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.

Date of Patent:
Mar. 26, 1991

Filed:

Nov. 25, 1988
Applicant:
Inventors:

Michael M Kerber, Cleveland, OH (US);

Chris J Vrettos, Mentor, OH (US);

Carl J Brunnett, Willoughby Hills, OH (US);

John Sidoti, Parma, OH (US);

Assignee:

Picker International, Inc., Highland Hts., OH (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
36441321 ; 36518902 ; 36523002 ; 36523005 ;
Abstract

A customized random access memory circuit is provided to allow the processing of extremely high amounts of data in an area of very small physical size. The chip contains a group of interconnected registers with a set of input ports and a set of output ports. The input ports have individual write enable signals to allow them to write to selected address locations. A switching circuit is provided to ensure that the proper data from the proper input port goes to the chosen address location. A first and second set of latches are provided where the first set of latches are connected to a multiplexor first and the second set of latches are connected to a second multiplexor. The chip also contains a cycle skipping chip to allow the data to maintain its position and not be transferred through at least one clock cycle. Selected data sets which are going to be outputted have the data internally swapped to prepare it for use in floating point operations.


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