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:
Jun. 08, 1976
Filed:
Aug. 18, 1975
Applicant:
Inventor:
Adam Jilling, Newport, RI (US);
Assignee:
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R / ;
U.S. Cl.
CPC ...
340 / ; 73 / ; 73 / ; 73167 ;
Abstract
Valid artificial targets are generated by means of an external attachment ilizing a calibration transducer affixed against a homing system transducer within the nose section of the Torpedo Mark 48 Mod 1. The calibration transducer comprises four elements bonded to a Rho-C rubber surface with each element located in separate quadrants. A plurality of phase shifters for nulling purposes are connected between the four elements. Phase shifted signal inputs then enable the calibration transducer elements to provide acoustic signals corresponding to predetermined target angles.