Patents by Inventor Yu Hwang
Yu Hwang 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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Patent number: 11924132Abstract: A communication device comprises a receiver including at least two receive antennas and configured to receive at least one reference signal of a plurality of reference signals, each reference signal being transmitted from at least one base station at a predefined reference signal transmission time; a controller configured to switch between at least two receive configurations of the at least two antennas during a reception period of the at least one reference signal; and a signal quality determiner configured to determine a parameter indicative of a first signal quality of the received reference signal for each receive configuration.Type: GrantFiled: October 3, 2022Date of Patent: March 5, 2024Assignee: Apple Inc.Inventors: Zhibin Yu, Michael Ruder, Holger Neuhaus, Yeong-Sun Hwang, Bertram Gunzelmann
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Patent number: 11764777Abstract: The present invention relates to a new type of current driving circuit, which has high linearity during low current driving, comprising: a voltage-current conversion unit for converting an input voltage into a current; a digital analog converter (DAC) connected to an output terminal of the voltage-current conversion unit and for generating and outputting a voltage corresponding to an applied digital code; a field effect transistor having a first electrode connected to a load and a second electrode connected to a node connected to a resistor, and for allowing a current to flow to the load in response to a voltage applied to a gate; an amplifier for receiving the voltage output from the digital analog converter and a voltage generated by the resistor, generating a voltage for controlling such that a current flows from the field effect transistor, and applying same to the gate; a current supply source for supplying to the first electrode a current required for operating the field effect transistor in a saturatioType: GrantFiled: February 22, 2021Date of Patent: September 19, 2023Assignee: DONGWOON ANATECH CO., LTD.Inventors: Joon Seok Lee, Yu Hwang Lee, Jin Park
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Patent number: 11750028Abstract: A wireless charging device includes a plug module, a rack and a wireless charger. The plug module has a top wall, and two opposite side walls connected with two opposite sides of the top wall. A front end of a top surface of the top wall of the plug module is defined as an inclined plane. The rack is mounted on the inclined plane of the plug module. A front end of a bottom surface of the rack is recessed inward to form a lower accommodating groove. The inclined plane is mounted in the lower accommodating groove. A top surface of the rack is recessed downward to form an upper accommodating groove. The wireless charger is mounted in the upper accommodating groove.Type: GrantFiled: August 20, 2021Date of Patent: September 5, 2023Assignee: CHENG UEI PRECISION INDUSTRY CO., LTD.Inventors: Yuan-Yu Hwang, Xiao-Kang Yang, Qin-Xiang Liu
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Publication number: 20230188061Abstract: The present invention relates to a haptic feedback system, and in particular to a device and method for rapidly removing residual vibration in a linear resonant actuator, the method driving the linear resonant actuator by applying a resonant frequency thereto to implement a haptic function and applying a braking signal for removing the residual vibration after the driving of the linear resonant actuator, wherein the braking signal is a driving wave for generating the same vibration waveform as a residual vibration waveform of the linear resonant actuator, and is applied to the linear resonant actuator at a point of time when a BEMF signal of the linear resonant actuator crosses a zero point, the braking signal being applied in an opposite direction in which it is possible to cancel the residual vibration waveform of the linear resonant actuator.Type: ApplicationFiled: February 22, 2021Publication date: June 15, 2023Inventors: Joon Seok LEE, Yu Hwang LEE, Jin PARK
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Patent number: 11628778Abstract: A vehicle-used bracket includes a base body, a clamping assembly and a buffering element. The base body has a main portion, a peripheral wall extended upward from a periphery of a top surface of the main portion, and a connecting portion fastened to a bottom surface of the base body. A periphery of a bottom surface of the connecting portion extends downward to form a limiting structure. The clamping assembly is mounted to the bottom surface of the connecting portion. The clamping assembly includes a screw, a fastening element and a claw. The claw has a fastening piece. A top surface of the fastening piece is arched towards the connecting portion to form at least one protruding block. The at least one protruding block is limited in the limiting structure. The buffering element is mounted between the connecting portion and the clamping assembly.Type: GrantFiled: February 18, 2022Date of Patent: April 18, 2023Assignee: CHENG UEI PRECISION INDUSTRY CO., LTD.Inventors: Yuan-Yu Hwang, Xiao-Kang Yang, Qin-Xiang Liu
