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:
May. 13, 2008
Filed:
Jul. 27, 2006
Herbert Barthel, Herzogenaurach, DE;
Ingmar Binder, Ursensollen, DE;
Herbert Barthel, Herzogenaurach, DE;
Ingmar Binder, Ursensollen, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
An electronic circuit having an input, an output with an input filter for delaying a change of an input signal and a control component for supplying an output signal and evaluating the input signal. The delay is a time constant. An industrial automation system is provide with the electronic circuit and a fail-safe component connected to an input and an output of the circuit. To increase the probability of detecting errors in the electronic circuit, the control component is provided for supplying a test signal for output through the output, for making a first evaluation of the input signal to be provided immediately after the output of a test signal and for making a second evaluation of the input signal after expiry of a time after output of the test signal which at least corresponds to the time constant. A method for testing an electronic circuit is also provided.