Patents by Inventor Dandan Wang
Dandan Wang 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: 20210054011Abstract: The present disclosure relates to the field of pharmacology, and in particular, to a preparation method of high-purity total ginkgo flavonol glycoside. The preparation method of high-purity total ginkgo flavonol glycoside includes: (1) mixing Ginkgo biloba extract powder and a first alkaline solution, subjecting to dissolution and centrifugation to obtain a supernatant; (2) subjecting the supernatant to separation with an acid-polar coupled macroporous resin column and to purification with a polyamide column, to obtain high-purity total ginkgo flavonol glycoside. The purity of the total ginkgo flavonol glycoside prepared by the preparation method of high-purity total ginkgo flavonol glycoside according to the present disclosure is ?90%, and has good clinical application prospects; the preparation process does not require organic reagents such as petroleum ether and ethyl acetate, which is environmentally friendly; the transfer rate of the total flavonol glycoside is high.Type: ApplicationFiled: April 10, 2018Publication date: February 25, 2021Applicant: SPH Xing Ling Sci. & Tech. Pharmaceutical Co., Ltd.Inventors: Shuang LIANG, Xiangwei ZHENG, Qi GAO, Dandan WANG, Guoqin ZHU
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Patent number: 10657143Abstract: Attribute information of a pending data handling process to be performed is identified. Historical data handling processes for a same application scenario as the pending data handling process are identified based on the attribute information. A time that each identified historical data handling process is performed and methods used to perform the identified historical data handling processes are also identified. A weighting coefficient for each identified historical data handling process is determined. Weighted identified historical data handling processes are calculated by applying the weight coefficient to each identified historical data handling process. A recommended weight for each method used to perform the identified historical data handling processes is determined by combining weighted identified historical data handling processes that use the same method. A method that has the highest recommended weight to perform the pending data handling process is recommended.Type: GrantFiled: September 27, 2017Date of Patent: May 19, 2020Assignee: Alibaba Group Holding LimitedInventors: Dandan Wang, Xiaofeng Pan, Di Xu
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Patent number: 10588955Abstract: Provided are a fusion protein of a pneumococcal surface adhesin A (PsaA) and a pneumococcal surface protein A (PspA), and preparation method and use thereof. Also provide are a nucleic acid for encoding the protein, carrier and cell for expressing the protein, and vaccine composition comprising the protein.Type: GrantFiled: March 29, 2016Date of Patent: March 17, 2020Assignees: Changchun BCHT Biotechnology Co., Jilin UniversityInventors: Wei Kong, Yongge Wu, Jingcai Lu, Tianxu Sun, Man Xu, Dandan Wang, Hongjia Hou, Yunliang Dong
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Patent number: 10582332Abstract: The present disclosure generally discloses an autonomous localization capability configured to determine the localization of a mobile device of a wireless communication network based on a sequence of observations reported by the mobile device and a model that represents the motion and observations of mobile devices of the wireless communication network. The model that represents the motion and observations of the mobile devices may be a Hidden Markov Model (HMM) constructed based on use of localization information to define the hidden states of the and use of signal strength measurement reporting information to define possible observations. The localization problem for determining a localization of a given mobile device then becomes a maximum a posterior problem represented by the HMM, which may be solved using a particle filter based localization algorithm using localization probability distribution information which may be determined based on signal strength measurement reporting information.Type: GrantFiled: December 11, 2017Date of Patent: March 3, 2020Assignee: Nokia of America CorporationInventors: Pantelis Monogioudis, Tahsina Farah Sanam, Dandan Wang
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Patent number: 10565216Abstract: Attribute information of a pending data handling process to be performed is identified. Historical data handling processes for a same application scenario as the pending data handling process are identified based on the attribute information. A time that each identified historical data handling process is performed and methods used to perform the identified historical data handling processes are also identified. A weighting coefficient for each identified historical data handling process is determined. Weighted identified historical data handling processes are calculated by applying the weight coefficient to each identified historical data handling process. A recommended weight for each method used to perform the identified historical data handling processes is determined by combining weighted identified historical data handling processes that use the same method. A method that has the highest recommended weight to perform the pending data handling process is recommended.Type: GrantFiled: September 27, 2017Date of Patent: February 18, 2020Assignee: Alibaba Group Holding LimitedInventors: Dandan Wang, Xiaofeng Pan, Di Xu
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Publication number: 20190371945Abstract: A method of forming a wedge-shaped fiber array and a bottom base according to a probing pad layout of a Si-Photonic device to enable optical, DC and RF mixed signal tests to be performed at the same time and the resulting device are provided. Embodiments include a bottom base; and a fiber array with sidewalls and a top surface having a first angle and a second angle, respectively, over the bottom base, wherein the fiber array is structured to expose bond pads of a Si-Photonic device during wafer level Si-Photonic testing.Type: ApplicationFiled: June 1, 2018Publication date: December 5, 2019Inventors: Dandan WANG, Lei ZHU, Zhihong MAI, Jeffery Chor-Keung LAM
