Patents by Inventor Dapeng Liu

Dapeng 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).

  • Publication number: 20200358244
    Abstract: An integrated Fourier domain mode-locked optoelectronic oscillator and its application and a communication system are provided, which relates to the technical field of microwave photonics. The integrated Fourier domain mode-locked optoelectronic oscillator includes an optoelectronic chip and an electronic chip. The optoelectronic chip includes a laser, a modulator, an optical notch filter, and a photodetector coupled via an optical waveguide. The electronic chip includes an electrical amplifier and a power splitter coupled via a coplanar microwave waveguide. The volume, weight and power consumption of the Fourier domain mode-locked optoelectronic oscillator is greatly reduced by integrating all the devices on the chip. A tunable sweeping microwave signal output is realized, and the sweeping speed of the output signal is increased. The integrated Fourier domain mode-locked optoelectronic oscillator can be used in radars and communication systems.
    Type: Application
    Filed: May 11, 2020
    Publication date: November 12, 2020
    Inventors: Ming Li, Tengfei Hao, Dapeng Liu, Nuannuan Shi, Wei Li, Ninghua Zhu
  • Patent number: 10832284
    Abstract: A method and device for processing promotion information and a system are provided. The method includes that: agreement information and exposure requirements of all promotion information within a preset period are acquired (101); directional delivered targets are determined according to the agreement information and the exposure requirements, and the directional delivered targets are split into multiple non-intersected delivered target sets (102); the promotion information is delivered to users corresponding to the corresponding delivered target sets according to the exposure requirements (103); statistics about social propagation amounts of to the delivered promotion information is made in real time in a delivery process (104); and exposure parameters are corrected according to the social propagation amounts (105), so that delivery of the promotion information is regulated in real time. By the method, the effectiveness and accuracy of delivering the promotion information may be improved.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: November 10, 2020
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Chuanjiang Luo, Lei Xiao, Dapeng Liu, Lili Zhao, Peili Lv, Xue Bai, Jinjing Liu, Wei Xue, Miao Xu, Yang Wang
  • Patent number: 10789311
    Abstract: A method and a device for selecting data content to be pushed to a terminal are disclosed. In some embodiments, the method includes: acquiring a user identifier, and acquiring a characteristic value, corresponding to the user identifier, in a preset user attribute type; acquiring data content, and searching for a decision tree object corresponding to the data content; locating a leaf node corresponding to the user identifier in the decision tree object based on the characteristic value, corresponding to the user identifier, in the preset user attribute type; and acquiring the number of clicks and the number of pushes stored in the located leaf node, generating a selection reference value based on the number of clicks and the number of pushes, and selecting, based on the selection reference value, data content to be pushed to a terminal corresponding to the user identifier.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: September 29, 2020
    Assignee: Tencent Technology (Shenzhen) Company Limited
    Inventors: Lei Jiang, Yong Li, Lei Xiao, Dapeng Liu, Shubin Zhang, Chuanjiang Luo, Yajuan Song
  • Patent number: 10674081
    Abstract: Disclosed herein are techniques for camera illuminator control. These techniques can be used in cameras that include an RGBIR (red green blue infrared) camera sensor and two illuminators—one visible light illuminator and one infrared illuminator. The techniques provide timing and control for such cameras for a variety of different camera modes. Particular camera modes may be defined as having different camera mode values for different camera mode parameters. That is, any particular camera mode is defined by a particular camera mode value for each of a set of camera mode parameters. Different parameters include a flash periodicity parameter, a simultaneity parameter, an autoexposure mode parameter, a shutter mode parameter, and a frame drop parameter.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: June 2, 2020
    Assignee: ADVANCED MICRO DEVICES, INC.
