Patents by Inventor Olaf Wittur

Olaf Wittur 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).

  • Circuit for producing an alternating voltage
    Patent number: 4799138
    Abstract: A circuit is described for producing an alternating voltage in an electronic device which is remotely fed over a digital transmission path. By the pulses of a clock (8) two capacitors, C1, C2 are charged via a transistor (T1) and a transformer (10), one of them (C2) being discharged over a parallel resistor (R2). A coupling capacitor (CK) which is charged by the other capacitor (C1) is discharged alternately by the influence of the dischargeable capacitor (C2) over a transistor (T2).
    Type: Grant
    Filed: September 17, 1987
    Date of Patent: January 17, 1989
    Assignee: kabelmetal electro Gesellschaft mit beschrankter Haftung
    Inventors: Ziaedin Chahabadi, Martin Brahms, Olaf Wittur