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. 21, 1977
Filed:
Feb. 11, 1976
Applicant:
Inventor:
Guy Parent, Le Plessis-Robinson, FR;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
G01S / ;
U.S. Cl.
CPC ...
340 / ;
Abstract
The invention concerns a position measuring device used for measuring the sition of a vessel equipped with three hydrophones arranged at the apexes of a right-angled triangle in relation to a transmitting beacon on the sea bed. Measuring of the differences in the travel time between the beacon and the various hydrophones as well as of the depth of the water and analogic calculating of the position of the vessel in a simple way and without approximation.