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Publication number: 20220416573Abstract: A wireless charging device includes a plug module, a rack and a wireless charger. The plug module has a top wall, and two opposite side walls connected with two opposite sides of the top wall. A front end of a top surface of the top wall of the plug module is defined as an inclined plane. The rack is mounted on the inclined plane of the plug module. A front end of a bottom surface of the rack is recessed inward to form a lower accommodating groove. The inclined plane is mounted in the lower accommodating groove. A top surface of the rack is recessed downward to form an upper accommodating groove. The wireless charger is mounted in the upper accommodating groove.Type: ApplicationFiled: August 20, 2021Publication date: December 29, 2022Inventors: YUAN-YU HWANG, XIAO-KANG YANG, QIN-XIANG LIU
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Publication number: 20220407353Abstract: A wireless charger includes a housing which is a circular plate shape, a wireless charging module and a holder. An inside of the housing has an internal space. A front of a lower portion of a peripheral surface of the housing is recessed inward to form a holding slot. Two sides of the housing define two blind holes. The holding slot is connected with the two blind holes. The wireless charging module is assembled in the internal space. The holder is placed in the holding slot. The holder is pivotally located in the housing. The holder is rotatable around a bottom surface of the housing. The holder has a frame, and two pivot pins protruded towards each other from two ends of the frame. The two pivot pins are assembled to the two blind holes.Type: ApplicationFiled: April 29, 2022Publication date: December 22, 2022Inventors: YUAN-YU HWANG, XIAO-KANG YANG, QIN-XIANG LIU
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Publication number: 20220371524Abstract: A vehicle-used bracket includes a base body, a clamping assembly and a buffering element. The base body has a main portion, a peripheral wall extended upward from a periphery of a top surface of the main portion, and a connecting portion fastened to a bottom surface of the base body. A periphery of a bottom surface of the connecting portion extends downward to form a limiting structure. The clamping assembly is mounted to the bottom surface of the connecting portion. The clamping assembly includes a screw, a fastening element and a claw. The claw has a fastening piece. A top surface of the fastening piece is arched towards the connecting portion to form at least one protruding block. The at least one protruding block is limited in the limiting structure. The buffering element is mounted between the connecting portion and the clamping assembly.Type: ApplicationFiled: February 18, 2022Publication date: November 24, 2022Inventors: YUAN-YU HWANG, XIAO-KANG YANG, QIN-XIANG LIU
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Patent number: 11471694Abstract: A floating type plasma electrode pad includes the plasma electrode made of a conductive metal thin film, a flexible dielectric thin film layered on the plasma electrode, and made of a polymer material, the dielectric thin film being spaced apart from the skin by a predetermined distance such that microdischarge is generated in a space defined between the dielectric thin film and the skin, and a spacer layered on the dielectric thin film, to space the dielectric film from the skin by the predetermined distance.Type: GrantFiled: February 8, 2019Date of Patent: October 18, 2022Assignee: SJ GLOBAL CO., LTD.Inventor: Yu An Hwang
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Publication number: 20220263504Abstract: The present invention relates to a new type of current driving circuit, which has high linearity during low current driving, comprising: a voltage-current conversion unit for converting an input voltage into a current; a digital analog converter (DAC) connected to an output terminal of the voltage-current conversion unit and for generating and outputting a voltage corresponding to an applied digital code; a field effect transistor having a first electrode connected to a load and a second electrode connected to a node connected to a resistor, and for allowing a current to flow to the load in response to a voltage applied to a gate; an amplifier for receiving the voltage output from the digital analog converter and a voltage generated by the resistor, generating a voltage for controlling such that a current flows from the field effect transistor, and applying same to the gate; a current supply source for supplying to the first electrode a current required for operating the field effect transistor in a saturatioType: ApplicationFiled: February 22, 2021Publication date: August 18, 2022Applicant: DONGWOON ANATECH CO., LTD.Inventors: Joon Seok LEE, Yu Hwang LEE, Jin PARK
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Patent number: 11189888Abstract: A mobile power pack combination of the present invention includes a first mobile power pack and at least a second mobile power pack. The first mobile power pack has a first housing. The first housing is disposed with a first charging unit and a first probe-type connector connected to the first charging unit. The second mobile power pack has a second housing. The second housing is disposed with a second charging unit, a first probe-type connector and a second probe-type connector connected to the second charging unit. When the second mobile power pack is stacked on the first mobile power pack, the second probe-type connector of the second mobile power pack is connected with the first probe-type connector of the first mobile power pack to make electric current conduct. Therefore, the mobile power pack combination provides charging function based on stackable technology and is convenient to carry.Type: GrantFiled: December 11, 2019Date of Patent: November 30, 2021Assignee: CHENG UEI PRECISION INDUSTRY CO., LTD.Inventors: Yu-Feng Liu, Yuan-Yu Hwang, Xiao-Kang Yang, Ren-Chun Zhong, Shao-Chun Li
