Patents by Inventor Juho Laatu

Juho Laatu 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).

  • Patent number: 7340239
    Abstract: A method and device are disclosed for accessing an emergency call number in a terminal. A signal sends a first identity to a smart card in the terminal, if access is sought to an emergency number readable by terminals that support calls for types of emergencies. If access is instead or additionally sought to at least one emergency number readable by substantially any terminal compatible with third generation specifications, then a second identity is sent to the smart card. Subsequently, the emergency number or numbers are received from the smart card. This smart card functions in a terminal configured to only send the second identity, and it also functions in a terminal configured to send both identities.
    Type: Grant
    Filed: January 5, 2004
    Date of Patent: March 4, 2008
    Assignee: Nokia Corporation
    Inventor: Juho Laatu
  • Publication number: 20050148316
    Abstract: A method and device are disclosed for accessing an emergency call number in a terminal. A signal sends a first identity to a smart card in the terminal, if access is sought to an emergency number readable by terminals that support calls for types of emergencies. If access is instead or additionally sought to at least one emergency number readable by substantially any terminal compatible with third generation specifications, then a second identity is sent to the smart card. Subsequently, the emergency number or numbers are received from the smart card. This smart card functions in a terminal configured to only send the second identity, and it also functions in a terminal configured to send both identities.
    Type: Application
    Filed: January 5, 2004
    Publication date: July 7, 2005
    Inventor: Juho Laatu
  • Patent number: 6212380
    Abstract: An arrangement and method for carrying out a handover between first and second base station controllers in a telecommunications system that includes a local exchange of a fixed network; mobile stations; base station systems providing the mobile stations with a wireless access network to the local exchange, each base station system having a base station controller and a plurality of base stations; transmission circuits for connecting the local exchange to the base station controllers; the control of the handover between the base station controllers being located in the base station controllers so that the first base station controller of the call functions as the anchor point at which the original connection established via the local exchange is maintained, and from which a further connection is established to a second base station controller in a handover.
    Type: Grant
    Filed: August 20, 1997
    Date of Patent: April 3, 2001
    Assignee: Nokia Telecommunications Oy
    Inventor: Juho Laatu
  • Patent number: 5960345
    Abstract: The invention relates to a cellular radio network and a method for performing location updating in a cellular radio system. The cellular radio network does not employ fixed location areas, as prior cellular radio networks do, but it employs a location area configuration which is subscriber station specific and dynamically adaptive. In connection with each location updating, it is therefore possible to select an optimal location area for the subscriber station at that particular moment, the selected location area being preferably of an arbitrary size and form. It is thus possible to define the location area subscriber station specifically in such a manner that, on one hand, it is sufficiently large so that the subscriber station does not have to perform location updating frequently but, on the other hand, sufficiently small so that the paging of the subscriber station does not load the cellular radio network too much.
    Type: Grant
    Filed: March 4, 1997
    Date of Patent: September 28, 1999
    Assignee: Nokia Telecommunications Oy
    Inventor: Juho Laatu
  • Patent number: 5664004
    Abstract: In mobile radio systems, it may be necessary to support multiple radio interfaces within a single mobile radio network. To support these multiple radio interfaces, it may be necessary to support even multiple signalling protocols within a single interface between a base station controller and a mobile switch, when base stations supporting different radio interfaces are connected via a common base station controller to the mobile switch. The mobile switch and the base station controller must be capable of recognizing to which signalling protocol a message transfer in the single interface belongs to. The messages transferred in the single interface are provided with a discrimination parameter which can be used to discriminate between the messages belonging to different radio interfaces and signalling protocols.
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: September 2, 1997
    Assignee: Nokia Telecommunications OY
    Inventors: Elina Durchman, Juho Laatu, Sanna Maenpaa