Patents by Inventor Yongchuan LI
Yongchuan LI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20190239303Abstract: A driver circuit for controlling brightness of a set of light-emitting diodes. The driver circuit includes a switch unit for providing n first control signals, a lighting control unit for sending a second signal, a control circuit unit coupled to the switch unit and the lighting control unit and used to send a third control signal according to the n first control signal and the second control signal, an optical coupler for generating a fourth control signal according to the third control signal, and a power control unit for enabling the light-emitting diodes according to the fourth control signal. The n first control signals and the second control signal are both adjustable.Type: ApplicationFiled: December 28, 2018Publication date: August 1, 2019Inventor: Yongchuan Li
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Publication number: 20190239312Abstract: A light device driving system includes a voltage source managing module, a duty cycle adjusting module, a control integrated circuit, a power outputting module, a passive lighting device and a voltage/current output control module. The voltage source managing module generates an input voltage. The duty cycle adjusting module adjusts a duty cycle of a phase-width modulation signal of the light device driving system according to a voltage feedback signal. The control integrated circuit generates the phase-width modulation signal based on the adjusted duty cycle. The voltage/current output control module generates the voltage feedback signal according to the output voltage and a voltage dimming signal and configured to forward the voltage feedback signal to the duty cycle adjusting module.Type: ApplicationFiled: December 28, 2018Publication date: August 1, 2019Inventor: Yongchuan Li
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Publication number: 20190239304Abstract: A PWM signal generating system comprising: a PWM signal generating circuit, configured to generate a PWM signal; a control IC, configured to control a PWM ratio of the PWM signal via controlling the PWM signal generating circuit; a phase cutting dimmer, configured to output a phase cutting signal to the control IC according to a phase of an input signal; a current detecting circuit, configured to provide a detect current corresponding to the PWM ratio; and a voltage level dimmer, configured to generate a preliminary PWM ratio control signal corresponding to an input voltage level. The control IC controls the PWM ratio to correspond to the phase of the input signal, according to the detect current in a first mode. The control IC controls the PWM ratio according to the preliminary PWM ratio control signal in a second mode.Type: ApplicationFiled: December 28, 2018Publication date: August 1, 2019Inventor: Yongchuan Li
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Publication number: 20190228923Abstract: A retrofit switch apparatus is designed to pair with a traditional switch device that has a traditional switch for accepting a first user manual operation to control a target device connected to the traditional switch device with an electrical wire. The retrofit switch apparatus has a cover body, a control cover, a control decoder, and a wireless transmitter. The cover body covers the traditional switch device. The control decoder and the wireless transmitter are disposed in the cover body.Type: ApplicationFiled: January 24, 2018Publication date: July 25, 2019Inventor: Yongchuan Li
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Publication number: 20190211993Abstract: A LED apparatus has a LED plate, a lens plate, a cup body, a driver plate and two metal pins. The lens plate has a central lens and a plurality of micro optical structures. The cup body has a dome portion, a tube portion and a bottom portion. The dome portion and the tube portion are manufactured together as a single body. A portion of light emitting from the LED plate runs through the central lens of the lens plate to form a focus light beam and another portion of light emitting from the LED modules running through the plurality of micro optical structures to form soft light. Two input terminals of the driver plate are inserted into the two metal pins.Type: ApplicationFiled: March 18, 2019Publication date: July 11, 2019Inventor: Yongchuan Li
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Patent number: 10344961Abstract: An optical apparatus has a LED plate, a lens plate, a cup body, a driver plate and two metal pins. The lens plate has a central lens and a plurality of micro optical structures. The cup body has a dome portion, a tube portion and a bottom portion. The dome portion and the tube portion are manufactured together as a single body. A portion of light emitting from the LED plate runs through the central lens of the lens plate to form a focus light beam and another portion of light emitting from the LED modules running through the plurality of micro optical structures to form soft light. Two input terminals of the driver plate are inserted into the two metal pins.Type: GrantFiled: August 17, 2017Date of Patent: July 9, 2019Assignee: LEEDARSON AMERICA INC.Inventor: Yongchuan Li
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Patent number: 10330263Abstract: A light bulb apparatus includes a head cup, a bottom support, multiple light strips and a bulb shell. The head cup is connected to an external power source. The bottom support is extended from the head cup. Each light strip has a top end and a bottom end. The bottom ends of the light strips are connected to the bottom support. The top ends of the light strips form a top polygonal shape and the bottom ends of the light strips form a bottom polygonal shape. The bottom polygonal shape has a bigger area size than the top polygonal shape. Each light strip has a skewed angle with respect to a middle axis perpendicular to the bottom shape.Type: GrantFiled: February 26, 2018Date of Patent: June 25, 2019Assignee: LEEDARSON AMERICA INC.Inventor: Yongchuan Li
