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:
Nov. 24, 1998
Filed:
Dec. 13, 1995
Hiroyuki Kawakami, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A system for determining whether or not two of a plurality of nodes (transmission devices) disposed in a complicated communication network, which includes control signal transmission paths and main signal transmission paths in a mixed condition, are physically connected to each other by a main signal transmission path so that setting to be performed by an operator can be performed precisely. In the system a large number of nodes, each having an intrinsic address set thereto and each having one or more ports, are connected to each other by a plurality of transmission paths by which digital signals are transmitted and each of the nodes relays a digital signal which arrives at one of the ports thereof to another one of the ports thereof. A specific bit of the digital signal is allocated as a bit for connection state retrieval.