Patents by Inventor Xiaoming Yuan
Xiaoming Yuan 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: 11949827Abstract: Various embodiments disclose a method for operating a printer apparatus that includes a print head. The method includes causing a media hub to retract a media in a retract direction along a media path. Further, the method includes causing a first media sensor to generate a first signal during retraction of the media. Furthermore, the method includes monitoring the first signal to detect at least one of a leading edge or a trailing edge of a label of the plurality of labels. Upon detecting the at least one of the leading edge or the trailing edge of the label, causing the media hub to retract the media by at least a predetermined distance, wherein the predetermined distance is a distance between the print head and the first media sensor.Type: GrantFiled: April 28, 2023Date of Patent: April 2, 2024Assignee: Hand Held Products, Inc.Inventors: Ramanathan Alaganchetty, Boon Kheng Lim, Rajan Narayanaswami, Qibao Yu, Jian Zeng, Hongqiang Liu, Quanjin Shi, Zhiyong Zhu, Yun Huang, Xiaoming Yuan
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Publication number: 20230262181Abstract: Various embodiments disclose a method for operating a printer apparatus that includes a print head. The method includes causing a media hub to retract a media in a retract direction along a media path. Further, the method includes causing a first media sensor to generate a first signal during retraction of the media. Furthermore, the method includes monitoring the first signal to detect at least one of a leading edge or a trailing edge of a label of the plurality of labels. Upon detecting the at least one of the leading edge or the trailing edge of the label, causing the media hub to retract the media by at least a predetermined distance, wherein the predetermined distance is a distance between the print head and the first media sensor.Type: ApplicationFiled: April 28, 2023Publication date: August 17, 2023Inventors: Ramanathan ALAGANCHETTY, Boon Kheng LIM, Rajan NARAYANASWAMI, Qibao YU, Jian ZENG, Hongqiang LIU, Quanjin SHI, Zhiyong ZHU, Yun HUANG, Xiaoming YUAN
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Patent number: 11665295Abstract: Various embodiments disclose a method for operating a printer apparatus that includes a print head. The method includes causing a media hub to retract a media in a retract direction along a media path. Further, the method includes causing a first media sensor to generate a first signal during retraction of the media. Furthermore, the method includes monitoring the first signal to detect at least one of a leading edge or a trailing edge of a label of the plurality of labels. Upon detecting the at least one of the leading edge or the trailing edge of the label, causing the media hub to retract the media by at least a predetermined distance, wherein the predetermined distance is a distance between the print head and the first media sensor.Type: GrantFiled: March 8, 2022Date of Patent: May 30, 2023Assignee: Hand Held Products, Inc.Inventors: Ramanathan Alaganchetty, Boon Kheng Lim, Rajan Narayanaswami, Qibao Yu, Jian Zeng, Hongqiang Liu, Quanjin Shi, Zhiyong Zhu, Yun Huang, Xiaoming Yuan
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Patent number: 11534637Abstract: The present invention discloses a Fire-fighting water cannon comprising: a first motor assembly including a first housing, a first stator assembly, a first rotor assembly and a central shaft; both ends of the first housing are respectively provided with a first end cover and a second end cover, the first end of the first stator assembly is connected with the second end cover, the first rotor assembly is sleeved on the outside of the first stator assembly, and the first rotor assembly is rotatably connected with the first housing; the cannon head assembly including a first cannon head and a second cannon head, the first cannon head is connected with the first stator assembly, the second cannon head is sleeved on the outside of the first cannon head, and the second cannon head is threadedly connected with the first rotor assembly, the first cannon head is provided with a first anti-rotation device; the cannon core assembly is arranged on the central axis and cooperates with the cannon head assembly.Type: GrantFiled: March 24, 2021Date of Patent: December 27, 2022Assignee: Yanshan UniversityInventors: Xiaoming Yuan, Yue Tang, Haodong Pang, Xuemei Zong, Bing He, Lijie Zhang
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Publication number: 20220201140Abstract: Various embodiments disclose a method for operating a printer apparatus that includes a print head. The method includes causing a media hub to retract a media in a retract direction along a media path. Further, the method includes causing a first media sensor to generate a first signal during retraction of the media. Furthermore, the method includes monitoring the first signal to detect at least one of a leading edge or a trailing edge of a label of the plurality of labels. Upon detecting the at least one of the leading edge or the trailing edge of the label, causing the media hub to retract the media by at least a predetermined distance, wherein the predetermined distance is a distance between the print head and the first media sensor.Type: ApplicationFiled: March 8, 2022Publication date: June 23, 2022Inventors: Ramanathan ALAGANCHETTY, Boon Kheng LIM, Rajan NARAYANASWAMI, Qibao YU, Jian ZENG, Hongqiang LIU, Quanjin SHI, Zhiyong ZHU, Yun HUANG, Xiaoming YUAN