    Inventors: Hui Zhou, Chunrong Zhang, Dapeng Liu
  • Patent number: 10664112
    Abstract: A touch module and a manufacturing method thereof, and a touch screen are provided. The method of manufacturing a touch module includes: forming a composite electrode, a lead, and a lead pad each of which has a stacked structure of a transparent conductive layer and a metal layer on a substrate by one patterning process, the touch module including a touch area, and a peripheral area and a bonding area located at the periphery of the touch area, the composite electrode being formed in the touch area, the lead being formed in the peripheral area, and the lead pad being formed in the bonding area; forming a protective layer outside the touch area, and etching away the metal layer of the composite electrode to form a transparent touch electrode.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: May 26, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Shouzheng Wu, Qing Zhang, Jun Xu, Fusheng Huang, Heng Zhang, Ji Shao, Dapeng Liu, Zhigang Ouyang, Baoqing Yin, Xiaojun Wang, Tongmin Liu
  • Publication number: 20200044185
    Abstract: A package structure of an organic light emitting diode display panel includes a display substrate, a glass cover plate and a package portion. The display substrate and the glass cover are arranged opposite to each other. The package portion is provided between a non-display region of the display substrate and a portion of the glass cover plate corresponding to the non-display region. The display substrate includes organic light emitting diode elements. The organic light emitting diode elements are located in a sealed cavity enclosed by the display substrate, the glass cover plate and the package portion. The package portion includes a first concavo-convex structure provided at a surface of the display substrate facing the glass cover plate; a second concavo-convex structure provided at a surface of the glass cover plate close to the display substrate; and a package material is provided between the first concavo-convex structure and the second concavo-convex structure.
    Type: Application
    Filed: May 25, 2018
    Publication date: February 6, 2020
    Inventors: Shouzheng WU, Qing ZHANG, Fusheng HUANG, Ji SHAO, Dapeng LIU, Zhigang OUYANG, Xiaojun WANG, Jun XU, Baoqing YIN
  • Publication number: 20190289536
    Abstract: The present disclosure provides a terminal, a base station and methods for communications between the terminal and the base station, and for the terminal to access a network. According to one exemplary method, a terminal sends a first message to a base station via a first channel, the first message being used to request access to a network. The terminal receives a second message from a first base station via a second channel, the second message including channel plan information for determining a first network connection plan. The terminal determines the first network connection plan according to the channel plan information and accesses the network via a second base station according to the first network connection plan. Channel use plan of the base station can be obtained through signaling interactions in the process of network connection. The terminal can determine whether the network can be accessed and access the network accordingly.
    Type: Application
    Filed: March 13, 2019
    Publication date: September 19, 2019
    Inventors: Zhen TAO, Xiaobo YU, Dapeng LIU
  • Publication number: 20190289006
    Abstract: A method and an apparatus for recording and verifying an Internet of Things (IoT) device, a method and an apparatus for identity authentication are provided. The recording and verification method includes receiving a recording request sent by a recording production line, the recording request being used for requesting an assignment of an identity identifier and a device key including a device private key and a device public key to an IoT device; verifying whether the recording request is legitimate, and assigning the identity identifier and the device key to the IoT device if affirmative; and sending the identity identifier and the device private key to the recording production line, so that the recording production line records the identity identifier and the device private key into the IoT device, thus improving the security of identity authentication of the IoT device, and reducing the cost of a platform side.
    Type: Application
    Filed: May 31, 2019
    Publication date: September 19, 2019
    Inventors: Qiang Fang, Dapeng LIU
  • Patent number: 10411945
    Abstract: The present invention discloses a real-time and time-distributed information recommendation system, method and apparatus. Specifically, when first clients of the information recommendation system running on first terminal devices access and operate on pieces of information, influence values of the pieces of information on friend clients of the first clients are calculated, accumulated and recorded in a database based on fried intimacy and types of the operations at the times the pieces of information are accessed and operated on. As such, the influence values of the pieces of information on friend clients are updated over time and in real-time. The speed and efficiency of processes for recommending information to the friend clients, when requested, are thus improved.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: September 10, 2019
    Assignee: Tencent Technology (Shenzhen) Company Limited
    Inventors: Dapeng Liu, Lei Xiao
  • Publication number: 20190268263
    Abstract: Techniques whereby a LAN-side border router observes all packets of an application flow from both directions so that the application recognition performed on the LAN-side border router functions properly. A border router may implement flags in a flow cache to indicate whether the border router is the LAN-side border router and/or a WAN-side border router for an application flow. As packets are received at a border router at either the LAN interface or WAN interface, the flags associated with packet's application flows are examined to determine if the border router is the LAN-side border router for the application flow. If so, then application recognition and routing control may be performed. If not, the packet may be redirected to another border router that may be the LAN-side border router or the WAN-side border router for the application flow to insure that border router observes the packet.
