Patents by Inventor Huan Lei
Huan Lei 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: 20190058472Abstract: An impedance calibration device provided includes a timing device, a first transmitter, a first variable resistor, a second variable resistor and a first receiver. The first variable resistor is used to receive a first adjustment code. The second variable resistor is used to receive a second adjustment code. The first receiver generates a first contact digital signal according to a first contact voltage. The first receiver generates a first terminate digital signal according to a first terminate voltage and the first adjustment code. The first receiver generates a first load digital signal according to a load voltage and the second adjustment. The timing device dynamically adjust the first adjustment code and the second adjustment code according to the first contact digital signal, the first terminate digital signal and the first load digital signal.Type: ApplicationFiled: May 21, 2018Publication date: February 21, 2019Inventors: CHENG-PANG CHAN, CHIEN-MING WU, LIANG-HUAN LEI, JIAN-RU LIN
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Publication number: 20190058467Abstract: A switching circuit includes: a main switch array including multiple main switch elements respectively arranged on multiple main signal paths configured in a parallel connection, wherein the multiple main signal paths are coupled with a first circuit node; a main switch control circuit for controlling the multiple main switch elements; an auxiliary switch array including multiple auxiliary switch elements respectively arranged on multiple auxiliary signal paths configured in a parallel connection, wherein the multiple auxiliary signal paths are also coupled with the first circuit node; and an auxiliary switch control circuit for controlling the multiple auxiliary switch elements so as to maintain a total number of turned-on switch elements in the main switch array and the auxiliary switch array to be equal to or more than a threshold quantity.Type: ApplicationFiled: June 7, 2018Publication date: February 21, 2019Applicant: Realtek Semiconductor Corp.Inventors: Cheng-Pang CHAN, Liang-Huan LEI
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Patent number: 10211831Abstract: An impedance calibration device provided includes a timing device, a first transmitter, a first variable resistor, a second variable resistor and a first receiver. The first variable resistor is used to receive a first adjustment code. The second variable resistor is used to receive a second adjustment code. The first receiver generates a first contact digital signal according to a first contact voltage. The first receiver generates a first terminate digital signal according to a first terminate voltage and the first adjustment code. The first receiver generates a first load digital signal according to a load voltage and the second adjustment. The timing device dynamically adjust the first adjustment code and the second adjustment code according to the first contact digital signal, the first terminate digital signal and the first load digital signal.Type: GrantFiled: May 21, 2018Date of Patent: February 19, 2019Assignee: REALTEK SEMICONDUCTOR CORP.Inventors: Cheng-Pang Chan, Chien-Ming Wu, Liang-Huan Lei, Jian-Ru Lin
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Patent number: 10084412Abstract: This disclosure provides a charging-steering amplifier circuit and the control method thereof. The charging-steering amplifier circuit includes a charging-steering differential amplifier and a sample and hold circuit. The charging-steering amplifier circuit operates in a reset phase or in an amplifying phase to amplify a differential input signal. The control method includes steps of: in the reset phase, obtaining a common mode voltage of the differential input signal according to the differential input signal; in the reset phase, providing the common mode voltage to one of the charging-steering differential amplifier and the sample and hold circuit; in the reset phase, sampling the differential input signal by the sample and hold circuit to generate a voltage signal; and in the amplifying phase, inputting the voltage signal to the charging-steering differential amplifier.Type: GrantFiled: September 21, 2017Date of Patent: September 25, 2018Assignee: REALTEK SEMICONDUCTOR CORPORATIONInventors: Liang-Huan Lei, Cheng-Pang Chan, Chih-Lung Chen, Shih-Hsiung Huang
