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. 24, 1980
Filed:
Oct. 20, 1978
Applicant:
Inventor:
Gerard Volluet, Paris, FR;
Assignee:
Thomson-CSF, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H / ; H03H / ; H03H / ;
U.S. Cl.
CPC ...
333153 ; 310 26 ; 310313 ; 333154 ; 364821 ; 364823 ;
Abstract
The invention relates to an interaction device comprising a non-magnetic substrate, a thin easy-plane magnetic layer, two piezoelectric transducers arranged at the ends of the magnetic layer and respectively receiving the two electrical signals to be treated. The signals applied are converted into elastic surface waves which are transmitted to the magnetic layer in the form of magnetoelastic waves propagated in opposite directions. The device is subjected to an external magnetic field. The variations in magnetization in the interaction zone are collected by a detection plate and characterize the interaction between the two signals.