Patents by Inventor Nai-Chen Tsai

Nai-Chen Tsai 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).

  • Patent number: 11598497
    Abstract: A light string is provided. The light string includes a plurality of light-emitting components, a first polyvinyl chloride covered wire and a second polyvinyl chloride covered wire. The light-emitting components are configured to emit light having a same color or different colors. A first polyvinyl chloride covered wire is electrically connected to a first terminal of each of the light-emitting components and a first power terminal of a power supply component. The first polyvinyl chloride covered wire receives a first voltage from the first power terminal of the power supply component. The second polyvinyl chloride covered wire is electrically connected to a second terminal of each of the light-emitting components and a second power terminal of the power supply component. The second polyvinyl chloride covered wire receives a second voltage from the second power terminal of the power supply component.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: March 7, 2023
    Assignee: Cosmo Lighting Inc.
    Inventor: Nai-Chen Tsai
  • Patent number: 11510303
    Abstract: A light string controlling device capable of boosting power is provided. One or more batteries are accommodated into a control box. A control circuit controls a power converter circuit to convert power supplied by the one or more batteries according to an amount of power required for a light string to produce a desired lighting effect. A remote controller outputs a remote control signal to the control circuit to instruct the control circuit to control the light string to produce the desired lighting effect.
    Type: Grant
    Filed: January 6, 2022
    Date of Patent: November 22, 2022
    Assignee: COSMO LIGHTING INC.
    Inventor: Nai-Chen Tsai
  • Patent number: 11306883
    Abstract: A lighting controller and a method of switching a light string between a plurality of lighting modes, and a light string assembly are provided. The lighting controller includes a control box, a switch power source circuit, and a lighting control circuit. A switching component is disposed on the control box. The switch power source circuit and the lighting control circuit are accommodated in the control box. The switch power source circuit is triggered to allow a power supply component to supply power to the light string during a predetermined time by the switching component receiving a turning-on timing trigger and allows the switching component to receive a plurality of lighting triggers. The lighting control circuit switches the light string between the plurality of lighting modes to exhibit a variable lighting effect according to the plurality of lighting triggers.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: April 19, 2022
    Assignee: Cosmo Lighting Inc.
    Inventor: Nai-Chen Tsai
  • Patent number: 11221130
    Abstract: A light string is provided. The light string at least includes a wire set and a plurality of light-emitting diode chips. A first main wire segment of a first wire and a second main wire segment of a second wire are twisted together to form a main wire set. Non-bonding segments of the first sub-wire segments and the second sub-wire segments are respectively twisted together to respectively form a plurality of sub-wire sets. The sub-wire sets are spaced from each other and extended outward in a direction away from the main wire set. The light-emitting diode chips are respectively bonded to bonding segments of the sub-wire sets and spaced from each other on the sub-wire sets.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: January 11, 2022
    Assignee: COSMO LIGHTING INC.
    Inventor: Nai-Chen Tsai
  • Publication number: 20210262624
    Abstract: A light string is provided. The light string includes a plurality of light-emitting components, a first polyvinyl chloride covered wire and a second polyvinyl chloride covered wire. The light-emitting components are configured to emit light having a same color or different colors. A first polyvinyl chloride covered wire is electrically connected to a first terminal of each of the light-emitting components and a first power terminal of a power supply component. The first polyvinyl chloride covered wire receives a first voltage from the first power terminal of the power supply component. The second polyvinyl chloride covered wire is electrically connected to a second terminal of each of the light-emitting components and a second power terminal of the power supply component. The second polyvinyl chloride covered wire receives a second voltage from the second power terminal of the power supply component.
    Type: Application
    Filed: November 10, 2020
    Publication date: August 26, 2021
    Inventor: NAI-CHEN TSAI
  • Publication number: 20210262629
    Abstract: A lighting controller and a method of switching a light string between a plurality of lighting modes, and a light string assembly are provided. The lighting controller includes a control box, a switch power source circuit, and a lighting control circuit. A switching component is disposed on the control box. The switch power source circuit and the lighting control circuit are accommodated in the control box. The switch power source circuit is triggered to allow a power supply component to supply power to the light string during a predetermined time by the switching component receiving a turning-on timing trigger and allows the switching component to receive a plurality of lighting triggers. The lighting control circuit switches the light string between the plurality of lighting modes to exhibit a variable lighting effect according to the plurality of lighting triggers.
