Patents by Inventor Nikos P. Pitsianis

Nikos P. Pitsianis 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).

  • Patent number: 9442872
    Abstract: Techniques for providing improved data distribution to and collection from multiple memories are described. Such memories are often associated with and local to processing elements (PEs) within an array processor. Improved data transfer control within a data processing system provides support for radix 2, 4 and 8 fast Fourier transform (FFT) algorithms through data reordering or bit-reversed addressing across multiple PEs, carried out concurrently with FFT computation on a digital signal processor (DSP) array by a DMA unit. Parallel data distribution and collection through forms of multicast and packet-gather operations are also supported.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: September 13, 2016
    Assignee: Altera Corporation
    Inventors: Edwin Franklin Barry, Nikos P. Pitsianis, Kevin Coopman
  • Patent number: 9015354
    Abstract: Efficient computation of complex multiplication results and very efficient fast Fourier transforms (FFTs) are provided. A parallel array VLIW digital signal processor is employed along with specialized complex multiplication instructions and communication operations between the processing elements which are overlapped with computation to provide very high performance operation. Successive iterations of a loop of tightly packed VLIWs are used allowing the complex multiplication pipeline hardware to be efficiently used. In addition, efficient techniques for supporting combined multiply accumulate operations are described.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: April 21, 2015
    Assignee: Altera Corporation
    Inventors: Nikos P. Pitsianis, Gerald George Pechanek, Ricardo Rodriguez
  • Patent number: 9009365
    Abstract: Details of a highly cost effective and efficient implementation of a manifold array (ManArray) architecture and instruction syntax for use therewith are described herein. Various aspects of this approach include the regularity of the syntax, the relative ease with which the instruction set can be represented in database form, the ready ability with which tools can be created, the ready generation of self-checking codes and parameterized test cases. Parameterizations can be fairly easily mapped and system maintenance is significantly simplified.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: April 14, 2015
    Assignee: Altera Corporation
    Inventors: Gerald George Pechanek, David Strube, Edwin Franklin Barry, Charles W. Kurak, Jr., Carl Donald Busboom, Dale Edward Schneider, Nikos P. Pitsianis, Grayson Morris, Edward A. Wolff, Patrick R. Marchand, Ricardo Rodriguez, Marco Jacobs
  • Publication number: 20150039856
    Abstract: Efficient computation of complex multiplication results and very efficient fast Fourier transforms (FFTs) are provided. A parallel array VLIW digital signal processor is employed along with specialized complex multiplication instructions and communication operations between the processing elements which are overlapped with computation to provide very high performance operation. Successive iterations of a loop of tightly packed VLIWs are used allowing the complex multiplication pipeline hardware to be efficiently used. In addition, efficient techniques for supporting combined multiply accumulate operations are described.
    Type: Application
    Filed: August 11, 2014
    Publication date: February 5, 2015
    Applicant: Altera Corporation
    Inventors: Nikos P. Pitsianis, Gerald George Pechanek, Ricardo Rodriguez
  • Patent number: 8904152
    Abstract: Efficient computation of complex multiplication results and very efficient fast Fourier transforms (FFTs) are provided. A parallel array VLIW digital signal processor is employed along with specialized complex multiplication instructions and communication operations between the processing elements which are overlapped with computation to provide very high performance operation. Successive iterations of a loop of tightly packed VLIWs are used allowing the complex multiplication pipeline hardware to be efficiently used. In addition, efficient techniques for supporting combined multiply accumulate operations are described.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: December 2, 2014
    Assignee: Altera Corporation
    Inventors: Nikos P. Pitsianis, Gerald George Pechanek, Ricardo Rodriguez
  • Patent number: 8724006
    Abstract: An imaging system includes an array of lenses, a plurality of sensor pixels for each lens, the sensor pixels being on an image plane of the imaging system, and a corresponding plurality of focal plane coding elements. A focal plane coding element for each sensor pixel has multiple sub-pixel resolution elements. The focal plane coding element being between the lens and each sensor pixel, wherein sub-pixel resolution elements over the plurality of focal plane coding elements represent a selected transform matrix having a non-zero determinant. The output of the plurality of sensor pixels being an image multiplied by this matrix.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: May 13, 2014
    Assignees: FLIR Systems, Inc., Duke University
    Inventors: David Brady, Michael D Feldman, Nikos P. Pitsianis
  • Publication number: 20140075081
    Abstract: Techniques for providing improved data distribution to and collection from multiple memories are described. Such memories are often associated with and local to processing elements (PEs) within an array processor. Improved data transfer control within a data processing system provides support for radix 2, 4 and 8 fast Fourier transform (FFT) algorithms through data reordering or bit-reversed addressing across multiple PEs, carried out concurrently with FFT computation on a digital signal processor (DSP) array by a DMA unit. Parallel data distribution and collection through forms of multicast and packet-gather operations are also supported.
