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:
Jan. 11, 2000
Filed:
Dec. 08, 1997
Ernst Kremers, Murrhardt, DE;
Robert Bosch GmbH, Stuttgarrt, DE;
Abstract
The device for coupling and decoupling signals of two transmission channels has an optical amplifier and a first optical coupler connected upstream in a transmission direction from the amplifier and a second optical coupler connected downstream from the amplifier. The first coupler (K1) decouples signals of a first transmission channel fed to the amplifier. The second coupler (K2) couples signals of another transmission channel (m) (n) together with signals in a second transmission channel (o) into it from the amplifier. The device is suitable as an add/drop multiplexer and couples and decouples transmission channels using only one optical amplifier for each transmission direction.