Patents by Inventor Ralf-Rainer Schledz

Ralf-Rainer Schledz 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).

  • Publication number: 20130166166
    Abstract: Embodiments relate to tire localization in tire pressure monitoring systems (TPMS). In embodiments, a TPMS includes a wheel unit and a control unit. Each wheel unit collects acceleration data and transmits that data to the control unit for processing. The control unit processes the data and, using additional data received from another vehicle system, for example an antilock braking system (ABS) or electronic stability control (ESC) system, correlates the data in order to localize each wheel unit to a particular wheel of the vehicle. Advantages include increased processing power at the control unit as compared to the wheel unit.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 27, 2013
    Inventors: Christoph Steiner, Ralf-Rainer Schledz
  • Publication number: 20120119735
    Abstract: Embodiments relate to xMR sensors having very high shape anisotropy. Embodiments also relate to novel structuring processes of xMR stacks to achieve very high shape anisotropies without chemically affecting the performance relevant magnetic field sensitive layer system while also providing comparatively uniform structure widths over a wafer, down to about 100 nm in embodiments. Embodiments can also provide xMR stacks having side walls of the performance relevant free layer system that are smooth and/or of a defined lateral geometry which is important for achieving a homogeneous magnetic behavior over the wafer.
    Type: Application
    Filed: November 15, 2010
    Publication date: May 17, 2012
    Inventors: Juergen Zimmer, Klemens Pruegl, Olaf Kuehn, Andreas Strasser, Ralf-Rainer Schledz, Norbert Thyssen
  • Patent number: 7142059
    Abstract: The invention provides an amplifier arrangement which is of multistage design. The output transistor in the output stage has a coupling path between its control input and its controlled path. The coupling path comprises a series circuit comprising a Miller compensation capacitance and a resistance with a controllable resistance value. It is thus possible to ensure stable operation of the amplifier regardless of bias and load conditions while simultaneously reducing the quiescent current drawn.
    Type: Grant
    Filed: September 27, 2004
    Date of Patent: November 28, 2006
    Assignee: Infineon Technology AG
    Inventors: Axel Klein, Ralf-Rainer Schledz, Marcin Augustyniak
  • Patent number: 6995700
    Abstract: A digital/analog converter apparatus (DAC) comprises, for the purpose of converting a digital input signal (D) into an analog output signal (A), a first unit (F1, F2), two digital/analog converters (DAC1, DAC2) and a second unit (K1, K2), which are connected successively in the stated order. From the digital input signal (D), digital intermediate signals (D1, D2) which are within the analog output signal (A) is obtained through linear combination.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: February 7, 2006
    Assignee: Infineon Technologies AG
    Inventors: Frédéric Roger, Ralf-Rainer Schledz
  • Publication number: 20050104662
    Abstract: The invention provides an amplifier arrangement which is of multistage design. The output transistor in the output stage has a coupling path between its control input and its controlled path. The coupling path comprises a series circuit comprising a Miller compensation capacitance and a resistance with a controllable resistance value. It is thus possible to ensure stable operation of the amplifier regardless of bias and load conditions while simultaneously reducing the quiescent current drawn.
    Type: Application
    Filed: September 27, 2004
    Publication date: May 19, 2005
    Inventors: Axel Klein, Ralf-Rainer Schledz, Marcin Augustyniak
  • Publication number: 20050062629
    Abstract: A digital/analog converter apparatus (DAC) comprises, for the purpose of converting a digital input signal (D) into an analog output signal (A), a first unit (F1, F2), two digital/analog converters (DAC1, DAC2) and a second unit (K1, K2), which are connected successively in the stated order. From the digital input signal (D), digital intermediate signals (D1, D2) which are within the analog output signal (A) is obtained through linear combination.
    Type: Application
    Filed: July 18, 2002
    Publication date: March 24, 2005
    Inventors: Frederic Roger, Ralf-Rainer Schledz
  • Patent number: 6812877
    Abstract: An apparatus converts a digital value including “a” bits into an analog signal and has 2b D/A converters. Here, b is an integer number that is greater than 0. Each of the D/A converters is designed to convert a digital value having “a−b” bits. The digital value that is supplied (for i=1 . . . 2b) to the ith D/A converter for the purpose of D/A conversion corresponds to the “a−b” most significant bits in the sum of the digital value that will be converted by the apparatus and to i−1. The output signal for the apparatus is the mean value for the output signals from the D/A converters. Such an apparatus can be produced such that it can be accommodated easily and efficiently on a semiconductor chip and, irrespective of the details of protocol implementation, permits a completely linear conversion of the digital value being converted into an analog signal.
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: November 2, 2004
    Assignee: Infineon Technologies AG
    Inventors: Marco Bachhuber, Ralf-Rainer Schledz
  • Publication number: 20030218555
    Abstract: An apparatus converts a digital value including “a” bits into an analog signal and has 2b D/A converters. Here, b is an integer number that is greater than 0. Each of the D/A converters is designed to convert a digital value having “a-b” bits. The digital value that is supplied (for i=1 . . . 2b) to the ith D/A converter for the purpose of D/A conversion corresponds to the “a-b” most significant bits in the sum of the digital value that will be converted by the apparatus and to i−1. The output signal for the apparatus is the mean value for the output signals from the D/A converters. Such an apparatus can be produced such that it can be accommodated easily and efficiently on a semiconductor chip and, irrespective of the details of protocol implementation, permits a completely linear conversion of the digital value being converted into an analog signal.
    Type: Application
    Filed: April 9, 2003
    Publication date: November 27, 2003
    Inventors: Marco Bachhuber, Ralf-Rainer Schledz