Patents by Inventor Wenjie Feng

Wenjie Feng 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: 20240111797
    Abstract: A method and an apparatus for searching for a point of information. A client performs, based on a first search text entered by a user and first user data stored in the client, address extension on the first search text, to obtain a second search text that includes the first search text and includes first address information obtained based on the first user data. Because the first address information in the second search text is closely related to personal information of the user, it is highly probable that an address indicated by the first address information represents an address of a POI that the user expects to find. Therefore, it is highly probable that POI search results fed back by a server based on the second search text include a search result of the POI that the user is interested in or expects.
    Type: Application
    Filed: December 15, 2023
    Publication date: April 4, 2024
    Inventors: Wenjie LIU, Letian FENG
  • Patent number: 11638700
    Abstract: An iron/shikonin nano-composite and a use thereof, and a method for preparing the same by supermolecular self-assembly, belonging to the technical field of functional materials. The composite consists of shikonin and ferric ions, wherein shikonin is coordinated with the ferric ions, and the hydroxyl and carbonyl groups in shikonin are coordinated with the ferric irons to form a complex, which is then assembled by ?-? stacking and hydrophobic interactions to form a nano-composite which exhibits glutathione response. The composite is obtained by the following steps: adding an aqueous solution of a ferric salt and an organic solvent solution of shikonin in sequence into water while stirring at ambient temperature, continuously stirring at ambient temperature, and centrifuging the resulting mixture to purify, thereby obtaining an iron/shikonin nano-composite in the resulting solution.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: May 2, 2023
    Assignee: Jilin University
    Inventors: Hao Zhang, Wenjie Feng, Yi Liu, Lening Zhang, Wanrui Shi
  • Publication number: 20220071927
    Abstract: An iron/shikonin nano-composite and a use thereof, and a method for preparing the same by supermolecular self-assembly, belonging to the technical field of functional materials. The composite consists of shikonin and ferric ions, wherein shikonin is coordinated with the ferric ions, and the hydroxyl and carbonyl groups in shikonin are coordinated with the ferric irons to form a complex, which is then assembled by ?-? stacking and hydrophobic interactions to form a nano-composite which exhibits glutathione response. The composite is obtained by the following steps: adding an aqueous solution of a ferric salt and an organic solvent solution of shikonin in sequence into water while stirring at ambient temperature, continuously stirring at ambient temperature, and centrifuging the resulting mixture to purify, thereby obtaining an iron/shikonin nano-composite in the resulting solution.
    Type: Application
    Filed: June 1, 2021
    Publication date: March 10, 2022
    Applicant: Jilin University
    Inventors: Hao Zhang, Wenjie Feng, Yi Liu, Lening Zhang, Wanrui Shi
  • Patent number: 11131784
    Abstract: A multi-point geostatistical prestack inversion method based on a renewal probability ratio constant theory, comprising the following steps: sorting information, work area gridding and distributing well data, assigning an initial attribute value to a simulation work area, selecting a data template with an appropriate size, inversion and judging iteration termination; the method overcomes the defects that in the prior art, oil and gas exploration and development are more and more difficult, exploration degree is higher and higher, new oil and gas reservoirs are more and more difficult to find, reservoir parameters are inaccurate, and exploration uncertainty is increased, and the method has the advantages that prior information is obtained through a multi-point geostatistics method and then screening is carried out through a minimum objective function such that the complexity of seismic inversion is reduced.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: September 28, 2021
    Inventors: Yanshu Yin, Xun Hu, Wenjie Feng, Changmin Zhang
  • Publication number: 20210263176
    Abstract: A multi-point geostatistical prestack inversion method based on a renewal probability ratio constant theory, comprising the following steps: sorting information, work area gridding and distributing well data, assigning an initial attribute value to a simulation work area, selecting a data template with an appropriate size, inversion and judging iteration termination; the method overcomes the defects that in the prior art, oil and gas exploration and development are more and more difficult, exploration degree is higher and higher, new oil and gas reservoirs are more and more difficult to find, reservoir parameters are inaccurate, and exploration uncertainty is increased, and the method has the advantages that prior information is obtained through a multi-point geostatistics method and then screening is carried out through a minimum objective function such that the complexity of seismic inversion is reduced.
