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:
Aug. 31, 1993
Filed:
Aug. 30, 1989
Applicant:
Inventors:
Jeffrey Y Tang, Los Altos, CA (US);
J Leon Yang, Palo Alto, CA (US);
Assignee:
Digital Equipment Corporation, Maynard, MA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
375 36 ; 375 76 ; 307455 ; 307467 ;
Abstract
Data bus system and method in which a plurality of data lines extend between functional units, and data signals having a predetermined voltage swing are sent from one unit to the others over the data lines. The sending unit also generates a reference voltage at the mid-point of the voltage swing, and this reference voltage is sent to the other units on a reference line for comparison with the signals on the data lines.