Patents by Inventor Keijo L T Palviainen

Keijo L T Palviainen 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: 6167264
    Abstract: Visitor location register and a method for handling an outgoing and an incoming call in a mobile communications system employing a multinumbering scheme. Signalling originating from a mobile services switching center (MSC) contains in case of a mobile-originating call the directory number of the calling subscriber and, in call forwarding, the redirecting number. This directory number is obtained from the visitor location register (VLR). All the directory numbers for different basic services of the mobile subscriber are transferred from the home location register (HLR) to the VLR. The VLR is thus capable of providing the MSC with the correct one of multiple directory numbers according to the basic service related to the call.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: December 26, 2000
    Assignee: Nokia Telecommunications OY
    Inventors: Keijo L T Palviainen, Hannu-Pekka Salin