Patents by Inventor Johan Gunnar Lundström

Johan Gunnar Lundström 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).

  • Switching off DTX for music
    Patent number: 9263063
    Abstract: The invention relates to a method for disabling a discontinuous transmission node DTX of a speech encoder if a music signal is detected in a call input signal. The music signal is detected by determining an activity factor corresponding to the relation of sound signal periods relative to scheme signal periods. If the activity factor is higher than a specified activity factor, the DTX is disabled.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: February 16, 2016
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Timo Suihko, Johan Gunnar Lundström, Arto Mahkonen
  • Switching Off DTX for Music
    Publication number: 20130138433
    Abstract: The invention relates to a method for disabling a discontinuous transmission node DTX of a speech encoder if a music signal is detected in a call input signal. The music signal is detected by determining an activity factor corresponding to the relation of sound signal periods relative to scheme signal periods. If the activity factor is higher than a specified activity factor, the DTX is disabled.
    Type: Application
    Filed: February 25, 2010
    Publication date: May 30, 2013
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Timo Suihko, Johan Gunnar Lundström, Arto Mahkonen