Patents by Inventor James Carroll Camp

James Carroll Camp 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).

  • Pipelined converter systems with enhanced linearity
    Patent number: 7719452
    Abstract: Signal converter system embodiments are provided to substantially reduce symmetrical and asymmetrical conversion errors. Signal-processing stages of these embodiments may include a signal sampler in addition to successively-arranged signal converters. In system embodiments, injected analog dither signals are initiated in response to a random digital code. They combine with a system's analog input signal and the combined signal is processed down randomly-selected signal-processing paths of the converter system to thereby realize significant improvements in system linearity. Because these linearity improvements are realized by simultaneous processing of the input signal and the injected dither signal, a combined digital code is realized at the system's output. A first portion of this combined digital code corresponds to the analog input signal and a second portion corresponds to the injected analog dither signal.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: May 18, 2010
    Assignee: Analog Devices, Inc.
    Inventors: Scott Gregory Bardsley, Bryan Scott Puckett, Michael Ray Elliott, Ravi Kishore Kummaraguntla, Ahmed Mohamed Abdelatty Ali, Carroll Clifton Speir, James Carroll Camp
  • Pipelined converter systems with enhanced linearity
    Publication number: 20100073210
    Abstract: Signal converter system embodiments are provided to substantially reduce symmetrical and asymmetrical conversion errors. Signal-processing stages of these embodiments may include a signal sampler in addition to successively-arranged signal converters. In system embodiments, injected analog dither signals are initiated in response to a random digital code. They combine with a system's analog input signal and the combined signal is processed down randomly-selected signal-processing paths of the converter system to thereby realize significant improvements in system linearity. Because these linearity improvements are realized by simultaneous processing of the input signal and the injected dither signal, a combined digital code is realized at the system's output. A first portion of this combined digital code corresponds to the analog input signal and a second portion corresponds to the injected analog dither signal.
    Type: Application
    Filed: September 23, 2008
    Publication date: March 25, 2010
    Inventors: Scott Gregory Bardsley, Bryan Scott Puckett, Michael Ray Elliott, Ravi Kishore Kummaraguntla, Ahmed Mohamed Abdelatty Ali, Carroll Clifton Speir, James Carroll Camp