Patents by Inventor Rong Yan

Rong Yan 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: 9025703
    Abstract: The present invention relates to a software radio system and a decoding apparatus and method thereof. According to an embodiment of the present invention, there is provided a forward error correction decoding apparatus for a software radio system, including: a receiving module for receiving decoding tasks from a plurality of uplink channels; and a decoder matrix for executing the decoding tasks, wherein the decoder matrix is shared by the plurality of uplink channels. The decoding apparatus and method as well as the software radio system according to the embodiments of the present invention can be well adapted to the high computing capabilities, sufficient flexibility and scalability as required by base station systems for next-generation wireless communication systems.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: May 5, 2015
    Assignee: International Business Machines Corporation
    Inventors: Jian Wen Chen, Yong Hua Lin, Qing Wang, Rong Yan, Hai Zhan, Zhen Bo Zhu
  • Patent number: 9019949
    Abstract: An adapter, base band processing unit and a base station system. The adapter includes a frame obtaining logic unit configured to obtain an uplink data frame based on a received radio frame. A frame synchronizing logic unit configured to manage a frame tag of the uplink data frame. A time feedback logic unit configured to feedback to the base band processing unit an arrival time of a downlink data frame that is received from the base band processing unit. The base band processing unit includes a time synchronizing module configured to determine generation time of a current downlink data frame based on at least an arrival time of a previous downlink data frame that was a previous feed back from the adapter. A frame synchronizing module configured to manage a frame tag of the generated current downlink data frame.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: April 28, 2015
    Assignee: International Business Machines Corporation
    Inventors: Yonghua Lin, Rong Yan, Hai Zhan, Chao Zhu
  • Publication number: 20150087320
    Abstract: The present invention relates to a wireless network, and more specifically, to a method and apparatus for partitioning a coordination area in a wireless network, the method comprising: obtaining antenna directions of respective cells, base station locations of respective cells, and scope of a coordination area within the wireless network; determining an initial coordination area based on the scope of the coordination area and the base station locations in respective cells; partitioning the initial coordination area into an inner area and an outer area; partitioning the outer area into an inward area and an outward area based on the antenna directions of cells within the outer area and the base station locations of cells within the outer area; and combining the inner area and the inward area within the outer area into a new coordination area. The method is simple and easy.
    Type: Application
    Filed: March 28, 2013
    Publication date: March 26, 2015
    Inventors: Mingqiang Li, Yonghua Lin, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu
  • Patent number: 8983376
    Abstract: A method and apparatus for reducing spectrum interference between wireless networks. This is realized by arranging at least one sub-coordinating apparatus, namely, a monitoring apparatus, in respective wireless network, and by arranging a coordinating apparatus, namely, an allocation apparatus in the whole network. Wherein, the sub-coordinating apparatus monitors the spectrum utilization situation of the wireless network where it is located, reports it to the coordinating apparatus, and requests the coordinating apparatus for spectrum resource when new spectrum resource is needed. The coordinating apparatus maintains the spectrum utilization information of each wireless network, and allocates appropriate spectrum resource to the sub-coordinating apparatus which requests spectrum resource based on the maintained information.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: March 17, 2015
    Assignee: International Business Machines Corporation
    Inventors: Yonghua Lin, Jianbin Tang, Jun Song Wang, Qing Wang, Rong Yan, Hai Zhan, Chao Zhu, Zhen Bo Zhu
  • Patent number: 8902090
    Abstract: The present invention relates to data compression and decompression, and particularly relates to a method and an apparatus for compressing and decompressing signal data. In an embodiment of the present invention, there is disclosed a method for compressing signal data, comprising: obtaining signal data; determining block lengths of a plurality of data blocks into which the signal data are divided, and determining exponents of the data blocks; forming a mantissa sequence of the data block by using the exponent of the data block to compress signal data contained in the data block; and forming a compressed data block by using the block length, the exponent and the mantissa sequence of the data block. By constructing a variable-length data block adapted to dynamic characteristics of signal data, the method for compressing signal data of the present invention increases the compression ratio of signal data.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: December 2, 2014
    Assignee: International Business Machines Corporation
    Inventors: Xinhao Cheng, Mingqiang Li, Yonghua Lin, Qing Wang, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu
  • Patent number: 8884013
    Abstract: Polymorph I of dasatinib monohydrate and Polymorph II of dasatinib, their preparation methods and pharmaceutical compositions containing the same are provided. These polymorphs have better physicochemical properties, are more stable and are more suitable for industrial scale production.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: November 11, 2014
    Assignees: Nan Jing Cavendish Bio-Engineering Technology Co., Ltd.
