Patents Represented by Attorney, Agent or Law Firm J. Matthew Zignant
  • Patent number: 6836228
    Abstract: Methods and apparatus for converting analog signals to digital signals using a switched integrator. A method includes receiving the analog signal at a summing junction, receiving a clock signal transitioning between a first level and a second level, connecting an output of the summing junction to an integrator when the clock signal is at the first level, and disconnecting the output of the summing junction from the integrator when the clock signal is at the second level. An output signal is provided, and is determined by the polarity of an output of the integrator when the clock signal transitions from the first level to the second level. The output signal is delayed, and received with a digital-to-analog converter; which provides an output to the summing junction.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: December 28, 2004
    Assignee: Xicor, Inc.
    Inventors: Roger Levinson, Phillip J. Benzel