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. 28, 1992
Filed:
Mar. 06, 1989
Applicant:
Inventors:
Assignees:
Digital Equipment Corporation, Maynard, MA (US);
Board of Regents of the Unversity, Seattle, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J / ;
U.S. Cl.
CPC ...
370 60 ; 370 941 ; 370 8513 ;
Abstract
In a digital communications network, data packets are prevented from making a transit through a domain if such data packets neither originate within nor are addressed to a node within that domain. Only data packets flagged as originating within the domain are allowed to be forwarded out of the domain.