    Type: Application
    Filed: March 4, 2019
    Publication date: August 29, 2019
    Inventors: Alan Xiao-rong Wang, Dapeng Liu, Yu Zhang, Gaofeng Tao
  • Publication number: 20190204947
    Abstract: A touch module and a manufacturing method thereof, and a touch screen are provided. The method of manufacturing a touch module includes: forming a composite electrode, a lead, and a lead pad each of which has a stacked structure of a transparent conductive layer and a metal layer on a substrate by one patterning process, the touch module including a touch area, and a peripheral area and a bonding area located at the periphery of the touch area, the composite electrode being formed in the touch area, the lead being formed in the peripheral area, and the lead pad being formed in the bonding area; forming a protective layer outside the touch area, and etching away the metal layer of the composite electrode to form a transparent touch electrode.
    Type: Application
    Filed: June 7, 2018
    Publication date: July 4, 2019
    Inventors: Shouzheng WU, Qing ZHANG, Jun XU, Fusheng HUANG, Heng ZHANG, Ji SHAO, Dapeng LIU, Zhigang OUYANG, Baoqing YIN, Xiaojun WANG, Tongmin LIU
  • Patent number: 10257083
    Abstract: Techniques whereby a LAN-side border router observes all packets of an application flow from both directions so that the application recognition performed on the LAN-side border router functions properly. A border router may implement flags in a flow cache to indicate whether the border router is the LAN-side border router and/or a WAN-side border router for an application flow. As packets are received at a border router at either the LAN interface or WAN interface, the flags associated with packet's application flows are examined to determine if the border router is the LAN-side border router for the application flow. If so, then application recognition and routing control may be performed. If not, the packet may be redirected to another border router that may be the LAN-side border router or the WAN-side border router for the application flow to insure that border router observes the packet.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: April 9, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Alan Xiao-rong Wang, Dapeng Liu, Yu Zhang, Gaofeng Tao
  • Publication number: 20190092705
    Abstract: The present disclosure discloses a multistage nanoreactor catalyst and preparation and application thereof, belonging to the technical field of synthesis gas conversion. The catalyst consists of a core of an iron-based Fischer-Tropsch catalyst, a transition layer of a porous oxide or porous carbon material, and a shell layer of a molecular sieve having an aromatization function. The molecular sieve of the shell layer can be further modified by a metal element or a non-metal element, and the outer surface of the molecular sieve is further modified by a silicon-oxygen compound to adjust the acidic site on the outer surface and the aperture of the molecular sieve, thereby inhibiting the formation of heavy aromatic hydrocarbons. According to the disclosure, the shell layer molecular sieve with a transition layer and a shell layer containing or not containing auxiliaries, and with or without surface modification can be prepared by the iron-based Fischer-Tropsch catalyst through multiple steps.
    Type: Application
    Filed: November 27, 2018
    Publication date: March 28, 2019
    Inventors: Xiaohao Liu, Yuebing Xu, Feng Jiang, Bing Liu, Dapeng Liu, Ting Wang
  • Publication number: 20190087846
    Abstract: The present disclosure discloses a method for delivering promotion information. A delivery server obtains a set of promotion-information-items-to-be-delivered for a user, obtains a delivery-recommendation-degree corresponding to the user according to each of promotion-information-items-to-be-delivered in the set of promotion-information-items-to-be-delivered, determines, according to the delivery-recommendation-degree, one or more target promotion-information-items from the set of promotion-information-items-to-be-delivered; and delivers the target promotion-information-items to a user equipment corresponding to the user.
    Type: Application
    Filed: November 20, 2018
    Publication date: March 21, 2019
    Inventors: Dapeng LIU, Xiaoqing CAO
  • Publication number: 20190082107
    Abstract: Disclosed herein are techniques for camera illuminator control. These techniques can be used in cameras that include an RGBIR (red green blue infrared) camera sensor and two illuminators—one visible light illuminator and one infrared illuminator. The techniques provide timing and control for such cameras for a variety of different camera modes. Particular camera modes may be defined as having different camera mode values for different camera mode parameters. That is, any particular camera mode is defined by a particular camera mode value for each of a set of camera mode parameters. Different parameters include a flash periodicity parameter, a simultaneity parameter, an autoexposure mode parameter, a shutter mode parameter, and a frame drop parameter.