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Patent number: 10497820Abstract: A method of forming a wedge-shaped fiber array and a bottom base according to a probing pad layout of a Si-Photonic device to enable optical, DC and RF mixed signal tests to be performed at the same time and the resulting device are provided. Embodiments include a bottom base; and a fiber array with sidewalls and a top surface having a first angle and a second angle, respectively, over the bottom base, wherein the fiber array is structured to expose bond pads of a Si-Photonic device during wafer level Si-Photonic testing.Type: GrantFiled: June 1, 2018Date of Patent: December 3, 2019Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.Inventors: Dandan Wang, Lei Zhu, Zhihong Mai, Jeffrey Chor-Keung Lam
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Publication number: 20190182614Abstract: The present disclosure generally discloses an autonomous localization capability configured to determine the localization of a mobile device of a wireless communication network based on a sequence of observations reported by the mobile device and a model that represents the motion and observations of mobile devices of the wireless communication network. The model that represents the motion and observations of the mobile devices may be a Hidden Markov Model (HMM) constructed based on use of localization information to define the hidden states of the and use of signal strength measurement reporting information to define possible observations. The localization problem for determining a localization of a given mobile device then becomes a maximum a posterior problem represented by the HMM, which may be solved using a particle filter based localization algorithm using localization probability distribution information which may be determined based on signal strength measurement reporting information.Type: ApplicationFiled: December 11, 2017Publication date: June 13, 2019Inventors: Pantelis MONOGIOUDIS, Tahsina Farah SANAM, Dandan WANG
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Patent number: 10235595Abstract: Provided is a value bill identifying method, which includes: step 1, collecting, by a color collection device including multiple color sensors, color data of a to-be-detected value bill and preprocessing the collected color data; step 2, extracting a feature from the preprocessed color data; step 3, matching the extracted feature with feature template sets corresponding to each type of value bills, to obtain matching scores, and regarding a feature template with the highest score as a matched template of the color data; and step 4, determining a type of the value bill based on a matching result.Type: GrantFiled: April 6, 2016Date of Patent: March 19, 2019Assignee: GRG Banking Equipment Co., Ltd.Inventors: Xuyao Yue, Zhuming Xiao, Dandan Wang, Xiaoqun Huang
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Publication number: 20180214530Abstract: Provided are a fusion protein of a pneumococcal surface adhesin A (PsaA) and a pneumococcal surface protein A (PspA), and preparation method and use thereof. Also provide are a nucleic acid for encoding the protein, carrier and cell for expressing the protein, and vaccine composition comprising the protein.Type: ApplicationFiled: March 29, 2016Publication date: August 2, 2018Inventors: Wei KONG, Yongge WU, Jingcai LU, Tianxu SUN, Man XU, Dandan WANG, Hongjia HOU, Yunliang DONG
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Publication number: 20180152969Abstract: The present invention provides a method of triggering a LBT random backoff mechanism in LTE LAA, the method comprising: evaluating a current channel to obtain a first parameter characterizing a congestion state of the current channel; comparing the first parameter with a first threshold to obtain a first comparison result; and adapting a contention window size based on the first comparison result. The method further comprises comparing the first parameter with a second threshold to obtain a second comparison result; and adapting the contention window size based on the second comparison result. The first parameter is a packet error rate metric or a collision metric.Type: ApplicationFiled: May 12, 2016Publication date: May 31, 2018Applicant: ALCATEL LUCENTInventors: Tao Tao, Jianguo Liu, Feng Han, Yan Meng, Sigen Ye, Junrong Gu, Dandan Wang, Gang Shen
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Patent number: 9980278Abstract: A base station schedules one or more user equipment of a plurality of user equipment for wireless communication in a transmission time interval (TTI) based on a plurality of weights associated with the plurality of user equipment. In response to scheduling the one or more user equipment in the TTI, the base station modifies the plurality of weights associated with the plurality of user equipment based on a plurality of elapsed times since the plurality of user equipment were last scheduled.Type: GrantFiled: June 16, 2016Date of Patent: May 22, 2018Assignee: Alcatel-Lucent USA Inc.Inventors: Yang Yang, Dandan Wang
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Publication number: 20180101749Abstract: Provided is a value bill identifying method, which includes: step 1, collecting, by a color collection device including multiple color sensors, color data of a to-be-detected value bill and preprocessing the collected color data; step 2, extracting a feature from the preprocessed color data; step 3, matching the extracted feature with feature template sets corresponding to each type of value bills, to obtain matching scores, and regarding a feature template with the highest score as a matched template of the color data; and step 4, determining a type of the value bill based on a matching result.Type: ApplicationFiled: April 6, 2016Publication date: April 12, 2018Applicant: GRG Banking Equipment Co., Ltd.Inventors: Xuyao Yue, Zhuming Xiao, Dandan Wang, Xiaoqun Huang
