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:
Oct. 11, 1994
Filed:
Jun. 09, 1992
Robert C Kochem, Belmont, MA (US);
Peter Hayden, Mont Vernon, NH (US);
Digital Equipment Corporation, Maynard, MA (US);
Abstract
A wiring concentrator (160)for Fiber Distributed Data Interface (FDDI) networks employs only two PHY modules (182 and 184) for initialization of all attached stations (174, 176, 178, and 180). A bank of switches (204, 206, 208, and 210) initially switches one of the stations into full-duplex communication with one of the PHY modules (182), with which it performs the initialization process. The attached station (174, 176, 178, or 180) is then switched into a loop formed with the other PHY (184), in which loop the station remains in the active state that it reached as a result of the initialization process. The process is then repeated for each attached station. A separate PHY module thus is not required for every attached station.