    Type: Application
    Filed: November 4, 2013
    Publication date: March 13, 2014
    Applicant: Altera Corporation
    Inventors: Edwin F. Barry, Nikos P. Pitsianis, Kevin Coopman
  • Publication number: 20140059324
    Abstract: Details of a highly cost effective and efficient implementation of a manifold array (ManArray) architecture and instruction syntax for use therewith are described herein. Various aspects of this approach include the regularity of the syntax, the relative ease with which the instruction set can be represented in database form, the ready ability with which tools can be created, the ready generation of self-checking codes and parameterized test cases. Parameterizations can be fairly easily mapped and system maintenance is significantly simplified.
    Type: Application
    Filed: February 20, 2013
    Publication date: February 27, 2014
    Inventors: Gerald George Pechanek, David Strube, Edwin Franklin Barry, Charles W. Kurak, JR., Carl Donald Busboom, Dale Edward Schneider, Nikos P. Pitsianis, Grayson Morris, Edward A. Wolff, Patrick R. Marchand, Ricardo Rodriguez, Marco Jacobs
  • Patent number: 8601176
    Abstract: Techniques for providing improved data distribution to and collection from multiple memories are described. Such memories are often associated with and local to processing elements (PEs) within an array processor. Improved data transfer control within a data processing system provides support for radix 2, 4 and 8 fast Fourier transform (FFT) algorithms through data reordering or bit-reversed addressing across multiple PEs, carried out concurrently with FFT computation on a digital signal processor (DSP) array by a DMA unit. Parallel data distribution and collection through forms of multicast and packet-gather operations are also supported.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: December 3, 2013
    Assignee: Altera Corporation
    Inventors: Edwin Franklin Barry, Nikos P. Pitsianis, Kevin Coopman
  • Patent number: 8397000
    Abstract: Details of a highly cost effective and efficient implementation of a manifold array (ManArray) architecture and instruction syntax for use therewith are described herein. Various aspects of this approach include the regularity of the syntax, the relative ease with which the instruction set can be represented in database form, the ready ability with which tools can be created, the ready generation of self-checking codes and parameterized test cases. Parameterizations can be fairly easily mapped and system maintenance is significantly simplified.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: March 12, 2013
    Assignee: Altera Corporation
    Inventors: Gerald George Pechanek, David Strube, Edwin Franklin Barry, Charles W. Kurak, Jr., Carl Donald Busboom, Dale Edward Schneider, Nikos P. Pitsianis, Grayson Morris, Edward A. Wolff, Patrick R. Marchand, Ricardo E. Rodriguez, Marco C. Jacobs
  • Publication number: 20130007331
    Abstract: Details of a highly cost effective and efficient implementation of a manifold array (ManArray) architecture and instruction syntax for use therewith are described herein. Various aspects of this approach include the regularity of the syntax, the relative ease with which the instruction set can be represented in database form, the ready ability with which tools can be created, the ready generation of self-checking codes and parameterized test cases. Parameterizations can be fairly easily mapped and system maintenance is significantly simplified.
    Type: Application
    Filed: September 12, 2012
    Publication date: January 3, 2013
    Applicant: ALTERA CORPORATION
    Inventors: Gerald G. Pechanek, David Carl Strube, Edwin Frank Barry, Charles W. Kurak, JR., Carl Donald Busboom, Dale Edward Schneider, Nikos P. Pitsianis, Grayson Morris, Edward A. Wolff, Patrick R. Marchand, Ricardo E. Rodriguez, Marco C. Jacobs
  • Publication number: 20120331185
    Abstract: Techniques for providing improved data distribution to and collection from multiple memories are described. Such memories are often associated with and local to processing elements (PEs) within an array processor. Improved data transfer control within a data processing system provides support for radix 2, 4 and 8 fast Fourier transform (FFT) algorithms through data reordering or bit-reversed addressing across multiple PEs, carried out concurrently with FFT computation on a digital signal processor (DSP) array by a DMA unit. Parallel data distribution and collection through forms of multicast and packet-gather operations are also supported.