    Type: Application
    Filed: May 19, 2020
    Publication date: August 26, 2021
    Inventor: NAI-CHEN TSAI
  • Patent number: 10993304
    Abstract: A wire and a stripping method thereof, and a light strip are provided. The stripping method includes the following steps: holding a wire by a holder, the wire including an insulation layer and a conductor covered by the insulation layer; mounting the holder on a worktable of a an optical device; and activating a light emitter of the optical device to emit a light beam irradiating onto the insulation layer to ablate a portion of the insulation layer to form at least one through hole that penetrates the insulation layer to expose a portion of the conductor.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: April 27, 2021
    Assignee: COSMO LIGHTING INC.
    Inventor: Nai-Chen Tsai
  • Patent number: 10631388
    Abstract: A power supply device is provided, which includes a plurality of battery packs and a plurality of unidirectional conductive elements. The plurality of battery packs are connected in parallel with each other and disposed toward the same direction. The unidirectional conductive elements are connected in serial to the battery packs, respectively. A positive pin of each of the unidirectional conductive elements is connected in serial to a positive terminal of the corresponding battery pack, and a negative pin of each of the unidirectional conductive elements is connected in parallel to negative pins of other unidirectional conductive elements. Therefore, the present disclosure is capable of preventing the battery packs having relatively lower voltages from being charged by the battery packs having relatively higher voltages, thereby prolonging lifetimes of batteries, and avoid from affecting power to be supplied to a power receiving circuit from the battery packs.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: April 21, 2020
    Assignee: COSMO LIGHTING INC.
    Inventor: Nai-Chen Tsai
  • Patent number: 10609800
    Abstract: A light string, an automatic assembly apparatus and an automatic assembly method thereof are provided. The method includes steps of: arranging lamp housings in a lamp housing carrier by using an assembly machine; actuating a holder to move horizontally by using the assembly machine to align light-emitting elements with accommodating spaces of the lamp housings, respectively; actuating the holder to move vertically toward the lamp housing carrier by using the assembly machine to move the light-emitting elements into the accommodating spaces to be bonded to the lamp housings, respectively; removing a first wire and a second wire together with the light-emitting elements from the holder by the assembly machine; passing the first wire and the second wire through lamp housing through holes of the lamp housings by using the assembly machine; and taking out the light string from the lamp housing carrier by using the assembly machine.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: March 31, 2020
    Assignee: COSMO LIGHTING INC.
    Inventor: Nai-Chen Tsai
  • Patent number: 10299329
    Abstract: A light string controlling circuit for single node and a method thereof are provided. The light string controlling circuit for single node includes a plurality of light-emitting elements, a power source element, a master controller and a plurality of single-node controllers. The master controller outputs a power supplying request to the power source element to instruct the power source element to supply power to the plurality of light-emitting elements sequentially. The plurality of single-node controllers are connected to the plurality of light-emitting assemblies respectively, and each of the single-node controllers outputs an emission control signal to control the luminous state of the corresponding light-emitting assemblies.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: May 21, 2019
    Assignee: COSMO LIGHTING INC.
    Inventor: Nai-Chen Tsai
  • Patent number: 10264631
    Abstract: A light set circuit with time control function includes a power supply module, a plurality of light emitting modules and a time control module. A first wire receives a positive voltage and a second wire receives a negative voltage, or the first wire receives a negative voltage and the second wire receives a positive voltage, from the power supply module. A first positive pin of a first light emitting module and a second positive pin of a second light emitting module are connected to the second wire, and a first negative pin of the first light emitting module and a second positive pin of the second light emitting module are connected to the second wire. The time control module counts time and controls light emitting states of the light emitting modules.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: April 16, 2019
    Assignee: COSMO LIGHTING INC.
    Inventor: Nai-Chen Tsai
  • Publication number: 20190103736
    Abstract: A wire and a stripping method thereof, and a light strip are provided. The stripping method includes the following steps: holding a wire by a holder, the wire including an insulation layer and a conductor covered by the insulation layer; mounting the holder on a worktable of a an optical device; and activating a light emitter of the optical device to emit a light beam irradiating onto the insulation layer to ablate a portion of the insulation layer to form at least one through hole that penetrates the insulation layer to expose a portion of the conductor.
    Type: Application
    Filed: August 9, 2018
    Publication date: April 4, 2019
    Inventor: Nai-Chen Tsai
  • Publication number: 20190101253
    Abstract: A light string, an automatic assembly apparatus and an automatic assembly method thereof are provided. The method includes steps of: arranging lamp housings in a lamp housing carrier by using an assembly machine; actuating a holder to move horizontally by using the assembly machine to align light-emitting elements with accommodating spaces of the lamp housings, respectively; actuating the holder to move vertically toward the lamp housing carrier by using the assembly machine to move the light-emitting elements into the accommodating spaces to be bonded to the lamp housings, respectively; removing a first wire and a second wire together with the light-emitting elements from the holder by the assembly machine; passing the first wire and the second wire through lamp housing through holes of the lamp housings by using the assembly machine; and taking out the light string from the lamp housing carrier by using the assembly machine.
