Patents by Inventor Ulrich Huewels

Ulrich Huewels 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).

  • Data transmission device
    Patent number: 7860155
    Abstract: A data transmission device for transmitting data between a subscriber line and a local line-connected data transmission network is described.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: December 28, 2010
    Assignee: Lantiq Deutschland GmbH
    Inventors: Rudi Frenzel, Friedrich Geissler, Ulrich Huewels
  • Data transmission device
    Publication number: 20080008232
    Abstract: A data transmission device for transmitting data between a subscriber line and a local line-connected data transmission network is described.
    Type: Application
    Filed: April 12, 2007
    Publication date: January 10, 2008
    Inventors: Rudi Frenzel, Friedrich Geissler, Ulrich Huewels
  • Efficient analog front end for a read/write channel of a hard disk drive running from a highly regulated power supply
    Patent number: 6661590
    Abstract: A method and apparatus for running an analog portion (162) of a read/write channel (108) from a highly regulated power supply (260). The apparatus includes an analog portion (162), a clock synthesizer (154), and a highly regulated power supply (260) connected to the analog portion (162) and the clock synthesizer (154). The analog portion (162) and the clock synthesizer (154) both comprise high voltage transistors which operate in a first voltage range and low voltage transistors which operate in a second voltage range, wherein the first voltage range is within the second voltage range. The highly regulated power supply (260) supplies power that is within the first voltage range to the analog portion (162) and the clock synthesizer (154). The method includes generating power that is within the first voltage range using the highly regulated power supply (260), and supplying the power to the analog portion (162) and the clock synthesizer (154).
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: December 9, 2003
    Assignee: Infineon Technologies AG
    Inventors: Sasan Cyrusian, Stephen J. Franck, Sriharsha Annadore, Elmar Bach, Siegfried Hart, Thomas Blon, William G. Bliss, James Wilson Rae, Michael Ruegg, Ulrich Huewels, Fritz Mistlberger
  • Write precompensation circuit and read channel with write precompensation circuit that generates output signals by interpolating between selected phases
    Patent number: 6662303
    Abstract: An improved write precompensation circuit. Eight phases from a PLL phase oscillator are received as inputs into a bank of four phase blenders (104). The phase blenders (104) output a 0%, 25%, 50%, or 75% interpolation to the adjacent phases. A multiplexer (110) is then used to select which of the phase outputs is used for the write precompensation.
    Type: Grant
    Filed: January 10, 2000
    Date of Patent: December 9, 2003
    Assignee: Infineon Technologies North America Corp.
    Inventors: Zabih Toosky, Sasan Cyrusian, Ulrich Huewels
  • Efficient analog front end for a read/write channel of a hard disk drive running from a highly regulated power supply
    Publication number: 20020176186
    Abstract: A method and apparatus for running an analog portion (162) of a read/write channel (108) from a highly regulated power supply (260). The apparatus includes an analog portion (162), a clock synthesizer (154), and a highly regulated power supply (260) connected to the analog portion (162) and the clock synthesizer (154). The analog portion (162) and the clock synthesizer (154) both comprise high voltage transistors which operate in a first voltage range and low voltage transistors which operate in a second voltage range, wherein the first voltage range is within the second voltage range. The highly regulated power supply (260) supplies power that is within the first voltage range to the analog portion (162) and the clock synthesizer (154). The method includes generating power that is within the first voltage range using the highly regulated power supply (260), and supplying the power to the analog portion (162) and the clock synthesizer (154).
    Type: Application
    Filed: May 25, 2001
    Publication date: November 28, 2002
    Inventors: Sasan Cyrusian, Stephen J. Franck, Sriharsha Annadore, Elmar Bach, Siegfried Hart, Thomas Blon, William G. Bliss, James Wilson Rae, Michael Ruegg, Ulrich Huewels, Fritz Mistlberger