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Patent number: 10323806Abstract: An assembly light apparatus has a LED module, a light box, a driver box. The driver box is installed in a cavity of a ceiling via a fixing structure. The light box contains the LED module. The light box has an output opening and a back cover. The back cover has a first electrical terminal and a second electrical terminal connected to a first electrode and a second electrode of the driver box respectively. The light box and the driver box are detachably connected with a light box connector and a driver box connector.Type: GrantFiled: March 29, 2018Date of Patent: June 18, 2019Assignee: LEEDARSON AMERICA INC.Inventor: Yongchuan Li
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Publication number: 20190139719Abstract: A retrofit switch apparatus is designed to pair with a traditional switch device that has a traditional switch for accepting a first user manual operation to control a target device connected to the traditional switch device with an electrical wire. The traditional switch device has a connecting structure. The retrofit switch apparatus has an attaching device, a cover body, a replacement switch and a wireless controller. The attaching device is attached to the connecting structure of the traditional switch device. The wireless controller wirelessly controls the target device. The replacement switch and the wireless component are not overlapped to each other vertically with respect to the surface cover of the traditional switch device.Type: ApplicationFiled: November 9, 2017Publication date: May 9, 2019Inventor: Yongchuan Li
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Publication number: 20190131081Abstract: A retrofit switch apparatus is designed to be attached to a traditional switch device. The traditional switch device has a traditional switch mounted on a traditional switch cover surface of the traditional switch device used for accepting a first user manual operation to control a target device. The retrofit switch apparatus has an attaching device, a retrofit housing, a mechanical switch and a wireless controller. The attaching device is used for attaching to the traditional switch cover surface. The retrofit housing provides a containing space for covering the traditional switch. The mechanical switch receives a second user manual operation the same as the first user manual operation.Type: ApplicationFiled: October 30, 2017Publication date: May 2, 2019Inventor: Yongchuan Li
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Publication number: 20190131082Abstract: A retrofit switch apparatus is attached to a traditional switch device. The traditional switch device has a traditional switch for accepting a first user manual operation to control a target. The retrofit switch apparatus includes an attaching device, a retrofit housing and a touch module. The attaching device is attached to the traditional switch device. The retrofit housing provides a containing space for covering the traditional switch. The touch module has a touch surface and a driver circuit. The touch surface receives a second user manual operation processed by the driver circuit.Type: ApplicationFiled: October 30, 2017Publication date: May 2, 2019Inventor: Yongchuan Li
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Publication number: 20190131083Abstract: A retrofit switch apparatus is designed to pair with a traditional switch device that has a traditional switch for accepting a first user manual operation to control a target device connected to the traditional switch device with an electrical wire. The traditional switch device has a connecting structure. The retrofit switch apparatus has an attaching device, a retrofit housing and a control circuit. The attaching device is attached to the connecting structure of the traditional switch device. The control circuit wirelessly controls the target device.Type: ApplicationFiled: October 30, 2017Publication date: May 2, 2019Inventor: Yongchuan Li
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Patent number: 10274157Abstract: A LED apparatus has a LED plate, a lens plate, a cup body, a driver plate and two metal pins. The lens plate has a central lens and a plurality of micro optical structures. The cup body has a dome portion, a tube portion and a bottom portion. The dome portion and the tube portion are manufactured together as a single body. A portion of light emitting from the LED plate runs through the central lens of the lens plate to form a focus light beam and another portion of light emitting from the LED modules running through the plurality of micro optical structures to form soft light. Two input terminals of the driver plate are inserted into the two metal pins.Type: GrantFiled: August 17, 2017Date of Patent: April 30, 2019Assignee: LEEDARSON AMERICA INC.Inventor: Yongchuan Li
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Publication number: 20190056085Abstract: A LED apparatus has a LED plate, a lens plate, a cup body, a driver plate and two metal pins. The lens plate has a central lens and a plurality of micro optical structures. The cup body has a dome portion, a tube portion and a bottom portion. The dome portion and the tube portion are manufactured together as a single body. A portion of light emitting from the LED plate runs through the central lens of the lens plate to form a focus light beam and another portion of light emitting from the LED modules running through the plurality of micro optical structures to form soft light. Two input terminals of the driver plate are inserted into the two metal pins.Type: ApplicationFiled: August 17, 2017Publication date: February 21, 2019Inventor: Yongchuan Li
