Patents by Inventor Kuo Chang Lo

Kuo Chang Lo 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: 10249954
    Abstract: A dipole antenna includes a substrate, a first region and a second region, which is used for frequency with wavelength ?. The substrate is flat rectangular and insulating material, which has a substrate width W which is at least 2.5 mm and a substrate length L. The substrate width W, the substrate length L and the wavelength ? complies with the formula: L/W=?(±10%). The first region and the second region is conducting material, the first region is disposed on the substrate and shifting to one side of the substrate, the second region is disposed on the substrate and shifting to another side of the substrate. Part of the first region is disposed adjacent to part of the second region and an adjacent region is formed between and a coupling effect is reduced.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: April 2, 2019
    Assignee: ARCADYAN TECHNOLOGY CORPORATION
    Inventors: Chih-Yung Huang, Kuo-Chang Lo
  • Publication number: 20190013586
    Abstract: A dipole antenna includes a substrate, a first region and a second region, which is used for frequency with wavelength ?. The substrate is flat rectangular and insulating material, which has a substrate width W which is at least 2.5 mm and a substrate length L. The substrate width W, the substrate length L and the wavelength ? complies with the formula: L/W=?(±10%). The first region and the second region is conducting material, the first region is disposed on the substrate and shifting to one side of the substrate, the second region is disposed on the substrate and shifting to another side of the substrate. Part of the first region is disposed adjacent to part of the second region and an adjacent region is formed between and a coupling effect is reduced.
    Type: Application
    Filed: September 7, 2017
    Publication date: January 10, 2019
    Inventors: Chih-Yung HUANG, Kuo-Chang LO
  • Patent number: 10103442
    Abstract: An antenna structure is disclosed. The antenna structure includes a signal-feeding terminal; a first radiating conductor extending from the signal-feeding terminal along a first direction to include a first gradually widening path; a ground terminal configured to be separated from the signal-feeding terminal by a first gap; and a second radiating conductor extending from the ground terminal along a second direction perpendicular to the first direction to include a second gradually widening path.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: October 16, 2018
    Assignee: Arcadyan Technology Corporation
    Inventors: Chih-Yung Huang, Kuo-Chang Lo
  • Patent number: 10050461
    Abstract: A charge control circuit includes an analog to digital converter (ADC) and a control unit, wherein the ADC is arranged for monitoring a temperature of a battery and converting the monitored temperature to a digital value; and the control unit is coupled to the analog to digital converter, and is arranged for determining whether to generate a control signal to adjust a charge current or a charging voltage of a battery or not according to the digital value, and the ADC and the control unit are fully hardware architectures.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: August 14, 2018
    Assignee: MediaTek Inc.
    Inventors: Kuo-Chang Lo, Chuan-Chang Lee
  • Patent number: 10020583
    Abstract: A dual-band antenna includes a substrate, a first antenna assembly, an isolation metal sheet, and a second antenna assembly. The first antenna assembly includes a first and a second planar inverted-F antennas, which are symmetric with each other and disposed on the first side of the substrate. The first planar inverted-F antenna includes a first radiation portion and a first ground portion. The second planar inverted-F antenna includes a second radiation portion and a second ground portion. The isolation metal sheet is coupled between the first ground portion and the second ground portion. The second antenna assembly includes a third and a fourth antennas, which are coupled to the first and the second ground portions, respectively, and are symmetric with each other and are disposed on the second side of the substrate. The first and the second antenna assemblies are operated at a first and a second frequencies, respectively.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: July 10, 2018
    Assignee: Arcadyan Technology Corporation
    Inventors: Min-Chi Wu, Kuo-Chang Lo
  • Patent number: 9973075
    Abstract: A method and apparatus for performing adaptive input current control in an electronic device are provided, where the method may include the steps of: before limiting an input current of a regulator of the electronic device to a target current value, monitoring the input current of the regulator according to a reference current, and decreasing the reference current, to make the reference current change starting from one of a plurality of predetermined reference current values, wherein the input current is obtained from a power source; detecting an input voltage of the regulator to generate a detection signal, to selectively trigger limiting output power of the regulator; and at a time point when the reference current becomes smaller than the input current, limiting the input current of the regulator to the target current value with a latest reference current value of the reference current being utilized as the target current value.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: May 15, 2018
    Assignee: MediaTek Inc.
