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:
Mar. 17, 2009
Filed:
Jun. 01, 2006
Chryssostomos Chryssostomidis, Boston, MA (US);
Daniel Sura, Palm City, FL (US);
George E. M. Karniadakis, Newton, MA (US);
Corey Jaskolski, Severance, CO (US);
Richard Kimball, Nottingham, NH (US);
Chryssostomos Chryssostomidis, Boston, MA (US);
Daniel Sura, Palm City, FL (US);
George E. M. Karniadakis, Newton, MA (US);
Corey Jaskolski, Severance, CO (US);
Richard Kimball, Nottingham, NH (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
Described is a device for generating an acoustic signal in an electrically conductive medium such as salt water. The device of the present invention has a broadband frequency response and supports high bandwidth data transmission. Reliability is improved in comparison to conventional underwater acoustic transmitters as the device includes no moving components. In one embodiment, the device includes a parallel and alternating arrangement of electrodes and magnets. Neighboring electrodes have different voltages and neighboring magnets have opposite pole configurations such that the magnetic fields overlap the currents between the electrodes in the medium. The currents or the magnetic fields are modulated according to a data signal to generate an acoustic signal in the medium.