Patents by Inventor Chan Fan
Chan Fan 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: 11948613Abstract: A method includes generating a first control signal and a second control signal; blending the first control signal and the second control signal based, at least in part, on a velocity; and positioning a read/write head based on the blending of the first control signal and the second control signal.Type: GrantFiled: June 15, 2022Date of Patent: April 2, 2024Assignee: Seagate Technology LLCInventors: Chan Fan Lau, Dong Wook Lee
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Publication number: 20240079229Abstract: The present disclosure provides a method of manufacturing a semiconductor device. The method includes: forming a transistor region in a substrate; forming a gate dielectric layer over the transistor region; forming a diffusion-blocking layer over the gate dielectric layer; forming a first portion of a work function layer over the diffusion-blocking layer; forming a second portion of the work function layer over the first portion of the work function layer; forming a plurality of barrier elements on or under a top surface of the second portion of the work function layer; and forming a gate electrode over the work function layer, wherein the plurality of barrier elements block oxygen from diffusing into the work function layer during the formation of the gate electrode.Type: ApplicationFiled: September 1, 2022Publication date: March 7, 2024Inventors: CHIA CHAN FAN, CHUNG-LIANG CHENG, CHIN-CHIA YEH, CHIEH CHIANG, CHENG YU PAI
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Publication number: 20230410842Abstract: A method includes generating a first control signal and a second control signal; blending the first control signal and the second control signal based, at least in part, on a velocity; and positioning a read/write head based on the blending of the first control signal and the second control signal.Type: ApplicationFiled: June 15, 2022Publication date: December 21, 2023Inventors: Chan Fan Lau, Dong Wook Lee
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Patent number: 11635793Abstract: Systems, methods, apparatuses for fan type identification are disclosed. A predetermined pulse width modulation duty cycle is used to obtain a sequence of fan speeds from a fan over a time period. A fan type of the fan is determined based on the sequence of fan speeds.Type: GrantFiled: May 6, 2020Date of Patent: April 25, 2023Assignee: LENOVO ENTERPRISE SOLUTIONS (SINGAPORE) PTE. LTD.Inventors: Ming Chang Chuang, Jui-Chan Fan, Yuhung Wang, Chenwei Lee, Edward Yu-Chen Kung
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Patent number: 11318613Abstract: Disclosed is a method and system for determining a motion path of a mechanical arm in which, after a kinematics model of a mechanical arm is established, multiple objective optimization functions are constructed according to the model, theoretical coordinates of a tail end of the arm, and an arm length. If a number of individuals in an evolutionary population, that makes both lateral and longitudinal error optimization functions in an optimization function monotonically increase or decrease, reaches the threshold, an optimal solution is determined using a single-objective evolutionary algorithm; otherwise, a multi-objective evolutionary algorithm is used. The multi- or single-objective evolutionary algorithms can be adaptively selected according to the number of individuals in the population that makes the lateral and longitudinal error optimization functions change.Type: GrantFiled: September 6, 2019Date of Patent: May 3, 2022Assignee: Xiangtan UniversityInventors: Juan Zou, Chan Fan, Xinghong Wu, Bin Deng, Qiuzhen Wang, Jinhua Zheng
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Patent number: 11240939Abstract: A heat dissipation control method includes determining a total power consumption of a heat generating component and a heat dissipating component, determining a heat dissipation parameter based on the total power consumption of the heat generating component and the heat dissipating component, and controlling an operating state of the heat dissipating component based on the heat dissipation parameter.Type: GrantFiled: December 26, 2019Date of Patent: February 1, 2022Assignee: LENOVO (BEIJING) CO., LTD.Inventors: Jui-Chan Fan, Jeng-Meng Lai
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Publication number: 20200356150Abstract: Systems, methods, apparatuses for fan type identification are disclosed. A predetermined pulse width modulation duty cycle is used to obtain a sequence of fan speeds from a fan over a time period. A fan type of the fan is determined based on the sequence of fan speeds.Type: ApplicationFiled: May 6, 2020Publication date: November 12, 2020Inventors: MING CHANG CHUANG, JUI-CHAN FAN, YUHUNG WANG, CHENWEI LEE, EDWARD YU-CHEN KUNG
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Patent number: 10754397Abstract: A water-cooled server and an electronic device are provided. The water-cooled server comprises a cooling main tubing, wherein the cooling main tubing guides cooling water; a drainage branch tubing operatively coupled to cooling main tubing; a piston having a first end disposed in the drainage branch tubing and a second end disposed in the cooling main tubing, wherein the first end drives the second end to a first position under pressure of the cooling water to prevent the second end from plugging the cooling main tubing; and an elastic member operatively coupled to the piston, wherein the elastic member drives the second end of the piston to move to a second position to plug the cooling main tubing. An elastic force applied to the piston by the elastic member is smaller than maximum pressure applied to the piston by the cooling water.Type: GrantFiled: April 2, 2019Date of Patent: August 25, 2020Assignee: LENOVO (BEIJING) CO., LTD.Inventors: Jui-Chan Fan, Jeng-Ming Lai, Ting Tian
