The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 28, 2004
Filed:
Jun. 28, 2002
Philip E. May, Palatine, IL (US);
Kent Donald Moat, Winfield, IL (US);
Raymond B. Essick, IV, Glen Ellyn, IL (US);
Silviu Chiricescu, Chicago, IL (US);
Brian Jeffrey Lucas, Barrington, IL (US);
James M. Norris, Naperville, IL (US);
Michael Allen Schuette, Wilmette, IL (US);
Ali Saidi, Cambridge, MA (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A memory interface device ( ) providing a fractional address interface between a data processor ( ) and a memory system ( ) and a method for retrieving intermediate data values from a memory system using fractional addressing. The device includes an address generator ( ) for generating first and second memory addresses, the first memory address being less than or equal to a specified fractional address, the second memory address being greater than or equal to the fractional address. The device also includes a memory access unit ( ) coupled to the address generator ( ) for retrieving first and second data values from the memory system ( ) at the first and second memory addresses, respectively. The device also includes a data access unit ( ) for interpolating between the first and second data values and passing the interpolated value to the data processor ( ). The memory interface has application in a variety of data processing systems, including digital signal processors and streaming vector processors.