×

Determining an extremum value and its index in an array using a dual-accumulation processor

  • US 5,991,785 A
  • Filed: 11/13/1997
  • Issued: 11/23/1999
  • Est. Priority Date: 11/13/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. In a data processor, apparatus for determining an overall extremum value of a set of array data, the apparatus comprising:

  • first and second compare-select circuits operating in parallel, the first compare-select circuit for processing a first data set to determine a first extremum value and the second compare-select circuit for processing a second data set to determine a second extremum value, the first and second data sets together constituting the set of array data;

    the first or second compare-select circuits determining the overall extremum value between the first and second extremum values and storing the location of the overall extremum value in the set of array data; and

    a first register derived from a counter storing the location of the extremum value for the first data set and a second register derived from the counter storing the location of the extremum value for the second data set, one of the first or second registers, depending on whether the extremum value is in the first or second data set, being manipulated by one or more operations using constant values in order to determine the overall extremum index.

View all claims
  • 6 Assignments
Timeline View
Assignment View
    ×
    ×