Patents by Inventor Haijun Jiang

Haijun Jiang 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).

  • Patent number: 11303485
    Abstract: A signal acquisition method and device. Positioning signals as received are divided into at least two groups and frequency compensation is performed on each group of positioning signals. Each frequency compensated group of positioning signals is divided into at least two signal blocks, and an averaging operation is performed on the signal blocks in each group of signals, so as to obtain block-averaged groups of positioning signals. An acquisition result is determined based on the block-averaged groups of positioning signals. Noise power of each block-averaged group of signals is reduced. Therefore, noise power of received positioning signals can be reduced. This may improve signal-to-noise ratio of received signals and acquisition sensitivity of a receiver. Therefore, acquisition success rate of weak signals is increased.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: April 12, 2022
    Assignee: BEIJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS
    Inventors: Zhongliang Deng, Buyun Jia, Jun Mo, Xinmei Bian, Haijun Jiang, Shiwei Fan
  • Publication number: 20210231816
    Abstract: A signal acquisition method and device. Positioning signals as received are divided into at least two groups and frequency compensation is performed on each group of positioning signals. Each frequency compensated group of positioning signals is divided into at least two signal blocks, and an averaging operation is performed on the signal blocks in each group of signals, so as to obtain block-averaged groups of positioning signals. An acquisition result is determined based on the block-averaged groups of positioning signals. Noise power of each block-averaged group of signals is reduced. Therefore, noise power of received positioning signals can be reduced. This may improve signal-to-noise ratio of received signals and acquisition sensitivity of a receiver. Therefore, acquisition success rate of weak signals is increased.
    Type: Application
    Filed: March 8, 2019
    Publication date: July 29, 2021
    Inventors: ZHONGLIANG DENG, BUYUN JIA, JUN MO, XINMEI BIAN, HAIJUN JIANG, SHIWEI FAN
  • Publication number: 20200241148
    Abstract: A signal acquisition method and device. Positioning signals as received are divided into at least two groups and frequency compensation is performed on each group of positioning signals. Each frequency compensated group of positioning signals is divided into at least two signal blocks, and an averaging operation is performed on the signal blocks in each group of signals, so as to obtain block-averaged groups of positioning signals. An acquisition result is determined based on the block-averaged groups of positioning signals. Noise power of each block-averaged group of signals is reduced. Therefore, noise power of received positioning signals can be reduced. This may improve signal-to-noise ratio of received signals and acquisition sensitivity of a receiver. Therefore, acquisition success rate of weak signals is increased.
    Type: Application
    Filed: March 8, 2019
    Publication date: July 30, 2020
    Inventors: ZHONGLIANG DENG, BUYUN JIA, JUN MO, XINMEI BIAN, HAIJUN JIANG, SHIWEI FAN
  • Publication number: 20140253803
    Abstract: A method for displaying an interactive message. The method includes: acquiring social network site (SNS) picture in picture (PIP) configuration information; logging in to a social network site server according to the SNS PIP configuration information; acquiring a user contact message by detecting the SNS server; parsing the contact message; and displaying the contact message in a PIP window on a user terminal by invoking a PIP interface provided by a media playback platform. This method enables a user to obtain an SNS contact message in a timely manner on a content playback page. Included is an apparatus and a system for displaying an interactive message.
    Type: Application
    Filed: May 20, 2014
    Publication date: September 11, 2014
    Applicant: Huawei Technologies Co., Ltd.
    Inventor: Haijun Jiang
  • Patent number: 8433793
    Abstract: A dispatching method, a dispatching apparatus and a dispatching system are disclosed according to embodiments of the present invention. The dispatching method includes receiving a request initiated by a user terminal, where the request carries address information of the user terminal; obtaining the address information carried in the request and obtaining key information of an access server associated with the address information; searching for a corresponding node based on the key information of the access server and treating the node as a redirected serving node. A dispatching apparatus and a dispatching system are also disclosed according to embodiments of the present invention. The technical solution of the embodiments of the present invention may well solve the dispatching issue and has a more flexible application.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: April 30, 2013
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Haijun Jiang, Ye Zhao
  • Publication number: 20110307944
    Abstract: A dispatching method, a dispatching apparatus and a dispatching system are disclosed according to embodiments of the present invention. The dispatching method includes receiving a request initiated by a user terminal, where the request carries address information of the user terminal; obtaining the address information carried in the request and obtaining key information of an access server associated with the address information; searching for a corresponding node based on the key information of the access server and treating the node as a redirected serving node. A dispatching apparatus and a dispatching system are also disclosed according to embodiments of the present invention. The technical solution of the embodiments of the present invention may well solve the dispatching issue and has a more flexible application.
    Type: Application
    Filed: August 24, 2011
    Publication date: December 15, 2011
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Haijun JIANG, Ye ZHAO
  • Patent number: 8078723
    Abstract: A dispatching method, a dispatching apparatus and a dispatching system are disclosed according to embodiments of the present invention. The dispatching method includes receiving a request initiated by a user terminal, where the request carries address information of the user terminal; obtaining the address information carried in the request and obtaining key information of an access server associated with the address information; searching for a corresponding node based on the key information of the access server and treating the node as a redirected serving node. A dispatching apparatus and a dispatching system are also disclosed according to embodiments of the present invention. The technical solution of the embodiments of the present invention may well solve the dispatching issue and has a more flexible application.
    Type: Grant
    Filed: November 22, 2009
    Date of Patent: December 13, 2011
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Haijun Jiang, Ye Zhao
  • Publication number: 20110093607
    Abstract: A method and system for providing a media stream service are provided. The method includes: receiving a request of providing a media stream service sent by a user terminal, the request carrying information of a Service Provider (SP); obtaining an ability strategy of the SP according to the SP's information carried in the request; and selecting, according to the ability strategy of the SP, a Content Delivery Network (CDN) or Peer to Peer (P2P) mode to provide the media stream service for the user. Through the technical solutions, the CDN or P2P mode can be selected, according to the ability strategy of the SP or current ability operating statuses of the CDN and the P2P, to provide the media stream service for the user.
    Type: Application
    Filed: December 27, 2010
    Publication date: April 21, 2011
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Zhibing WANG, Haijun Jiang
  • Publication number: 20100131634
    Abstract: A dispatching method, a dispatching apparatus and a dispatching system are disclosed according to embodiments of the present invention. The dispatching method includes receiving a request initiated by a user terminal, where the request carries address information of the user terminal; obtaining the address information carried in the request and obtaining key information of an access server associated with the address information; searching for a corresponding node based on the key information of the access server and treating the node as a redirected serving node. A dispatching apparatus and a dispatching system are also disclosed according to embodiments of the present invention. The technical solution of the embodiments of the present invention may well solve the dispatching issue and has a more flexible application.
    Type: Application
    Filed: November 22, 2009
    Publication date: May 27, 2010
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Haijun Jiang, Ye Zhao