Patent · US Expired

Data medium for identifying objects, scanning device for interrogation of the data medium and process for controlling the data medium

US5731762A · kind A · utility

9Cited by

3References

15Claims

0Family size

Assignee

Siemens AG Austria · AT

Inventors

Janos Gila · Weitensfeld im Gurktal, AT
Gunther Hraby · Wien, AT
Peter-Ernst Veith · Wien, AT
Martin Schiefer · Wien, AT
Karl Asperger · Wien, AT

Key dates

Filing date	Jun 10, 1996
Grant date	Mar 24, 1998
Priority date	—
Expiry date	Jun 10, 2016

Classification

Technology area (CPC G)Physics
CPC primaryG01V15/00
WIPO fieldMeasurement
WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.