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Publication number: 20190056097Abstract: An optical apparatus has a LED plate, a lens plate, a cup body, a driver plate and two metal pins. The lens plate has a central lens and a plurality of micro optical structures. The cup body has a dome portion, a tube portion and a bottom portion. The dome portion and the tube portion are manufactured together as a single body. A portion of light emitting from the LED plate runs through the central lens of the lens plate to form a focus light beam and another portion of light emitting from the LED modules running through the plurality of micro optical structures to form soft light. Two input terminals of the driver plate are inserted into the two metal pins.Type: ApplicationFiled: August 17, 2017Publication date: February 21, 2019Inventor: Yongchuan Li
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Publication number: 20190056071Abstract: A spotlight apparatus has a LED plate, a lens plate, a cup body, a driver plate and two metal pins. The lens plate has a central lens and a plurality of micro optical structures. The cup body has a dome portion, a tube portion and a bottom portion. The dome portion and the tube portion are manufactured together as a single body. A portion of light emitting from the LED plate runs through the central lens of the lens plate to form a focus light beam and another portion of light emitting from the LED modules running through the plurality of micro optical structures to form soft light. Two input terminals of the driver plate are inserted into the two metal pins.Type: ApplicationFiled: August 17, 2017Publication date: February 21, 2019Inventor: Yongchuan Li
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Publication number: 20180369815Abstract: Disclosed is a microfluidic system based on an artificially structured acoustic field, comprising a microcavity and a ultrasonic emission device, wherein the microcavity is used to accommodate a solution containing particles, the ultrasonic emission device is used to emit ultrasound, and characterized in further comprising a phononic crystal plate placed in the microcavity, wherein the phononic crystal plate has an artificial cycle structure, and is used to modulate the acoustic field so as to control the particles. Also disclosed is a method of controlling microfluid particles based on an artificially structured acoustic field. In the particular embodiments, since a microcavity, an ultrasonic emission device and a phononic crystal plate are comprised, the ultrasonic emission device is used to emit ultrasound, and the phononic crystal plate has an artificial cycle structure, and is used to modulate the acoustic field so as to control the particles.Type: ApplicationFiled: October 10, 2015Publication date: December 27, 2018Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCESInventors: Hairong ZHENG, Fwi LI, Felyan CAI, Long MENG, Chen WANG, Chengxiang ZHANG, Weibao QIU, Yongchuan LI, Fei YAN, Lili NIU, Liufeng GENG, Chaowei XU
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Publication number: 20180328578Abstract: A LED light apparatus includes an electrical connector device for electrically connecting a light source board and a driver board. The electrical connector device comprising an input terminal and an output terminal, one end of input terminal is fixed on the driver board of the LED light and electrically connected to the driver board. The output terminal includes a conductive terminal, an elastic clipping portion, and a resistance portion, the conductive terminal includes a conductive pin, the conductive pin is fixed on the light source board and electrically connected to the light source board, the resistance portion are placed on the conductive terminal, and when assembled, the other end of the input terminal elastically touches one end of the elastic resistance portion and the resistance portion touches the other end of the resistance portion. The electrical connector of LED light owns the advantages of simple structure and high reliability.Type: ApplicationFiled: July 23, 2018Publication date: November 15, 2018Inventors: Xiaobo Chen, Yongzhe Dong, Zongjin Liu, Maojin Zeng, Daqiang Li, Yongchuan Li
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Publication number: 20180245744Abstract: A light bulb apparatus includes a head cup, a bottom support, multiple light strips and a bulb shell. The head cup is connected to an external power source. The bottom support is extended from the head cup. Each light strip has a top end and a bottom end. The bottom ends of the light strips are connected to the bottom support. The top ends of the light strips form a top polygonal shape and the bottom ends of the light strips form a bottom polygonal shape. The bottom polygonal shape has a bigger area size than the top polygonal shape. Each light strip has a skewed angle with respect to a middle axis perpendicular to the bottom shape.Type: ApplicationFiled: February 26, 2018Publication date: August 30, 2018Inventor: Yongchuan Li
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Patent number: 10060612Abstract: An electrical connector device for electrically connecting a light source board and a driver board of an LED light. The electrical connector device includes an input terminal and an output terminal, one end of input terminal is fixed on the driver board of the LED light and electrically connected to the driver board. The output terminal includes a conductive terminal, an elastic clipping portion, and a resistance portion, the conductive terminal includes a conductive pin, the conductive pin is fixed on the light source board and electrically connected to the light source board, the elastic clipping portion and the resistance portion are placed on the conductive terminal, and when assembled, the other end of the input terminal elastically touches one end of the elastic resistance portion and the resistance portion touches the other end of the resistance portion. The electrical connector of LED light owns the advantages of simple structure and high reliability.Type: GrantFiled: July 15, 2016Date of Patent: August 28, 2018Assignee: XIAMEN ECO LIGHTING CO. LTD.Inventors: Xiaobo Chen, Yongzhe Dong, Zongjin Liu, Maojin Zeng, Daqiang Li, Yongchuan Li