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:
Jun. 02, 2015
Filed:
Nov. 14, 2011
Beat DE Coi, Sargans, CH;
Tobias Leutenegger, Chur, CH;
Beat De Coi, Sargans, CH;
Tobias Leutenegger, Chur, CH;
Cedes AG, Landquart, CH;
Abstract
A monitoring sensor for detecting a test signal from an external signal generator at an input for receiving signals, to switch the monitoring sensor from a passive state to an active state when a signal is detected, to switch the monitoring sensor to a test state after a test period 't2' has expired, to change an output signal from an output of the monitoring sensor after an activation period 't3' has expired, this change in the output signal corresponding to a signal which arises when the monitoring sensor triggers a switching operation after an object has been detected, to convert the output signal to the initial state again after the withdrawal of the test signal has been detected, and to provide this renewed signal change as the signal for an external signal generator, the monitoring sensor changing to the monitoring state after this signal sequence.