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:
May. 27, 1986
Filed:
Aug. 31, 1983
Alan Huang, Ocean, NJ (US);
Jay H O'Neill, Old Bridge, NJ (US);
AT&T Bell Laboratories, Murray Hill, NJ (US);
Abstract
There is disclosed a modular memory cell structure including a data latch, an occupancy bit latch and control logic. Each memory cell has access to the occupancy bit status of adjacent cells and to the input, output, control, and status busses. The occupancy status provides positional address information enabling each cell to determine if data in its data latch is the first, intermediate, or last element of a data queue. When a group of memory cells and an initialization circuit are interconnected, a modular integrated circuit design results which can function as either a first in-first out (FIFO) or a last in-first out (LIFO) memory.