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. 03, 2015
Filed:
Feb. 17, 2011
Stéphane Di Marco, Nanterre, FR;
Laurent Pichard, Nanterre, FR;
Stéphane Di Marco, Nanterre, FR;
Laurent Pichard, Nanterre, FR;
Finsecur, Nanterre, FR;
Abstract
The detection device comprises a sensor, a power supply, an alarm and an acousto-electric transducer. The activated acousto-electric transducer receives an acoustic signal and emits an electrical signal representative of the acoustic signal. The detection device further comprises a means of recognizing a predefined acoustic signal according to the electrical signal emitted by the transducer and triggering an emission of a message by the alarm when the predefined acoustic signal is recognized. The acoustic-electric transducer is only activated at regular intervals. Preferably, the transducer also serves an alarm to emit the message when the predefined acoustic signal is recognized.