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Publication number: 20180085070Abstract: Methods and apparatuses (10) for detecting body-related temperature changes are provided. The method comprises measuring a skin-surface temperature at a first temperature sensor element (12) at a measuring rate (S21) and measuring an ambient temperature at a second temperature sensor element (13) at the measuring rate (S22). The method also comprises calculating a plurality of first change rates for the skin-surface temperature and a plurality of second change rates for the ambient temperature over a time interval (S23). The method further comprises determining, based on the plurality of first change rates and the plurality of second change rates, whether an ambient temperature change rate is faster than a skin-surface temperature change rate by a threshold (S24). The method additionally comprises selecting whether or not to trigger an alarm based on a result of the determining (S25). With the methods and apparatuses (10), the number of false alarms may be significantly reduced.Type: ApplicationFiled: March 27, 2015Publication date: March 29, 2018Inventors: Yue Chen, Yuyang Liang, Peng Lan, Wenya Zhao, Dandan Wang
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Publication number: 20180018335Abstract: Attribute information of a pending data handling process to be performed is identified. Historical data handling processes for a same application scenario as the pending data handling process are identified based on the attribute information. A time that each identified historical data handling process is performed and methods used to perform the identified historical data handling processes are also identified. A weighting coefficient for each identified historical data handling process is determined. Weighted identified historical data handling processes are calculated by applying the weight coefficient to each identified historical data handling process. A recommended weight for each method used to perform the identified historical data handling processes is determined by combining weighted identified historical data handling processes that use the same method. A method that has the highest recommended weight to perform the pending data handling process is recommended.Type: ApplicationFiled: September 27, 2017Publication date: January 18, 2018Applicant: Alibaba Group Holding LimitedInventors: Dandan Wang, Xiaofeng Pan, Di Xu
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Publication number: 20170367109Abstract: A base station schedules one or more user equipment of a plurality of user equipment for wireless communication in a transmission time interval (TTI) based on a plurality of weights associated with the plurality of user equipment. In response to scheduling the one or more user equipment in the TTI, the base station modifies the plurality of weights associated with the plurality of user equipment based on a plurality of elapsed times since the plurality of user equipment were last scheduled.Type: ApplicationFiled: June 16, 2016Publication date: December 21, 2017Inventors: Yang Yang, Dandan Wang
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Patent number: 9414386Abstract: An apparatus, such as user equipment, includes a first radio for wireless communication over a first carrier in an unlicensed frequency band according to a first radio access technology and a second radio for wireless communication over a second carrier in the unlicensed frequency band according to a second radio access technology. The apparatus also includes a device connection manager to deactivate the first carrier in response to detecting an access point that operates according to the second radio access technology in the unlicensed frequency band.Type: GrantFiled: December 4, 2014Date of Patent: August 9, 2016Assignee: Alcatel LucentInventors: Mohammad R. Khawer, Teck H. Hu, Dandan Wang
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Publication number: 20160165604Abstract: An apparatus, such as user equipment, includes a first radio for wireless communication over a first carrier in an unlicensed frequency band according to a first radio access technology and a second radio for wireless communication over a second carrier in the unlicensed frequency band according to a second radio access technology. The apparatus also includes a device connection manager to deactivate the first carrier in response to detecting an access point that operates according to the second radio access technology in the unlicensed frequency band.Type: ApplicationFiled: December 4, 2014Publication date: June 9, 2016Inventors: Mohammad R. Khawer, Teck H. Hu, Dandan Wang
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Patent number: 8467330Abstract: The present invention provides a method of scheduling guaranteed bit rate and/or maximum bit rate applications. Embodiments of the method may include setting, for a mobile node during a time interval, a first weight equal to a sum of a previous first weight associated with the mobile node during a previous time interval and a correction factor that is a linear function of a difference between a first bit rate and an indication of a throughput of the mobile node. Embodiments of the method may also include scheduling communication with the mobile node based on the first weight.Type: GrantFiled: April 14, 2011Date of Patent: June 18, 2013Assignee: Alcatel LucentInventors: Nandu Gopalakrishnan, Dandan Wang
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Patent number: 8442567Abstract: A system and method for cooperative spectrum sensing in cognitive radio (CR) systems is provided. A method for CR user operation includes coordinating with partner CR users to share spectrum sensing information, combining spectrum sensing information from partner CR users, and determining if a transmission opportunity exists based on the combined spectrum sensing information. The method also includes transmitting a message to a CR user if the transmission opportunity exists, and storing the message if the transmission opportunity does not exist.Type: GrantFiled: March 19, 2010Date of Patent: May 14, 2013Assignee: FutureWei Technologies, Inc.Inventors: Dongdong Li, Dandan Wang, Mazin Al-Shalash, Anthony C. K. Soong, Guodong Zhao, Chenyang Yang