Patents by Inventor Hans Ahlbäck

Hans Ahlbäck 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: 11139957
    Abstract: An apparatus and method for creating a finite blockchain is provided. The blockchain comprises a genesis block that is the first block of the blockchain. The genesis block comprising a genesis expiry time. The method comprises the steps of creating a reincarnation block when a predefined condition is satisfied and appending it to the blockchain; determining whether the genesis expiry time has elapsed based on an expiry period; if the genesis expiry time has elapsed then identifying a first reincarnation block; if the first reincarnation block is identified then deleting all the blocks preceding the first reincarnation block including the genesis block in the block chain.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: October 5, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Hans Ahlbäck, Harri Hakala, Mikael Jaatinen, Leena Marjatta Mattila
  • Publication number: 20200076576
    Abstract: An apparatus and method for creating a finite blockchain is provided. The blockchain comprises a genesis block that is the first block of the blockchain. The genesis block comprising a genesis expiry time. The method comprises the steps of creating a reincarnation block when a predefined condition is satisfied and appending it to the blockchain; determining whether the genesis expiry time has elapsed based on an expiry period; if the genesis expiry time has elapsed then identifying a first reincarnation block; if the first reincarnation block is identified then deleting all the blocks preceding the first reincarnation block including the genesis block in the block chain.
    Type: Application
    Filed: December 8, 2016
    Publication date: March 5, 2020
    Inventors: Hans AHLBÄCK, Harri HAKALA, Mikael JAATINEN, Leena Marjatta MATTILA
  • Patent number: 8879525
    Abstract: A method and a wireless transmit/receive unit (WTRU) (600), including a universal subscriber identity module USIM (625), for identifying a closed subscriber group (CSG) cell are disclosed. The WTRU (600) receives a broadcast from a cell including a cell identifier (ID). If the cell ID is associated with a CSG cell, the WTRU (600) determines whether the CSG ID is programmed in the USIM (625). The cell broadcast may include a single bit information element (IE) indicating that the cell is a CSG cell. If the cell ID is a CSG ID, the cell ID may further include a plurality of fields which indicate at least one of a country, a region, an operator, and a home evolved Node-B (HeNB) number. The cell broadcast may further include a bit indicating whether the CSG cell is public or private. The cell broadcast may further include a bit indicating that emergency calls are allowed from all users.
    Type: Grant
    Filed: January 13, 2009
    Date of Patent: November 4, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Hans Ahlbäck, Harri Hakala
  • Publication number: 20110243114
    Abstract: A method and a wireless transmit/receive unit (WTRU) (600), including a universal subscriber identity module for identifying a closed subscriber group (CSG) cell are disclosed. The WTRU (600) receives a broadcast from a cell including a cell identifier (ID). If the cell ID is associated with a CSG cell, the WTRU (600) determines whether the CSG ID is programmed in the USIM (625). The cell broadcast may include a single bit information element (IE) indicating that the cell is a CSG cell. If the cell ID is a CSG ID, the cell ID may further include a plurality of fields which indicate at least one of a country, a region, an operator, and a home evolved Node-B (HeNB) number. The cell broadcast may further include a bit indicating whether the CSG cell is public or private. The cell broadcast may further include a bit indicating that emergency calls are allowed from all users.
    Type: Application
    Filed: January 13, 2009
    Publication date: October 6, 2011
    Inventors: Hans Ahlbäck, Harri Hakala