Patents by Inventor Joseph T. Livingston

Joseph T. Livingston 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).

  • Analog-to-digital converter with automatic range and sensitivity adjustment
    Patent number: 7413126
    Abstract: The invention is a system and method for providing optimized accuracy and precision in analog-to-digital conversions of data. In an embodiment of the invention, an A/D converter is configured by setting two separately definable reference voltages that are controlled by a microprocessor. The A/D converter range is as wide as, or slightly greater than, a dynamic range of the analog signal to be converted. The microprocessor adjusts at least one reference voltage. The A/D converter receives analog signals from a sensor. The dynamic range of the signal from the sensor, or the sensor operating conditions, are used to define the reference voltages. The converted data is provided to a data processor at a rate controlled by a clocking signal. In a method according to the invention, the A/D converter is operated using the features described above. The accuracy and the precision of the converted data are thereby optimized.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: August 19, 2008
    Assignee: Hand Held Products, Inc.
    Inventors: John A. Pettinelli, Jr., Matthew W. Pankow, Joseph T. Livingston, Edward C. Bremer, Timothy P. Meier
  • Analog-to-digital converter with automatic range and sensitivity adjustment
    Patent number: 7175092
    Abstract: The invention is a system and method for providing optimized accuracy and precision in analog-to-digital conversions of data. In an embodiment of the invention, an A/D converter is configured by setting two separately definable reference voltages that are controlled by a microprocessor. The A/D converter range is as wide as, or slightly greater than, a dynamic range of the analog signal to be converted. The microprocessor adjusts at least one reference voltage. The A/D converter receives analog signals from a sensor. The dynamic range of the signal from the sensor, or the sensor operating conditions, are used to define the reference voltages. The converted data is provided to a data processor at a rate controlled by a clocking signal. In a method according to the invention, the A/D converter is operated using the features described above. The accuracy and the precision of the converted data are thereby optimized.
    Type: Grant
    Filed: May 10, 2004
    Date of Patent: February 13, 2007
    Assignee: Hand Held Products, Inc.
    Inventors: John A. Pettinelli, Jr., Matthew W. Pankow, Joseph T. Livingston, Edward C. Bremer, Timothy P. Meier
  • ANALOG-TO-DIGITAL CONVERTER WITH AUTOMATIC RANGE AND SENSITIVITY ADJUSTMENT
    Publication number: 20040134988
    Abstract: The invention is a system and method for providing optimized accuracy and precision in analog-to-digital conversions of data. In an embodiment of the invention, an A/D converter is configured by setting two separately definable reference voltages that are controlled by a microprocessor. The A/D converter range is as wide as, or slightly greater than, a dynamic range of the analog signal to be converted. The microprocessor adjusts at least one reference voltage. The A/D converter receives analog signals from a sensor. The dynamic range of the signal from the sensor, or the sensor operating conditions, are used to define the reference voltages. The converted data is provided to a data processor at a rate controlled by a clocking signal. In a method according to the invention, the A/D converter is operated using the features described above. The accuracy and the precision of the converted data are thereby optimized.
    Type: Application
    Filed: January 9, 2003
    Publication date: July 15, 2004
    Applicant: Hand Held Products, Inc.
    Inventors: John A. Pettinelli, Matthew W. Pankow, Joseph T. Livingston, Edward C. Bremer, Timothy P. Meier