Patents by Inventor Rong Duan

Rong Duan 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).

  • Publication number: 20200356599
    Abstract: A computer-implemented method of determining data lineage based on database queries is provided. A received database query is parsed to identify a plurality of data entities associated with a plurality of data flows. A query graph associated with the received database query is generated, where the query graph includes a plurality of nodes connected via edges. The plurality nodes correspond to the plurality of data entities and the edges correspond to the plurality of data flows. A data lineage query is retrieved from memory. The data lineage query includes one or more of the plurality of data entities associated with the plurality of nodes within the generated query graph. A representation of the generated query graph is output based on the data lineage query.
    Type: Application
    Filed: July 27, 2020
    Publication date: November 12, 2020
    Inventors: Yinglong Xia, Rong Duan, Ting Yu Leung
  • Patent number: 9747610
    Abstract: A system that incorporates teachings of the present disclosure may include, for example, determining a first linear model and a first log-linear model according to first explanatory variables and a first plurality of occupancy estimates, determining a second linear model and a second log-linear model according to second explanatory variables and a second plurality of occupancy estimates, evaluating, according to a location of a building, the first linear model, the first log-linear model, the second linear model, and the second log-linear model according to first values of the first explanatory variables and second values of the second explanatory variables, and combining results from the evaluating to generate a mixed occupancy estimate. Other embodiments are disclosed.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: August 29, 2017
    Assignee: AT&T Intellectual Property I, LP
    Inventors: Rong Duan, Guang-Qin Ma, Olivia Hong
  • Patent number: 9544785
    Abstract: A method collects data and subjects it to statistical analysis to detect localized events, which assists in network provisioning. Illustratively, the data employed is hourly network traffic counts that are collected at cell sites. By taking advantage of the additive property of a Poisson process, the method integrates spatial neighbor information by aggregating temporal data in various areas, and iteratively estimating the event location and the radius of event impact by examining the posterior probability based on the aggregated data.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: January 10, 2017
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Rong Duan, Siu-Tong Au, Heeyoung Kim, Guang-Qin Ma
  • Publication number: 20150149245
    Abstract: A system that incorporates teachings of the present disclosure may include, for example, determining a first linear model and a first log-linear model according to first explanatory variables and a first plurality of occupancy estimates, determining a second linear model and a second log-linear model according to second explanatory variables and a second plurality of occupancy estimates, evaluating, according to a location of a building, the first linear model, the first log-linear model, the second linear model, and the second log-linear model according to first values of the first explanatory variables and second values of the second explanatory variables, and combining results from the evaluating to generate a mixed occupancy estimate. Other embodiments are disclosed.
    Type: Application
    Filed: November 22, 2013
    Publication date: May 28, 2015
    Applicant: AT&T Intellectual Property I, LP
    Inventors: Rong Duan, Guang-Qin Ma, Olivia Hong
  • Publication number: 20150024768
    Abstract: A method that collects data and subjects it to statistical analysis to detect localized events, which assists in network provisioning. illustratively, the data employed is hourly network traffic count that is collected at cell sites. By taking the advantage of additive property of Poisson process, the method integrates spatial neighbor information by aggregating temporal data in various areas, and iteratively estimating the event location and the radius of event impact by examining the posterior probability base on the aggregated data.
    Type: Application
    Filed: October 10, 2014
    Publication date: January 22, 2015
    Inventors: Rong Duan, Siu-Tong Au, Heeyoung Kim, Guang-Qin Ma
  • Patent number: 8861353
    Abstract: A method that collects data and subjects it to statistical analysis to detect localized events, which assists in network provisioning. Illustratively, the data employed is hourly network traffic count that is collected at cell sites. By taking the advantage of additive property of Poisson process, the method integrates spatial neighbor information by aggregating temporal data in various areas, and iteratively estimating the event location and the radius of event impact by examining the posterior probability base on the aggregated data.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: October 14, 2014
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Rong Duan, Siu-Tong Au, Heeyoung Kim, Guang-Qin Ma
  • Patent number: 8630890
    Abstract: A method and system for mining a database for product migration analysis includes querying product usage data for a legacy product and a new product from the database as time series data. The product usage data is representative for a large number of consumers of the legacy and new products. A mathematical model may be used to determine a relationship between the two time series data. Product migration values and other features related to product migration, such as a transition period of product usage, may be estimated, determined or predicted.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: January 14, 2014
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Siu-Tong Au, Rong Duan
  • Publication number: 20120147760
    Abstract: A method that collects data and subjects it to statistical analysis to detect localized events, which assists in network provisioning. Illustratively, the data employed is hourly network traffic count that is collected at cell sites. By taking the advantage of additive property of Poisson process, the method integrates spatial neighbor information by aggregating temporal data in various areas, and iteratively estimating the event location and the radius of event impact by examining the posterior probability base on the aggregated data.
