Patents by Inventor Rongsheng Liu
Rongsheng Liu 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: 11930495Abstract: An IoT service of a provider network may be used to optimize downlink scheduling for edge devices that use a radio communication protocol (e.g., LoRaWAN). A processing instance receives DL packets from a client application that are to be sent to an edge device. The processing instance adds metadata entries (device ID, message ID) to a metadata queue and stores the DL packets into a data store. A scheduling instance obtains a metadata entry and the associated DL packet, formats the DL packet based on edge device information, and publishes the packet to a gateway topic. A separate connection instance receives the formatted DL packet and sends it to a gateway of the client network.Type: GrantFiled: March 31, 2021Date of Patent: March 12, 2024Assignee: Amazon Technologies, Inc.Inventors: Hongbo Tian, Rongsheng Huang, Jungtao Liu
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Patent number: 11488741Abstract: The present disclosure relates to a high-voltage (HV) bushing comprising a condenser core configured for surrounding a HV electrical conductor. The condenser core comprises an insulation material comprising wound layers of a permeable solid material impregnated with a thermo-reversible gel. The gel comprises an oil and a thickener, the oil comprising iso-paraffinic oil in an amount within the range of 0.1-100 wt % of the oil and the thickener comprising at least one copolymer in an amount within the range of 0.1-10 wt % of the gel.Type: GrantFiled: March 14, 2019Date of Patent: November 1, 2022Assignee: Hitachi Energy Switzerland AGInventors: Rongsheng Liu, Gerhard Brosig, Santanu Singha, Sung-Woo Cho, Johan Nyberg
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Publication number: 20220106536Abstract: A method of lubricating a bearing, a bearing, and a lubricant with high thermal conductivity including a base oil, a polymeric thickener, and thermally conductive powder particles. The lubricant is, at atmospheric pressure, liquid above a transition temperature and a gel below said transition temperature.Type: ApplicationFiled: August 16, 2021Publication date: April 7, 2022Applicant: Dodge Acquisition Co.Inventors: Jian Qin, Saeed Maleksaeedi, Mikael Unge, Rongsheng Liu, Santanu Singha
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Publication number: 20200411208Abstract: The present disclosure relates to a high-voltage (HV) bushing comprising a condenser core configured for surrounding a HV electrical conductor. The condenser core comprises an insulation material comprising wound layers of a permeable solid material impregnated with a thermo-reversible gel. The gel comprises an oil and a thickener, the oil comprising iso-paraffinic oil in an amount within the range of 0.1-100 wt % of the oil and the thickener comprising at least one copolymer in an amount within the range of 0.1-10 wt % of the gel.Type: ApplicationFiled: March 14, 2019Publication date: December 31, 2020Inventors: Rongsheng Liu, Gerhard Brosig, Santanu Singha, Sung-Woo Cho, Johan Nyberg
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Publication number: 20160049218Abstract: A transmission system includes an electrical conductor and an insulation layer circumferentially covering the conductor. The layer includes at least two layer sections including a plurality of sublayers concentrically orientated, whereby each sublayer comprises one or more strips arranged beside each other in a circumferential direction. Gaps are formed between adjacent edges of strips and each gap is covered by a strip of an adjacent sublayer. Each of the strips includes one or more sheets arranged beside each other in a radial direction. Each sheet includes an insulation material including cellulose paper and polymer. At least one sublayer includes at least one sheet of said cellulose paper, and at least one sublayer including at least one sheet of said polymer, and whereby the insulation layer is impregnated.Type: ApplicationFiled: April 5, 2013Publication date: February 18, 2016Applicant: ABB TECHNOLOGY LTDInventors: Rongsheng LIU, Ola HANSSON, Vijaya CHANDRAMOULI, Katarina WIGGINTON
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Patent number: 9129721Abstract: A direct current transmission system and a method for preparation including an electrical conductor layer, an inner semiconductive layer covering the conductor layer, an insulation layer provided on the semi-conductive layer including laminated polymer material and impregnated with a high viscosity fluid, and including an inner part, a middle part, an outer part, and an outer semi-conductive layer covering the insulation layer. The inner part has a first thickness, the middle part has a second thickness and the outer part has a third thickness, whereby the second thickness is greater than the first thickness and greater than the third thickness. The laminated polymer material within each part has a constant thickness and constant ratio of polymer to laminated material and wherein at least one of the parts has a thickness ratio of less than 35%.Type: GrantFiled: May 20, 2014Date of Patent: September 8, 2015Assignee: ABB Research Ltd.Inventor: Rongsheng Liu
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Publication number: 20140251654Abstract: A direct current transmission system and a method for preparation including an electrical conductor layer, an inner semiconductive layer covering the conductor layer, an insulation layer provided on the semi-conductive layer including laminated polymer material and impregnated with a high viscosity fluid, and including an inner part, a middle part, an outer part, and an outer semi-conductive layer covering the insulation layer. The inner part has a first thickness, the middle part has a second thickness and the outer part has a third thickness, whereby the second thickness is greater than the first thickness and greater than the third thickness. The laminated polymer material within each part has a constant thickness and constant ratio of polymer to laminated material and wherein at least one of the parts has a thickness ratio of less than 35%.Type: ApplicationFiled: May 20, 2014Publication date: September 11, 2014Inventor: Rongsheng Liu