    Type: Application
    Filed: September 26, 2018
    Publication date: April 4, 2019
    Inventor: Nai-Chen Tsai
  • Publication number: 20190103592
    Abstract: A power supply device is provided, which includes a plurality of battery packs and a plurality of unidirectional conductive elements. The plurality of battery packs are connected in parallel with each other and disposed toward the same direction. The unidirectional conductive elements are connected in serial to the battery packs, respectively. A positive pin of each of the unidirectional conductive elements is connected in serial to a positive terminal of the corresponding battery pack, and a negative pin of each of the unidirectional conductive elements is connected in parallel to negative pins of other unidirectional conductive elements. Therefore, the present disclosure is capable of preventing the battery packs having relatively lower voltages from being charged by the battery packs having relatively higher voltages, thereby prolonging lifetimes of batteries, and avoid from affecting power to be supplied to a power receiving circuit from the battery packs.
    Type: Application
    Filed: September 27, 2018
    Publication date: April 4, 2019
    Inventor: Nai-Chen Tsai
  • Publication number: 20190104578
    Abstract: A light set circuit with time control function includes a power supply module, a plurality of light emitting modules and a time control module. A first wire receives a positive voltage and a second wire receives a negative voltage, or the first wire receives a negative voltage and the second wire receives a positive voltage, from the power supply module. A first positive pin of a first light emitting module and a second positive pin of a second light emitting module are connected to the second wire, and a first negative pin of the first light emitting module and a second positive pin of the second light emitting module are connected to the second wire. The time control module counts time and controls light emitting states of the light emitting modules.
    Type: Application
    Filed: August 9, 2018
    Publication date: April 4, 2019
    Inventor: Nai-Chen Tsai
  • Publication number: 20190103505
    Abstract: An apparatus and a method for attaching LED chips are provided. The method includes steps of: winding a first wire and a second wire around each of holders; mounting the holders on a worktable; capturing an image of the worktable by an image capturing device; displaying the image and coordinate positions of the holders, the first wires and the second wires; inputting the number of LED chips to be attached across the first wire and the second wire to an electronic device; analyzing coordinate positions of the LED chips according to the coordinate positions of first segments of the first wire and second segments of the second wire on either sides of each of the holders, and the number of the LED chips; and attaching the LED chips across the first wire and the second wire by an attaching device.
    Type: Application
    Filed: September 28, 2018
    Publication date: April 4, 2019
    Inventor: Nai-Chen Tsai
  • Publication number: 20190101254
    Abstract: A method for manufacturing a light strip at least includes: winding a plurality of wires, removing an insulation layer, and attaching and fixing LED chips. The step of winding the wires includes providing a winding rack having a wire fixing portion at both ends of the winding rack, forming the winding rack with a hollow portion along a longitudinal direction, and winding the wires around the winding rack, wherein each of the wires has an insulation layer, and the wires are repeatedly wound across the hollow portion. The step of removing the insulation layer includes removing a part of the insulation layer from each of the wires to expose a core wire therein. The step of attaching and fixing the LED chips is attaching and fixing the LED chips on the core wires of the wires. Accordingly, the LED chips are firmly and electrically connected to the wires.
    Type: Application
    Filed: July 6, 2018
    Publication date: April 4, 2019
    Inventor: Nai-Chen Tsai
  • Publication number: 20190104576
    Abstract: A light string controlling circuit for single node and a method thereof are provided. The light string controlling circuit for single node includes a plurality of light-emitting elements, a power source element, a master controller and a plurality of single-node controllers. The master controller outputs a power supplying request to the power source element to instruct the power source element to supply power to the plurality of light-emitting elements sequentially. The plurality of single-node controllers are connected to the plurality of light-emitting assemblies respectively, and each of the single-node controllers outputs an emission control signal to control the luminous state of the corresponding light-emitting assemblies.
    Type: Application
    Filed: August 9, 2018
    Publication date: April 4, 2019
    Inventor: Nai-Chen Tsai
  • Patent number: D825088
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: August 7, 2018
    Assignee: COSMO LIGHTING INC.
    Inventor: Nai-Chen Tsai
  • Patent number: D825810
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: August 14, 2018
    Assignee: COSMO LIGHTING INC.
    Inventor: Nai-Chen Tsai