each of i and j is a natural number, and j is a last light emitting region group).Type: GrantFiled: October 25, 2012Date of Patent: July 1, 2014Assignee: LG Innotek Co., Ltd.Inventors: Sung Kyoon Kim, Yun Kyung Oh, Sung Ho Choo
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Patent number: 8669568Abstract: A light emitting device includes a light emitting unit and a submount. The light emitting unit has a plurality of light emitting diodes (LEDs), and the submount has a plurality of conductive contacts on a side thereof. The LEDs are coupled to the conductive contacts in various electrical connection manners, such that the LEDs are connected in series or/and in parallel.Type: GrantFiled: January 21, 2011Date of Patent: March 11, 2014Assignee: InterLight Optotech CorporationInventor: Hwa Su
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Publication number: 20130181618Abstract: The present invention overcomes image defects such as the brightness inclination or smears by reducing the line resistance of a power source bus line which supplies electricity to organic EL elements. A plurality of pixels which are arranged in a matrix array is connected to power source lines, and the plurality of power source lines are connected to a power source bus line. Both ends of the power source bus line are connected to a power source part via a FPC. By supplying electricity to both ends of the power source bus line from the power source part, the line resistance of the power source bus line can be reduced.Type: ApplicationFiled: January 3, 2013Publication date: July 18, 2013Applicants: Panasonic Liquid Crystal Display Co., Ltd., Hitachi Displays, Ltd.Inventors: Naoki TOKUDA, Hiroshi KAGEYAMA, Masamitsu FURUIE
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Patent number: 8373360Abstract: A lighting control system and an LED lamp for use with the lighting control system are provided. In one embodiment, the LED lamp includes a color LED including a red LED, a green LED, and a blue LED, and a lamp contact having a first contact section, a second contact section, and a third contact section, each of the first contact section, the second contact section, and the third contact section including a positive contact and a negative contact, wherein the first contact section is electrically connected to the red LED, the second contact section is electrically connected to the green LED, and the third contact section is electrically connected to the blue LED. The lighting control system may include an LED driver unit configured to provide independent electrical connection with each of the contact sections of the LED lamp.Type: GrantFiled: September 1, 2009Date of Patent: February 12, 2013Assignee: Hong Kong Applied Science and Technology Research Institute Co. Ltd.Inventors: Chun Kai Leung, Kai Chiu Wu, Tik Shun Leung, Kin Cheong Li, Ming Lu
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Patent number: 7973489Abstract: A lighting system for illuminating a chamber in a building includes a lighting fixture suitable for being mounted onto a surface of the chamber, so that light emitted by at least one CCFL device mechanically supported by the fixture illuminates the chamber. The one CCFL device includes at least one transformer. A driver adapted to be connected to a surface of the chamber is capable of converting input power from a power source to an AC power having a voltage in the range of about 5-400 volts and a current at a frequency in the range of about 1kc-100 kc. The at least one transformer is suitable for converting the AC power to an output power suitable for operating the at least one CCFL, causing the at least one CCFL to emit light.Type: GrantFiled: November 2, 2007Date of Patent: July 5, 2011Assignee: TBT ASSET Management International LimitedInventors: Victor Lam, Ge Shichao
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Patent number: 7659675Abstract: The light sources for illuminating the stope support at a longwall face are operated at low voltage, connected to the control network device, for low voltage supply of the system controllers. LEDs are particularly suitable as light sources. Measures for avoiding an impairment of the function of the system controllers are disclosed.Type: GrantFiled: April 15, 2004Date of Patent: February 9, 2010Assignee: Tiefenbach Control Systems GmbHInventor: Willi Kussel
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Patent number: 7131748Abstract: A decorative lighting apparatus includes a decorative light strand having a plurality of addressable color-controllable red-green-blue (RGB) light-emitting diode (LED) nodes positioned therealong; a decorating selector which provides a plurality of user-selectable switch settings; control circuitry; and memory. The control circuitry selects, from the memory, stored holiday color data associated with a user-selectable switch setting and sends the holiday color data over one or more data lines to addressable color-controllable RGB LED nodes associated with LED node address data. Preferably, the plurality of holiday color schemes include color schemes for most major U.S. holidays including Christmas, Valentine's Day, St. Patrick's Day, Easter, Independence Day, and Halloween.Type: GrantFiled: January 15, 2004Date of Patent: November 7, 2006Assignee: Year-Round Creations, LLCInventors: Dennis Michael Kazar, John Jeffery Oskorep