    Inventors: Nien-Hui Kung, Kuo-Chang Lo, Chia-Hsiang Lin
  • Patent number: 9929463
    Abstract: A dual-band antenna disposed on the both sides of a substrate, including: a substrate, a first radiator and a second radiator. The substrate includes a first surface and a second surface; a feeding point is disposed at the edge of the first surface which may have a penetration hole electrically connected the first surface to the second surface. The first radiator extends from the first direction of the feeding point to the edge of the substrate, bend at the first corner, continues to extend toward the edge of the substrate, bends again at the second corner and then extend toward the third corner along the edge of the substrate. The second radiator straightly extends toward the second direction of the feeding point and the second direction's projection on the first surface is vertical to the first direction.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: March 27, 2018
    Assignee: ARCADYAN TECHNOLOGY CORPORATION
    Inventors: Min-Chi Wu, Chih-Yung Huang, Kuo-Chang Lo
  • Publication number: 20170317419
    Abstract: A dual-band antenna includes a substrate, a first antenna assembly, an isolation metal sheet, and a second antenna assembly. The first antenna assembly includes a first and a second planar inverted-F antennas, which are symmetric with each other and disposed on the first side of the substrate. The first planar inverted-F antenna includes a first radiation portion and a first ground portion. The second planar inverted-F antenna includes a second radiation portion and a second ground portion. The isolation metal sheet is coupled between the first ground portion and the second ground portion. The second antenna assembly includes a third and a fourth antennas, which are coupled to the first and the second ground portions, respectively, and are symmetric with each other and are disposed on the second side of the substrate. The first and the second antenna assemblies are operated at a first and a second frequencies, respectively.
    Type: Application
    Filed: February 15, 2017
    Publication date: November 2, 2017
    Inventors: Min-Chi Wu, Kuo-Chang Lo
  • Publication number: 20170288427
    Abstract: A charger circuit for use in controlling charge of a battery pack, which includes a charge control switch and a control unit. The charger circuit has at least one power output terminal and one connection terminal for coupling the battery pack. The charge control switch is arranged to selectively provide a power from a power source to the battery pack through the power output terminal. The control unit is coupled to the charge control switch and the connection terminal, and determines whether to turn off the charge control switch according to a signal based on the connection terminal, wherein the signal based on the connection terminal indicates at least one of an over-voltage condition and an over-temperature condition.
    Type: Application
    Filed: June 3, 2016
    Publication date: October 5, 2017
    Inventors: Kuo-Chang Lo, Chia-Hsiang Lin, Chih-Chien Huang
  • Patent number: 9780444
    Abstract: An antenna is provided. The antenna includes a feed-in terminal; a radiating portion extended from the feed-in terminal along a first direction to form a first hook portion; a connecting conductor extended from the feed-in terminal to a ground terminal along a second direction opposite to the first direction; and a ground portion extended from the ground terminal and having a cable grounding area, wherein the ground portion and the connecting conductor form a second hook portion opposite to the first hook portion; the cable grounding area has a longitudinal center line; and the first direction and the longitudinal center line form therebetween a specific angle ranging from 49-59 degrees.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: October 3, 2017
    Assignee: ARCADYAN TECHNOLOGY CORP.
    Inventors: Chih-Yung Huang, Kuo-Chang Lo
  • Publication number: 20170229780
    Abstract: The disclosure is related to a planar printed antenna and a system thereof. The antenna is characterized in that a signal feeding direction is essentially the same as the extended direction of antenna radiation member. For a layout space, the antenna is suitably applied to a product with limited space. The direction of feeding signals fed to the antenna is essentially the same as the extended direction of the radiation member of the antenna. Therefore, the signal loss can be reduced. Structurally, the planar printed antenna has a radiation member and a connection member. The connection member includes at least one transition portion. A feeding point is formed at a joining member between the radiation member and the connection member. In addition to the structural feature of the antenna, the feeding point and the grounding point are at different planar sides.
    Type: Application
    Filed: June 9, 2016
    Publication date: August 10, 2017
    Inventors: CHIH-YUNG HUANG, KUO-CHANG LO
  • Patent number: 9722311
    Abstract: The disclosure is related to an antenna device with continuous bending structure using the antenna. The radiation body of the antenna device includes a main region having at least three L-type continuous bending structures, and a ground region having at least one L-type bending structure. Two adjacent sides of the planar structure of the antenna device render an aspect ratio of approximately one to one. A signal feeding point and a signal grounding point are formed upon the main region. The two points are connected over a wire for forming a signal-feeding direction. According to a demand, the aspect of the present invention allows for modifying the signaling direction of the antenna by adjusting the mounting angle in an electronic device so as to modify the direction of radiation field intensity of the electronic device.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: August 1, 2017
    Assignee: ARCADYAN TECHNOLOGY CORPORATION
    Inventors: Chih-Yung Huang, Kuo-Chang Lo
  • Patent number: 9692131
    Abstract: A method of manufacturing an antenna is provided. The method includes steps of providing a substrate including a feed-in terminal and a ground terminal; and forming a ground conductor structure on the substrate extended from the feed-in terminal to the ground terminal and including a first conductor extended along a first direction, a second conductor extended from the first conductor along a second direction, a third conductor extended from the second conductor along a third direction, and a fourth conductor extended from the third conductor along a fourth direction, wherein a first obtuse angle is formed between the first direction and the second direction, a second obtuse angle is formed between the second direction and the third direction, and an acute angle is formed between the third direction and the fourth direction.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: June 27, 2017
    Assignee: ARCADYAN TECHNOLOGY CORPORATION
    Inventors: Chih-Yung Huang, Kuo-Chang Lo
  • Publication number: 20170162942
    Abstract: A dual-band monopole antenna includes a ground portion, a first radiator, a second radiator and a feed portion. The first radiator includes a first extension portion extended towards the ground portion, a second extension portion extended and perpendicular to the first extension portion, a third extension portion extended and perpendicular to the second extension portion, and a fourth extension portion extended and perpendicular to the third extension portion. The second radiator includes a fifth extension portion extended and parallel to the second extension portion, and a sixth extension portion parallel to the first extension portion. The feed portion has one end connected to the first extension portion and the other end corresponds to the ground portion.
