Patents by Inventor Xueyuan Zhang
Xueyuan Zhang 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: 10050434Abstract: An inrush current control device for an IC chip having multiple functional units and M power switches comprises a programmable counter unit, a selector unit and an enable signal driving unit. The programmable counter unit counts a clock signal and sets a predetermined counting value. The selector unit is connected to the programmable counter unit and has N output ports for outputting N enable signals. The enable signal driving unit has N enable driving circuits correspondingly connected to the N output ports of the selector unit, and controlling on/off states of N groups of the M power switches. The programmable counter unit controls the selector unit to output the N enable signals to the N enable signal driving circuits at a predetermined time interval determined by the predetermined counting value to switch on the N power switches groups successively to reduce the transient inrush current.Type: GrantFiled: June 30, 2017Date of Patent: August 14, 2018Assignee: SHANGHAI HUALI MICROELECTRONICS CORPORATIONInventor: Xueyuan Zhang
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Patent number: 9934735Abstract: A display control method and an electronic device are described. The electronic device includes a first body and a second body. Two sides of the first body include a first display area and a second display area respectively. The method includes: acquiring space position information of the first body and the second body, determining whether the space position information satisfies a first space predetermined condition, and obtaining a first determining result; detecting a first included angle between the first body and the second body if the first determining result indicates that the space position information satisfies the first space predetermined condition; determining whether the first included angle satisfies a first included angle predetermined condition, and switching an operating state of the electronic device to the triangle supporting state if the first included angle satisfies the first included angle predetermined condition.Type: GrantFiled: November 13, 2013Date of Patent: April 3, 2018Assignees: BEIJING LENOVO SOFTWARE LTD., LENOVO (BEIJING) CO., LTD.Inventors: Binbin Wei, Xueyuan Zhang, Haifang Tan, Shi Chen
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Publication number: 20170160924Abstract: For correcting an input operation performed on a virtual input unit, methods, apparatus, and computer program products are disclosed. The apparatus includes a display unit and a processor that presents a first key value in a display area on the display unit in response to receiving an input operation performed on a virtual input unit, detects a corrective operation performed on the virtual input unit, determines a second key value different than the first key value in response to detecting the corrective operation, and replaces the first key value with the second key value. In various embodiment, the apparatus includes a memory that stores code executable by the processor.Type: ApplicationFiled: December 8, 2016Publication date: June 8, 2017Inventors: Qingdi Xie, Xiaobing Guo, Xiaoping Zhang, Xueyuan Zhang
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Patent number: 9628863Abstract: A solution to enhance user experience in video communication and online game playing is presented in a digital data sharing environment for mobile communications devices. A first communication terminal receives video data and game data from a second communication terminal. The video data is from the video communication between the two terminals and the game data is from a game played on the two terminals while the video communication is in session. The first terminal combines the video data associated with the first terminal with the received video data to generate combined video data and combines game data associated with the first terminal with the received game data to generate combined game data. The first terminal determines a presentation strategy to display the combined video data and the combined game data on a display of the first communication terminal and display the combined video and game data accordingly.Type: GrantFiled: August 22, 2014Date of Patent: April 18, 2017Assignee: Palmwin Information Technology (Shanghai) Co. Ltd.Inventors: Huanan Ma, Xueyuan Zhang, Huaichang Zhang, Guoqiang Zhang
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Publication number: 20160349982Abstract: The present disclosure discloses an information processing method and an electronic device. The method comprises: detecting and acquiring a first touch operation on a touch display unit of the electronic device when M display objects are displayed on the touch display unit, wherein M is an integer greater than or equal to 1; and controlling N of the M display objects to be in a selected state in response to the first touch operation, and generating and executing a first operation instruction for implementing a first operation on the N display objects, wherein N is a positive integer less than or equal to M.Type: ApplicationFiled: September 18, 2015Publication date: December 1, 2016Inventors: Xiaoping Zhang, Qingdi Xie, Xueyuan Zhang, Qiang Yao
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Patent number: 9509851Abstract: An information processing method and an electronic device are provided, the method includes establishing, by a first electronic device, a call connection with a second electronic device through a first channel; acquiring, by the first electronic device, an input track of a third electronic device; determining, by the first electronic device, whether the input track meets a switching condition; and transmitting first switching information through the first channel in a case that said determining indicates that the input track meets the switching condition, the first switching information includes information for switching interfaces on the second electronic device.Type: GrantFiled: September 16, 2014Date of Patent: November 29, 2016Assignees: Beijing Lenovo Software Ltd., Lenovo (Beijing) Co., Ltd.Inventor: Xueyuan Zhang
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Publication number: 20160274634Abstract: The invention discloses a control method for an electronic device, wherein the electronic device includes a first assembly, a second assembly, a control device and a power supply device, the control method including: determining a position relation between the first assembly and the second assembly; determining a usage state of the electronic device based on the position relation; and controlling the power supply device to supply power to the electronic device, in a case that the usage state is a first state; or controlling the power supply device to supply power to only the control device, in a case that the usage state is a second state. It is further disclosed an electronic device and a control device for the electronic device in the invention.Type: ApplicationFiled: March 27, 2014Publication date: September 22, 2016Applicant: LENOVO (BEIJING) CO., LTD.Inventors: Weixing SHI, Xueyuan ZHANG