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Publication number: 20200214179Abstract: A heat dissipation control method includes determining a total power consumption of a heat generating component and a heat dissipating component, determining a heat dissipation parameter based on the total power consumption of the heat generating component and the heat dissipating component, and controlling an operating state of the heat dissipating component based on the heat dissipation parameter.Type: ApplicationFiled: December 26, 2019Publication date: July 2, 2020Inventors: Jui-Chan FAN, Jeng-Meng LAI
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Publication number: 20200101608Abstract: The present invention discloses a method and system for determining a motion path of a mechanical arm. In the present invention, after a kinematics model of a mechanical arm is established, multiple objective optimization function are constructed according to the kinematic model, theoretical coordinates of a tail end of the mechanical arm, and an arm length.Type: ApplicationFiled: September 6, 2019Publication date: April 2, 2020Inventors: Juan Zou, Chan Fan, Xinghong Wu, Bin Deng, Qiuzhen Wang, Jinhua Zheng
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Publication number: 20190302859Abstract: A water-cooled server and an electronic device are provided. The water-cooled server comprises a cooling main tubing, wherein the cooling main tubing guides cooling water; a drainage branch tubing operatively coupled to cooling main tubing; a piston having a first end disposed in the drainage branch tubing and a second end disposed in the cooling main tubing, wherein the first end drives the second end to a first position under pressure of the cooling water to prevent the second end from plugging the cooling main tubing; and an elastic member operatively coupled to the piston, wherein the elastic member drives the second end of the piston to move to a second position to plug the cooling main tubing. An elastic force applied to the piston by the elastic member is smaller than maximum pressure applied to the piston by the cooling water.Type: ApplicationFiled: April 2, 2019Publication date: October 3, 2019Inventors: Jui-Chan FAN, Jeng-Ming LAI, Ting TIAN
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Patent number: 10111366Abstract: A cooling system includes a first heat exchanging component configured to connect to a heat source and obtain heat of the heat source by heat transfer, to dissipate heat of the heat source; and a first pipe configured to connect to the first heat exchanging component and a second heat exchanging component and form a loop between the first and second heat exchanging components, and to transfer the heat obtained by the first heat exchanging component to the second heat exchanging component via the loop. A first position relationship is provided between the first heat exchanging component and the second heat exchanging component, to allow a cooling liquid in the first pipe to automatically flow into the second heat exchanging component after the cooling liquid exchanges heat with the first heat exchanging component, to transfer the heat generated by the heat source to the second heat exchanging component.Type: GrantFiled: September 21, 2015Date of Patent: October 23, 2018Assignees: Beijing Lenovo Software Ltd., Lenovo (Beijing) Co., Ltd.Inventors: Jui-Chan Fan, Jeng-Ming Lai
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Patent number: 10002630Abstract: An apparatus includes a frequency analyzer circuitry, filter circuitry, and voice coil motor (VCM) control circuitry. The frequency analyzer circuitry is configured to detect one or more dominant frequencies of a position error signal (PES). The filter circuitry is configured to identify one or more filters in response to detecting the one or more dominant frequencies, apply the one or more identified filters to at least one of a microactuator control signal and PES, and generate a VCM compensation signal in response to the filtered PES or the microactuator control signal. The VCM control circuitry is configured to generate a VCM control signal in response to the VCM compensation signal.Type: GrantFiled: June 28, 2017Date of Patent: June 19, 2018Assignee: Seagate Technology LLCInventors: Hoang Dung Vu, Xiang Lu, GuoQing Zhang, Chan Fan Lau
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Patent number: 9986659Abstract: One embodiment provides rotating shaft, including: a spindle comprising an internal first channel; a wheel casing operatively coupled to the spindle, wherein the wheel casing comprises an internal second channel; and a bearing housing the spindle, comprising a third channel located between the bearing and the spindle; wherein the first channel, the second channel, and the third channel are located to form an enclosed annular channel configured to hold a substance. Other aspects are described and claimed.Type: GrantFiled: March 20, 2017Date of Patent: May 29, 2018Assignee: Lenovo (Beijing) LimitedInventors: Jui-Chan Fan, Jeng-Ming Lai
