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:
Jun. 04, 2002
Filed:
Mar. 02, 1999
Roland Mueller-Fiedler, Leonberg, DE;
Klaus-Michael Mayer, Ditzingen, DE;
Wolf-Henning Rech, Leonberg, DE;
Gerd Muehlnikel, Backnang, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The optical signal transmission system includes one or more optical wave guide switches ( to ) for switching between transmission paths for transmission of light signals and an optical level adjusting device ( to ) connected with the one or more optical wave guide switches in at least one of the transmission paths. The optical level adjusting device ( to ) controls its own light transmittance with a thermooptic device ( ) and the one or more optical wave guide switches ( to ) switch between transmission paths by a similar thermooptic device ( ). The one or more optical wave guide switches and the optical level adjusting device are arranged in an integrated thermooptic circuit in a common substrate.