Patents by Inventor Wolgang Mader

Wolgang Mader 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).

  • Optical amplifier with automatic level control and automatic gain control
    Patent number: 6452722
    Abstract: Regulated optical amplifiers for wavelength-division multiplex signal transmission that include a first control device for regulating the gain and a second, dominating control device having a significantly slower control behavior for regulating the output power level in conformity with a supplied rated power value. Both rapid level changes as well as slow changes in attenuation of the transmission path can be leveled with a transmission path utilizing these amplifiers.
    Type: Grant
    Filed: April 25, 2000
    Date of Patent: September 17, 2002
    Assignee: Siemens Aktiengesellschaft
    Inventors: Peter Krummrich, Claus-Jörg Weiske, Martin Schreiblehner, Wolgang Mader
  • Optical amplifier and optical transmission path
    Publication number: 20020015221
    Abstract: The regulated optical amplifiers (V) for wavelength-division multiplex signal transmission respectively comprise a first control device (OE1, OE2, R1) for regulating the gain and a second, dominating control device (OE2, R2, R1) having a significantly slower control behavior for regulating the output level (POUT) in conformity with a supplied rated value (POUT). Both rapid level changes as well as slow changes in attenuation of the transmission path can be leveled given a transmission path equipped with these amplifiers.
    Type: Application
    Filed: September 19, 2001
    Publication date: February 7, 2002
    Inventors: Peter Krummrich, Claus-Jorg Weiske, Martin Schreiblehner, Wolgang Mader