Patents by Inventor Pekka Orava

Pekka Orava 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).

  • Adaptive beacon interval in WLAN
    Patent number: 7333460
    Abstract: The present invention relates to Wireless Local Area Networks and Access Points in such networks, in particular it relates to the control and use of varying beacon intervals in such networks. According to the present invention, the beacon frames in the Wireless Local Area Network are provided with an adaptive beacon interval. The interval is adapted in dependence on a current network load such that the length of the beacon interval is decreased when the network load is decreased and increased when network load is increased. The invention is applicable in existing as well as future IEEE 802.11 standards.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: February 19, 2008
    Assignee: Nokia Corporation
    Inventors: Ari Väisänen, Pekka Orava, Henry Haverinen
  • Adaptive beacon interval in WLAN
    Publication number: 20040192284
    Abstract: The present invention relates to Wireless Local Area Networks and Access Points in such networks, in particular it relates to the control and use of varying beacon intervals in such networks. According to the present invention, the beacon frames in the Wireless Local Area Network are provided with an adaptive beacon interval. The interval is adapted in dependence on a current network load such that the length of the beacon interval is decreased when the network load is decreased and increased when network load is increased. The invention is applicable in existing as well as future IEEE 802.11 standards.
    Type: Application
    Filed: March 25, 2003
    Publication date: September 30, 2004
    Inventors: Ari Vaisanen, Pekka Orava, Henry Haverinen
  • Spa water circulation system
    Publication number: 20040040908
    Abstract: The invention relates to a spa water circulation system and a method of circulating spa water. The water consumption at a spa as well as at a swimming hall consists of both pool water and grey water, which is mainly shower water. Both waters are purified. The present invention provides an economical solution for purifying both these waters by circulating the waters through two purification systems which are connected to each other and through which even the filter wash waters may be circulated.
    Type: Application
    Filed: June 11, 2003
    Publication date: March 4, 2004
    Inventors: Pekka Orava, Jussi Uotila, Gennadi Zaitsev