    Type: Application
    Filed: December 9, 2010
    Publication date: June 14, 2012
    Inventors: Rong Duan, Siu-Tong Au, Heeyoung Kim, Guang-Qin Ma
  • Publication number: 20100138277
    Abstract: A method and system for mining a database for product migration analysis includes querying product usage data for a legacy product and a new product from the database as time series data. The product usage data is representative for a large number of consumers of the legacy and new products. A mathematical model may be used to determine a relationship between the two time series data. Product migration values and other features related to product migration, such as a transition period of product usage, may be estimated, determined or predicted.
    Type: Application
    Filed: December 3, 2008
    Publication date: June 3, 2010
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Siu-Tong Au, Rong Duan
  • Patent number: 7678776
    Abstract: The present invention relates to the inclusion complexes of butylphthalide, which is D, L-mixed or levorotatory, with cyclodextrin or cyclodextrin derivatives, to a process for their preparation and the use thereof. In the invention, the butylphthalide is complexed with cyclodextrin or cyclodextrin derivatives, preferably with hydroxypropyl-?-cyclodextrin in order to increase the water-solubility of butylphthalide, develop clinical solid or liquid formulations and improve the therapeutic effect of butylphthalide. The inclusion complex, in which the molar ratio of butylphthalide to cyclodextrin or cyclodextrin derivatives is in the range of 1:1-10, can be used to prepare infusion, injection, injectable powder, liquids for oral administration, syrup, tablets, granules, dispersible tablets and others.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: March 16, 2010
    Assignee: Shijiazhuang Pharma. Group Zhongqi Pharmaceutical Technology (Shijiazhuang) Co., Ltd.
    Inventors: Zhan-qi Niu, Kai Zhao, Wen-juan Liu, Gui-rong Zhou, Chao Liu, Rong-duan Wang, Hong-zhong Yuan, Wen-min Guo, Sui-chao Yan, Min Bai
  • Patent number: 7578423
    Abstract: An assembly for reducing oxidation of a semiconductor device comprises a holding device for securing the semiconductor device to a platform. The holding device includes at least one opening for providing access by a bonding tool to bonding areas where the semiconductor device is to be bonded. A slidable cover covers the holding device and has a slot for providing access by the bonding tool to the bonding areas through the slot. A guiding device is positioned on the slidable cover and is coupled to a pusher which is operative to push the slidable cover to move along a first axis. The pusher is further guided by the guiding device to move relative to the slidable cover along a second axis which is perpendicular to the first axis without pushing the slidable cover to move in the second axis.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: August 25, 2009
    Assignee: ASM Technology Singapore Pte Ltd.
    Inventors: Rong Duan, Zhao Ya Rui, Pei Bei Xu
  • Publication number: 20080318898
    Abstract: The present invention relates to the inclusion complexes of butylphthalide, which is D, L-mixed or levorotatory, with cyclodextrin or cyclodextrin derivatives, to a process for their preparation and the use thereof. In the invention, the butylphthalide is complexed with cyclodextrin or cyclodextrin derivatives, preferably with hydroxypropyl-?-cyclodextrin in order to increase the water-solubility of butylphthalide, develop clinical solid or liquid formulations and improve the therapeutic effect of butylphthalide. The inclusion complex, in which the molar ratio of butylphthalide to cyclodextrin or cyclodextrin derivatives is in the range of 1:1-10, can be used to prepare infusion, injection, injectable powder, liquids for oral administration, syrup, tablets, granules, dispersible tablets and others.
    Type: Application
    Filed: August 28, 2008
    Publication date: December 25, 2008
    Applicant: Shijiazhuang Pharma. Group Zhongqi Pharmaceutical Technology (Shijiazhuang) Co., Ltd.
    Inventors: Zhan-qi Niu, Kai Zhao, Wen-juan Liu, Gui-rong Zhou, Chao Liu, Rong-duan Wang, Hong-zhong Yuan, Wen-min Guo, Sui-chao Yan, Min Bai
  • Patent number: 7240820
    Abstract: A clamping device is provided for holding an electronic device, such as a semiconductor carrier in the form of a leadframe, during processing thereof. It includes a main body for covering the electronic device and an opening in the main body for providing access to a part of the electronic device to be worked upon. A support structure is attachable for coupling it to a periphery of the opening whereby the support structure is extended across the opening for supporting the part of the electronic device that is accessible through the opening.
    Type: Grant
    Filed: July 19, 2004
    Date of Patent: July 10, 2007
    Assignee: ASM Technology Singapore Pte Ltd.
    Inventors: Rong Duan, Wei Hong He, Ka Shing Kwan
  • Patent number: 7182793
    Abstract: The invention provides a system for reducing oxidation of a semiconductor device when it is heated, for example during wire bonding. A holding device is provided for securing the semiconductor device to a platform. The holding device includes an opening for providing access to an area where the semiconductor device is to be heated and a cavity is coupled to the opening. A gas inlet in fluid communication with the cavity supplies a relatively inert gas to the cavity, whereby to transmit the inert gas to the opening through the cavity and to reduce oxidation of the semiconductor device.