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Publication number: 20210361963Abstract: A floating type plasma electrode pad includes the plasma electrode made of a conductive metal thin film, a flexible dielectric thin film layered on the plasma electrode, and made of a polymer material, the dielectric thin film being spaced apart from the skin by a predetermined distance such that microdischarge is generated in a space defined between the dielectric thin film and the skin, and a spacer layered on the dielectric thin film, to space the dielectric film from the skin by the predetermined distance.Type: ApplicationFiled: February 8, 2019Publication date: November 25, 2021Applicant: SJ GLOBAL CO., LTD.Inventor: Yu An HWANG
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Publication number: 20200388812Abstract: A mobile power pack combination of the present invention includes a first mobile power pack and at least a second mobile power pack. The first mobile power pack has a first housing. The first housing is disposed with a first charging unit and a first probe-type connector connected to the first charging unit. The second mobile power pack has a second housing. The second housing is disposed with a second charging unit, a first probe-type connector and a second probe-type connector connected to the second charging unit. When the second mobile power pack is stacked on the first mobile power pack, the second probe-type connector of the second mobile power pack is connected with the first probe-type connector of the first mobile power pack to make electric current conduct. Therefore, the mobile power pack combination provides charging function based on stackable technology and is convenient to carry.Type: ApplicationFiled: December 11, 2019Publication date: December 10, 2020Inventors: YU-FENG LIU, YUAN-YU HWANG, XIAO-KANG YANG, REN-CHUN ZHONG, SHAO-CHUN LI
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Publication number: 20160167518Abstract: A power heat dissipation device includes a heat-conducting layer, a heat sink and at least one thermoelectric cooling chip. The heat-conducting layer has a heat-absorbing-surface and a heat-dissipating-surface which are opposite to each other. The heat sink is in thermal contact with the heat-dissipating-surface of the heat-conducting layer. The at least one thermoelectric cooling chip is embedded in the heat-conducting layer. The heat-conducting layer has an effective heat-conducting-region. A1 is the area on the heat-absorbing-surface which the effective heat-conducting-region projects on, and A2 is the area on the heat-absorbing-surface which the thermoelectric cooling chip projects on. The ratio of A2 to A1 is between 0.15 and 0.58.Type: ApplicationFiled: October 21, 2015Publication date: June 16, 2016Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Po-Hua CHANG, Kou-Tzeng LIN, Chih-Yu HWANG, Min-Chuan WU, Wen-Shu CHIANG
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Patent number: 9052103Abstract: A flashlight holder assembly includes a supporting base device having a follower which includes a recess, and a flashlight has one end portion for engaging with the recess of the follower and for being supported in an erected position with the follower, the supporting base device includes a carrier, and the follower is pivotally attached onto the carrier and rotatable relative to the carrier between a folded position and an opened working position. The carrier and the follower each include one or more outwardly extended legs which are contactable with each other for limiting the follower to rotate relative to the carrier and for allowing the legs of the carrier and the follower to be rotated relative to each other.Type: GrantFiled: August 1, 2013Date of Patent: June 9, 2015Inventor: Chin Yu Hwang
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Patent number: D743074Type: GrantFiled: October 11, 2012Date of Patent: November 10, 2015Inventor: Chin-Yu Hwang
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Patent number: D875290Type: GrantFiled: September 5, 2018Date of Patent: February 11, 2020Assignee: METROMAX AMERICA CORPORATIONInventor: Jonathan Cheng Yu Hwang
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Patent number: D879714Type: GrantFiled: February 2, 2018Date of Patent: March 31, 2020Assignee: CHENG UEI PRECISION INDUSTRY CO., LTD.Inventors: Ji-Chang Zhang, Xiao-Kang Yang, Yuan-Yu Hwang
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Patent number: D973030Type: GrantFiled: February 26, 2021Date of Patent: December 20, 2022Assignee: DONG WOON ANATECH CO., LTDInventors: Yu-Hwang Lee, Jung-Hyun Eum, Ho-Cheol Jang
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Patent number: D989013Type: GrantFiled: August 2, 2021Date of Patent: June 13, 2023Assignee: DONG WOON ANATECH CO., LTDInventors: Yu-Hwang Lee, Jung-Hyun Eum, Ho-Cheol Jang