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:
Dec. 25, 1984
Filed:
Apr. 21, 1982
Applicant:
Inventors:
David C Ives, Carlisle, MA (US);
David K Miller, Medford, MA (US);
Simon Steely, Jr, Nashua, NH (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364200 ;
Abstract
A high-speed data transfer unit that transfers data between a central processing unit in a data processing system and an external device such as a disk drive. The transfer unit has two control units, one that controls transfers with the central processing unit under control of port control commands from the processor, and the other that controls transfers with the external device under control of operational commands.