Patents by Inventor Sang-Youb Kim

Sang-Youb Kim 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: 9374142
    Abstract: To perform wireless communications in a closed loop multiple input, multiple output (MIMO) system, a feedback data structure is communicated over a wireless channel between a first wireless node and a second wireless node, where the feedback data structure contains indicators identifying coding to be applied by the second wireless node on signaling communicated between the second wireless node and the first wireless node, where the information in the feedback data structure is based on wireless channel conditions detected at the first wireless node. The indicators identify different codings to be used for different corresponding bands in the wireless channel.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: June 21, 2016
    Assignee: Apple Inc.
    Inventors: Kathiravetpillai Sivanesan, Peiying Zhu, Sang-Youb Kim, Lai King Tee, Junfeng Xiao
  • Publication number: 20150280794
    Abstract: To perform wireless communications in a closed loop multiple input, multiple output (MIMO) system, a feedback data structure is communicated over a wireless channel between a first wireless node and a second wireless node, where the feedback data structure contains indicators identifying coding to be applied by the second wireless node on signaling communicated between the second wireless node and the first wireless node, where the information in the feedback data structure is based on wireless channel conditions detected at the first wireless node. The indicators identify different codings to be used for different corresponding bands in the wireless channel.
    Type: Application
    Filed: June 12, 2015
    Publication date: October 1, 2015
    Inventors: Kathiravetpillai Sivanesan, Peiying Zhu, Sang-Youb Kim, Lai King Tee, Junfeng Xiao
  • Patent number: 9088317
    Abstract: To perform wireless communications in a closed loop multiple input, multiple output (MIMO) system, a feedback data structure is communicated over a wireless channel between a first wireless node and a second wireless node, where the feedback data structure contains indicators identifying coding to be applied by the second wireless node on signaling communicated between the second wireless node and the first wireless node, where the information in the feedback data structure is based on wireless channel conditions detected at the first wireless node. The indicators identify different codings to be used for different corresponding bands in the wireless channel.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: July 21, 2015
    Assignee: Apple Inc.
    Inventors: Kathiravetpillai Sivanesan, Peiying Zhu, Sang-Youb Kim, Lai King Tee, Junfeng Xiao
  • Patent number: 8929245
    Abstract: To perform wireless communications in a closed loop multiple input, multiple output (MIMO) system, a feedback data structure is communicated over a wireless channel between a first wireless node and a second wireless node, where the feedback data structure contains indicators identifying coding to be applied by the second wireless node on signaling communicated between the second wireless node and the first wireless node, where the information in the feedback data structure is based on wireless channel conditions detected at the first wireless node. The indicators identify different codings to be used for different corresponding bands in the wireless channel.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: January 6, 2015
    Assignee: Apple Inc.
    Inventors: Kathiravetpillai Sivanesan, Peiying Zhu, Sang-Youb Kim, Lai King Tee, Junfeng Xiao
  • Publication number: 20130343339
    Abstract: To perform wireless communications in a closed loop multiple input, multiple output (MIMO) system, a feedback data structure is communicated over a wireless channel between a first wireless node and a second wireless node, where the feedback data structure contains indicators identifying coding to be applied by the second wireless node on signaling communicated between the second wireless node and the first wireless node, where the information in the feedback data structure is based on wireless channel conditions detected at the first wireless node. The indicators identify different codings to be used for different corresponding bands in the wireless channel.
    Type: Application
    Filed: August 21, 2013
    Publication date: December 26, 2013
    Applicant: Apple Inc.
    Inventors: Kathiravetpillai Sivanesan, Peiying Zhu, Sang-Youb Kim, Lai King Tee, Junfeng Xiao
  • Publication number: 20130336416
    Abstract: To perform wireless communications in a closed loop multiple input, multiple output (MIMO) system, a feedback data structure is communicated over a wireless channel between a first wireless node and a second wireless node, where the feedback data structure contains indicators identifying coding to be applied by the second wireless node on signaling communicated between the second wireless node and the first wireless node, where the information in the feedback data structure is based on wireless channel conditions detected at the first wireless node. The indicators identify different codings to be used for different corresponding bands in the wireless channel.
    Type: Application
    Filed: August 21, 2013
    Publication date: December 19, 2013
    Applicant: Apple Inc.
    Inventors: Kathiravetpillai Sivanesan, Peiying Zhu, Sang-Youb Kim, Lai King Tee, Junfeng Xiao
  • Patent number: 8531958
    Abstract: To perform wireless communications in a closed loop multiple input, multiple output (MIMO) system, a feedback data structure is communicated over a wireless channel between a first wireless node and a second wireless node, where the feedback data structure contains indicators identifying coding to be applied by the second wireless node on signaling communicated between the second wireless node and the first wireless node, where the information in the feedback data structure is based on wireless channel conditions detected at the first wireless node. The indicators identify different codings to be used for different corresponding bands in the wireless channel.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: September 10, 2013
    Assignee: Apple Inc.
    Inventors: Kathiravetpillai Sivanesan, Peiying Zhu, Sang-Youb Kim, Lai King Tee, Junfeng Xiao
  • Publication number: 20110038308
    Abstract: To perform wireless communications in a wireless network, at least two spatial beams are formed within a cell segment, where the at least two spatial beams are associated with different power levels. The at least two spatial beams are swept across the cell segment according to a sweep pattern. In some implementations, multiple antenna assemblies can be used, where each antenna assembly has plural antenna elements. A lower one of the antenna assemblies can be used to form high and lower power beams, and an upper one of the antenna assemblies can be used to communicate backhaul information, for example.
    Type: Application
    Filed: October 6, 2008
    Publication date: February 17, 2011
    Inventors: Yi Song, Geng Wu, Jun Li, Neng Wang, Kathiravetpillai Sivanesan, Sang-Youb Kim, Rose Hu, David Paranchych, Lai-King Tee
  • Publication number: 20110013563
    Abstract: To perform wireless communications in a closed loop multiple input, multiple output (MIMO) system, a feedback data structure is communicated over a wireless channel between a first wireless node and a second wireless node, where the feedback data structure contains indicators identifying coding to be applied by the second wireless node on signaling communicated between the second wireless node and the first wireless node, where the information in the feedback data structure is based on wireless channel conditions detected at the first wireless node. The indicators identify different codings to be used for different corresponding bands in the wireless channel.
    Type: Application
    Filed: February 27, 2009
    Publication date: January 20, 2011
    Inventors: Kathiravetpillai Sivanesan, Peiying Zhu, Sang-Youb Kim, Lai King Tee, Junfeng Xia