Patents by Inventor Bernhard Heigelmayer

Bernhard Heigelmayer 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).

  • Auto-averaging RC time constant calibration
    Patent number: 7911181
    Abstract: This disclosure relates to auto-averaging RC time constant calibration are described. An auto-averaging calibration circuit includes two capacitor branches, where capacitors in the capacitor branches, charge and discharge alternately to accommodate multiple charging cycles in one measurement cycle for measuring a RC time constant. A value of RC time constant is obtained in each charging cycle. A final value of the RC time constant can be determined by averaging various values of the time constants obtained during each charging cycle.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: March 22, 2011
    Assignee: Infineon Technologies AG
    Inventors: Alfred Raidl, Josef Hoeftberger, Bernhard Heigelmayer
  • Auto-Averaging RC Time Constant Calibration
    Publication number: 20090140701
    Abstract: This disclosure relates to auto-averaging RC time constant calibration are described. An auto-averaging calibration circuit includes two capacitor branches, where capacitors in the capacitor branches, charge and discharge alternately to accommodate multiple charging cycles in one measurement cycle for measuring a RC time constant. A value of RC time constant is obtained in each charging cycle. A final value of the RC time constant can be determined by averaging various values of the time constants obtained during each charging cycle.
    Type: Application
    Filed: December 3, 2007
    Publication date: June 4, 2009
    Applicant: Infineon Technologies AG
    Inventors: Alfred Raidl, Josef Hoeftberger, Bernhard Heigelmayer
  • Amplifying circuit with adjustable amplification and transmitter system comprising such an amplifying circuit
    Patent number: 7109796
    Abstract: The invention is directed to an amplifier circuit with adjustable gain which includes a plurality of parallel-connected differential amplifiers connected to a common cascode stage. An actuation unit is used to activate the differential amplifiers independently of one another on the basis of an applied control signal. The principle described makes it possible to dispense with inductances in the differential amplifier and hence to reduce unwanted crosstalk, while having a high linearity. Secondly, the amplifier's drawn current matches the respective output power which can be tapped off. Overall, the principle described is particularly suitable for use in UMTS mobile radios.
    Type: Grant
    Filed: January 10, 2005
    Date of Patent: September 19, 2006
    Assignee: Infineon Technologies AG
    Inventors: Bernhard Heigelmayer, Harald Pretl
  • Amplifying circuit with adjustable amplification and transmitter system comprising such an amplifying circuit
    Publication number: 20050174175
    Abstract: The invention is directed to an amplifier circuit with adjustable gain which includes a plurality of parallel-connected differential amplifiers connected to a common cascode stage. An actuation unit is used to activate the differential amplifiers independently of one another on the basis of an applied control signal. The principle described makes it possible to dispense with inductances in the differential amplifier and hence to reduce unwanted crosstalk, while having a high linearity. Secondly, the amplifier's drawn current matches the respective output power which can be tapped off. Overall, the principle described is particularly suitable for use in UMTS mobile radios.
    Type: Application
    Filed: January 10, 2005
    Publication date: August 11, 2005
    Inventors: Bernhard Heigelmayer, Harald Pretl