    Type: Application
    Filed: July 29, 2016
    Publication date: June 8, 2017
    Inventors: Min-Chi WU, Kuo-Chang LO
  • Publication number: 20170162939
    Abstract: The disclosure is related to an antenna device with continuous bending structure using the antenna. The radiation body of the antenna device includes a main region having at least three L-type continuous bending structures, and a ground region having at least one L-type bending structure. Two adjacent sides of the planar structure of the antenna device render an aspect ratio of approximately one to one. A signal feeding point and a signal grounding point are formed upon the main region. The two points are connected over a wire for forming a signal-feeding direction. According to a demand, the aspect of the present invention allows for modifying the signaling direction of the antenna by adjusting the mounting angle in an electronic device so as to modify the direction of radiation field intensity of the electronic device.
    Type: Application
    Filed: February 26, 2016
    Publication date: June 8, 2017
    Inventors: CHIH-YUNG HUANG, KUO-CHANG LO
  • Patent number: 9653192
    Abstract: A PTC composition comprises crystalline polymer and conductive filler. The conductive filler comprises tungsten carbide powder dispersed in the crystalline polymer, and the tungsten carbide powder comprises impurity of less than 7% by weight. The impurity comprises the materials other than tungsten monocarbide.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: May 16, 2017
    Assignee: Polytronics Technology Corp.
    Inventors: Chien Cheng Ho, Tong Cheng Tsai, Kuo Chang Lo, Yi An Sha
  • Patent number: 9627757
    Abstract: A monopole antenna is disclosed. The monopole antenna includes a grounding terminal and a transmission line extending along a first direction and including a first terminal and a feeding terminal adjacent to the grounding terminal. The monopole antenna further includes a first radiator connected to the first terminal, extending along a second direction perpendicular to the first direction and operating within a first frequency range. The first radiator has a portion with a width increasing gradually along the second direction. The monopole antenna further includes a second radiator connected to the first terminal, extending along a third direction far away from the grounding terminal, having a first included angle with the transmission line, including a plurality of turns, and operating within a second frequency range.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: April 18, 2017
    Assignee: ARCADYAN TECHNOLOGY CORPORATION
    Inventors: Chih-Yung Huang, Kuo-Chang Lo
  • Patent number: 9614286
    Abstract: A dual-band dipole antenna includes a substrate, grounding area, main radiator, grounding point and a feed-in point. The grounding point may be disposed on the substrate. The main radiator may be disposed on the substrate and in the vicinity of the grounding point; the main radiator may comprises a first radiator and a second radiator, wherein the first radiator may be connected to the second radiator, and there may be a groove between the first radiator and the second radiator; besides the size of the main radiator is disproportional to the size of the grounding area. The grounding point may be disposed on the substrate and connected to the grounding area. The feed-in point may be disposed on the substrate and connected to the main radiator; the grounding point may be in the vicinity of the feed-in point.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: April 4, 2017
    Assignee: ARCADYAN TECHNOLOGY CORPORATION
    Inventors: Jian-Jhih Du, Chih-Yung Huang, Kuo-Chang Lo
  • Publication number: 20170085002
    Abstract: An antenna structure is disclosed. The antenna structure includes a signal-feeding terminal; a first radiating conductor extending from the signal-feeding terminal along a first direction to include a first gradually widening path; a ground terminal configured to be separated from the signal-feeding terminal by a first gap; and a second radiating conductor extending from the ground terminal along a second direction perpendicular to the first direction to include a second gradually widening path.
    Type: Application
    Filed: July 29, 2016
    Publication date: March 23, 2017
    Inventors: CHIH-YUNG HUANG, Kuo-Chang Lo
  • Publication number: 20170085007
    Abstract: A multi-antenna structure with high-isolation effect includes a substrate and a plurality of antennas. The substrate, formed as a symmetric polygonal metal board, has a plurality of grooves and a plurality of board edges. The antennas vertically installed on the board edges and having a conjunction portion close to the substrate includes a support member and a feed-in member. A radiation member of the antenna connected perpendicular to the support member and the feed-in member has a free radiation end. If virtual extension lines from the radiation ends of any two neighboring antennas are crossed, at least two grooves are constructed in between thereof. If virtual extension lines of the radiation ends of any two neighboring antennas don't cross, at least one groove is constructed between the two neighboring antennas. The groove is applied to avoid signal interference between any two neighboring antennas.
    Type: Application
    Filed: April 11, 2016
    Publication date: March 23, 2017
    Inventors: MIN-CHI WU, Kuo-Chang Lo