Patents by Inventor Cho-Kang Hsu

Cho-Kang Hsu 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: 20210359393
    Abstract: An antenna for a foldable electronic device which functions equally well in both folded and unfolded states includes a rotating shaft and a housing. The overall housing is made of metallic material and includes a first housing and a second housing. The first housing connects to the second housing through the rotating shaft. The housing further defines at least one group of slots to form at least one slot antenna. The at least one slot antenna crosses the rotating shaft and extends to the first housing and/or the second housing. By setting at least one slot antenna to correspond to the rotating shaft, the foldable electronic device achieves high radiation performance whether the first and second housing are folded or unfolded.
    Type: Application
    Filed: May 4, 2021
    Publication date: November 18, 2021
    Inventors: CHO-KANG HSU, MIN-HUI HO
  • Publication number: 20210320392
    Abstract: An antenna structure with multiple frequency capabilities applied to an electronic device includes frame body, first feed point, a first switch point, and second switch point. The frame body has at least one portion made of metal material and defines two gaps. The frame body between gaps form a first radiation portion. The first feed point from a source feeds current and signal to the first radiation portion. The first switch point and the second switch point are located at two ends of the frame body adjacent to the first gap. The first switch point and the second switch point are grounded through a switch circuit.
    Type: Application
    Filed: April 9, 2021
    Publication date: October 14, 2021
    Inventors: CHO-KANG HSU, MIN-HUI HO
  • Patent number: 11121452
    Abstract: An antenna structure of reduced size but able to cover first, second, and third LTE-A bands together with WI-FI and BLUETOOTH frequencies includes a metal frame defining at least two gaps. The gaps extend and pass completely through the metal frame, and divide the metal frame into radiating portions. At least one feeding portion is electrically coupled to each radiating portion. Each radiating portion can simultaneously activate first, second, and third operating modes for the radiation of signals in first, second, and third frequency bands.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: September 14, 2021
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventors: Cho-Kang Hsu, Min-Hui Ho, Yi-Ting Chen, Yen-Jung Tseng
  • Publication number: 20210210839
    Abstract: An antenna structure with wide radiation bandwidth in a reduced physical space includes a housing, a first feed portion, and a second feed portion. The housing includes a metallic side frame, a metallic middle frame, and a metallic back board. The metallic side frame defines first and second gaps and the metallic back board defines a slot. The slot, and the first and second gaps, create a first radiation portion from the metallic side frame. The first and second feed portions are both electrically connected to the first radiation portion. When the first feed portion feeds current, the current flows through the first radiation portion, toward the second gap to excite a GPS mode and a WIFI 2.4 GHz mode. When the second feed portion feeds current, the current flows through the first radiation portion, toward the first gap to excite a WIFI 5 GHz mode.
    Type: Application
    Filed: December 29, 2020
    Publication date: July 8, 2021
    Inventors: CHO-KANG HSU, MIN-HUI HO
  • Publication number: 20210210838
    Abstract: An antenna structure with wide radiation bandwidth in a reduced physical space includes a housing, a first feed portion, and a second feed portion. The housing includes a metallic side frame, a metallic middle frame, and a metallic back board. The metallic side frame defines a first gap and a second gap. The metallic back board defines a slot. The slot, the first and second gaps divide a first radiation portion and a second radiation from the metallic side frame. The first feed portion is electrically connected to the first radiation portion. The second feed portion is electrically connected to the second radiation portion. The metallic middle frame and the metallic back board are connected to each other to form a system ground plane to provide a ground for the antenna structure.
    Type: Application
    Filed: December 29, 2020
    Publication date: July 8, 2021
    Inventors: CHO-KANG HSU, MIN-HUI HO, TE-CHANG LIN
  • Publication number: 20210210837
    Abstract: An antenna structure with wide radiation bandwidth in a reduced physical space includes a housing, a first feed portion, and a second feed portion. The housing includes a metallic side frame, a metallic middle frame, and a metallic back board. The metallic side frame defines first and second gaps, and the metallic back board defines a slot. The slot, the first gap, and the second gap divide the metallic side frame to give a first radiation portion. The first and second feed portions are both electrically connected to the first radiation portion. When the first feed portion supplies a current, the current flows through the first radiation portion, toward the second gap to excite a first working mode. When the second feed portion supplies a current, the current flows through the first radiation portion, toward the first gap to excite a second working mode.
    Type: Application
    Filed: December 29, 2020
    Publication date: July 8, 2021
    Inventors: CHO-KANG HSU, MIN-HUI HO, TE-CHANG LIN
  • Publication number: 20210135362
    Abstract: An antenna structure with wide radiation bandwidth in a reduced physical space includes a housing and a feed portion. The housing defines at least one gap and a slot that divides the housing into two or more radiation portions. The antenna structure further includes a middle-high band reflector (MHR). The MHR is connected to a side frame of the housing and extends along a direction parallel to one radiation portion. The MHR can also be positioned apart from one radiation portion. One end of the MHR is connected to a back board of the housing, the feed portion being electrically connected to one radiation portion. The back board and portions of the side frame without radiation portions are connected to form a system ground plane for grounding the antenna structure.
