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. 24, 2019
Filed:
Nov. 27, 2018
The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US);
Mark A. Kemp, Belmont, CA (US);
Matthew A. Franzi, Burlingame, CA (US);
Erik N. Jongewaard, Boulder Creek, CA (US);
Emilio A. Nanni, Redwood City, CA (US);
Andrew A. Haase, Belmont, CA (US);
The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US);
Abstract
A piezoelectric dipole transmitter is provided that includes a piezoelectric element, an insulating support disposed at a midpoint of said piezoelectric element, or along the piezoelectric element, an external capacitance driver, and an external modulation capacitance disposed proximal to a first end of the piezoelectric element, where the driver capacitance is driven by a signal appropriate to excite a length-extensional acoustic mode of the piezoelectric element, where the piezoelectric element resonates at a piezoelectric element resonance frequency to radiate energy as an electric dipole.