Patents Assigned to 3 M SVENSKA AB
  • A METHOD AND AN APPARATUS FOR DAMPING A SONIC SIGNAL
    Publication number: 20100128903
    Abstract: A method for limiting the sound volume in an earphone, a headset (8), or the like, to a maximum permitted level, entails that an input signal (2) is sensed by a processor (4) and damped by a damper (6) if it is excessively high. Thereafter, the signal (7) is transmitted to the earphone, the headset (8), or the like. The processor (4) switches between an active mode and a rest mode. An apparatus for limiting the sound volume according to the method includes a microprocessor (4) and a damper (6).
    Type: Application
    Filed: April 10, 2008
    Publication date: May 27, 2010
    Applicant: 3 M SVENSKA AB
    Inventors: Roger Kihlberg, Oscar Kårekull