Patents by Inventor Fredrik Sällström

Fredrik Sällström 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).

  • Power status for wireless communications
    Patent number: 7433702
    Abstract: A wireless local area network (LAN) is operated so that a mobile terminal (MT) transmits various power-related information over an air interface to a power status repository (PSR) of the wireless local area network (LAN). For example, in one aspect of the invention, the mobile terminal transmits power status information, the power status information having an indication of whether the mobile terminal is currently operating using battery power or line power. The power status information is transmitted at one of the following times: (1) upon power-up of the mobile terminal; (2) upon command issued from the power status repository; (3) upon establishment of a connection between the mobile terminal and the LAN; and (4) upon a change in power status for the mobile terminal. The power status repository (PSR) can take the form of an Access Point (AP) for an intranet, or another mobile terminal in the case of an ad hoc network.
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: October 7, 2008
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jan Lindskog, Fredrik Sällström, Lorens Almehag, Göran Malmgren