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:
Sep. 04, 2007
Filed:
Aug. 23, 2000
Harald Bock, Munich, DE;
Patrick Leisching, Munich, DE;
Alexander Richter, Munich, DE;
Detlef Stoll, Boca Raton, FL (US);
Harald Bock, Munich, DE;
Patrick Leisching, Munich, DE;
Alexander Richter, Munich, DE;
Detlef Stoll, Boca Raton, FL (US);
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A tunable add/drop&continue or drop&continue module comprises two optical filters where at least one is tunable and that are arranged following one another between a branching unit for optical signals and an insertion unit follow a branching unit for optical signals. The reflection attenuation of the one tunable optical filter is lower and the transmission attenuation higher than that of the other optical filter, as a result of which the drop&continue function of the module can be realized without high circuit-oriented expense.