Patents by Inventor Anthony Evan O'Shaughnessy

Anthony Evan O'Shaughnessy 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).

  • Resynchronization of sample rate converters
    Patent number: 10097200
    Abstract: A device having a sample-rate converter that may be programmed to generate samples at different rates is synchronized to an external synchronization pulse by temporarily changing the sample rate to a temporary sample rate and then changing the sample rate back to the original sample rate. Synchronization in a reduced amount of time is achieved by determining the interval between the synchronization pulse and one of the output samples and determining a processing time of the device for generating the output samples at a new rate. The system calculates a temporary sample rate based on these calculations that tends to reduce an amount of time to achieve synchronization.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: October 9, 2018
    Assignee: Analog Devices Global
    Inventors: Miguel Usach Merino, Michael Hennessy, Anthony Evan O'Shaughnessy, Claire Croke
  • Sample rate converter, an analog to digital converter including a sample rate converter and a method of converting a data stream from one data rate to another data rate
    Patent number: 9432043
    Abstract: It is known to perform sample rate conversion. A sample rate converter is arranged to receive digital data at an input sample rate Fs and to output data at an output sample rate Fo, where Fo=Fs/N, and N is decimation factor greater than 1. A problem can arise with sample rate converters when a user wishes to change the decimation rate. Generally a sample rate converter needs to discard the samples in its filter when the decimation rate is changed, and the filter output is unusable until the filter has refilled with values taken at the new decimation rate. The sample rate converter provided here does not suffer from this problem. The sample rate converter includes at least Q channels.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: August 30, 2016
    Assignee: Analog Devices Global
    Inventors: Anthony Evan O'Shaughnessy, Colin Lyden, Joseph Peter Canning
  • SAMPLE RATE CONVERTER, AN ANALOG TO DIGITAL CONVERTER INCLUDING A SAMPLE RATE CONVERTER AND A METHOD OF CONVERTING A DATA STREAM FROM ONE DATA RATE TO ANOTHER DATA RATE
    Publication number: 20160094240
    Abstract: It is known to perform sample rate conversion. A sample rate converter is arranged to receive digital data at an input sample rate Fs and to output data at an output sample rate Fo, where Fo=Fs/N, and N is decimation factor greater than 1. A problem can arise with sample rate converters when a user wishes to change the decimation rate. Generally a sample rate converter needs to discard the samples in its filter when the decimation rate is changed, and the filter output is unusable until the filter has refilled with values taken at the new decimation rate. The sample rate converter provided here does not suffer from this problem. The sample rate converter includes at least Q channels.
    Type: Application
    Filed: September 25, 2014
    Publication date: March 31, 2016
    Applicant: Analog Devices Technology
    Inventors: Anthony Evan O'Shaughnessy, Colin Lyden, Joseph Peter Canning