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:
Dec. 10, 2002
Filed:
Aug. 09, 2000
Applicant:
Inventors:
Bruno Sabbattini, Wettingen, CH;
Josef Lehmann, Waldshut-Tiengen, DE;
Paul Rudolf, Villigen, CH;
Daniel Matter, Brugg, CH;
Assignee:
ABB Research Ltd, Zurich, CH;
Primary Examiner:
Int. Cl.
CPC ...
H04M 1/104 ;
U.S. Cl.
CPC ...
H04M 1/104 ;
Abstract
In a data transmission system for a pipeline which is electrically conductive at least in sections, the pipeline itself forms a data line. For this purpose, a coupling element is present for the modulation of electrical signals onto a potential of the pipeline. A cost-effective data transmission system is created which can be used in remote regions.