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:
Aug. 15, 2006
Filed:
Dec. 03, 2002
Marcel A. Leblanc, Sunnyvale, CA (US);
Marcel A. Leblanc, Sunnyvale, CA (US);
Altera Corporation, San Jose, CA (US);
Abstract
A random access memory array is used as a shift register. Data is written into different locations in a first column of the memory and then gradually transferred successively to any other number of columns in the memory. Such column-to-column data transfer is the result of reading data from each column and presenting it for writing in the next column. To compensate for latency (delay) in the column-to-column data transfer, the circuitry that controls reading is kept ahead of the circuitry that controls writing by a number of read/write cycles that takes approximately the same amount of time as the column-to-column data transfer delay.