Patents by Inventor Chia-Cheng Chuang

Chia-Cheng Chuang 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).

  • Publication number: 20230096266
    Abstract: A common mode filter includes a magnetic core, a first wire wound around the magnetic core and comprising N turns, and a second wire wound around the magnetic core and comprising N turns, N being an integer exceeding 1. An (S+1)th turn of the first wire is stacked on an inner turn of the first wire and an inner turn of the second wire, S being a positive integer less than (N?1).
    Type: Application
    Filed: June 27, 2022
    Publication date: March 30, 2023
    Applicant: CYNTEC CO., LTD.
    Inventor: Chia-Cheng Chuang
  • Patent number: 10650961
    Abstract: An apparatus of coupled inductors includes a first coil and a second coil arranged in a way that an inter-coil capacitance between the first coil and the second coil can keep electromotive forces induced by a first inductance of the first coil and a second inductance of the second coil about the same. As the current bypasses an unbalanced parasitic capacitor, a compensation capacitor disposed between the two coils can compensate the inter-coil capacitance of the parasitic capacitor. The apparatus of coupled inductors implemented with a specific coil arrangement or disposed with the compensation capacitor can keep the EMFs induced over the two inductances equal in amplitude, which prevents both the differential-mode and common-mode interference from being converted, improving the characteristics of mode conversion and is suitable to be utilized in a PoE system or the like.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: May 12, 2020
    Assignee: CYNTEC CO., LTD.
    Inventor: Chia-Cheng Chuang
  • Patent number: 10559415
    Abstract: A common mode filter includes an inner coil and an outer coil. The inner coil is formed of an inner wire and includes a plurality of inner turns. The outer coil is formed of an outer wire and includes a plurality of outer turns and at least one cross turn. A sum of the plurality of outer turns and the at least one cross turn is equal to a number of the plurality of inner turns, and the at least one cross turn comprises a N-th turn of the outer coil wound across a (N?1)th turn of the outer coil, and adjacent to two of the plurality of turns of the outer coil.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: February 11, 2020
    Assignee: CYNTEC CO., LTD.
    Inventor: Chia-Cheng Chuang
  • Publication number: 20190237243
    Abstract: A common mode filter includes an inner coil and an outer coil. The inner coil is formed of an inner wire and includes a plurality of inner turns. The outer coil is formed of an outer wire and includes a plurality of outer turns and at least one cross turn. A sum of the plurality of outer turns and the at least one cross turn is equal to a number of the plurality of inner turns, and the at least one cross turn comprises a N-th turn of the outer coil wound across a (N?1)th turn of the outer coil, and adjacent to two of the plurality of turns of the outer coil.
    Type: Application
    Filed: January 29, 2018
    Publication date: August 1, 2019
    Inventor: Chia-Cheng Chuang
  • Publication number: 20190148062
    Abstract: An apparatus of coupled inductors includes a first coil and a second coil arranged in a way that an inter-coil capacitance between the first coil and the second coil can keep electromotive forces induced by a first inductance of the first coil and a second inductance of the second coil about the same. As the current bypasses an unbalanced parasitic capacitor, a compensation capacitor disposed between the two coils can compensate the inter-coil capacitance of the parasitic capacitor. The apparatus of coupled inductors implemented with a specific coil arrangement or disposed with the compensation capacitor can keep the EMFs induced over the two inductances equal in amplitude, which prevents both the differential-mode and common-mode interference from being converted, improving the characteristics of mode conversion and is suitable to be utilized in a PoE system or the like.
    Type: Application
    Filed: January 14, 2019
    Publication date: May 16, 2019
    Inventor: Chia-Cheng Chuang
  • Patent number: 10210992
    Abstract: An apparatus of coupled inductors includes a first coil and a second coil arranged in a way that an inter-coil capacitance between the first coil and the second coil can keep electromotive forces induced by a first inductance of the first coil and a second inductance of the second coil about the same. As the current bypasses an unbalanced parasitic capacitor, a compensation capacitor disposed between the two coils can compensate the inter-coil capacitance of the parasitic capacitor. The apparatus of coupled inductors implemented with a specific coil arrangement or disposed with the compensation capacitor can keep the EMFs induced over the two inductances equal in amplitude, which prevents both the differential-mode and common-mode interference from being converted, improving the characteristics of mode conversion and is suitable to be utilized in a PoE system or the like.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: February 19, 2019
    Assignee: CYNTEC CO., LTD.
