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. 20, 1993
Filed:
Sep. 17, 1991
Robert A Turner, Petaluma, CA (US);
Other;
Abstract
An electro-mechanical pickup for a musical instrument having a plurality of strings. The pickup includes a core, a first piezoelectric transducer element connected in parallel with a second piezoelectric transducer element, and a two-conductor output lead. Using two piezoelectric transducer elements connected in parallel increases the output voltage and capacitance of the pickup compared with using a single piezoelectric transducer element. The core is elongated, and has a first face opposite a second face. The first piezoelectric transducer element includes first and second electrodes on opposite faces of a first piezoelectric film. The second piezoelectric transducer element includes third and fourth electrodes on opposite faces of a second piezoelectric film. The piezoelectric transducer elements are each responsive to more than one string of the musical instrument. The first piezoelectric transducer element is stacked on the core with the second electrode in contact with the first face of the core. The second piezoelectric tranducer element is stacked on the first piezoelectric transducer element with the third electrode in contact with the first electrode. The output lead is attached to the core, with one conductor electrically contacting the first electrode and the third electrode, and the other conductor electrically contacting the second electrode and the fourth electrode.