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:
Nov. 03, 1998
Filed:
Aug. 14, 1996
Applicant:
Inventors:
Gerhard Hochstuhl, Waldshut-Tiengen, DE;
Philippe Maibach, Brugg, CH;
Assignee:
Asea Brown Boveri AG, Baden, CH;
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
359144 ; 319173 ;
Abstract
An optical fiber transmission system is specified which can be checked in a simple way for satisfactory power reserve. For this purpose, a transmission current ID is modulated with a frequency fT by switching over the current between a normal value IDN and a smaller test value IDT, which is not equal to zero.