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:
Apr. 12, 1994
Filed:
Mar. 13, 1992
Dietrich Bottle, Salach, DE;
Gert Eilenberger, Kirchheim, DE;
Standard Elektrik Lorenz A.G., Stuttgart, DE;
Abstract
A switching device for being connected to switch optical input signals received on a plurality of optical input signal lines into optical output signals on a plurality of optical output signal lines; each device has a time slot interchanger or a wavelength converter in combination with a space-division switching stage for freely exchanging signals on different lines, wherein, according to the invention, such a switching device has multiple stages, including both a time slot interchanger stage and a wavelength converter stage in combination with two space-division switching stages and wherein between every two of the space-division switching stages a time slot interchanging or wavelength converting stage is inserted; the time slot interchanger stages may alternate with wavelength converter stages with a space-division switching network stage in between.; the stages may be combined, such as space-division switching stages and time-slot-interchanging or wavelength-converting stages forming a single functional unit. The apparatus may comprise a module for use in a system having a plurality of such modules.