Patents by Inventor Wei Jia Liu
Wei Jia 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: 9652474Abstract: A method and a system provide regional content to users by associating data files with geographical properties and matching the geographical property of a data file with the geographical property of the user. The system extracts geographical information from a data file, and associates the data file with a source geographical property corresponding to the extracted geographical information according to a geographical information database. Upon obtaining a user geographical property of a user, the system provides the data file to the user if the source geographical property matches the user geographical property. The method and the system may be implemented using a geographical name lexicon or a geographical name suffix lexicon.Type: GrantFiled: July 11, 2014Date of Patent: May 16, 2017Assignee: Alibaba Group Holding LimitedInventors: Guo Ping Lei, Xiao Shuan Li, Na Ma, Wei Jia Liu, Chuan Wen Chen, Ming You Wang, Hong Xi Zhou, Xuan Wang
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Patent number: 9141642Abstract: A method determines core geographical information in a document by computing a score for each geographical name found in the document. The computation of the score uses the appearance frequency of the respective geographical name and positional weights assigned to various types of appearance positions of the geographical name in the document. The system determines the core geographical information in the document based on the scores of the geographical names found in the document. The method may further compute aggregated scores of geographical regions related to the geographical names and determine the core geographical information using both the aggregated scores of geographical regions and the scores of individual geographical names to increase accuracy.Type: GrantFiled: April 4, 2014Date of Patent: September 22, 2015Assignee: Alibaba Group Holding LimitedInventors: Guo Ping Lei, Chuan Wen Chen, Xiao Shuan Li, Wei Jia Liu, Na Ma, Ming You Wang, Xuan Wang, Hong Xi Zhou
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Publication number: 20150032770Abstract: A method and a system provide regional content to users by associating data files with geographical properties and matching the geographical property of a data file with the geographical property of the user. The system extracts geographical information from a data file, and associates the data file with a source geographical property corresponding to the extracted geographical information according to a geographical information database. Upon obtaining a user geographical property of a user, the system provides the data file to the user if the source geographical property matches the user geographical property. The method and the system may be implemented using a geographical name lexicon or a geographical name suffix lexicon.Type: ApplicationFiled: July 11, 2014Publication date: January 29, 2015Inventors: Guo Ping Lei, Xiao Shuan Li, Na Ma, Wei Jia Liu, Chuan Wen Chen, Ming You Wang, Hong Xi Zhou, Xuan Wang
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Patent number: 8812536Abstract: A method and a system provide regional content to users by associating data files with geographical properties and matching the geographical property of a data file with the geographical property of the user. The system extracts geographical information from a data file, and associates the data file with a source geographical property corresponding to the extracted geographical information according to a geographical information database. Upon obtaining a user geographical property of a user, the system provides the data file to the user if the source geographical property matches the user geographical property. The method and the system may be implemented using a geographical name lexicon or a geographical name suffix lexicon.Type: GrantFiled: August 13, 2009Date of Patent: August 19, 2014Assignee: Alibaba Group Holding LimitedInventors: Guo Ping Lei, Xiao Shuan Li, Na Ma, Wei Jia Liu, Chuan Wen Chen, Ming You Wang, Hong Xi Zhou, Xuan Wang
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Publication number: 20140222799Abstract: A method determines core geographical information in a document by computing a score for each geographical name found in the document. The computation of the score uses the appearance frequency of the respective geographical name and positional weights assigned to various types of appearance positions of the geographical name in the document. The system determines the core geographical information in the document based on the scores of the geographical names found in the document. The method may further compute aggregated scores of geographical regions related to the geographical names and determine the core geographical information using both the aggregated scores of geographical regions and the scores of individual geographical names to increase accuracy.Type: ApplicationFiled: April 4, 2014Publication date: August 7, 2014Applicant: Alibaba Group Holding LimitedInventors: Guo Ping Lei, Chuan Wen Chen, Xiao Shuan Li, Wei Jia Liu, Na Ma, Ming You Wang, Xuan Wang, Hong XI Zhou
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Patent number: 8775422Abstract: A method determines core geographical information in a document by computing a score for each geographical name found in the document. The computation of the score uses the appearance frequency of the respective geographical name and positional weights assigned to various types of appearance positions of the geographical name in the document. The system determines the core geographical information in the document based on the scores of the geographical names found in the document. The method may further compute aggregated scores of geographical regions related to the geographical names and determine the core geographical information using both the aggregated scores of geographical regions and the scores of individual geographical names to increase accuracy.Type: GrantFiled: August 28, 2009Date of Patent: July 8, 2014Assignee: Alibaba Group Holding LimitedInventors: Guo Ping Lei, Chuan Wen Chen, Xiao Shuan Li, Wei Jia Liu, Na Ma, Ming You Wang, Xuan Wang, Hong Xi Zhou
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Publication number: 20110145235Abstract: A method determines core geographical information in a document by computing a score for each geographical name found in the document. The computation of the score uses the appearance frequency of the respective geographical name and positional weights assigned to various types of appearance positions of the geographical name in the document. The system determines the core geographical information in the document based on the scores of the geographical names found in the document. The method may further compute aggregated scores of geographical regions related to the geographical names and determine the core geographical information using both the aggregated scores of geographical regions and the scores of individual geographical names to increase accuracy.Type: ApplicationFiled: August 28, 2009Publication date: June 16, 2011Inventors: Guo Ping Lei, Chuan Wen Chen, Xiao Shuan Li, Wei Jia Liu, Na Ma, Ming You Wang, Xuan Wang, Hong Xi Zhou
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Publication number: 20100185663Abstract: A method and a system provide regional content to users by associating data files with geographical properties and matching the geographical property of a data file with the geographical property of the user. The system extracts geographical information from a data file, and associates the data file with a source geographical property corresponding to the extracted geographical information according to a geographical information database. Upon obtaining a user geographical property of a user, the system provides the data file to the user if the source geographical property matches the user geographical property. The method and the system may be implemented using a geographical name lexicon or a geographical name suffix lexicon.Type: ApplicationFiled: August 13, 2009Publication date: July 22, 2010Inventors: Guo Ping Lei, Xiao Shuan Le, Na Ma, Wei Jia Liu, Chuan Wen Chen, Ming You Wang, Hong Xi Zhou, Xuan Wang
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Publication number: 20080044042Abstract: The present invention provides a sonic transducer comprising an outer shell, a permanent magnet disposed within the outer shell, an electromagnet disposed within the outer shell, a coil for carrying an electrical current, wherein the coil is wrapped around the electromagnet to induce vibration in the electromagnet, and an energy channeler for channeling vibration energy from the electromagnet onto a surface that is in contact with the sonic transducer, whereby the surface becomes a surface sound source that increases the effective range of the sonic transducer.Type: ApplicationFiled: August 18, 2006Publication date: February 21, 2008Inventors: Wei Jia Liu, Xinhua Wang