    Inventor: Chia-Cheng Chuang
  • Patent number: 10062498
    Abstract: A composite magnetic component is provided. The composite magnetic component includes a magnetic flux-guiding unit, a first coil structure and a second coil structure. The first coil structure and the second coil structure are wound around a first winding portion and a second winding portion of the magnetic flux-guiding unit, respectively. A first magnetic flux results from the first coil structure and the magnetic flux-guiding unit. A second magnetic flux results from the second coil structure and the magnetic flux-guiding unit. The first magnetic flux is orthogonal to the second magnetic flux within the magnetic flux-guiding unit.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: August 28, 2018
    Assignee: CYNTEC CO., LTD.
    Inventor: Chia-Cheng Chuang
  • Patent number: 9859050
    Abstract: A magnetic element includes a first magnetic core, a second magnetic core and a plurality of conducting wires. The first magnetic core includes a first coiling body, a first protruding portion and a second protruding portion. The second magnetic core includes a second coiling body, a third protruding portion and a fourth protruding portion. A soldering surface of the first protruding portion is parallel and next to a soldering surface of the fourth soldering surface. Since an extension direction of the first magnetic core is extended from the soldering surface of the first protruding portion, an extension direction of the second magnetic core is extended from the soldering surface of the second protruding portion, and the plurality of conducting wires can be coiled on the first and the second coiling bodies respectively, the transformer can provide more space for coiling than the prior art.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: January 2, 2018
    Assignee: CYNTEC CO., LTD.
    Inventor: Chia-Cheng Chuang
  • Publication number: 20170098502
    Abstract: An apparatus of coupled inductors includes a first coil and a second coil arranged in a way that an inter-coil capacitance between the first coil and the second coil can keep electromotive forces induced by a first inductance of the first coil and a second inductance of the second coil about the same. As the current bypasses an unbalanced parasitic capacitor, a compensation capacitor disposed between the two coils can compensate the inter-coil capacitance of the parasitic capacitor. The apparatus of coupled inductors implemented with a specific coil arrangement or disposed with the compensation capacitor can keep the EMFs induced over the two inductances equal in amplitude, which prevents both the differential-mode and common-mode interference from being converted, improving the characteristics of mode conversion and is suitable to be utilized in a PoE system or the like.
    Type: Application
    Filed: September 28, 2016
    Publication date: April 6, 2017
    Inventor: Chia-Cheng Chuang
  • Publication number: 20170069419
    Abstract: A magnetic element includes a first magnetic core, a second magnetic core and a plurality of conducting wires. The first magnetic core includes a first coiling body, a first protruding portion and a second protruding portion. The second magnetic core includes a second coiling body, a third protruding portion and a fourth protruding portion. A soldering surface of the first protruding portion is parallel and next to a soldering surface of the fourth soldering surface. Since an extension direction of the first magnetic core is extended from the soldering surface of the first protruding portion, an extension direction of the second magnetic core is extended from the soldering surface of the second protruding portion, and the plurality of conducting wires can be coiled on the first and the second coiling bodies respectively, the transformer can provide more space for coiling than the prior art.
    Type: Application
    Filed: December 16, 2015
    Publication date: March 9, 2017
    Inventor: Chia-Cheng Chuang
  • Publication number: 20160064139
    Abstract: A composite magnetic component is provided. The composite magnetic component includes a magnetic flux-guiding unit, a first coil structure and a second coil structure. The first coil structure and the second coil structure are wound around a first winding portion and a second winding portion of the magnetic flux-guiding unit, respectively. A first magnetic flux results from the first coil structure and the magnetic flux-guiding unit. A second magnetic flux results from the second coil structure and the magnetic flux-guiding unit. The first magnetic flux is orthogonal to the second magnetic flux within the magnetic flux-guiding unit.
    Type: Application
    Filed: August 31, 2015
    Publication date: March 3, 2016
    Inventor: Chia-Cheng Chuang
  • Patent number: 9146606
    Abstract: A computer and a waking method thereof are provided. The computer includes a switch circuit, a chipset, a peripheral component interconnect express (PCIE) device, and an embedded controller. The chipset includes a first wake-up pin and a power button pin, wherein the first wake-up pin is coupled to a terminal of the switch circuit. The PCIE device includes a second wake-up pin, and the embedded controller includes a general purpose input pin and a general purpose output pin. The general purpose input pin and the second wake-up pin are coupled to another terminal of the switch circuit. The general purpose output pin is coupled to the power button pin.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: September 29, 2015
    Assignee: WISTRON CORPORATION
    Inventors: I-Chih Huang, Chia-Cheng Chuang, Chih-Yung Chia
  • Publication number: 20150006922
    Abstract: A computer and a waking method thereof are provided. The computer includes a switch circuit, a chipset, a peripheral component interconnect express (PCIE) device, and an embedded controller. The chipset includes a first wake-up pin and a power button pin, wherein the first wake-up pin is coupled to a terminal of the switch circuit. The PCIE device includes a second wake-up pin, and the embedded controller includes a general purpose input pin and a general purpose output pin. The general purpose input pin and the second wake-up pin are coupled to another terminal of the switch circuit. The general purpose output pin is coupled to the power button pin.
