Patents by Inventor Karl E. Freter

Karl E. Freter 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).

  • Presence detection for cellular and internet protocol telephony
    Patent number: 7809381
    Abstract: A telephone system supports communication with user devices over both a cellular radio network as well as over an Internet Protocol (IP) network, and enables roaming and active call handoff between cellular and IP domains. Approaches to detecting presence of a user near a suitable IP network are used in controlling transitions between the domains, for example, enabling automatic transitions between domains, and delivery of calls to a mobile user to data network devices in the vicinity of the user.
    Type: Grant
    Filed: July 18, 2005
    Date of Patent: October 5, 2010
    Assignee: Bridgeport Networks, Inc.
    Inventors: Justin A. Aborn, Karl E. Freter, Sanjay S. Jhawar, James D. O'Brien, Jr., Mats A. Samuelsson, Bruce M. Wiatrak, Andre De Verteuil, Ivan Dean Bogdanovic
  • Pre-delivery notification of user data for wireless packet data systems
    Publication number: 20030099257
    Abstract: A method and apparatus are provided for reducing delivery time latency in data transferred between a packet data service network and mobile data device. The method includes the steps of detecting an indicia of bandwidth needed for information to be transferred from the packet data service network to the mobile data device, comparing an attribute of the indicia with a predetermined criteria and notifying a wireless interface controller servicing the wireless data device when the attribute of the data block exceeds the predetermined file criteria.
    Type: Application
    Filed: November 28, 2001
    Publication date: May 29, 2003
    Inventors: Karl E. Freter, Robert J. Marks, Ikhlaq Sidhu, Timothy J. Wilson