Patents by Inventor Jinhua Ling

Jinhua Ling 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).

  • Call setup for circuit switched fall back calls
    Patent number: 8817749
    Abstract: Establishing a circuit-switched fallback (CSFB) call. A request to establish a CSFB call may be received. A first wireless link with a first cell may be released. The first cell may provide packet-switched services but not circuit-switched services. A second wireless link may be established with a second cell. The second cell may provide packet-switched services and circuit-switched services. The CSFB call may be established via the connection to the second cell. Packet-switched registration with the second cell may be performed after the CSFB call is established.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: August 26, 2014
    Assignee: Apple Inc.
    Inventors: Sai Sravan Bharadwaj Karri, Mohan Rao Thota, Jinhua Ling, Sachin J Sane
  • Call Setup for Circuit Switched Fall Back Calls
    Publication number: 20140050196
    Abstract: Establishing a circuit-switched fallback (CSFB) call. A request to establish a CSFB call may be received. A first wireless link with a first cell may be released. The first cell may provide packet-switched services but not circuit-switched services. A second wireless link may be established with a second cell. The second cell may provide packet-switched services and circuit-switched services. The CSFB call may be established via the connection to the second cell. Packet-switched registration with the second cell may be performed after the CSFB call is established.
    Type: Application
    Filed: August 15, 2012
    Publication date: February 20, 2014
    Inventors: Sai Sravan Bharadwaj Karri, Mohan Rao Thota, Jinhua Ling, Sachin J. Sane