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Patent number: 8596538Abstract: An exemplary barcode decoding chip includes a scan module, a boundary identification module, a direction identification module, a bar space boundary processing module, a symbol parameter identification module, a symbol character extraction module, and a decoding module.Type: GrantFiled: May 31, 2011Date of Patent: December 3, 2013Assignee: Fujian Newland Computer Co., Ltd.Inventors: Yali Sun, Dong Guo, Rongsheng Liu, Xianfu Wang, Lunyu Hu, Wenchuan Chen, Qiang Cai, Xiaodan Cai, Qingcai Zhang, Chunguang Zheng, Yousen Qiu, Zhilong Lin, Guoliang Zhuang, Zhiyu Wu
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Patent number: 8550352Abstract: An exemplary QR barcode decoding chip includes a characteristic searching unit configured for searching for a characteristic pattern in the barcode image to determine pixel coordinates of the characteristic pattern; a barcode parameter acquiring unit configured for acquiring a barcode parameter according to the pixel coordinates of the characteristic pattern; a version/format parameter acquiring unit configured for acquiring a version/format parameter; a correction characteristic acquiring unit configured for searching for a characteristic position in the barcode image and acquiring a correction characteristic according to the characteristic position; a module information processing unit configured for calculating a grayscale value corresponding to a module according to the version/format parameter, the barcode parameter and the correction characteristic; a binarizing unit configured for binarizing the module; a codeword extracting unit configured for extracting a codeword according to the binarized module; aType: GrantFiled: May 31, 2011Date of Patent: October 8, 2013Assignee: Fujian Newland Computer Co., Ltd.Inventors: Dong Guo, Rongsheng Liu, Xianfu Wang, Fusheng Lan
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Patent number: 8178780Abstract: An electric insulation material for an electric device includes one or several electrical conductors and an electric insulation material arranged around the conductor or between the conductors, which insulation material is impregnated with a dielectric insulation liquid. The electric insulation material includes a main layer that is provided with a surface layer that has a dielectric constant that is lower than the dielectric constant of the main layer.Type: GrantFiled: June 28, 2010Date of Patent: May 15, 2012Assignee: ABB Research Ltd.Inventors: Olof Hjortstam, Rongsheng Liu, Albert Jaksts, Gunilla Eken, legal representative, Leif A. Pettersson
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Publication number: 20110290877Abstract: An exemplary barcode decoding chip includes a scan module, a boundary identification module, a direction identification module, a bar space boundary processing module, a symbol parameter identification module, a symbol character acquisition module, and a decoding module.Type: ApplicationFiled: May 31, 2011Publication date: December 1, 2011Applicant: FUJIAN NEWLAND COMPUTER CO., LTD.Inventors: Yali Sun, Dong Guo, Rongsheng Liu, Xianfu Wang, Lunyu Hu, Wenchuan Chen, Qiang Cai, Xiaodan Cai, Qingcai Zhang, Chunguang Zheng, Yousen Qiu, Zhilong Lin, Guoliang Zhuang, Zhiyu Wu
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Publication number: 20110290879Abstract: An exemplary QR barcode decoding chip includes a characteristic searching unit configured for searching for a characteristic pattern in the barcode image to determine pixel coordinates of the characteristic pattern; a barcode parameter acquiring unit configured for acquiring a barcode parameter according to the pixel coordinates of the characteristic pattern; a version/format parameter acquiring unit configured for acquiring a version/format parameter; a correction characteristic acquiring unit configured for searching for a characteristic position in the barcode image and acquiring a correction characteristic according to the characteristic position; a module information processing unit configured for calculating a grayscale value corresponding to a module according to the version/format parameter, the barcode parameter and the correction characteristic; a binarizing unit configured for binarizing the module; a codeword extracting unit configured for extracting a codeword according to the binarized module; aType: ApplicationFiled: May 31, 2011Publication date: December 1, 2011Applicant: FUJIAN NEWLAND COMPUTER CO., LTD.Inventors: Dong Guo, Rongsheng Liu, Xianfu Wang, Fusheng Lan
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Publication number: 20110030987Abstract: An electric insulation material for an electric device includes one or several electrical conductors and an electric insulation material arranged around the conductor or between the conductors, which insulation material is impregnated with a dielectric insulation liquid. The electric insulation material includes a main layer that is provided with a surface layer that has a dielectric constant that is lower than the dielectric constant of the main layer.Type: ApplicationFiled: June 28, 2010Publication date: February 10, 2011Inventors: Olof Hjortstam, Rongsheng Liu, Albert Jaksts, Gunilla Eken, Leif A. Pettersson
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Patent number: 6885273Abstract: A distributed air gap material for a induction device in power systems for minimizing fringe losses, mechanical losses and noise in the core The distributed air gap material occupies a selected portion of the core and is formed of a finely divided magnetic material in a matrix of a dielectric material particles. The air gap material has a zone of transition in which the permeability values vary within the air gap material.Type: GrantFiled: February 14, 2002Date of Patent: April 26, 2005Assignee: ABB ABInventors: Pan Min, Li Ming, Rongsheng Liu, Mikael Dahlgren, Par Holmberg, Gunnar Russberg, Christian Sasse, Svante Söderholm
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Publication number: 20030030529Abstract: A distributed air gap material for a induction device in power systems for minimizing fringe losses, mechanical losses and noise in the core The distributed air gap material occupies a selected portion of the core and is formed of a finely divided magnetic material in a matrix of a dielectric material particles. The air gap material has a zone of transition in which the permeability values vary within the air gap material.Type: ApplicationFiled: February 14, 2002Publication date: February 13, 2003Inventors: Pan Min, Li Ming, Rongsheng Liu, Mikael Dahlgren, Par Holmberg, Gunnar Russberg, Christian Sasse, Svante Soderholm