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:
Jun. 03, 1994
Applicant:
Inventor:
Horst Ohnsorge, Freiberg, DE;
Assignee:
Alcatel SEL Aktiengesellschaft, Stuttgart, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J / ; H04B / ;
U.S. Cl.
CPC ...
359117 ; 359118 ; 359120 ; 359121 ;
Abstract
A fiber-optic network has a branching net in which only three optical waveguides are interconnected at each of a plurality of active or passive branch points (A, B). The branch points are designed to permit bidirectional transmission in each of three paths. Subscriber facilities (F) are connected or connectable to the optical waveguides of the network at arbitrary points. To increase reliability, a fiber-optic ring main (50) is provided to which the ends of the optical waveguides forming a branching net are connectable via controllable optical switches (D).