Patents by Inventor Jie Duan
Jie Duan 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: 20240142175Abstract: Disclosed are an unblocking apparatus for a furnace discharging pipe and a use method. The unblocking apparatus includes a rail, a rail car that may move along the rail, an unblocking drive mechanism arranged on the rail car, a heat-unblocking component, a cold-unblocking component, and a material receiving component that is used to receive a blocking material in the discharging pipe, and a drive end of the unblocking drive mechanism is detachably connected with one end of the heat-unblocking component and the cold-unblocking component respectively. The present application effectively handles different blockage situations of the furnace discharging pipe by connecting the unblocking drive mechanism with an unblocking rod capable of heat-unblocking and a drilling rod capable of cold-unblocking, thereby two modes of heat-unblocking and cold-unblocking are performed on the furnace discharging pipe; and the discharging pipe may be unblocked by a remote operation.Type: ApplicationFiled: October 23, 2023Publication date: May 2, 2024Applicants: China Nuclear Sichuan Environmental Protection Engineering Co., Ltd., China Building Materials Academy, China Nuclear Power Engineering Co., Ltd.Inventors: Weidong XU, Yu CHANG, Yongchang ZHU, Hong DUAN, Chunyu TIAN, Wei WU, Debo YANG, Qingbin ZHAO, Shuaizhen WU, Lin WANG, Zhu CUI, Heyi GUO, Maosong FAN, Yuancheng SUN, Jie MEI, Xiaoli AN, Yongxiang ZHAO, Qinda LIU
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Publication number: 20230067666Abstract: The present invention relates to a method for preparing coumarin compounds substituted by amidoalkyl at 3-position, and related intermediates thereof. The method includes: Step (A): reacting a compound of formula (VI) with a compound of formula (V) to give a compound of formula (VII) wherein R1 and R2 are each independently selected from hydrogen, halogen, and —O(C1-8 alkyl), wherein the alkyl is optionally substituted with 1 or 2 groups selected from the group consisting of halogen, C1-8 alkyl substituted with 1-2 hydroxyl groups, —O(C1-8 alkyl); R3 is -L-C(O)NR5R6, L is C1-3 alkylene.Type: ApplicationFiled: December 30, 2020Publication date: March 2, 2023Inventors: Qingping ZENG, Ruiping WANG, Jie DUAN, Xudong WEI
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Publication number: 20190316593Abstract: A mounting apparatus used in a casing to mount a fan to a bracket and protect the electrical cables supplying the fan includes a pillar, a clipping member, and a connecting member. The pillar includes a first end and an opposite second end. The clipping member secures a cable of the fan and is fixed to the first end of the pillar. The connecting member mounting the fan is fixed to the second end of the pillar. The pillar defines a clipping slot for mounting to the bracket, the clipping slot is located between the first end and the second end.Type: ApplicationFiled: June 13, 2018Publication date: October 17, 2019Inventors: YING-JIE DUAN, YAN-NI YUAN, GONG-WEN ZHANG, HAN-YU LI
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Patent number: 10372652Abstract: A USB hub includes an upstream port; a first USB device control unit for performing packet format conversion; an FIFO circuit for storing data outputted from the first host; a second USB device control unit for performing packet format conversion; and a plurality of downstream ports. When any one of the downstream ports is coupled to the mobile device, if the first host commands the mobile device to switch to a host role from a device role, the mobile device temporarily disconnects from the USB hub, and the first host commands the USB hub to change an internal routing path. After the mobile device switches to the host role, the first host still performs the host role, and the first USB device control unit performs the device role; the mobile device performs the host role, and the second USB device control unit performs the device role.Type: GrantFiled: June 7, 2018Date of Patent: August 6, 2019Assignee: PROLIFIC TECHNOLOGY INC.Inventors: Tien-Wei Yu, Cheng-Sheng Chan, Chun-Hsu Chen, Ren-Jie Duan
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Patent number: 10253745Abstract: Methods and systems for diagnosis and control of an internal combustion engine using vibration data obtained from a vibration sensor mounted on the engine includes filtering vibration data within a predetermined engine combustion time period, where the vibration data is indicative of a vibration of an internal combustion engine, determining a peak cylinder pressure (PCP) of a combustion cycle of the internal combustion engine based on the filtered vibration data, determining a location of peak cylinder pressure (LPP) of the combustion cycle of the internal combustion engine based on the filtered vibration data, where the PCP and the LPP are indicative of a performance characteristic of the combustion cycle, and modifying an ignition timing of the internal combustion engine based on the determined PCP and LPP.Type: GrantFiled: December 19, 2016Date of Patent: April 9, 2019Assignee: Cummins, Inc.Inventors: Jie Duan, Richard A. Booth
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Publication number: 20190087375Abstract: A USB hub includes an upstream port; a first USB device control unit for performing packet format conversion; an FIFO circuit for storing data outputted from the first host; a second USB device control unit for performing packet format conversion; and a plurality of downstream ports. When any one of the downstream ports is coupled to the mobile device, if the first host commands the mobile device to switch to a host role from a device role, the mobile device temporarily disconnects from the USB hub, and the first host commands the USB hub to change an internal routing path. After the mobile device switches to the host role, the first host still performs the host role, and the first USB device control unit performs the device role; the mobile device performs the host role, and the second USB device control unit performs the device role.Type: ApplicationFiled: June 7, 2018Publication date: March 21, 2019Applicant: PROLIFIC TECHNOLOGY INC.Inventors: Tien-Wei YU, Cheng-Sheng CHAN, Chun-Hsu CHEN, Ren-Jie DUAN
