Patents by Inventor Naveen Viswanath

Naveen Viswanath 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).

  • Sensor resonant frequency identification and filter tuning
    Patent number: 8184389
    Abstract: Methods of tuning a notch filter to remove resonant frequency components from an output signal of a vibration sensor. Some methods according to the invention include exciting the vibration sensor with an excitation signal including energy in a frequency band that may include a resonant frequency of the vibration sensor, measuring the output signal of the vibration sensor in response to the excitation signal, detecting a frequency component of the output signal that corresponds to the resonant frequency of the vibration sensor, and configuring the notch filter to attenuate the detected frequency component. Related disk drives are also disclosed.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: May 22, 2012
    Assignee: Seagate Technology LLC
    Inventors: David Finamore, Michael Dickeson, Naveen Viswanath
  • Sensor Resonant Frequency Identification and Filter Tuning
    Publication number: 20070241711
    Abstract: Methods of tuning a notch filter to remove resonant frequency components from an output signal of a vibration sensor. Some methods according to the invention include exciting the vibration sensor with an excitation signal including energy in a frequency band that may include a resonant frequency of the vibration sensor, measuring the output signal of the vibration sensor in response to the excitation signal, detecting a frequency component of the output signal that corresponds to the resonant frequency of the vibration sensor, and configuring the notch filter to attenuate the detected frequency component.
    Type: Application
    Filed: March 14, 2007
    Publication date: October 18, 2007
    Inventors: David Finamore, Michael Dickeson, Naveen Viswanath