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:
Mar. 24, 1998
Filed:
Jun. 10, 1996
Applicant:
Inventors:
Janos Gila, Vienna, AT;
Gunther Hraby, Vienna, AT;
Peter-Ernst Veith, Vienna, AT;
Martin Schiefer, Lilienfeld, AT;
Karl Asperger, Vienna, AT;
Assignee:
Siemens AG Austria, Vienna, AT;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q / ; H04B / ; G08B / ;
U.S. Cl.
CPC ...
34082554 ; 34082549 ; 340505 ; 340568 ; 340572 ; 343767 ;
Abstract
A data medium for identifying objects, in particular gas cylinders, includes a data source and an energy source. Each data medium contains at least one RF signal reflector having a characteristic frequency which can be controlled by the data source. The waveform of the characteristic frequency containing the individual identification of the data medium is in coded form. A scanning device for interrogation of the data medium and a process for controlling the data medium are also provided.