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Patent number: 11303773Abstract: Various embodiments disclose a method for operating a printer apparatus that includes a print head. The method includes causing a media hub to retract a media in a retract direction along a media path. Further, the method includes causing a first media sensor to generate a first signal during retraction of the media. Furthermore, the method includes monitoring the first signal to detect at least one of a leading edge or a trailing edge of a label of the plurality of labels. Upon detecting the at least one of the leading edge or the trailing edge of the label, causing the media hub to retract the media by at least a predetermined distance, wherein the predetermined distance is a distance between the print head and the first media sensor.Type: GrantFiled: November 4, 2019Date of Patent: April 12, 2022Assignee: DATAMAX-O'NEIL CORPORATIONInventors: Ramanathan Alaganchetty, Boon Kheng Lim, Rajan Narayanaswami, Qibao Yu, Jian Zeng, Hongqiang Liu, Quanjin Shi, Zhiyong Zhu, Yun Huang, Xiaoming Yuan
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Publication number: 20210299493Abstract: The present invention discloses a Fire-fighting water cannon comprising: a first motor assembly including a first housing, a first stator assembly, a first rotor assembly and a central shaft; both ends of the first housing are respectively provided with a first end cover and a second end cover, the first end of the first stator assembly is connected with the second end cover, the first rotor assembly is sleeved on the outside of the first stator assembly, and the first rotor assembly is rotatably connected with the first housing; the cannon head assembly including a first cannon head and a second cannon head, the first cannon head is connected with the first stator assembly, the second cannon head is sleeved on the outside of the first cannon head, and the second cannon head is threadedly connected with the first rotor assembly, the first cannon head is provided with a first anti-rotation device; the cannon core assembly is arranged on the central axis and cooperates with the cannon head assembly.Type: ApplicationFiled: March 24, 2021Publication date: September 30, 2021Inventors: Xiaoming Yuan, Yue Tang, Haodong Pang, Xuemei Zong, Bing He, Lijie Zhang
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Publication number: 20200145546Abstract: Various embodiments disclose a method for operating a printer apparatus that includes a print head. The method includes causing a media hub to retract a media in a retract direction along a media path. Further, the method includes causing a first media sensor to generate a first signal during retraction of the media. Furthermore, the method includes monitoring the first signal to detect at least one of a leading edge or a trailing edge of a label of the plurality of labels. Upon detecting the at least one of the leading edge or the trailing edge of the label, causing the media hub to retract the media by at least a predetermined distance, wherein the predetermined distance is a distance between the print head and the first media sensor.Type: ApplicationFiled: November 4, 2019Publication date: May 7, 2020Inventors: Ramanathan ALAGANCHETTY, Boon Kheng LIM, Rajan NARAYANASWAMI, Qibao YU, Jian ZENG, Hongqiang LIU, Quanjin SHI, Zhiyong ZHU, Yun HUANG, Xiaoming YUAN
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Patent number: 10411627Abstract: An AC excitation synchronous condenser and a control method, an AC-excitation induction machine, a full-controlled AC excitation converter, a grid-side converter and a controller. The AC-excitation induction machine is the core power converting device, and its stator and rotor windings are AC windings with terminals. The controller is configured to control the full-controlled AC excitation converter to perform excitation and speed regulation on the AC-excitation induction machine and also control the grid-side converter to ensure the excitation capability of the full-controlled AC excitation converter, so that support and regulation of the active power and reactive power are achieved.Type: GrantFiled: March 23, 2018Date of Patent: September 10, 2019Assignee: Huazhong University of Science and TechnologyInventors: Jiabing Hu, Yuanzhu Chang, Enbo Zhang, Xiaoming Yuan
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Publication number: 20190199255Abstract: An AC excitation synchronous condenser and a control method, an AC-excitation induction machine, a full-controlled AC excitation converter, a grid-side converter and a controller. The AC-excitation induction machine is the core power converting device, and its stator and rotor windings are AC windings with terminals. The controller is configured to control the full-controlled AC excitation converter to perform excitation and speed regulation on the AC-excitation induction machine and also control the grid-side converter to ensure the excitation capability of the full-controlled AC excitation converter, so that support and regulation of the active power and reactive power are achieved.Type: ApplicationFiled: March 23, 2018Publication date: June 27, 2019Applicant: Huazhong University of Science and TechnologyInventors: Jiabing HU, Yuanzhu CHANG, Enbo ZHANG, Xiaoming YUAN