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Publication number: 20180212422Abstract: The present invention discloses an electrostatic discharge (ESD) protection circuit, including: a first terminal configured to receive a first voltage; a second terminal configured to receive a second voltage; a detection voltage generating circuit configured to provide a detection voltage according to the first voltage and the second voltage; a warning circuit configured to generate a control signal according to the detection voltage, in which the control signal indicates a normal condition when the detection voltage satisfies predetermined voltage setting, and the control signal indicates an abnormal condition when the detection voltage does not satisfy the predetermined voltage setting; and a protected circuit configured to carry out a self-protection operation when receiving the control signal indicating the abnormal condition.Type: ApplicationFiled: January 24, 2018Publication date: July 26, 2018Inventors: CHIEN-MING WU, JIAN-RU LIN, LIANG-HUAN LEI, CHENG-PANG CHAN
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Publication number: 20180191307Abstract: This disclosure provides a charging-steering amplifier circuit and the control method thereof. The charging-steering amplifier circuit includes a charging-steering differential amplifier and a sample and hold circuit. The charging-steering amplifier circuit operates in a reset phase or in an amplifying phase to amplify a differential input signal. The control method includes steps of: in the reset phase, obtaining a common mode voltage of the differential input signal according to the differential input signal; in the reset phase, providing the common mode voltage to one of the charging-steering differential amplifier and the sample and hold circuit; in the reset phase, sampling the differential input signal by the sample and hold circuit to generate a voltage signal; and in the amplifying phase, inputting the voltage signal to the charging-steering differential amplifier.Type: ApplicationFiled: September 21, 2017Publication date: July 5, 2018Inventors: LIANG-HUAN LEI, CHENG-PANG CHAN, CHIH-LUNG CHEN, SHIH-HSIUNG HUANG
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Publication number: 20180136681Abstract: The present invention discloses a voltage reference buffer circuit. An embodiment of the voltage reference buffer circuit includes: a first bias generator configured to generate a first bias voltage; a second bias generator configured to generate a second bias voltage different from the first bias voltage; a first driving component coupled to a high voltage terminal, the first bias generator and a reference voltage output terminal, and configured to control a reference voltage at the reference voltage output terminal according to the first bias voltage; and a second driving component coupled to the reference voltage output terminal, the second bias generator and a low voltage terminal, and configured to control a current between the reference voltage output terminal and the second driving component according to the second bias voltage.Type: ApplicationFiled: November 1, 2017Publication date: May 17, 2018Inventors: CHE-WEI CHANG, KAI-YIN LIU, LIANG-HUAN LEI, SHIH-HSIUNG HUANG
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Patent number: 9016745Abstract: A pick up mechanism includes a pick up rod, a pick up head, and a resisting assembly. The pick up head is assembled to an end of the pick up rod. The resisting assembly includes a guiding seat, a resisting member, a pair of guiding rods, and a pair of elastic members. The guiding seat is fixedly sleeved on the pick up rod, the resisting member slidably shields the pick up head. The pair of guiding rods is fixed on the guiding seat, and blocks the resisting member. The pair of elastic members is resisted between the guiding seat and the resisting member, wherein the pick up head is exposed or shielded by moving the resisting member relative to the pick up rod.Type: GrantFiled: December 13, 2013Date of Patent: April 28, 2015Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Cheng-Huan Lei, Yong-Feng Wang, Yun Zhao, Zhi-Tang Dai, Dong Li, Sha Shen
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Publication number: 20140175818Abstract: A pick up mechanism includes a pick up rod, a pick up head, and a resisting assembly. The pick up head is assembled to an end of the pick up rod. The resisting assembly includes a guiding seat, a resisting member, a pair of guiding rods, and a pair of elastic members. The guiding seat is fixedly sleeved on the pick up rod, the resisting member slidably shields the pick up head. The pair of guiding rods is fixed on the guiding seat, and blocks the resisting member. The pair of elastic members is resisted between the guiding seat and the resisting member, wherein the pick up head is exposed or shielded by moving the resisting member relative to the pick up rod.Type: ApplicationFiled: December 13, 2013Publication date: June 26, 2014Applicants: HON HAI PRECISION INDUSTRY CO., LTD., Fu Tai Hua Industry (Shenzhen) Co., Ltd.Inventors: CHENG-HUAN LEI, YONG-FENG WANG, YUN ZHAO, ZHI-TANG DAI, DONG LI, SHA SHEN