    Type: Application
    Filed: October 9, 2017
    Publication date: March 14, 2019
    Applicant: Advanced Micro Devices, Inc.
    Inventors: Hui Zhou, Chunrong Zhang, Dapeng Liu
  • Publication number: 20180211335
    Abstract: The present disclosure discloses a method and an apparatus for estimating user influence on a social network platform, and a computer storage medium. The method includes: obtaining user behavior data of a number of users on the social network platform; determining an influence transfer relationship between every two users among the number of users according to the user behavior data; estimating an influence-rank of a user of the number of users on the social network platform based on the influence transfer relationship; and determining influence of the user according to the influence-rank.
    Type: Application
    Filed: March 23, 2018
    Publication date: July 26, 2018
    Inventors: Ben TAN, Dapeng LIU, Xiaoqing CAO, Xiaopeng ZHANG, Lei XIAO
  • Publication number: 20180091461
    Abstract: In a message processing method and device described in the disclosed embodiments, a sender sends to a receiver a message in a read-only mode; the receiver displays content of the message in the read-only mode to a user; because the message is in the read-only mode, the receiver cannot store the message; the sender clears the content of the message and sends to the receiver the message with null content; the receiver again receives the message and updates displayed content of the message with content of the most recently received message; because the content of the message is already cleared at the sender, the content displayed at the receiver is also empty, thereby achieving the deletion of the message content. It can be appreciated that through the disclosed methods and devices, it can be guaranteed that both the message content being deleted at the receiver and the message not being stored by the receiver, thereby reducing the risk that the message content may be retained by the receiver.
    Type: Application
    Filed: April 6, 2016
    Publication date: March 29, 2018
    Inventors: Qing AN, Juntao PENG, Dapeng LIU
  • Publication number: 20180060903
    Abstract: An information delivery method is provided, including: determining a candidate information list in response to a page request sent by a user, where the candidate information list comprises a plurality pieces of information; generating ranks of the pieces of information in the candidate information list by sorting the plurality pieces of information in the candidate information list in accordance with a predetermined rule; acquiring a current average rank of the information of a designated type in the candidate information list based on the ranks of the pieces of information in the candidate information; and selecting designated delivery information from the information of the designated type, based on the current average rank of the information of the designated type and a historical average rank corresponding to the information of the designated type.
    Type: Application
    Filed: November 6, 2017
    Publication date: March 1, 2018
    Applicant: Tencent Technology (Shenzhen) Company Limited
    Inventors: Dapeng LIU, Lei XIAO
  • Publication number: 20180046724
    Abstract: In some embodiments, an information recommendation method includes: determining a target friend who has interacted with target recommended information; determining data of interaction made by the target user with previously shared information published by the target friend; determining an influence degree of the target friend on interaction to be made by the target user with the target recommended information based on the data of interaction; determining a target influence degree based on the influence degree of the target friend on the interaction to be made by the target user with the target recommended information; determining a probability degree of the interaction to be made by the target user with the target recommended information based on the target influence degree; and pushing the target recommended information to the target user, if the probability degree meets a preset condition.
    Type: Application
    Filed: October 23, 2017
    Publication date: February 15, 2018
    Inventors: Dapeng LIU, Xiaoqing CAO
  • Publication number: 20180018700
    Abstract: A method and device for processing promotion information and a system are provided. The method includes that: agreement information and exposure requirements of all promotion information within a preset period are acquired (101); directional delivered targets are determined according to the agreement information and the exposure requirements, and the directional delivered targets are split into multiple non-intersected delivered target sets (102); the promotion information is delivered to users corresponding to the corresponding delivered target sets according to the exposure requirements (103); statistics about social propagation amounts of to the delivered promotion information is made in real time in a delivery process (104); and exposure parameters are corrected according to the social propagation amounts (105), so that delivery of the promotion information is regulated in real time. By the method, the effectiveness and accuracy of delivering the promotion information may be improved.
    Type: Application
    Filed: July 7, 2017
    Publication date: January 18, 2018
    Inventors: Chuanjiang LUO, Lei XIAO, Dapeng LIU, Lili ZHAO, Peili LV, Xue BAI, Jinjing LIU, Wei XUE, Miao XU, Yang WANG