Altera Corporation

Duke University

Pts Corporation

Other

Bops, Incorporated

Billions of Operations Per Second

Flir Systems, Incorporated

Nikos P Pitsianis

Gerald George Pechanek

Edwin Franklin Barry

Ricardo E Rodriguez

Edward A Wolff

Grayson Morris

Edwin Frank Barry

Kevin Coopman

David Brady

Patrick Rene Marchand

Charles W Kurak, Jr

David Carl Strube

Dale Edward Schneider

Carl Donald Busboom

Thomas L Drabenstott

Prasant Potuluri

Xiaobai Sun

Marco Jacobs

Marco C Jacobs

Sanjay Banerjee

Zhaochun Xu

Michael D Feldman

Benjamin Strautin

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.

Methods and apparatus for providing bit-reversal and multicast functions utilizing DMA controller

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.

Efficient complex multiplication and fast fourier transform (FFT) implementation on the ManArray architecture

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.

System core for transferring data between an external device and memory

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.

Focal plane coding for digital imaging

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&#x2212;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[2]/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.

Methods and apparatus for single stage Galois field operations

Growing community of inventors

Durham, NC, United States of America

Nikos P Pitsianis