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Patent number: 10084403Abstract: A power supply system, including an energy module, a controlled object, an active power controller, and an inertia-synchronization controller. The input end of the energy module operates to acquire external energy, a first output end of the energy module is connected to the controlled object, and the energy module operates to transform the acquired external energy into electric energy, or transform electric energy into electric energy having a different frequency therefrom. The input end of the active power controller is connected to a second output end of the energy module, the output end of the active power controller is connected to the controlled object, and the active power controller operates to control output active power of the controlled object. The input end of the inertia-synchronization controller operates to connect with an AC system. The output end of the inertia-synchronization controller is connected to the controlled object.Type: GrantFiled: March 27, 2015Date of Patent: September 25, 2018Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Xiaoming Yuan, Jiabing Hu, Wei He, Xuejun Xiong
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Patent number: 9516723Abstract: A system having an alternating current (AC) driven LED unit, an AC voltage regulator, and a controller is provided. The AC driven LED unit includes a first LED and a second LED coupled in reverse parallel. The AC voltage regulator is operable to receive AC voltage originating from an AC voltage source, regulate the AC voltage according to control signals from the controller, and apply regulated AC voltage to the AC driven LED unit, so as to enable the first LED and the second LED to emit light according to the regulated AC voltage. In addition, a method is provided for driving the LED by regulating the AC voltage. By regulating the AC voltage using the AC voltage regulator, benefits of restraining voltage fluctuations, reducing THD, improving power factor, providing dimming control, and mitigating flicker phenomenon can be achieved.Type: GrantFiled: June 14, 2011Date of Patent: December 6, 2016Assignee: GENERAL ELECTRIC COMPANYInventors: Saijun Mao, Yunfeng Liu, Xiaoming Yuan, Yingqi Zhang, Charles Adrian Becker, Junhui Fei, Jian Wang
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Publication number: 20160285400Abstract: A power supply system, including an energy module, a controlled object, an active power controller, and an inertia-synchronization controller. The input end of the energy module operates to acquire external energy, a first output end of the energy module is connected to the controlled object, and the energy module operates to transform the acquired external energy into electric energy, or transform electric energy into electric energy having a different frequency therefrom. The input end of the active power controller is connected to a second output end of the energy module, the output end of the active power controller is connected to the controlled object, and the active power controller operates to control output active power of the controlled object. The input end of the inertia-synchronization controller operates to connect with an AC system. The output end of the inertia-synchronization controller is connected to the controlled object.Type: ApplicationFiled: March 27, 2015Publication date: September 29, 2016Inventors: Xiaoming YUAN, Jiabing HU, Wei HE, Xuejun XIONG
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Patent number: 9190923Abstract: A system for power conversion includes a power converter having switching elements, a detector, and a controller is provided. The detector detects a parameter and provides electrical signals indicative of the parameter. The controller receives the electrical signals transmitted from the detector, and sends commands to instruct the power converter to perform power conversion by operating the switching elements in accordance with switching signals at a different frequency in response to a detection of the system condition. A method for operating the system is also provided.Type: GrantFiled: May 30, 2012Date of Patent: November 17, 2015Assignee: General Electric CompanyInventors: Xiaoming Yuan, Haiqing Weng, Zhuohui Tan, Yunfeng Liu, Wenqiang Yang, Pengcheng Zhu
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Patent number: 8848400Abstract: A system and method are provided for performing reactive power control. The system includes a power converter and a controller coupled to the power converter. The power converter is configured to convert a first form of electric power generated from the power source to a second form of electric power suitable to be distributed by the electrical grid. The controller is configured to monitor the electric power transmitted between the power converter and the electrical grid. The controller is further configured to decouple a positive sequence component and a negative sequence component from the monitored electric power. The controller is further configured to perform a positive reactive power control and a negative reactive power control with respect to the decoupled positive and negative sequence components. The controller is further configured to transmit a control signal to the power converter based on the positive and negative reactive power control.Type: GrantFiled: February 15, 2012Date of Patent: September 30, 2014Assignee: General Electric CompanyInventors: Xiaoming Yuan, Zhuohui Tan, Anthony Michael Klodowski