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Publication number: 20130323530Abstract: An active solder is revealed. The active solder includes an active material and a metal substrate. There are two kinds of active materials, titanium together with rare earth elements and magnesium. The metal substrate is composed of a main component and an additive. The main component is tin-zinc alloy and the additive is selected from bismuth, indium, silver, copper or their combinations. The active solder enables targets and backing plates to be joined with each other directly in the atmosphere. The target is ceramic or aluminum with low wetting properties. The bonding temperature of the active solder ranges from 150° C. to 200° C. so that the problem of thermal stress can be avoided.Type: ApplicationFiled: August 7, 2013Publication date: December 5, 2013Applicant: NATIONAL YUNLIN UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Shih-Ying CHANG, Lung-Chuan TSAO, Tung-Han CHUANG, Yen-Huan LEI, Cheng-Kai LI, Wei-Chia HUANG
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Publication number: 20130029178Abstract: An active solder is revealed. The active solder includes an active material and a metal substrate. There are two kinds of active materials, titanium together with rare earth elements and magnesium. The metal substrate is composed of a main component and an additive. The main component is tin-zinc alloy and the additive is selected from bismuth, indium, silver, copper or their combinations. The active solder enables targets and backing plates to be joined with each other directly in the atmosphere. The target is ceramic or aluminum with low wetting properties. The bonding temperature of the active solder ranges from 150° C. to 200° C. so that the problem of thermal stress can be avoided.Type: ApplicationFiled: July 27, 2011Publication date: January 31, 2013Inventors: Shih-Ying CHANG, Lung-Chuan Tsao, Tung-Han Chuang, Yen-Huan Lei, Cheng-Kai Li, Wei-Chia Huang
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Publication number: 20120060371Abstract: The present invention relates to a method for manufacturing a two-phase flow heat sink. The two-phase flow heat sink comprises an evaporation chamber and a capillary layer. The material of the capillary layer, which has at least a porous structure, is cooled and disposed on the inner side of the evaporation chamber from a melted state. The method first sprays the thermally melted material of the capillary layer on the substrate of the evaporation chamber for forming the capillary layer on the substrate. Because the capillary layer is sprayed on the substrate of the evaporation chamber, the capillary layer is distributed irregularly on the substrate and forming irregularly distributed holes. Thereby, the flowing space for fluids in the evaporation chamber is increased, and hence enhancing the heat transfer efficiency of the heat sink.Type: ApplicationFiled: October 14, 2010Publication date: March 15, 2012Applicant: NATIONAL YUNLIN UNIVERSITY OF SCIENCE & TECHNOLOGYInventors: SHIH-YING CHANG, YEN-HUAN LEI, WEI-SHEN CHEN, JI-RONG FU
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Publication number: 20110180060Abstract: A pavement element is revealed. The pavement element includes a thermally conductive covering element and a solar collector frame. The thermally conductive covering element is a foamed metal disposed with a plurality of through holes for providing slip resistance and drainage function. Moreover, the solar collector frame collects heat and then the heat is transferred to the thermally conductive covering element so as to cause high temperature for killing insect larvae or eggs attached to the thermally conductive covering element.Type: ApplicationFiled: June 23, 2010Publication date: July 28, 2011Applicant: NATIONAL YUNLIN UNIVERSITY OF SCIENCE & TECHNOLOGYInventors: Shih-Ying Chang, Yen-Huan Lei
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Publication number: 20060292693Abstract: The present invention provides a monoclonal antibody capable of neutralizing EV71 infection.Type: ApplicationFiled: April 12, 2006Publication date: December 28, 2006Applicant: ScinoPharm Taiwan, Ltd.Inventors: Jui-Hung Yen, Hung-Jung Wang, Huan Lei, Chun-Keung Yu, Ya-Fang Wang