    Type: Application
    Filed: October 30, 2020
    Publication date: May 6, 2021
    Inventors: CHO-KANG HSU, MIN-HUI HO
  • Patent number: 10950925
    Abstract: An antenna structure includes a housing, a feeding portion, and a connecting portion. The housing defines a gap and a groove. The housing forms a radiating portion and a coupling portion through the gap and the groove. A portion of the housing between the feeding portion and the gap forms a first radiating section. The connecting portion is electrically connected to one end of the coupling portion adjacent to the gap. When the feeding portion supplies current, the current flows through the feeding portion and the first radiating section, and is coupled to the connecting portion through the gap to activate a first operating mode. When the feeding portion supplies current, the current flows through the feeding portion and the first radiating section, and is coupled to the coupling portion through the gap to activate a second operating mode.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: March 16, 2021
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventors: Yi-Ting Chen, Yen-Jung Tseng, Cho-Kang Hsu, Jung-Sheng Chih, Wen-Chang Hsu, Min-Hui Ho
  • Patent number: 10892552
    Abstract: An antenna structure includes a housing and at least one switching circuit. The housing includes a border frame made of metal including at least one gap dividing the border frame into at least two radiating portions. The at least one switching circuit is mounted to the at least one gap and electrically coupled to the at least two radiating portions on opposite sides of the at least one switching circuit. The at least one switching circuit is controlled to switch between an open circuit state and a closed circuit state. A length of the at least two radiating portions is changed by the at least one switching circuit switched between the open circuit state and the closed circuit state to adjust a bandwidth of the antenna structure.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: January 12, 2021
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventors: Cho-Kang Hsu, Min-Hui Ho
  • Publication number: 20200358198
    Abstract: An antenna structure with wide bandwidth in a reduced physical space includes a housing, a side wall, and a first feed portion. The housing includes a metal side frame, a metal middle frame, and a metal back board. The side wall is made of metal material. The metal middle frame and the metal back board are coupled to two sides of the side wall, and the metal middle frame is parallel to the metal back board. The metal side frame surrounds the metal back board. The metal side frame defines at least one gap. The metal back board defines a slot. The slot and the at least one gap cooperatively divide at least two radiation portions from the metal side frame. A wireless communication device employing the antenna structure is also provided.
    Type: Application
    Filed: May 6, 2020
    Publication date: November 12, 2020
    Inventors: CHO-KANG HSU, MIN-HUI HO
  • Publication number: 20200106159
    Abstract: An antenna structure of reduced size but able to cover first, second, and third LTE-A bands together with WI-FI and BLUETOOTH frequencies includes a metal frame defining at least two gaps. The gaps extend and pass completely through the metal frame, and divide the metal frame into radiating portions. At least one feeding portion is electrically coupled to each radiating portion. Each radiating portion can simultaneously activate first, second, and third operating modes for the radiation of signals in first, second, and third frequency bands.
    Type: Application
    Filed: September 11, 2019
    Publication date: April 2, 2020
    Inventors: CHO-KANG HSU, MIN-HUI HO, YI-TING CHEN, YEN-JUNG TSENG
  • Publication number: 20190372223
    Abstract: An antenna structure includes a housing and at least one switching circuit. The housing includes a border frame made of metal including at least one gap dividing the border frame into at least two radiating portions. The at least one switching circuit is mounted to the at least one gap and electrically coupled to the at least two radiating portions on opposite sides of the at least one switching circuit. The at least one switching circuit is controlled to switch between an open circuit state and a closed circuit state. A length of the at least two radiating portions is changed by the at least one switching circuit switched between the open circuit state and the closed circuit state to adjust a bandwidth of the antenna structure.
    Type: Application
    Filed: May 31, 2019
    Publication date: December 5, 2019
    Inventors: CHO-KANG HSU, MIN-HUI HO
  • Patent number: 10389030
    Abstract: An antenna structure includes a feed portion, a high-frequency radiating portion, a low-frequency radiating portion, an extension portion, and a switching unit. The high-frequency radiating portion is electrically connected to the feed portion. The low-frequency radiating portion is electrically connected to the high-frequency radiating portion. The extension portion is electrically connected to the feed portion and the high-frequency radiating portion. The switching unit is electrically connected to the extension portion to control the extension portion to be in one of an open-circuit state and a short-circuit state.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: August 20, 2019
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventors: Cho-Kang Hsu, Te-Chang Lin
  • Publication number: 20190252765
    Abstract: An antenna structure includes a housing, a feeding portion, and a connecting portion. The housing defines a gap and a groove. The housing forms a radiating portion and a coupling portion through the gap and the groove. A portion of the housing between the feeding portion and the gap forms a first radiating section. The connecting portion is electrically connected to one end of the coupling portion adjacent to the gap. When the feeding portion supplies current, the current flows through the feeding portion and the first radiating section, and is coupled to the connecting portion through the gap to activate a first operating mode. When the feeding portion supplies current, the current flows through the feeding portion and the first radiating section, and is coupled to the coupling portion through the gap to activate a second operating mode.
