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:
Sep. 25, 2012
Filed:
Jul. 03, 2002
Darius Martin Sullivan, Cambridge, GB;
Darius Martin Sullivan, Cambridge, GB;
New Transducers Limited, Huntigdon, Cambridgeshire, GB;
Abstract
A contact sensitive device () comprising a member () capable of supporting bending waves, a first sensor () mounted on the member for measuring bending wave vibration in the member, the sensor () determining a first measured bending wave signal and a processor which calculates information relating to a contact on the member () from the measured bending wave signal, the processor applying a correction based on the dispersion relation of the material of the member () supporting the bending waves, characterized in that the device () comprises a second sensor () to determine a second measured bending wave signal which is measured simultaneously with the first measured bending wave signal and the processor calculates a dispersion corrected function of the two measured bending wave signals which is selected from the group consisting of a dispersion corrected correlation function, a dispersion corrected convolution function, a dispersion corrected coherence function and other phase equivalent functions to determine information relating to the contact.