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:
Jun. 06, 1989
Filed:
May. 01, 1987
Applicant:
Inventors:
Darrel D Donaldson, Lancaster, MA (US);
Richard B Gillett, Jr, Westford, MA (US);
Assignee:
Digital Equipment Corporation, Maynard, MA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364900 ; 364935 ; 3649352 ; 3649354 ;
Abstract
A system for communicating between a plurality of nodes in a computer, each node including logic circuitry or transmitting and receiving data at first and second logic levels. The system includes an arbiter coupled to the nodes for detecting a lack of request activity from the nodes. A default generator is connected to the arbiter and responds to a lack of request activity and the absence of a multi-cycle data transfer being performed on the bus and causes the bus to be driven to one of the first and second logic levels.