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Patent number: 5434476Abstract: Circuitry is disclosed for operating with no stroboscopic effects at least three fluorescent lamps connected to a single source of single phase alternating voltage. In order to suppress the stroboscopic effects, the first lamp circuit (1) is connected in the usual way to both conductors (S;Mp) of the source of single phase alternating voltage; a series oscillating circuit (4) composed of an inductive resistor (L) and a capacitor(C) is arranged in parallel to the first lamp circuit; the second lamp circuit (2) is connected between a conductor (S) of the source of single phase alternating voltage the point of connection (Vp) between the inductive resistor (L) and the capacitor of the series oscillating circuit (4); and the third lamp circuit (3) is connected between said point of connection (Vp) and the other conductor (Mp) of the source of single phase voltage.Type: GrantFiled: April 28, 1994Date of Patent: July 18, 1995Inventor: Harald Franke
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Patent number: 5043636Abstract: The present invention encompasses a high voltage switch utilizing first and second terminal electrodes and an intermediate electrode disposed therebetween. A high voltage pulse, applied to the intermediate electrode, initiates sequential overvoltaging of the region between one of the terminal electrodes and the intermediate electrode and, then between the intermediate electrode and the other electrode; thereby permitting electrical current to flow between the terminal electrodes. The geometry of the electrodes is chosen so as to yield a field enhancement factor between each region which is sufficiently low to permit highly reliable, predictable, and controllable sequential electrical breakdown.Type: GrantFiled: July 28, 1989Date of Patent: August 27, 1991Assignee: Summit Technology, Inc.Inventors: Peter J. Klopotek, Timothy J. Bell
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Patent number: 4958102Abstract: A three way lamp having two gas discharge light tubes mounted on the same housing having three terminals arranged thereon as provided on a three-way incandescent lamp.Type: GrantFiled: November 4, 1987Date of Patent: September 18, 1990Assignee: North American Philips CorporationInventors: William E. Wilson, Edward W. Morton, Daniel W. O'Mullan
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Patent number: 4748368Abstract: A three way lamp having two gas discharge light tubes mounted on the same housing in a light-transmitting bulb.Type: GrantFiled: December 27, 1984Date of Patent: May 31, 1988Assignee: North American Philips Lighting CorporationInventors: William E. Wilson, Edward W. Morton, Daniel W. O'Mullan
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Patent number: 4688154Abstract: Subject track lighting system comprises a more-or-less regular lighting track having at least two pairs of track conductors. Of these track conductors, an initial pair carries the regular 120 Volt/60 Hz power line voltage. Plugged into the track and connecting with the initial pair of track conductors is one or more voltage-conditioning adapters--with each such adapter receiving its input voltage from the initial pair of track conductors and providing its conditioned output voltage to one of the other pairs of track conductors. Thus, depending upon the particular functions provided by the adapters, the different pairs of track conductors may be used in independently different ways. For instance, with one adapter being a frequency converter with an output voltage of 12 Volt/30 kHz, the pair of track conductors to which its output is connected may be used directly with low-voltage Halogen lamps--while ordinary 120 Volt incandescent lamps may simultaneously be used with the initial pair of track conductors.Type: GrantFiled: October 15, 1984Date of Patent: August 18, 1987Inventor: Ole K. Nilssen
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Patent number: 4360765Abstract: A control circuit for a glow plug assembly serving as an engine preheating means is designed so as to effect a temperature control in harmony with the specified position established by selective operation of a key switch having three switching positions, i.e., OFF, ON and START positions.Type: GrantFiled: February 25, 1981Date of Patent: November 23, 1982Assignee: Diesel Kiki Kabushiki KaishaInventors: Yutaka Kubota, Hitoshi Sugimoto