Patents by Inventor Ingemar Lindgren

Ingemar Lindgren 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).

  • Secure XDM communication between IMS networks
    Patent number: 9596270
    Abstract: Requests between first and second IMS network domains are communicated by receiving an XDM request in the first domain. The XDM request relates to an XML document that can be accessed via the XDM request from a location in the second domain. A SIP request is created that includes information identifying it as a request that relates to an XDM request. The SIP request is sent to the second domain so that the SIP request can be routed to the location in the second domain based on the identifying information in the SIP request. A connection for XDM requests between the first and second domains is established.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: March 14, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mikael Klein, Christer Boberg, Anders Lindgren, Ingemar Lindgren, Gert Oster
  • Secure XDM Communication Between IMS Networks
    Publication number: 20130031257
    Abstract: Requests between first and second IMS network domains are communicated by receiving an XDM request in the first domain. The XDM request relates to an XML document that can be accessed via the XDM request from a location in the second domain. A SIP request is created that includes information identifying it as a request that relates to an XDM request. The SIP request is sent to the second domain so that the SIP request can be routed to the location in the second domain based on the identifying information in the SIP request. A connection for XDM requests between the first and second domains is established.
    Type: Application
    Filed: November 16, 2009
    Publication date: January 31, 2013
    Applicant: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Mikael Klein, Christer Boberg, Anders Lindgren, Ingemar Lindgren, Gert Oster
  • Device for changing the transmission parameters in a radio transmitter
    Patent number: 5768260
    Abstract: In a radio system of the digital simultaneous type comprising a number of radio transmitters, information is transmitted on the same nominal frequency. The system is also intended to transmit specific test information, with the intention of achieving optimal performance of measuring receivers. Receivers, either measuring receivers or conventional receivers, register their geographical location in the system and the reception conditions of different stations with the aid of the test information. The measuring result is returned to the transmitter stations, to decide which measures shall be taken. When this return of the measuring result from the reception area is automatic, changes in the transmission parameters will be effected automatically and continuously while taking prevailing traffic situations into account.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: June 16, 1998
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventors: Ingemar Lindgren, Sven-Rune Olofsson, Greger Isaksson