    Inventors: Rong Yan, Hao Yang, Yongxiang Xu
  • Publication number: 20140321582
    Abstract: Various embodiments of the present invention provide a method and apparatus for parallel data processing. In one embodiment of the present invention, there is provided a method for parallel data processing, comprising: receiving baseband data corresponding to multiple antennas from uplink data; converting the baseband data from time-domain signals to frequency-domain signals; processing the frequency-domain signals at least partially in parallel by multiple processing units in a general-purpose processor so as to restore transmitted code blocks; and constructing transmission block (TB) based on the transmitted code blocks. In one embodiment of the present invention, there is provided an apparatus for parallel data processing. By means of the method and apparatus of the present invention, the parallel data processing capacity of a general-purpose data processor may be used to process, in parallel as much as possible, data in uplink data transmission and further improve the receiver operation efficiency.
    Type: Application
    Filed: April 21, 2014
    Publication date: October 30, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Xinhao Cheng, Yonghua Lin, Chao Xue, Rong Yan, Chao Zhu
  • Publication number: 20140229234
    Abstract: A social networking system presents content items to users, who then provide feedback regarding pairs of content items. The feedback includes a selection of a content item of the pair of content items that was preferred by the user over the other content item. The social networking system uses this information to train a predictive model that scores content items based on quality. The content items may be advertisements. The social networking system uses the pair-wise comparisons of the advertisements to determine feedback coefficients in an advertising quality score prediction model using regression analysis of the pair-wise comparisons for each predictive factor in the model. In this way, the pair-wise comparisons are used to train the prediction model to understand which advertisements are more enjoyable than others. A feedback coefficient for each predictive factor may be computed based on the preferences received from the group of users.
    Type: Application
    Filed: April 15, 2014
    Publication date: August 14, 2014
    Applicant: Facebook, Inc.
    Inventors: Rong Yan, John Hegeman
  • Publication number: 20140222802
    Abstract: A viewing user is provided with sponsored stories describes actions of a user connected to the viewing user associated with an object promoted by an advertiser or actions otherwise promoted by the advertiser. Based on a performance metric, the social networking system selects the user or action to be described by the sponsored story. For example, the social networking system ranks candidate sponsored stories describing different actions or users and selects a candidate sponsored story to increase the likelihood of a viewing user interacting with the selected candidate sponsored story.
    Type: Application
    Filed: February 5, 2013
    Publication date: August 7, 2014
    Applicant: Facebook, Inc.
    Inventors: Rong Yan, Eytan Bakshy, Hao Zhang, Huajing Li
  • Publication number: 20140207568
    Abstract: A social networking system receives advertisement requests from advertisers describing information about advertisements and determines one or more ad topics associated with the advertisements. When an advertisement is to be presented to a user, the social networking system determines one or more topics associated with the user from actions performed by the user and identifies candidate advertisements having ad topics matching, or similar to, the topics associated with the user. The topics associated with the user may be determined based on the user's most recent actions. One or more of the candidate advertisements are selected for presentation to the user.
