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:
Nov. 03, 2009
Filed:
Jan. 03, 2006
Fletcher A. Blackmon, Forestdale, MA (US);
Lee E. Estes, Mattapoisett, MA (US);
Gilbert Fain, East Freetown, MA (US);
Lynn T. Antonelli, Cranston, RI (US);
Fletcher A. Blackmon, Forestdale, MA (US);
Lee E. Estes, Mattapoisett, MA (US);
Gilbert Fain, East Freetown, MA (US);
Lynn T. Antonelli, Cranston, RI (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
The present invention includes a system and method of use for communications from an in-air platform to a submerged platform. The system includes a laser positionable on the in-air platform above a water medium that sends a pulsed information-bearing laser beam containing a modulated communications signal to create and react in a non-linear regime manner with the water medium at an air/water interface. The beam vaporizes and optically breaks down a portion of the water medium, creates a shock wave and generates bubble oscillations at the vaporized portion. An acoustic sensor on the submerged platform detects these shock wave oscillations within the water medium and a demodulator-decoder that identifies these broadband acoustic transients that contain deterministically placed energy and demodulates-decodes the acoustic transients into the transmitted communications signals from the in-air platform.