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:
Mar. 26, 1996
Filed:
Dec. 28, 1992
Applicant:
Inventor:
Thomas F Heil, Easley, SC (US);
Assignee:
NCR Corporation, Dayton, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395293 ; 395856 ;
Abstract
A Peripheral Component Interconnect (PCI) bus has a protocol that guarantees that at all times, except for turn-around clocks necessary to prevent contention, that the bus is actively driven to a logic 1 or 0 by some device attached thereto. As long as all devices attached to the bus are compliant with the specification, the bus will never be left floating for long intervals, and thus the system designer is free to eliminate the pull-up resistors typically required on other buses.