    Type: Application
    Filed: November 5, 2013
    Publication date: January 1, 2015
    Applicant: Wistron Corporation
    Inventors: I-Chih Huang, Chia-Cheng Chuang, Chih-Yung Chia
  • Patent number: 8339218
    Abstract: By having stages of a single-to-balanced band pass filter, except for a stage which receives a single-terminal signal, to not be coupled to ground, noises cannot have an available path to enter the single-to-balanced band pass filter so that common-mode signals may be reduced in magnitude.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: December 25, 2012
    Assignee: Cyntec Co., Ltd.
    Inventor: Chia-Cheng Chuang
  • Publication number: 20120049977
    Abstract: By having stages of a single-to-balanced band pass filter, except for a stage which receives a single-terminal signal, to not be coupled to ground, noises cannot have an available path to enter the single-to-balanced band pass filter so that common-mode signals may be reduced in magnitude.
    Type: Application
    Filed: August 30, 2010
    Publication date: March 1, 2012
    Inventor: Chia-Cheng Chuang
  • Patent number: 7877855
    Abstract: A method for forming a vertical coupling structure for non-adjacent resonators is provided to have a first and a second resonators, a dielectric material layer, a first and a second high-frequency transmission lines and at least one via pole. The first and the second resonators respectively have a first and a second opposite metal surfaces. The dielectric material layer is disposed between the opposite second metal surfaces of the first and the second resonators. The first and the second transmission lines are respectively arranged at sides of the first metal surfaces of the first resonator and the second resonator. The first high-frequency transmission line is vertically connected to the second high-frequency transmission line by the via pole.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: February 1, 2011
    Assignees: Industrial Technology Research Institute, National Taiwan University
    Inventors: Chia-Cheng Chuang, Ruey-Beei Wu, Tze-Min Shen
  • Patent number: 7872550
    Abstract: A vertical coupling structure for non-adjacent resonators is provided. The vertical coupling structure has a first resonator and a second resonator. At least one side of the first resonator is formed as a first bent extension structure, and the first bent extension structure includes a slot. The second resonator is not adjacent to the first resonator, and the side of the second resonator opposite to the first bent extension structure of the first resonator further includes a slot, such that the two sides are electrically connected.
    Type: Grant
    Filed: January 18, 2010
    Date of Patent: January 18, 2011
    Assignees: Industrial Technology Research Institute, National Taiwan University
    Inventors: Chia-Cheng Chuang, Ruey-Beei Wu, Tze-Min Shen
  • Publication number: 20100117768
    Abstract: A vertical coupling structure for non-adjacent resonators is provided. The vertical coupling structure has a first resonator and a second resonator. At least one side of the first resonator is formed as a first bent extension structure, and the first bent extension structure includes a slot. The second resonator is not adjacent to the first resonator, and the side of the second resonator opposite to the first bent extension structure of the first resonator further includes a slot, such that the two sides are electrically connected.
    Type: Application
    Filed: January 18, 2010
    Publication date: May 13, 2010
    Applicants: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, NATIONAL TAIWAN UNIVERSITY
    Inventors: Chia-Cheng Chuang, Ruey-Beei Wu, Tze-Min Shen
  • Patent number: 7708176
    Abstract: A guiding apparatus and method for a shift generated by a web during web transportation is provided, in which a coarse position guiding module and a fine position guiding module function to directly adjust the web so as to compensate the shift occurred during the process of transportation according to a position of the web. By means of monitoring a location of the fine position guiding module at any time, a reference of the coarse position guiding module will be adjusted when the location of the fine position guiding module satisfies the condition defined in the guiding method, so as to change a position where the web enters into the fine position guiding module.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: May 4, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Chia-Cheng Chuang, Chih-Yu Ke, Chin-Lung Liu, Chih-Jen Tsai, Chung-Hsin Hsiao, Chang-Chou Li
  • Publication number: 20100072244
    Abstract: A guiding apparatus and method for a shift generated by a web during web transportation is provided, in which a coarse position guiding module and a fine position guiding module function to directly adjust the web so as to compensate the shift occurred during the process of transportation according to a position of the web. By means of monitoring a location of the fine position guiding module at any time, a reference of the coarse position guiding module will be adjusted when the location of the fine position guiding module satisfies the condition defined in the guiding method, so as to change a position where the web enters into the fine position guiding module.
    Type: Application
    Filed: November 18, 2008
    Publication date: March 25, 2010
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chia-Cheng CHUANG, Chih-Yu Ke, Chin-Lung Liu, Chih-Jen Tsai, Chung-Hsin Hsiao, Chang-Chou Li