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:
Mar. 09, 1999
Filed:
Sep. 29, 1997
Applicant:
Inventors:
Andrew L Hawkins, Starkville, MS (US);
Muthukumar Nagarajan, Starkville, MS (US);
Ajay Srikrishna, Starkville, MS (US);
Assignee:
Cypress Semiconductor Corp., San Jose, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
36518901 ; 36518905 ;
Abstract
A method and apparatus for greatly simplifying the circuitry needed to handle the bubbleback situations in FIFO memories includes an additional row of cells added to the memory array. By adding an extra row of memory cells, the read and write pointer are only on the same row when the FIFO is operating near the empty boundary or in fallthrough mode.