Patents by Inventor Chun-Wan Chen
Chun-Wan Chen 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: 20240169813Abstract: A vibrotactile device and method including an audio signal input unit, manual parameter input unit, microcontroller, vibration motor controller, and at least one vibration motor are provided. The microcontroller is coupled to the audio signal input unit and manual parameter input unit. The vibration motor controller is coupled to the microcontroller and the at least one vibration motor. At least one signal is generated by at least the audio signal input unit or the manual parameter input unit. A modulated signal is generated based, in part, on a filtered signal from the audio signal input unit and a vibration duty cycle is generated, based on a tempo value and a note value of the manual parameter input unit, to generate at least one driving parameter, respectively. The vibration motor controller drives the at least one vibration motor based on the at least one driving parameter.Type: ApplicationFiled: November 23, 2023Publication date: May 23, 2024Inventors: Chi-Min LIN, Yao Shiao, Chun-Ta Chen, Shang che Lee, Ming Wan Lien
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Patent number: 11929398Abstract: Present disclosure provides a FinFET structure, including a substrate, a fin protruding from the substrate, including a first portion and a second portion below the first portion, wherein the first portion includes a first dopant concentration of a dopant, and the second portion includes a second dopant concentration of the dopant, the second dopant concentration is greater than the first dopant concentration, a gate over the fin, wherein the second portion of the fin is below a bottom surface of the gate, and an insulating layer over the substrate and proximal to the second portion of the fin, wherein at least a first portion of the insulating layer includes a third dopant concentration of the dopant, the third dopant concentration is greater than the first dopant concentration.Type: GrantFiled: June 1, 2021Date of Patent: March 12, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventors: Chun Hsiung Tsai, Lai-Wan Chong, Chien-Wei Lee, Kei-Wei Chen
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Patent number: 7819727Abstract: The present invention is a push-pull ventilation hood having a push device to obtain a push air flow and a pull device to exhaust contaminant flow with an exhaust opening and the two devices properly coordinated with each other, wherein, when the push flow flows through a contaminant source, a contaminated flow of the push flow is exhausted through the exhaust opening. Based on the design process according to the present invention, a push-pull hood with the highest efficiency of push velocity can be designed and the push-pull hood can economically and effectively control the contaminant source.Type: GrantFiled: July 8, 2004Date of Patent: October 26, 2010Assignee: Institute of Occupational Safety and Health Council of Labor AffairsInventors: Rong Fung Huang, Yu-Kang Chen, Tung-Sheng Shih, Cheng-Ping Chang, Wen-Yu Yeh, Chun-Wan Chen, Shin Yi Lin, Shun-Yuan Jan
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Publication number: 20100267321Abstract: A biological safety cabinet (BSC) has an air curtain to isolate air inside and outside the BSC. A most preferable slight concave curtain of air can be obtained. With the curtain, neither contamination in the BSC leaks out nor outside contamination enters the BSC. Furthermore, no circulation is formed in the BSC by blowing the air curtain. Thus, the operator using the BSC and the product in the BSC are both well protected.Type: ApplicationFiled: June 22, 2007Publication date: October 21, 2010Applicant: Institute of Occupational Safety and Health, Council of Labor Affairs, Executive YuanInventors: Rong Fung Huang, Tung-Sheng Shih, Cheng-Ping Chang, Chun-Wan Chen, Chen-Hsiung Hung
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Patent number: 7318771Abstract: The present invention is a fume hood capable of exhausting contaminant, having an air pipe in a sash and a suction slot corresponding to the air pipe deposed at the front rim of the bottom surface to obtain an air curtain, where contaminant is efficiently prevented from leakage and energy is saved.Type: GrantFiled: July 19, 2005Date of Patent: January 15, 2008Assignee: Institute of Occupational Safety and Health, Council of Labor AffairsInventors: Rong Fung Huang, Yu-Kang Chen, Tung-Sheng Shih, Cheng-Ping Chang, Chun-Wan Chen, Yi-Ta Wu, Hung-Ta Chen
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Publication number: 20070021047Abstract: The present invention is a fume hood capable of exhausting contaminant, having an air pipe in a sash and a suction slot corresponding to the air pipe deposed at the front rim of the bottom surface to obtain an air curtain, where contaminant is efficiently prevented from leakage and energy is saved.Type: ApplicationFiled: July 19, 2005Publication date: January 25, 2007Inventors: Rong Huang, Yu-Kang Chen, Tung-Sheng Shih, Cheng-Ping Chang, Chun-Wan Chen, Yi-Ta Wu, Hung-Ta Chen
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Publication number: 20070021046Abstract: The present invention is a fume hood with a mechanism of air suction together with air supply to save energy while locally exhausting pernicious gases near a contaminant source.Type: ApplicationFiled: July 19, 2005Publication date: January 25, 2007Inventors: Rong Huang, Yu-Kang Chen, Tung-Sheng Shih, Cheng-Plug Chang, Chun-Wan Chen, Yi-Ta Wu, Hung-Ta Chen
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Publication number: 20060009147Abstract: The present invention is a push-pull ventilation hood having a push device to obtain a push air flow and a pull device to exhaust contaminant flow with an exhaust opening and the two devices properly coordinated with each other, wherein, when the push flow flows through a contaminant source, a contaminated flow of the push flow is exhausted through the exhaust opening. Based on the design process according to the present invention, a push-pull hood with the highest efficiency of push velocity can be designed and the push-pull hood can economically and effectively control the contaminant source.Type: ApplicationFiled: July 8, 2004Publication date: January 12, 2006Inventors: Rong Huang, Yu-Kang Chen, Tung-Sheng Shih, Cheng-Ping Chang, Wen-Yu Yeh, Chun-Wan Chen, Shin Lin, Shun-Yuan Jan
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Patent number: 6705937Abstract: The present invention discloses an airflow capture booth with single-plate windbreak comprising an extracting means for extracting polluted air having an opening for air contamination extracting through and a crosswind device for simulating crosswind, the improvement comprises that said crosswind device having a single-plate windbreak perpendicular to an airflow direction of said crosswind having a specific distance to said opening of said extracting means for forming a capture zone, wherein the airflow of said capture zone is not easy to be shed and is extracted mostly by said extracting means.Type: GrantFiled: June 17, 2002Date of Patent: March 16, 2004Assignee: Institute of Occupation Safety and Health, Council of Labor Affairs Executive YuanInventors: Rong Fung Huang, Yu-Kang Chen, Wen-Yu Yeh, Chun-Wan Chen, Jin Hsun Liu
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Publication number: 20030232589Abstract: The present invention discloses an airflow capture booth with single-plate windbreak comprising an extracting means for extracting polluted air having an opening for air contamination extracting through and a crosswind device for simulating crosswind, the improvement comprises that said crosswind device having a single-plate windbreak perpendicular to an airflow direction of said crosswind having a specific distance to said opening of said extracting means for forming a capture zone, wherein the airflow of said capture zone is not easy to be shed and is extracted mostly by said extracting means.Type: ApplicationFiled: June 17, 2002Publication date: December 18, 2003Applicants: Institute of Occupation Safety and Health, Council of Labor Affairs, Executive YuanInventors: Rong Fung Huang, Yu-Kang Chen, Wen-Yu Yeh, Chun-Wan Chen, Jin Hsun Liu