    Type: Application
    Filed: May 10, 2021
    Publication date: August 26, 2021
    Inventors: Yanshu YIN, Xun HU, Wenjie FENG, Changmin ZHANG
  • Patent number: 10458937
    Abstract: The present invention discloses an electromagnetic detector and a detection method for detection of interface cracks in a piezoelectric-piezomagnetic laminated structure. The electromagnetic detector for detection of interface crack in a piezoelectric-piezomagnetic laminated structure mainly comprises an eddy current magnetic probe assembly, an automatic scanning frame, a base, a carrier, a servomotor, an X-axis mobile frame driving controller, a Y-axis mobile frame driving controller, a power supply, and a main controller.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: October 29, 2019
    Inventors: Wenjie Feng, Zhen Yan, Peng Ma, Lei Wen
  • Publication number: 20190277786
    Abstract: The present invention d iscloses an electromagnetic detector and a detection method for detection of interface cracks in a piezoelectric-piezomagnetic laminated structure. The electromagnetic detector for detection of interface crack in a piezoelectric-piezomagnetic laminated structure mainly comprises an eddy current magnetic probe assembly, an automatic scanning frame, a base, a carrier, a servomotor, an X-axis mobile frame driving controller, a Y-axis mobile frame driving controller, a power supply, and a main controller.
    Type: Application
    Filed: March 8, 2018
    Publication date: September 12, 2019
    Inventors: WENJIE FENG, ZHEN YAN, PENG MA, LEI WEN
  • Patent number: 10183278
    Abstract: The present invention discloses a method for preparing the nano-porous oxide-noble metal composite material by deoxidation, comprising dissolving the noble metal ion or fine particles, the oxide salt to be dissolved and the target oxide salt in the pure water in a proportion to form the mixed solution, adding the surface active agent, and stirring magnetically; dropping the precipitant gradually to form the precipitate, stirring for 4 h, separating and cleaning the precipitate, and drying, grinding and calcining at a high temperature; corroding fully and dissolving part of the oxide with an etchant, preserving the noble metal and the target oxide, separating, cleaning, drying at 80° C., and heat treating at a high temperature to obtain the nano-porous oxide-noble metal composite material. The present invention has the technological advantages of simple operation, low energy consumption, environmental protection and suitable for batching, etc.
    Type: Grant
    Filed: June 18, 2017
    Date of Patent: January 22, 2019
    Inventors: Guijing Li, Wenjie Feng, Jinxi Liu, Xueqian Fang
  • Publication number: 20180250660
    Abstract: The present invention discloses a method for preparing the nano-porous oxide-noble metal composite material by deoxidation, comprising dissolving the noble metal ion or fine particles, the oxide salt to be dissolved and the target oxide salt in the pure water in a proportion to form the mixed solution, adding the surface active agent, and stirring magnetically; dropping the precipitant gradually to form the precipitate, stirring for 4 h, separating and cleaning the precipitate, and drying, grinding and calcining at a high temperature; corroding fully and dissolving part of the oxide with an etchant, preserving the noble metal and the target oxide, separating, cleaning, drying at 80° C., and heat treating at a high temperature to obtain the nano-porous oxide-noble metal composite material. The present invention has the technological advantages of simple operation, low energy consumption, environmental protection and suitable for batching, etc.
    Type: Application
    Filed: June 18, 2017
    Publication date: September 6, 2018
    Inventors: GUIJING LI, WENJIE FENG, JINXI LIU, XUEQIAN FANG
  • Publication number: 20150143539
    Abstract: A method for backing up and restoring a license is provided, which solves the problem of right proliferation in the prior art caused when an original license is transmitted to a user when a server restores the license. The method includes: backing up, at a server, license information of a first device, and associating the license information with a user identifier, the license information reflecting the current state information of a license when the first device reports the license information the last time; requesting, by a second device, the server to restore the license; and validating, by the server, a user identifier of the second device and the user identifier associated with the license information, and upon determination that the two user identifiers are consistent, generating a license based on the license information backed up, and transmitting the license to the second device. A terminal device, a server, and a license processing system are also provided.
    Type: Application
    Filed: September 4, 2014
    Publication date: May 21, 2015
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Wenjie FENG, Yimin LI, Pei DANG, Renzhou ZHANG, Haojun ZHOU, Chen ZHOU, Zhipeng ZHOU
  • Publication number: 20100017888
    Abstract: The present invention discloses a method for transferring licenses, a device for issuing licenses, and a communication system, and relates to the Digital Rights Management (DRM) technology. The method includes: the first issuing device receives a request of transferring a license issued by the second issuing device; the first issuing device transfers the license after determining that a relationship is set up with the second issuing device. The license issuing device includes: a receiving module, a setup module, a determining module, and a sending module. The communication system includes: a first issuing device, a second issuing device, and a device requesting to transfer a license. Through the present invention, an issuing device may transfer the licenses issued by other issuing devices, thus improving the flexibility of transferring the licenses.