    Type: Application
    Filed: January 30, 2019
    Publication date: August 15, 2019
    Inventors: YI-TING CHEN, YEN-JUNG TSENG, CHO-KANG HSU, JUNG-SHENG CHIH, WEN-CHANG HSU, MIN-HUI HO
  • Patent number: 10044097
    Abstract: An antenna structure includes a metal housing, a feed portion, and a ground portion. The metal housing includes a front frame, a backboard, and a side frame. The side frame defines a slot and the front frame defines a first gap and a second gap. The metal housing is divided into at least a first radiating portion and a second radiating portion by the slot and the first and second gaps. The feed portion is electrically connected to the first radiating portion. The ground portion is electrically connected to the first radiating portion. The second radiating portion includes a first radiating section, a second radiating section, and a connecting section perpendicularly connected to the first radiating section, the second radiating section, and the backboard. The first radiating section and the second radiating section are both parallel to the first radiating portion.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: August 7, 2018
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventors: Men-Hsueh Tsai, Cho-Kang Hsu, Kai-Ting Hung
  • Patent number: 9966651
    Abstract: A wireless communication device includes a housing and an antenna. The housing includes a frame. The frame includes a metal portion and a non-metal portion connected to the metal portion. The antenna includes a base board and a radiating body. The radiating body is partially surrounding the base and electrically connected to the base board. The radiating body is formed by the metal portion.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: May 8, 2018
    Assignee: Chi Mei Communication Systems, Inc.
    Inventors: Te-Chang Lin, Cho-Kang Hsu
  • Patent number: 9912049
    Abstract: A dual-band Wi-Fi antenna structure includes a metallic middle frame of a casing of a handheld electronic device, a grounding plane received in the middle frame, an antenna body connected to the grounding plane, and an adjusting element. The grounding plane defines a rectangular recess in a corner thereof. The antenna body has a radiation patch having a part located over the recess. The adjusting element is located in the recess. An effective length of the recess is adjustable by adjusting a parameter of the adjusting element, which is a coefficient of self-inductance when the adjusting element is an adjustable inductor. By adjusting the effective length of the recess, a resonant frequency of the antenna structure at a low frequency band is adjustable, while a resonant frequency thereof at a high frequency band is not altered.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: March 6, 2018
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventors: Tze-Hsuan Chang, Cho-Kang Hsu
  • Publication number: 20180062267
    Abstract: An antenna structure includes a feed portion, a high-frequency radiating portion, a low-frequency radiating portion, an extension portion, and a switching unit. The high-frequency radiating portion is electrically connected to the feed portion. The low-frequency radiating portion is electrically connected to the high-frequency radiating portion. The extension portion is electrically connected to the feed portion and the high-frequency radiating portion. The switching unit is electrically connected to the extension portion to control the extension portion to be in one of an open-circuit state and a short-circuit state.
    Type: Application
    Filed: August 23, 2017
    Publication date: March 1, 2018
    Inventors: CHO-KANG HSU, TE-CHANG LIN
  • Patent number: 9905913
    Abstract: An antenna structure includes a metal housing, a first feed portion, a first ground portion, a second ground portion, and a radiator. The metal housing includes a front frame, a backboard, and a side frame. The side frame defines a slot and the front frame defines a gap. The metal housing is divided into at least a long portion and a short portion by the slot and the gap. One end of the first feed portion is electrically connected to the long portion for feeding current to the long portion and another end of the first feed portion is electrically connected to the backboard. The first and second ground portions are both electrically connected to the long portion for grounding the long portion. The radiator is positioned in the metal housing, electrically connected to the backboard, and is spaced apart from the short portion.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: February 27, 2018
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventors: Kai-Ting Hung, Cho-Kang Hsu, Men-Hsueh Tsai
  • Publication number: 20180026351
    Abstract: An antenna structure includes a metal housing, a feed portion, and a ground portion. The metal housing includes a front frame, a backboard, and a side frame. The side frame defines a slot and the front frame defines a first gap and a second gap. The metal housing is divided into at least a first radiating portion and a second radiating portion by the slot and the first and second gaps. The feed portion is electrically connected to the first radiating portion. The ground portion is electrically connected to the first radiating portion. The second radiating portion includes a first radiating section, a second radiating section, and a connecting section perpendicularly connected to the first radiating section, the second radiating section, and the backboard. The first radiating section and the second radiating section are both parallel to the first radiating portion.
    Type: Application
    Filed: July 17, 2017
    Publication date: January 25, 2018
    Inventors: MEN-HSUEH TSAI, CHO-KANG HSU, KAI-TING HUNG