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:
May. 12, 1992
Filed:
Sep. 24, 1990
Applicant:
Inventor:
Helmut Pascher, Munich, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J / ;
U.S. Cl.
CPC ...
359117 ;
Abstract
In an optical communication network for multiplex operation, a light waveguide is conducted up to a branching point proceeding from a respective distributing location. A division of the signals into two sub-signals with a directional coupler occurs at this branching point. A second light waveguide that is connected to the second input of the directional coupler is additionally laid between the distributing and the branching point. A switching onto the second light waveguide is provided. A system is described for two-way management using a pair of direction couplers connected crossed to a plurality of direction couplers on the subscriber side.