Patents by Inventor Xiaojuan Zhang
Xiaojuan 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: 10412573Abstract: Embodiments of this application provide a near-field wireless communication service processing method performed at a first computing device. While running a social networking application, the first computing device listens to a near-field wireless communication signal broadcasted by a second computing device. After detecting the near-field wireless communication signal broadcasted by the second computing device, first computing device processes the near-field wireless communication signal to obtain identification information associated with the second computing device. The first computing device sends the identification information associated with the second computing device to a remote server supporting the social networking application and obtains a preset service page corresponding to the identification information associated with the second computing device from the server, and displays the preset service page within the social networking application on the first computing device.Type: GrantFiled: August 6, 2018Date of Patent: September 10, 2019Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Kai Ma, Maohua Chen, Mo Zhao, Zhenxi Qiu, Xiaoming Wu, Nan Cheng, Xiaohui Zheng, Junxiong Chen, Jinheng Xie, Zhe Cheng, Le Yu, Shuhui Mei, Chi Zhang, Huiqin Yang, Yao Qin, Shunfu Ye, Tao Zhang, Wenrong Tang, Yangbin Huang, Ming He, Chaoxiong Diao, Pengbo Zhang, Guanqiao Su, Hongmin Zheng, Xiaojuan Zhang, Zhejin Huang, Xiaoyang Qian, Zhongming Guo, Xiaoyi Fang, Yang Zuo, Yan Dai
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Publication number: 20190268196Abstract: The present invention discloses a method and system for processing frequency offset, the method includes: obtaining a current frequency offset state; determining whether the current frequency offset state is consistent with a historical effective frequency offset state; wherein the historical effective frequency offset state is a frequency offset state corresponding to a correct decoding result; if it is determined yes, performing a pre-compensation to a fine frequency offset estimation according to the historical effective frequency offset state. The present application solves the problem that inaccurate frequency offset estimation makes it unable to perform frequency offset compensate.Type: ApplicationFiled: September 27, 2016Publication date: August 29, 2019Applicant: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTDInventors: Yuetan CHEN, Xiaojuan ZHANG
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Publication number: 20190169147Abstract: The present application provides a vortioxetine pamoic acid salt, which includes a crystal form, a solvate or an amorphous substance of the vortioxetine pamoic acid salt. The present application provides a preparation method and use of the vortioxetine pamoic acid salt and the crystal form thereof. The vortioxetine pamoic acid salt prepared in the present application prolongs the residence time of the vortioxetine in vivo, achieving a slow release of the vortioxetine in vivo, and is suitable for preparing a long-acting dosage form.Type: ApplicationFiled: March 28, 2017Publication date: June 6, 2019Inventors: Yunfei LI, Xiaoer XIA, Xin XU, Zhen ZHANG, Lei LIU, Xiaojuan ZHANG, Liming ZHANG, Dongsheng LI, Yijin WANG, Jian GE
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Patent number: 10243634Abstract: A method and device for dual layer beamforming are disclosed to solve the problems of bad beam directivity and poor beamforming effect in current methods for beamforming wherein the method comprises: receiving sounding reference signal (SRS) sent by the terminal wherein the broadband occupied when sending the SRS is divided into a plurality of sub-bands by the terminal; determining the broadband beamforming vector corresponding to the broadband and the sub-band beamforming vector corresponding to each sub-band respectively according to the SRS; determining two polarized-direction beamforming vectors corresponding to each sub-band respectively according to the broadband beamforming vector corresponding to the broadband or the sub-band beamforming vector corresponding to each sub-band; and directed to each sub-band, adopting the two polarized-direction beamforming vectors corresponding to the sub-band for dual layer beamforming.Type: GrantFiled: February 9, 2015Date of Patent: March 26, 2019Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.Inventors: Xi Wang, Xiaojuan Zhang
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Publication number: 20190075531Abstract: The invention relates to the technical field of communications, and more particularly, to a method and device for realizing synchronization. The method comprises: performing, by a base station, and according to an SRS signal transmitted by a terminal, filtering to obtain a RRU channel having the maximum receiving power in a current operation; upon determining that the RRU channel having the maximum receiving power in the current operation is different from a RRU channel used in the currently performed demodulation, refraining from performing immediate switching; and permitting switching of the RRU channel only when the receiving power of the RRU channel is determined to match the maximum threshold of a preset series of thresholds, and transmitting a TA command word to the terminal while switching the RRU channel to complete synchronization with the terminal. The invention prevents a terminal from frequently switching between RRU channels on a subframe basis.Type: ApplicationFiled: February 14, 2017Publication date: March 7, 2019Inventors: XiaoJuan ZHANG, Gang Wu, Xi WANG
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Publication number: 20180352415Abstract: Embodiments of this application provide a near-field wireless communication service processing method performed at a first computing device. While running a social networking application, the first computing device listens to a near-field wireless communication signal broadcasted by a second computing device. After detecting the near-field wireless communication signal broadcasted by the second computing device, first computing device processes the near-field wireless communication signal to obtain identification information associated with the second computing device. The first computing device sends the identification information associated with the second computing device to a remote server supporting the social networking application and obtains a preset service page corresponding to the identification information associated with the second computing device from the server, and displays the preset service page within the social networking application on the first computing device.Type: ApplicationFiled: August 6, 2018Publication date: December 6, 2018Inventors: Kai MA, Maohua CHEN, Mo ZHAO, Zhenxi QIU, Xiaoming WU, Nan CHENG, Xiaohui ZHENG, Junxiong CHEN, Jinheng XIE, Zhe CHENG, Le YU, Shuhui MEI, Chi ZHANG, Huiqin YANG, Yao QIN, Shunfu YE, Tao ZHANG, Wenrong TANG, Yangbin HUANG, Ming HE, Chaoxiong DIAO, Pengbo ZHANG, Guanqiao SU, Hongmin ZHENG, Xiaojuan ZHANG, Zhejin HUANG, Xiaoyang QIAN, Zhongming GUO, Xiaoyi FANG, Yang ZUO, Yan DAI