    Type: Application
    Filed: January 24, 2013
    Publication date: July 24, 2014
    Inventors: Giridhar Rajaram, Rong Yan
  • Patent number: 8780886
    Abstract: A wireless communication system base station, and a remote radio head (RRH) and a computer-implemented synchronization method for the wireless communication system base station. The RRH is communicably coupled to a baseband unit (BBU) of the wireless communication system base station through a network, and the BBU processes and transmits downlink data to the RRH. The RRH includes: a time-delay measurement unit for measuring a time-delay for the downlink data to arrive at the RRH from the BBU; and a time-delay notification unit for notifying from the RRH to the BBU of time-delay data on the time-delay measured by the time-delay measurement unit, wherein the time-delay data is used to advance the starting time for the BBU to process and transmit the downlink data by an amount of time obtained based on the time-delay data.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: July 15, 2014
    Assignee: International Business Machines Corporation
    Inventors: Jian Wen Chen, Lin Chen, Yonghua Lin, Qing Wang, Rong Yan, Zhen Bo Zhu
  • Patent number: 8768774
    Abstract: An advertising system may enable an advertiser to associate multiple targeting criteria bids with an advertisement. The targeting criteria bids include a bid amount and a targeting criteria defining a group of users who may be delivered the advertisement. The cost for the advertisement is the sum of the bid amounts associated with the targeting criteria that match the user profile of the viewing user.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: July 1, 2014
    Assignee: Facebook, Inc.
    Inventors: Rong Yan, Huajing Li
  • Patent number: 8767710
    Abstract: A wireless communication system base station, and a remote radio head (RRH) and a computer-implemented synchronization method for the wireless communication system base station. The RRH is communicably coupled to a baseband unit (BBU) of the wireless communication system base station through a network, and the BBU processes and transmits downlink data to the RRH. The RRH includes: a time-delay measurement unit for measuring a time-delay for the downlink data to arrive at the RRH from the BBU; and a time-delay notification unit for notifying from the RRH to the BBU of time-delay data on the time-delay measured by the time-delay measurement unit, wherein the time-delay data is used to advance the starting time for the BBU to process and transmit the downlink data by an amount of time obtained based on the time-delay data.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: July 1, 2014
    Assignee: International Business Machines Corporation
    Inventors: Jian Wen Chen, Lin Chen, Yonghua Lin, Qing Wang, Rong Yan, Zhen Bo Zhu
  • Patent number: 8762602
    Abstract: An information handling system includes a multi-core processor that processes variable-length code (VLC) bitstream data. The bitstream data includes multiple codewords that the processor organizes into functionally common subsets. The processor includes a general purpose processor (GPU) and one or more special purpose processor (SPUs). An SPU of the processor may includes two SPU buffers. The processor first transfers bitstream data into GPU buffer memory and then populates the SPU buffers one after another with bitstream data. The SPU buffers may each include an overlap region that the SPU populates with the same bitstream data. The SPU parses the bitstream data in the SPU buffers in alternating fashion. The SPU may shift parsing from the one SPU buffer to the other SPU buffer when parsing reaches a subset boundary within an overlap region.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: June 24, 2014
    Assignee: International Business Machines Corporation
    Inventors: Kuan Feng, Huo Ding Li, Xing S H Liu, Rong Yan, Yu Yuan, Sheng Xu
  • Patent number: 8738698
    Abstract: A social networking system presents content items to users, who then provide feedback regarding pairs of content items. The feedback includes a selection of a content item of the pair of content items that was preferred by the user over the other content item. The social networking system uses this information to train a predictive model that scores content items based on quality. The content items may be advertisements. The social networking system uses the pair-wise comparisons of the advertisements to determine feedback coefficients in an advertising quality score prediction model using regression analysis of the pair-wise comparisons for each predictive factor in the model. In this way, the pair-wise comparisons are used to train the prediction model to understand which advertisements are more enjoyable than others. A feedback coefficient for each predictive factor may be computed based on the preferences received from the group of users.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: May 27, 2014
    Assignee: Facebook, Inc.