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Publication number: 20170268518Abstract: One embodiment provides rotating shaft, including: a spindle comprising an internal first channel; a wheel casing operatively coupled to the spindle, wherein the wheel casing comprises an internal second channel; and a bearing housing the spindle, comprising a third channel located between the bearing and the spindle; wherein the first channel, the second channel, and the third channel are located to form an enclosed annular channel configured to hold a substance. Other aspects are described and claimed.Type: ApplicationFiled: March 20, 2017Publication date: September 21, 2017Inventors: Jui-Chan Fan, Jeng-Ming Lai
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Patent number: 9564158Abstract: A method includes performing a first seek operation using a first voice coil motor (VCM) control signal by utilizing a first drag component value. The method further includes determining a position error signal (PES) and a DC offset component of the PES measured during the first seek operation, and determining that the DC offset component is above a predetermined threshold. In response to determining that the DC offset component is above the predetermined threshold, the method further includes determining a second drag component value different than the first drag component value. The method further includes generating a second VCM control signal by applying the second drag component value.Type: GrantFiled: May 12, 2016Date of Patent: February 7, 2017Assignee: Seagate Technology LLCInventors: Amar Nath, Ming Zhong Ding, Guo Quing Zhang, Chan Fan Lau
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Patent number: 9117471Abstract: An apparatus includes a controller configured to be coupled to a read/write head. The controller is configured to perform various operations including detecting a change in a time interval difference between servo sectors of a servo marked recording medium, converting the change to an offset signal that compensates for the change, and positioning the read/write head relative to the servo mark recording medium in response to the offset signal. The change in the time interval difference is representative of disk slip.Type: GrantFiled: December 19, 2014Date of Patent: August 25, 2015Assignee: SEAGATE TECHNOLOGY LLCInventors: Xiong Liu, Mingzhong Ding, KianKeong Ooi, Hoang Dung Vu, Chan Fan Lau, Xiang Lu
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Patent number: 7589969Abstract: A folding protective cover structure is used to cover and protect a heat-conductive medium disposed on the bottom surface of a heat sink device. An unfoldable plate body is employed and has a hollow portion, a folding portion, and an adhesive area; wherein the hollow portion is used for surrounding the heat-conductive medium with a frame-fixing plate extending from its edge, which is folded towards an opposite direction of the heat-conductive medium, so as to keep an upright state; the folding portion is folded towards the hollow portion, so that the frame-fixing plate passes through the folding portion to clip and fix the folding portion, thus forming an accommodating space for protecting the heat-conductive medium; and the adhesive area is located at the edge of the hollow portion, facing the surface of the heat sink device, for adhering and securing the plate body to the heat sink device.Type: GrantFiled: April 12, 2006Date of Patent: September 15, 2009Assignee: Inventec CorporationInventors: Feng-Ku Wang, Yi-Lun Cheng, Chun-Yi Chang, Jui-Chan Fan, Chun-Lung Lin, Chih-Kai Yang
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Patent number: 7436673Abstract: A fixing structure of heat conduction pad is used to uniformly press two heat conduction pads on the two heat generating electronic components on a circuit board respectively. The fixing structure includes a fixing member and an elastic member. The two ends of the elastic member are a fastening portion and a fixing portion respectively. The middle part of the elastic member is a pressing portion. In addition, a suspension arm is extended from the fixing portion. When the fastening portion is to be fasten on the circuit board and the fixing portion is to be fixed on the circuit board by the fixing member, the pressing portion presses one of the heat conduction pad on one of the heat generating electronic component, and the suspension arm presses the other heat conduction pad on the other heat generating electronic component.Type: GrantFiled: November 30, 2006Date of Patent: October 14, 2008Assignee: Inventec CorporationInventors: Feng-Ku Wang, Yi-Lun Cheng, Jui-Chan Fan, Chun-Yi Chang, Chun-Lung Lin, Chih-Kai Yang
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Publication number: 20080130240Abstract: A fixing structure of heat conduction pad is used to uniformly press two heat conduction pads on the two heat generating electronic components on a circuit board respectively. The fixing structure includes a fixing member and an elastic member. The two ends of the elastic member are a fastening portion and a fixing portion respectively. The middle part of the elastic member is a pressing portion. In addition, a suspension arm is extended from the fixing portion. When the fastening portion is to be fasten on the circuit board and the fixing portion is to be fixed on the circuit board by the fixing member, the pressing portion presses one of the heat conduction pad on one of the heat generating electronic component, and the suspension arm presses the other heat conduction pad on the other heat generating electronic component.Type: ApplicationFiled: November 30, 2006Publication date: June 5, 2008Applicant: INVENTEC CORPORATIONInventors: Feng-Ku Wang, Yi-Lun Cheng, Jui-Chan Fan, Chun-Yi Chang, Chun-Lung Lin, Chih-Kai Yang