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:
Apr. 05, 2005
Filed:
Nov. 24, 2000
Jean-luc Chatelain, Grenoble, FR;
Philippe Gueguen, Meylan, FR;
Bertrand Guillier, Dorceau, FR;
Francis Bondoux, Quito, EC;
Jean-Luc Chatelain, Grenoble, FR;
Philippe Gueguen, Meylan, FR;
Bertrand Guillier, Dorceau, FR;
Francis Bondoux, Quito, EC;
Institut de Recherche pour le Developpement, Paris Cedex, FR;
Abstract
A standalone digital data recorder of site background noise, by seismological transducer, providing at least data H and V in the form of analog signals, includes an acquisition and analog/digital conversion card, which includes at least two analog channels and a digital output, each analog channel including an input, a programmable gain analog signal amplifier and a filter, an analog multiplexer being provided between the filters and an analog/digital converter; a user interface; a removable storage device for storing data, a drive unit for an operating program, which includes a unit for enabling recording conditions, recording and warning of the end of the recording.