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Patent number: 8547715Abstract: A converter system comprises a DC to AC converter, a maximum power point tracking device, and an array-side control. The DC link converts DC from a photovoltaic array to AC for a grid. The maximum power point tracking device is coupled to the array. The array-side control, which is coupled to the DC to AC converter and the device, prevents overvoltage in the DC bus of the DC to AC converter using array voltage and current data from the device and DC bus voltage data from the DC to AC converter during a grid transient by adjusting a maximum power point of the array to increase array voltage.Type: GrantFiled: September 15, 2010Date of Patent: October 1, 2013Assignee: General Electric CompanyInventors: Xiaoming Yuan, Zhuohui Tan, Haiqing Weng
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Publication number: 20130207622Abstract: A system and method are provided for performing reactive power control. The system includes a power converter and a controller coupled to the power converter. The power converter is configured to convert a first form of electric power generated from the power source to a second form of electric power suitable to be distributed by the electrical grid. The controller is configured to monitor the electric power transmitted between the power converter and the electrical grid. The controller is further configured to decouple a positive sequence component and a negative sequence component from the monitored electric power. The controller is further configured to perform a positive reactive power control and a negative reactive power control with respect to the decoupled positive and negative sequence components. The controller is further configured to transmit a control signal to the power converter based on the positive and negative reactive power control.Type: ApplicationFiled: February 15, 2012Publication date: August 15, 2013Inventors: Xiaoming YUAN, Zhuohui Tan, Anthony Michael Klodowski
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Publication number: 20130134710Abstract: A system for power conversion includes a power converter having switching elements, a detector, and a controller is provided. The detector detects a parameter and provides electrical signals indicative of the parameter. The controller receives the electrical signals transmitted from the detector, and sends commands to instruct the power converter to perform power conversion by operating the switching elements in accordance with switching signals at a different frequency in response to a detection of the system condition. A method for operating the system is also provided.Type: ApplicationFiled: May 30, 2012Publication date: May 30, 2013Inventors: Xiaoming Yuan, Haiqing Weng, Zhuohui Tan, Yunfeng Liu, Wenqiang Yang, Pengcheng Zhu
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Publication number: 20130119882Abstract: A system having an alternating current (AC) driven LED unit, an AC voltage regulator, and a controller is provided. The AC driven LED unit includes a first LED and a second LED coupled in reverse parallel. The AC voltage regulator is operable to receive AC voltage originating from an AC voltage source, regulate the AC voltage according to control signals from the controller, and apply regulated AC voltage to the AC driven LED unit, so as to enable the first LED and the second LED to emit light according to the regulated AC voltage. In addition, a method is provided for driving the LED by regulating the AC voltage. By regulating the AC voltage using the AC voltage regulator, benefits of restraining voltage fluctuations, reducing THD, improving power factor, providing dimming control, and mitigating flicker phenomenon can be achieved.Type: ApplicationFiled: June 14, 2011Publication date: May 16, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Saijun Mao, Yunfeng Liu, Xiaoming Yuan, Yingqi Zhang, Charles Adrian Becker, Junhui Fei, Jian Wang
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Patent number: 8344550Abstract: A power generation system includes a renewable power source for producing source power; a source side converter for converting the source power to converted DC power; a source side controller for driving the converted DC power towards a maximum power point; a DC link for receiving the converted DC power; a grid side converter coupled to the DC link for converting DC link power from the DC link to AC output power for a grid; a grid side controller for controlling the AC output power of the grid side converter to achieve grid interconnection requirements; an electrical energy storage device; an energy storage converter coupling the energy storage device to the DC link; an energy storage controller for controlling the energy storage converter to achieve a desired power balance on the DC link.Type: GrantFiled: December 21, 2010Date of Patent: January 1, 2013Assignee: General Electric CompanyInventors: Robert William Delmerico, Xiaoming Yuan