    Type: Application
    Filed: September 25, 2009
    Publication date: January 21, 2010
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Renzhou ZHANG, Pei DANG, Zhipeng ZHOU, Dagang CHEN, Haojun ZHOU, Chen HUANG, Wenjie FENG
  • Publication number: 20090240983
    Abstract: A method for license interaction and interaction recovery after interruption overcomes the problems of mobility loss and waste of rights of the license due to interruption of communication during the license interaction. This method includes: when a first device and a second device interact on license information, both devices record the interaction related information; after the interaction is interrupted and the connection is re-established, the first device and the second device continue the interaction when determining that the interaction is uncompleted according to the recorded information. A communication device and a digital rights management (DRM) system are also disclosed.
    Type: Application
    Filed: June 8, 2009
    Publication date: September 24, 2009
    Inventors: Haojun ZHOU, Renzhou Zhang, Zhipeng Zhou, Pei Dang, Chen Huang, Wenjie Feng, Jue Wang
  • Publication number: 20090158440
    Abstract: A method for exporting permission is provided to solves the problem that the permission can not be exported multiple times among several DRM systems in the prior art; the method includes that: determining that a license is permitted to be exported to a system that a target device belongs to; determining whether an export permission in the license is permitted to be exported; and exporting the export permission in the license to the target device if the export permission in the license is permitted to be exported, which enables the target device to export the license to another device. A terminal apparatus, a server and a communication network are also disclosed.
    Type: Application
    Filed: February 24, 2009
    Publication date: June 18, 2009
    Inventors: Pei Dang, Yimin Li, Renzhou Zhang, Haojun Zhou, Wenjie Feng, Chen Zhou, Zhipeng Zhou, Chen Huang, Dagang Chen
  • Publication number: 20090151001
    Abstract: A method for operating a Right For Contents (R4C) includes: obtaining, by a terminal, a hybrid RO generated by the RI server, with the R4C items and the operation Rights For Rights (R4Rs) carried in the hybrid RO; operating the R4C items in the hybrid RO according to the R4R. A method for adding an R4R includes: a terminal receives a hybrid RO that includes the existing rights of the terminal and the newly added R4R; the terminal operates the R4C in the hybrid RO according to the new R4R. The present invention also discloses a terminal and a server. The present invention enables the RI to control the rights at a finer granularity, intensifies the RI's control on the rights, and provides a mechanism of purchasing an R4R after an RO is purchased.
    Type: Application
    Filed: December 23, 2008
    Publication date: June 11, 2009
    Inventors: Yimin Li, Renzhou Zhang, Guoxin Shi, Pei Dang, Wenjie Feng, Chen Zhou, Haojun Zhou
  • Publication number: 20080271155
    Abstract: A method for obtaining DRM content packets is provided. The method enables a terminal to obtain another DCF when the terminal is unable to use a downloaded DCF. The method includes receiving the first content packet, which includes media content types and corresponding URLs, and resolving the first content packet; selecting a media content type and the corresponding URL in the first content packet; downloading the second content packet from the selected URL.
    Type: Application
    Filed: July 8, 2008
    Publication date: October 30, 2008
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Pei Dang, Yimin Li, Wenjie Feng
  • Publication number: 20080163336
    Abstract: A method for backing up and restoring a license is provided, which solves the problem of right proliferation in the prior art caused when an original license is transmitted to a user when a server restores the license. The method includes: backing up, at a server, license information of a first device, and associating the license information with a user identifier, the license information reflecting the current state information of a license when the first device reports the license information the last time; requesting, by a second device, the server to restore the license; and validating, by the server, a user identifier of the second device and the user identifier associated with the license information, and upon determination that the two user identifiers are consistent, generating a license based on the license information backed up, and transmitting the license to the second device. A terminal device, a server, and a license processing system are also provided.
    Type: Application
    Filed: February 29, 2008
    Publication date: July 3, 2008
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Wenjie FENG, Yimin LI, Pei DANG, Renzhou ZHANG, Haojun ZHOU, Chen ZHOU, Zhipeng ZHOU