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:
Nov. 13, 1990
Filed:
Jul. 31, 1989
David Sherman, Fremont, CA (US);
Atari Games Corporation, Milpitas, CA (US);
Abstract
A memory cell and array of memory cells specially adapted for support of bit serial math for low cost CAD workstations. The memory cell is comprised of a multiplexer which selects between several inputs for application of data to a bit storage cell of a dynamic RAM nature. Each cell multiplexer has a serial data input, a parallel data input, a parallel format pipeline data input and a recirculation data input. Each cell also has a first output which serves both as a serial data output and a pipeline data output, and a second data output which is tri-state and which is coupled to a parallel format data bus which runs through the array. A plurality of such cells are arranged in rows and columns where rows of such cells are coupled so that data may passed between the rows in either parallel format or serial format for pipeline operations and such each row can independently load data in either serial or parallel format and output data in either parallel or serial format. Ech cell has a selectable recirculation path which allows any cell or group of cells to be used as RAM or as a shifting network.