    Inventors: Rong Yan, John Hegeman
  • Publication number: 20140089400
    Abstract: A seed cluster comprising a group of users who share a particular attribute and/or affiliation is determined by a social networking system. For each user of the seed cluster, other users and/or entities connected to the user in the social networking system are retrieved. For each retrieved other user or entity, the social networking system may determine whether the other user or entity exhibits the attribute or affiliation based on a random walk algorithm. A resulting targeting cluster of users and/or entities may be used for targeting advertisements targeting to members. A social networking system may also infer an affiliation for a user based on the user's interaction with a page, application, or entity where other users who interacted with the same page, application, or entity have the same affiliation.
    Type: Application
    Filed: September 24, 2012
    Publication date: March 27, 2014
    Applicant: Facebook, Inc.
    Inventors: Rong Yan, Ankush Singla, Antonio Felipe Garcia-Martinez, Philip Anastasios Zigoris
  • Patent number: 8638819
    Abstract: A wireless communication transceiver and a mode switch device thereof. The transceiver includes: a first band transmission path; a first band reception path; a second band transmission path; a second band reception path; a path switch and a control unit. In a dual band time division duplexing mode, the control unit controls the path switch so that the path switch connects a received radio frequency signal from an antenna to the first band reception path, and connects a transmitted radio frequency signal from the second band transmission path to the antenna in an odd cycle or an even cycle; and controls the path switch so that the path switch connects a received radio frequency signal from the antenna to the second band reception path, and connects a transmitted radio frequency signal from the first band transmission path to the antenna in another odd cycle or another even cycle.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: January 28, 2014
    Assignee: International Business Machines Corporation
    Inventors: Jian Wen Chen, Lin Chen, Yong Hua Lin, Qing Wang, Rong Yan, Zhen Bo Zhu
  • Publication number: 20140012659
    Abstract: A social networking system modifies targeting criteria for an advertising campaign received form an advertiser using performance of completed advertising campaigns with similar characteristics. Completed advertising campaigns having similar targeting criteria to a received advertising campaign are identified. For example, completed advertising campaigns with targeting criteria matching, or associated with, targeting criteria from the received advertising campaign are identified. The social networking system determines an estimated amount to spend on the received advertising campaign based on the amount spent for the completed advertising campaigns, the social networking system. A received budget for the received advertising campaign is compared to the estimated amount to spend, and the social networking system may suggest modifications to the targeting criteria to optimize use of the budget based on performance of the completed advertising campaigns.
    Type: Application
    Filed: July 9, 2012
    Publication date: January 9, 2014
    Inventor: Rong Yan
  • Publication number: 20130336237
    Abstract: An adapter, base band processing unit and a base station system. The adapter includes a frame obtaining logic unit configured to obtain an uplink data frame based on a received radio frame. A frame synchronizing logic unit configured to manage a frame tag of the uplink data frame. A time feedback logic unit configured to feedback to the base band processing unit an arrival time of a downlink data frame that is received from the base band processing unit. The base band processing unit includes a time synchronizing module configured to determine generation time of a current downlink data frame based on at least an arrival time of a previous downlink data frame that was a previous feed back from the adapter. A frame synchronizing module configured to manage a frame tag of the generated current downlink data frame.
    Type: Application
    Filed: March 12, 2013
    Publication date: December 19, 2013
    Inventors: Yonghua Lin, Rong Yan, Hai Zhan, Chao Zhu
  • Publication number: 20130324176
    Abstract: A radio unit configured to connect to a baseband processing unit includes a transformation unit configured to obtain uplink time domain signal data and transform the uplink time domain signal data into uplink frequency domain signal data; and a compression unit configured to compress the uplink frequency domain signal data by using a compression algorithm.
    Type: Application
    Filed: May 22, 2013
    Publication date: December 5, 2013
    Applicant: International Business Machines Corporation
    Inventors: Xinhao Cheng, Mingqiang Li, Yonghua Lin, Qing Wang, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu