Patents by Inventor Jianyu Zeng

Jianyu Zeng 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).

  • Method of seamless roaming between wireless local area networks and cellular carrier networks
    Patent number: 9526035
    Abstract: A scheme that enables seamless roaming between the WLAN and the cellular carrier network by enabling a user that originates a call in the WLAN and happens to go outside the range of the WLAN to automatically switch over to the cellular carrier network without losing connection with the other party. This solution assumes that the mobile device has the capability to operate in at least two modes that include the WLAN mode and one of the cellular carrier modes, such as the GSM, IS-95 CDMA, IS-136 TDMA, and iDEN.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: December 20, 2016
    Assignee: Cisco Technology, Inc.
    Inventors: Oliver C. Ibe, Jianyu Zeng
  • METHOD OF SEAMLESS ROAMING BETWEEN WIRELESS LOCAL AREA NETWORKS AND CELLULAR CARRIER NETWORKS
    Publication number: 20130329697
    Abstract: A scheme that enables seamless roaming between the WLAN and the cellular carrier network by enabling a user that originates a call in the WLAN and happens to go outside the range of the WLAN to automatically switch over to the cellular carrier network without losing connection with the other party. This solution assumes that the mobile device has the capability to operate in at least two modes that include the WLAN mode and one of the cellular carrier modes, such as the GSM, IS-95 CDMA, IS-136 TDMA, and iDEN.
    Type: Application
    Filed: August 12, 2013
    Publication date: December 12, 2013
    Applicant: KRAASTEN BROS. FUND B.V. LLC
    Inventors: Oliver C. Ibe, Jianyu Zeng
  • Method of seamless roaming between wireless local links and cellular carrier networks
    Patent number: 8509789
    Abstract: A scheme that enables seamless roaming between the WLAN and the cellular carrier network by enabling a user that originates a call in the WLAN and happens to go outside the range of the WLAN to automatically switch over to the cellular carrier network without losing connection with the other party. This solution assumes that the mobile device has the capability to operate in at least two modes that include the WLAN mode and one of the cellular carrier modes, such as the GSM, IS-95 CDMA, IS-136 TDMA, and iDEN.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: August 13, 2013
    Assignee: Kraasten Bros. Fund B.V. LLC
    Inventors: Oliver C. Ibe, Jianyu Zeng
  • Method of Seamless Roaming Between Wireless Local Area Networks and Cellular Carrier Networks
    Publication number: 20120028646
    Abstract: A scheme that enables seamless roaming between the WLAN and the cellular carrier network by enabling a user that originates a call in the WLAN and happens to go outside the range of the WLAN to automatically switch over to the cellular carrier network without losing connection with the other party. This solution assumes that the mobile device has the capability to operate in at least two modes that include the WLAN mode and one of the cellular carrier modes, such as the GSM, IS-95 CDMA, IS-136 TDMA, and iDEN.
    Type: Application
    Filed: October 6, 2011
    Publication date: February 2, 2012
    Applicant: KRAASTEN BROS. FUND B.V. LLC
    Inventors: Oliver C. Ibe, Jianyu Zeng
  • Method of seamless roaming between wireless local area networks and cellular carrier networks
    Patent number: 8041360
    Abstract: A scheme that enables seamless roaming between the WLAN and the cellular carrier network by enabling a user that originates a call in the WLAN and happens to go outside the range of the WLAN to automatically switch over to the cellular carrier network without losing connection with the other party. This solution assumes that the mobile device has the capability to operate in at least two modes that include the WLAN mode and one of the cellular carrier modes, such as the GSM, IS-95 CDMA, IS-136 TDMA, and iDEN.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: October 18, 2011
    Assignee: Kraasten Bros. Fund B.V. LLC
    Inventors: Oliver C. Ibe, Jianyu Zeng
  • Method of Seamless Roaming Between Wireless Local Area Networks and Cellular Carrier Networks
    Publication number: 20100323665
    Abstract: A scheme that enables seamless roaming between the WLAN and the cellular carrier network by enabling a user that originates a call in the WLAN and happens to go outside the range of the WLAN to automatically switch over to the cellular carrier network without losing connection with the other party. This solution assumes that the mobile device has the capability to operate in at least two modes that include the WLAN mode and one of the cellular carrier modes, such as the GSM, IS-95 CDMA, IS-136 TDMA, and iDEN.
    Type: Application
    Filed: September 1, 2010
    Publication date: December 23, 2010
    Inventors: Oliver C. Ibe, Jianyu Zeng
  • Method of seamless roaming between wireless local area networks and cellular carrier networks
    Patent number: 7835751
    Abstract: A scheme that enables seamless roaming between the WLAN and the cellular carrier network by enabling a user that originates a call in the WLAN and happens to go outside the range of the WLAN to automatically switch over to the cellular carrier network without losing connection with the other party. This solution assumes that the mobile device has the capability to operate in at least two modes that include the WLAN mode and one of the cellular carrier modes, such as the GSM, IS-95 CDMA, IS-136 TDMA, and iDEN.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: November 16, 2010
    Inventors: Oliver C. Ibe, Jianyu Zeng
  • Method of seamless roaming between wireless local area networks and cellular carrier networks
    Publication number: 20040087307
    Abstract: A scheme that enables seamless roaming between the WLAN and the cellular carrier network by enabling a user that originates a call in the WLAN and happens to go outside the range of the WLAN to automatically switch over to the cellular carrier network without losing connection with the other party. This solution assumes that the mobile device has the capability to operate in at least two modes that include the WLAN mode and one of the cellular carrier modes, such as the GSM, IS-95 CDMA, IS-136 TDMA, and iDEN.
    Type: Application
    Filed: October 17, 2003
    Publication date: May 6, 2004
    Inventors: Oliver C. Ibe, Jianyu Zeng