Patents by Inventor Sven-?ke Eriksson

Sven-?ke Eriksson 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).

  • Method and arrangement for driving a microphone
    Patent number: 9257944
    Abstract: Disclosed is a differential microphone pre-amplifier circuit (120) for providing an amplified differential signal at a first (A) and a second (B) output terminal of the microphone pre-amplifier (120), including a first voltage controlled current generator (101), a second voltage controlled current generator (102) and a third voltage controlled current generator (103) all being configured to receive, amplify and convert a voltage signal generated by an associated microphone (110) to a current signal output.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: February 9, 2016
    Assignee: Research Electronics Leksand AB
    Inventor: Sven-Åke Eriksson