    Type: Grant
    Filed: January 22, 2004
    Date of Patent: February 27, 2007
    Assignee: ASM Technology Singapore Pty Ltd.
    Inventors: Rong Duan, Ka Shing Kenny Kwan
  • Patent number: 7103959
    Abstract: An apparatus to prevent oxidation of an electronic device, such as a semiconductor substrate during a semiconductor packaging process, comprises a substantially-enclosed conduit having at least one movable support defining a path through which the electronic device may travel and a plurality of gas outlets to introduce a relatively inert gas into the conduit. Conveying means adapted to engage and move the electronic device along the conduit is provided, and an opening along a portion of the conduit allows engagement between the conveying means and the electronic device. Actuating means are adapted to shift the movable support whereby the size of the path is adjustable to suit different electronic devices.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: September 12, 2006
    Assignee: ASM Technology Singapore PTE Ltd.
    Inventors: Boon June Yeap, Jie Wei Hu, Rong Duan, Ka Shing Kenny Kwan
  • Publication number: 20060166931
    Abstract: The present invention relates to the inclusion complexes of butylphthalide, which is D,L-mixed or levorotatory, with cyclodextrin or cyclodextrin derivatives, to a process for their preparation and the use thereof. In the invention, the butylphthalide is complexed with cyclodextrin or cyclodextrin derivatives, preferably with hydroxypropyl-?-cyclodextrin, in order to increase the water-solubility of butylphthalide, develop clinical solid or liquid formulations and improve the therapeutic effect of butylphthalide. The inclusion complex, in which the molar ratio of butylphthalide to cyclodextrin or cyclodextrin derivatives is in the range of 1:1-10, can be used to prepare infusion, injection, injectable powder, liquids for oral administration, syrup, tablets, granules, dispersible tablets and others.
    Type: Application
    Filed: August 21, 2002
    Publication date: July 27, 2006
    Inventors: Zhan-qi Niu, Kai Zhao, Wen-juan Liu, Gui-rong Zhou, Chao Liu, Rong-duan Wang, Hong-zhong Yuan, Wen-min Guo, Sui-chao Yan, Min Bai
  • Publication number: 20060011701
    Abstract: A clamping device is provided for holding an electronic device, such as a semiconductor carrier in the form of a leadframe, during processing thereof. It includes a main body for covering the electronic device and an opening in the main body for providing access to a part of the electronic device to be worked upon. A support structure is attachable for coupling it to a periphery of the opening whereby the support structure is extended across the opening for supporting the part of the electronic device that is accessible through the opening.
    Type: Application
    Filed: July 19, 2004
    Publication date: January 19, 2006
    Inventors: Rong Duan, Wei He, Ka Kwan
  • Publication number: 20050161488
    Abstract: The invention provides a system for reducing oxidation of a semiconductor device when it is heated, for example during wire bonding. A holding device is provided for securing the semiconductor device to a platform. The holding device includes an opening for providing access to an area where the semiconductor device is to be heated and a cavity is coupled to the opening. A gas inlet in fluid communication with the cavity supplies a relatively inert gas to the cavity, whereby to transmit the inert gas to the opening through the cavity and to reduce oxidation of the semiconductor device.
    Type: Application
    Filed: January 22, 2004
    Publication date: July 28, 2005
    Inventors: Rong Duan, Ka Shing Kenny Kwan
  • Patent number: 6866182
    Abstract: The invention provides an apparatus and a method for preventing oxidation of an electronic device, such as a semiconductor leadframe, when it is heated. The apparatus comprises an area in which said device is to be heated and inlet means adapted to supply a relatively inert gas to the said area. In particular, the apparatus includes a porous distribution element through which the inert gas is passed from the inlet means to said area, whereby to protect the electronic device in the area from oxidation.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: March 15, 2005
    Assignee: ASM Technology Singapore PTE Ltd.
    Inventors: Yam Mo Wong, Ka Shing Kenny Kwan, Rong Duan, Zhao Ya Rui
  • Publication number: 20040115959
    Abstract: An apparatus to prevent oxidation of an electronic device, such as a semiconductor substrate during a semiconductor packaging process, comprises a substantially-enclosed conduit having at least one movable support defining a path through which the electronic device may travel and a plurality of gas outlets to introduce a relatively inert gas into the conduit. Conveying means adapted to engage and move the electronic device along the conduit is provided, and an opening along a portion of the conduit allows engagement between the conveying means and the electronic device. Actuating means are adapted to shift the movable support whereby the size of the path is adjustable to suit different electronic devices.
    Type: Application
    Filed: December 17, 2002
    Publication date: June 17, 2004
    Applicant: ASM Technology Singapore Pte Ltd
    Inventors: Boon June Yeap, Jie Wei Hu, Rong Duan, Ka Shing Kenny Kwan