    Type: Application
    Filed: July 10, 2012
    Publication date: December 27, 2012
    Applicant: ALTERA CORPORATION
    Inventors: Edwin F. Barry, Nikos P. Pitsianis, Kevin Coopman
  • Patent number: 8296479
    Abstract: Details of a highly cost effective and efficient implementation of a manifold array (ManArray) architecture and instruction syntax for use therewith are described herein. Various aspects of this approach include the regularity of the syntax, the relative ease with which the instruction set can be represented in database form, the ready ability with which tools can be created, the ready generation of self-checking codes and parameterized test cases. Parameterizations can be fairly easily mapped and system maintenance is significantly simplified.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: October 23, 2012
    Assignee: Altera Corporation
    Inventors: Gerald George Pechanek, David Strube, Edwin Franklin Barry, Charles W. Kurak, Jr., Carl Donald Busboom, Dale Edward Schneider, Nikos P. Pitsianis, Grayson Morris, Edward A. Wolff, Patrick R. Marchand, Ricardo E. Rodriguez, Marco C. Jacobs
  • Patent number: 8244931
    Abstract: Techniques for providing improved data distribution to and collection from multiple memories are described. Such memories are often associated with and local to processing elements (PEs) within an array processor. Improved data transfer control within a data processing system provides support for radix 2, 4 and 8 fast Fourier transform (FFT) algorithms through data reordering or bit-reversed addressing across multiple PEs, carried out concurrently with FFT computation on a digital signal processor (DSP) array by a DMA unit. Parallel data distribution and collection through forms of multicast and packet-gather operations are also supported.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: August 14, 2012
    Assignee: Altera Corporation
    Inventors: Edwin Franklin Barry, Nikos P. Pitsianis, Kevin Coopman
  • Patent number: 8195732
    Abstract: Techniques for single function stage Galois field (GF) computations are described. Such a single function stage GF multiplication technique may utilize only m-bits per internal logic stage, a savings of m?1 bits per logic stage that do not have to be accounted for as compared with a previous two function stage approach. Also, a common design GF multiplication cell is described that may be suitably used to construct an m-by-m GF multiplication array for the calculation of GF[2m]/g[x]. In addition, these techniques are further described in the context of packed data form computation, very long instruction word (VLIW) processing, and processing on multiple processing elements in parallel.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: June 5, 2012
    Assignee: Altera Corporation
    Inventors: Nikos P. Pitsianis, Gerald George Pechanek
  • Publication number: 20120124335
    Abstract: Details of a highly cost effective and efficient implementation of a manifold array (ManArray) architecture and instruction syntax for use therewith are described herein. Various aspects of this approach include the regularity of the syntax, the relative ease with which the instruction set can be represented in database form, the ready ability with which tools can be created, the ready generation of self-checking codes and parameterized test cases. Parameterizations can be fairly easily mapped and system maintenance is significantly simplified.
    Type: Application
    Filed: January 5, 2012
    Publication date: May 17, 2012
    Applicant: ALTERA CORPORATION
    Inventors: Gerald G. Pechanek, David Carl Strube, Edwin Franklin Barry, Charles W. Kurak, JR., Carl Donald Busboom, Dale Edward Schneider, Nikos P. Pitsianis, Grayson Morris, Edward A. Wolff, Patrick R. Marchand, Ricardo E. Rodriguez, Marco C. Jacobs
  • Patent number: 8117357
    Abstract: Details of a highly cost effective and efficient implementation of a manifold array (ManArray) architecture and instruction syntax for use therewith are described herein. Various aspects of this approach include the regularity of the syntax, the relative ease with which the instruction set can be represented in database form, the ready ability with which tools can be created, the ready generation of self-checking codes and parameterized test cases. Parameterizations can be fairly easily mapped and system maintenance is significantly simplified.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: February 14, 2012
    Assignee: Altera Corporation
    Inventors: Gerald George Pechanek, David Carl Strube, Edwin Frank Barry, Charles W. Kurak, Jr., Carl Donald Busboom, Dale Edward Schneider, Nikos P. Pitsianis, Grayson Morris, Edward A. Wolff, Patrick R. Marchand, Ricardo E. Rodriguez, Marco C. Jacobs
  • Patent number: 8082372
    Abstract: Techniques for providing improved data distribution to and collection from multiple memories are described. Such memories are often associated with and local to processing elements (PEs) within an array processor. Improved data transfer control within a data processing system provides support for radix 2, 4 and 8 fast Fourier transform (FFT) algorithms through data reordering or bit-reversed addressing across multiple PEs, carried out concurrently with FFT computation on a digital signal processor (DSP) array by a DMA unit. Parallel data distribution and collection through forms of multicast and packet-gather operations are also supported.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: December 20, 2011
    Assignee: Altera Corporation
    Inventors: Edwin Franklin Barry, Nikos P. Pitsianis, Kevin Coopman
  • Publication number: 20110302333
    Abstract: Techniques for providing improved data distribution to and collection from multiple memories are described. Such memories are often associated with and local to processing elements (PEs) within an array processor. Improved data transfer control within a data processing system provides support for radix 2, 4 and 8 fast Fourier transform (FFT) algorithms through data reordering or bit-reversed addressing across multiple PEs, carried out concurrently with FFT computation on a digital signal processor (DSP) array by a DMA unit. Parallel data distribution and collection through forms of multicast and packet-gather operations are also supported.
    Type: Application
    Filed: August 8, 2011
    Publication date: December 8, 2011
    Applicant: ALTERA CORPORATION
    Inventors: Edwin F. Barry, Nikos P. Pitsianis, Kevin Coopman
  • Publication number: 20110225224
    Abstract: Efficient computation of complex multiplication results and very efficient fast Fourier transforms (FFTs) are provided. A parallel array VLIW digital signal processor is employed along with specialized complex multiplication instructions and communication operations between the processing elements which are overlapped with computation to provide very high performance operation. Successive iterations of a loop of tightly packed VLIWs are used allowing the complex multiplication pipeline hardware to be efficiently used. In addition, efficient techniques for supporting combined multiply accumulate operations are described.
    Type: Application
    Filed: May 26, 2011
    Publication date: September 15, 2011
    Applicant: ALTERA CORPORATION
    Inventors: Nikos P. Pitsianis, Gerald G. Pechanek, Ricardo E. Rodriguez