Patents by Inventor Martin Isken

Martin Isken 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).

  • Amplifier circuit with offset compensation, in particular for digital modulation devices
    Patent number: 6710645
    Abstract: An offset voltage at an output of a differential amplifier is compensated for by a control circuit having a digital setting device. The control circuit has a control device which is controlled by an offset voltage of the differential amplifier and which feeds an offset compensation signal into the differential amplifier. Compared with analog compensation with an external storage capacitor, temporal drift effects do not distort the offset compensation on the differential amplifier. The described principle can be applied, for example, in radio frequency receiver circuits.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: March 23, 2004
    Assignee: Infineon Technologies AG
    Inventors: Martin Isken, Josef Schmal, Bernd Memmler, Günther Tränkle
  • Amplifier circuit with offset compensation, in particular for digital modulation devices
    Publication number: 20010048344
    Abstract: An offset voltage at an output of a differential amplifier is compensated for by a control circuit having a digital setting device. The control circuit has a control device which is controlled by an offset voltage of the differential amplifier and which feeds an offset compensation signal into the differential amplifier. Compared with analog compensation with an external storage capacitor, temporal drift effects do not distort the offset compensation on the differential 10 amplifier. The described principle can be applied, for example, in radio frequency receiver circuits.
    Type: Application
    Filed: May 11, 2001
    Publication date: December 6, 2001
    Inventors: Martin Isken, Josef Schmal, Bernd Memmler, Gunther Trankle