Patents by Inventor You-Fu CHENG
You-Fu CHENG 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: 20230122470Abstract: A cavity-backed slot antenna system provided in this disclosure is installed in a housing of an electronic device and includes a metal cavity, a supporting element, an antenna device, a conductive post, and a coupling metal part. The metal cavity is in the housing and includes an opening and a closed surface opposite to each other. A slot is on the closed surface. The supporting element is in the metal cavity. The antenna device is in the metal cavity and on the supporting element, to expose one side surface of the antenna device. The antenna device includes a feed source. The conductive post penetrates the antenna device and connects to the metal cavity. The coupling metal part is in the housing and close to the opening of the metal cavity, so that the coupling metal part is close to and corresponds to the feed source of the antenna device.Type: ApplicationFiled: September 21, 2022Publication date: April 20, 2023Inventors: Shih-Hsun Chang, Wei-Lin Tsai, Zhi-Zeng Cheng, You-Fu Cheng, Tsung-Hsun Hsieh
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Patent number: 10750518Abstract: An antenna system includes: a plurality of antennas; a switching unit, having a plurality of switches, wherein each of the plurality of switches and the corresponding antenna are in a conducting state or in a non-conducting state; a communication unit, connected with each of the plurality of switches of the switching unit, and coupled with the antennas, wherein the communication unit receives a reference value group of the corresponding antenna from the switch in the conducting state; and a control unit, connected with the switching unit and the communication unit, wherein the control unit receives the reference value group from the communication unit, and compares the reference value group with an threshold, to determine whether the reference value group conforms to a pre-determined condition or not, and outputs a restarting instruction to restart the switching unit when the reference value group does not satisfy the pre-determined condition.Type: GrantFiled: May 23, 2019Date of Patent: August 18, 2020Assignee: ASUSTEK COMPUTER INC.Inventors: Zih-Guang Liao, Wen-Hsin Lin, Ching-Chung Tang, Tsung-Hsun Hsieh, You-Fu Cheng
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Publication number: 20190364572Abstract: An antenna system includes: a plurality of antennas; a switching unit, having a plurality of switches, wherein each of the plurality of switches and the corresponding antenna are in a conducting state or in a non-conducting state; a communication unit, connected with each of the plurality of switches of the switching unit, and coupled with the antennas, wherein the communication unit receives a reference value group of the corresponding antenna from the switch in the conducting state; and a control unit, connected with the switching unit and the communication unit, wherein the control unit receives the reference value group from the communication unit, and compares the reference value group with an threshold, to determine whether the reference value group conforms to a pre-determined condition or not, and outputs a restarting instruction to restart the switching unit when the reference value group does not satisfy the pre-determined condition.Type: ApplicationFiled: May 23, 2019Publication date: November 28, 2019Inventors: Zih-Guang Liao, Wen-Hsin Lin, Ching-Chung Tang, Tsung-Hsun Hsieh, You-Fu Cheng
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Patent number: 9685703Abstract: A tunable antenna including a first radiating element, a second radiating element, a connection circuit and a switch circuit is provided. The first radiating element includes a coupling portion and a first feeding portion. The second radiating element includes a second feeding portion, a grounding portion and a radiation portion. The grounding portion is electrically connected to a ground plane, and the radiation portion surrounds the coupling portion to form a first coupling gap and the second coupling gap. The connection circuit is electrically connected to the radiation portion and a state of the connection circuit is changed according to a control signal, so as to adjust a length of the resonant path of the radiation portion. A feeding signal is transmitted to the first feeding portion or the second feeding portion by the switch circuit.Type: GrantFiled: November 20, 2014Date of Patent: June 20, 2017Assignee: ASUSTeK COMPUTER INC.Inventors: Yeh-Chun Kao, You-Fu Cheng, Yu-Chia Chang
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Patent number: 9590303Abstract: An antenna device is provided. The antenna includes a feeding end, a grounding end, a loop metal portion and a protruded metal portion. The grounding end is electrically connected to a ground plane. The loop metal portion extends from the feeding end to the grounding end to form a loop antenna structure. The protruded metal portion is electrically connected to the loop metal portion, wherein the distance between the protruded metal portion and the grounding end is shorter than the distance between the protruded metal portion and the feeding end.Type: GrantFiled: December 22, 2013Date of Patent: March 7, 2017Assignee: ASUSTeK COMPUTER INC.Inventors: Yeh-Chun Kao, You-Fu Cheng, Yu-Chia Chang
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Publication number: 20150145744Abstract: A tunable antenna including a first radiating element, a second radiating element, a connection circuit and a switch circuit is provided. The first radiating element includes a coupling portion and a first feeding portion. The second radiating element includes a second feeding portion, a grounding portion and a radiation portion. The grounding portion is electrically connected to a ground plane, and the radiation portion surrounds the coupling portion to form a first coupling gap and the second coupling gap. The connection circuit is electrically connected to the radiation portion and a state of the connection circuit is changed according to a control signal, so as to adjust a length of the resonant path of the radiation portion. A feeding signal is transmitted to the first feeding portion or the second feeding portion by the switch circuit.Type: ApplicationFiled: November 20, 2014Publication date: May 28, 2015Applicant: ASUSTeK COMPUTER INC.Inventors: Yeh-Chun Kao, You-Fu Cheng, Yu-Chia Chang
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Publication number: 20140253398Abstract: A tunable antenna includes a ground plane, a first radiation unit and a second radiation unit. The first radiation unit includes a feeding portion and a coupling portion. The feeding portion is electrically connected to a signal source. The second radiation unit surrounds a part of the coupling portion and includes a grounding end and a switch unit. The grounding end is electrically connected to the ground plane. The switch unit is electrically connected to the grounding end and the ground plane selectively.Type: ApplicationFiled: February 26, 2014Publication date: September 11, 2014Applicant: ASUSTeK COMPUTER INC.Inventors: Tsung-Hsun HSIEH, Ting-Yi LIN, Yeh-Chun KAO, Yu-Chia CHANG, You-Fu CHENG
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Publication number: 20140210682Abstract: An antenna device is provided. The antenna includes a feeding end, a grounding end, a loop metal portion and a protruded metal portion. The grounding end is electrically connected to a ground plane. The loop metal portion extends from the feeding end to the grounding end to form a loop antenna structure. The protruded metal portion is electrically connected to the loop metal portion, wherein the distance between the protruded metal portion and the grounding end is shorter than the distance between the protruded metal portion and the feeding end.Type: ApplicationFiled: December 22, 2013Publication date: July 31, 2014Applicant: ASUSTeK COMPUTER INC.Inventors: Yeh-Chun KAO, You-Fu CHENG, Yu-Chia CHANG