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Publication number: 20170019161Abstract: A method and device for dual layer beamforming are disclosed to solve the problems of bad beam directivity and poor beamforming effect in current methods for beamforming wherein the method comprises: receiving sounding reference signal (SRS) sent by the terminal wherein the broadband occupied when sending the SRS is divided into a plurality of sub-bands by the terminal; determining the broadband beamforming vector corresponding to the broadband and the sub-band beamforming vector corresponding to each sub-band respectively according to the SRS; determining two polarized-direction beamforming vectors corresponding to each sub-band respectively according to the broadband beamforming vector corresponding to the broadband or the sub-band beamforming vector corresponding to each sub-band; and directed to each sub-band, adopting the two polarized-direction beamforming vectors corresponding to the sub-band for dual layer beamforming.Type: ApplicationFiled: February 9, 2015Publication date: January 19, 2017Applicant: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.Inventors: Xi WANG, Xiaojuan ZHANG
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Patent number: 9456442Abstract: The embodiments of the present invention disclose a reference signal sending method and apparatus. The method includes: determining, by a network node, ports and the number of layers used for transmitting downlink specific reference signals to user equipment; generating, by the network node, downlink control signaling according to the ports and the number of layers, wherein 5-bits signaling in the downlink control signaling is used to indicate the user equipment the ports and the number of layers used for transmitting the downlink specific reference signals, in order to support multiplexing of at most eight user equipment; and sending, by the network node, the downlink control signaling to the user equipment, and sending the downlink specific reference signals to the user equipment according to the determined ports and the number of layers. By adopting the present invention, the maximum number of multiplexed streams may be increased.Type: GrantFiled: January 26, 2015Date of Patent: September 27, 2016Assignee: Huawei Technologies Co., Ltd.Inventor: Xiaojuan Zhang
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Publication number: 20160265742Abstract: An LED light module for illuminating a target plane is provided. The LED light module includes a first LED source, a second LED source disposed adjacent the first LED source, a first lens covering the first LED source, and a second lens covering the second LED source. The first lens is configured to direct first light beams emitted from the first light source to the target plane. The second lens is configured to direct second light beams emitted from the second light source to the target plane. At least one of the first and second lenses is shaped to have an asymmetrical profile. A backlighting system and a fixture incorporating the LED light module are also provided.Type: ApplicationFiled: October 31, 2013Publication date: September 15, 2016Inventors: Suping WANG, Jeffrey Marc NALL, Brian Morgan SPAHNIE, Xiaojuan ZHANG, Yan NI, Shanshan XIE
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Publication number: 20150173052Abstract: The embodiments of the present invention disclose a reference signal sending method and apparatus. The method includes: determining, by a network node, ports and the number of layers used for transmitting downlink specific reference signals to user equipment; generating, by the network node, downlink control signaling according to the ports and the number of layers, wherein 5-bits signaling in the downlink control signaling is used to indicate the user equipment the ports and the number of layers used for transmitting the downlink specific reference signals, in order to support multiplexing of at most eight user equipment; and sending, by the network node, the downlink control signaling to the user equipment, and sending the downlink specific reference signals to the user equipment according to the determined ports and the number of layers. By adopting the present invention, the maximum number of multiplexed streams may be increased.Type: ApplicationFiled: January 26, 2015Publication date: June 18, 2015Inventor: Xiaojuan ZHANG
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Patent number: 8558023Abstract: A process for preparing an enantiomerically enriched cycloalkene-substituted alanine compound having the structure: by asymmetrically hydrogenating a dehydro amino acid compound having the structure: in a suitable reaction media in the presence of a catalyst having a transition metal moiety complexed to a chiral phosphine ligand to prepare enantiomerically enriched cycloalkene substituted alanine compounds having the structure of Formula (IA) or (IB), which are key intermediates for the ACE inhibitors ramipril and perindolpril:Type: GrantFiled: April 20, 2011Date of Patent: October 15, 2013Assignee: Chiral Quest, Inc.Inventors: Zijun Liu, Sanhui Lin, Wenge Li, Jingyang Zhu, Xinjun Liu, Xiaojuan Zhang, Hui Lu, Fei Xiong, Zhongwei Tian
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Publication number: 20110257408Abstract: A process for preparing an enantiomerically enriched cycloalkene-substituted alanine compound having the structure: by asymmetrically hydrogenating a dehydro amino acid compound having the structure: in a suitable reaction media in the presence of a catalyst having a transition metal moiety complexed to a chiral phosphine ligand to prepare enantiomerically enriched cycloalkene substituted alanine compounds having the structure of Formula (IA) or (IB), which are key intermediates for the ACE inhibitors ramipril and perindolpril:Type: ApplicationFiled: April 20, 2011Publication date: October 20, 2011Applicant: Chiral Quest, Inc.Inventors: Zijun Liu, Sanhui Lin, Wenge Li, Jingyang Zhu, Xinjun Liu, Xiaojuan Zhang, Hui Lu, Fei Xiong, Zhongwei Tian