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Patent number: 9250723Abstract: A method and apparatus for stroke acquisition, and an ultrasonic electronic stylus are provided. The method is applied to the ultrasonic electronic stylus. In the case that the ultrasonic electronic stylus contacts with a writing board and a pressure generated on the writing board by the ultrasonic electronic stylus reaches a first predetermined value, the ultrasonic electronic stylus is controlled to generate a first signal so that a signal receiver of an electronic device acquires a first stroke based on the first signal. After the first signal is generated, an operation parameter of the ultrasonic electronic stylus is adjusted. In the case that the pressure is smaller than the first predetermined value and a preset condition is satisfied, a second signal is generated so that the electronic device continues to acquire a second stroke based on the second signal.Type: GrantFiled: March 28, 2014Date of Patent: February 2, 2016Assignee: Lenovo (Beijing) Co., Ltd.Inventor: Xueyuan Zhang
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Publication number: 20150352446Abstract: A solution to enhance user experience in video communication and online game playing is presented in a digital data sharing environment for mobile communications devices. A first communication terminal receives video data and game data from a second communication terminal. The video data is from the video communication between the two terminals and the game data is from a game played on the two terminals while the video communication is in session. The first terminal combines the video data associated with the first terminal with the received video data to generate combined video data and combines game data associated with the first terminal with the received game data to generate combined game data. The first terminal determines a presentation strategy to display the combined video data and the combined game data on a display of the first communication terminal and display the combined video and game data accordingly.Type: ApplicationFiled: August 22, 2014Publication date: December 10, 2015Inventors: Huanan Ma, Xueyuan Zhang, Huaichang Zhang, Guoqiang Zhang
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Publication number: 20150256682Abstract: An information processing method and an electronic device are provided, the method includes establishing, by a first electronic device, a call connection with a second electronic device through a first channel; acquiring, by the first electronic device, an input track of a third electronic device; determining, by the first electronic device, whether the input track meets a switching condition; and transmitting first switching information through the first channel in a case that said determining indicates that the input track meets the switching condition, the first switching information includes information for switching interfaces on the second electronic device.Type: ApplicationFiled: September 16, 2014Publication date: September 10, 2015Inventor: Xueyuan Zhang
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Publication number: 20150116288Abstract: A method and apparatus for stroke acquisition, and an ultrasonic electronic stylus are provided. The method is applied to the ultrasonic electronic stylus. In the case that the ultrasonic electronic stylus contacts with a writing board and a pressure generated on the writing board by the ultrasonic electronic stylus reaches a first predetermined value, the ultrasonic electronic stylus is controlled to generate a first signal so that a signal receiver of an electronic device acquires a first stroke based on the first signal. After the first signal is generated, an operation parameter of the ultrasonic electronic stylus is adjusted. In the case that the pressure is smaller than the first predetermined value and a preset condition is satisfied, a second signal is generated so that the electronic device continues to acquire a second stroke based on the second signal.Type: ApplicationFiled: March 28, 2014Publication date: April 30, 2015Applicant: Lenovo (Beijing) Co., Ltd.Inventor: Xueyuan Zhang
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Publication number: 20140232994Abstract: The present invention relates to electronic technology field, and more particularly to CRT and projection system. A low power laser CRT based on parallel flow electron gun comprises a vacuum tube, a laser panel provided at one end of the vacuum tube and an electron gun provided at the opposing end. The electron gun adopts a parallel flow electron gun, wherein the parallel flow electron gun comprises a negative electrode, a G1 electrode and a control electrode, wherein the control electrode is connected to an electron beam current control system. The electron gun of the present invention adopts parallel flow electron gun to emit electron beam, so that the laser panel has even current density distribution so as to average the power consumption of laser panel to reduce the energy that is converted to heat.Type: ApplicationFiled: May 29, 2012Publication date: August 21, 2014Inventors: Zhongping Xia, Jian Zhao, Yuan Yan, Xueyuan Zhang, Weijie Zhong
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Publication number: 20140132486Abstract: A display control method and an electronic device are described. The electronic device includes a first body and a second body. Two sides of the first body include a first display area and a second display area respectively. The method includes: acquiring space position information of the first body and the second body, determining whether the space position information satisfies a first space predetermined condition, and obtaining a first determining result; detecting a first included angle between the first body and the second body if the first determining result indicates that the space position information satisfies the first space predetermined condition; determining whether the first included angle satisfies a first included angle predetermined condition, and switching an operating state of the electronic device to the triangle supporting state if the first included angle satisfies the first included angle predetermined condition.Type: ApplicationFiled: November 13, 2013Publication date: May 15, 2014Applicants: Lenovo (Beijing) Co., Ltd., Beijing Lenovo Software Ltd.Inventors: Binbin Wei, Xueyuan Zhang, Haifang Tan, Shi Chen