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:
Jul. 09, 1991
Filed:
Aug. 25, 1989
Applicant:
Inventors:
Ikuo J Sanwo, San Marcos, CA (US);
Gregory H Milby, San Diego, CA (US);
Quynh-Giao X Le, Escondido, CA (US);
Assignee:
NCR Corporation, Dayton, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ; H03K / ; G11C / ;
U.S. Cl.
CPC ...
307475 ; 307443 ; 307452 ; 307481 ; 323315 ;
Abstract
In a high speed digital computer data transfer system, data bus voltage swings between logic high and logic low levels are reduced by defining minimum and maximum bus voltages which lie between said logic levels, thus lowering bus transition and hence data transfer times. The output voltages are converted to the proper logic levels with the aid of a differential (sense) amplifier. The preferred embodiment is implemented using complementary metal-oxide-semiconductor (CMOS) technology.