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:
Aug. 17, 1976
Filed:
May. 29, 1975
Gerard Kantorowicz, Paris, FR;
Thomson-CSF, Paris, FR;
Abstract
Solid-state diodes constituted by a semiconductor 3 and an insulated electrode 1 are aligned upon a piezoelectric substrate 4 at the surface of which there propagate the acoustic waves induced by the signals applied to transducers 7 and 8. With each diode there is associated a capacitor whose dielectric is constituted by a portion of the substrate 4; 9 designates the terminals of the electrodes 2 and 5 between which a voltage pulse is applied, in order to charge up the capacitors, after a first high frequency signal has been applied to the transducer 7. Thus, there is stored the high frequency signal at the terminals of the capacitor. During discharge of the capacitor, a second signal is applied to one of the transducers 7 or 8. At 9, there is picked off either the correlation or the convolution of the stored signal and the second signal.