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Patent number: 10212847Abstract: An air guiding duct and casing providing easy access for fan maintenance and electronic devices using the air guiding duct are disclosed. The air guiding duct includes a first guiding plate and a second guiding plate. The first guiding plate includes a first pivoting portion and first extension panels. The second guiding plate includes a second pivoting portion and second extension panels. The first guiding plate is rotatably connected to the second guiding plate, and can be in a first position to align with the second guiding plate and join each first extension panel with a second extension panel, to define air guiding channels for heat dissipation, and a second position, where the first guiding plate is tilted with a predetermined angle relative to the second guiding plate.Type: GrantFiled: April 13, 2018Date of Patent: February 19, 2019Assignee: HONGFUJIN PRECISION ELECTRONICS (TIANJIN) CInventors: Yan-Ni Yuan, Ying-Jie Duan, Gong-Wen Zhang, Han-Yu Li
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Publication number: 20170211538Abstract: Methods and systems for diagnosis and control of an internal combustion engine using vibration data obtained from a vibration sensor mounted on the engine includes filtering vibration data within a predetermined engine combustion time period, where the vibration data is indicative of a vibration of an internal combustion engine, determining a peak cylinder pressure (PCP) of a combustion cycle of the internal combustion engine based on the filtered vibration data, determining a location of peak cylinder pressure (LPP) of the combustion cycle of the internal combustion engine based on the filtered vibration data, where the PCP and the LPP are indicative of a performance characteristic of the combustion cycle, and modifying an ignition timing of the internal combustion engine based on the determined PCP and LPP.Type: ApplicationFiled: December 19, 2016Publication date: July 27, 2017Applicant: Cummins Inc.Inventors: Jie Duan, Richard A. Booth
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Patent number: 9365771Abstract: This invention relates to liquid crystal compound of formula I containing a difluoromethyleneoxy linking group that hydrogen substituted by deuterium and therefore being very suitable for formulating a liquid crystal mixture. A liquid crystal mixture containing such type of liquid crystal compounds can be applied in various display devices.Type: GrantFiled: July 3, 2014Date of Patent: June 14, 2016Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO., LTD.Inventors: Wen Hai Lu, Ze Feng Hou, Xing Zhang, Guo Liang Yun, Rui Mao Hua, Jin Wang, Ya Jie Duan
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Publication number: 20140312276Abstract: This invention relates to liquid crystal compound of formula I containing a difluoromethyleneoxy linking group that hydrogen substituted by deuterium and therefore being very suitable for formulating a liquid crystal mixture. A liquid crystal mixture containing such type of liquid crystal compounds can be applied in various display devices.Type: ApplicationFiled: July 3, 2014Publication date: October 23, 2014Inventors: Wen Hai LU, Ze Feng HOU, Xing ZHANG, Guo Liang YUN, Rui Mao HUA, Jin WANG, Ya Jie DUAN
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Patent number: 8600069Abstract: A multiple error filtered-x least mean square (MEFxLMS) algorithm using a channel equalization virtual secondary path for an active noise control/cancellation (ANC) system for treating noise in a Multiple-Input Multiple-Output (MIMO) system. The channel equalization technique equalizes amplitude levels of the estimated response of all primary channels to overcome limitations caused by the frequency dependent property of standard filtered-x least mean square (FxLMS) algorithm, reduce the variation of convergence speed existed in the multiple channels, and improve the overall performance of the control system. The convergence property of the algorithm is analyzed in the frequency domain.Type: GrantFiled: March 25, 2011Date of Patent: December 3, 2013Assignee: Ford Global Technologies, LLCInventors: Ming-Ran Lee, Takeshi Abe, Ming-te Cheng, Frederick Wayne Vanhaaften, Teik Lim, Mingfeng Li, Jie Duan
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Publication number: 20110235693Abstract: A multiple error filtered-x least mean square (MEFxLMS) algorithm using a channel equalization virtual secondary path for an active noise control/cancellation (ANC) system for treating noise in a Multiple-Input Multiple-Output (MIMO) system. The channel equalization technique equalizes amplitude levels of the estimated response of all primary channels to overcome limitations caused by the frequency dependent property of standard filtered-x least mean square (FxLMS) algorithm, reduce the variation of convergence speed existed in the multiple channels, and improve the overall performance of the control system. The convergence property of the algorithm is analyzed in the frequency domain.Type: ApplicationFiled: March 25, 2011Publication date: September 29, 2011Applicant: Ford Global Technologies, LLCInventors: Ming-Ran Lee, Takeshi Abe, Ming-te Cheng, Frederick Wayne Vanhaaften, Teik Lim, Mingfeng Li, Jie Duan