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:
Nov. 11, 2014
Filed:
Jun. 21, 2012
Colin Lyden, Baltimore, IE;
Javier Calpe-maravilla, Algemesi, ES;
Mark Murphy, Kilmore, IE;
Eoin English, Pallasgreen, IE;
Denis Martin O'connor, Banteer, IE;
Colin Lyden, Baltimore, IE;
Javier Calpe-Maravilla, Algemesi, ES;
Mark Murphy, Kilmore, IE;
Eoin English, Pallasgreen, IE;
Denis Martin O'Connor, Banteer, IE;
Analog Devices, Inc., Norwood, MA (US);
Abstract
A drive signal for a motor-driven mechanical system has zero (or near zero) energy at an expected resonant frequency of the mechanical system. These techniques not only generate a drive signal with substantially no energy at the expected resonant frequency, they provide a zero-energy 'notch' of sufficient width to tolerate systems in which the actual resonant frequency differs from the expected resonant frequencies.