Method and security apparatus for validating an authorization for locking and unlocking and/or using an object

US7071817B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Mario Haselsteiner · Bad Kötzting, DE
• Klaus Hofbeck · Dresden, DE
• Thomas Klement · Regensburg, DE
• Birgit Rosel · Regensburg, DE
• Arnd Stielow · Regensburg, DE

Key dates

• Filing date: Feb 5, 2004
• Grant date: Jul 4, 2006
• Expiry date: Jul 22, 2024

Classification

• Technology area (CPC G): Physics
• CPC primary: G07C2209/63
• WIPO field: Control
• WIPO sector: Instruments

Abstract

Taking as a starting point known security apparatuses and their methods for distance-dependent initiation of functions in or at an object, the reliability of distance measurements is essentially increased by carrying out a series of distance measurements, an associated quality value (G) being calculated by a mathematical function in each case for the measuring results (M1–M5, R1, R2) of said distance measurements. Only those measured values which fall below a certain quality value (Krit) as a threshold value are generally accepted for an analysis in respect of initiating a distance-related function. Developments provide for selecting measured values beforehand with reference to a level measurement, in order to further increase the reliability, or applying methods of statistical analysis subsequently.