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:
May. 14, 1996
Filed:
Mar. 28, 1995
Applicant:
Inventors:
Wayne L Smith, London, CA;
Ivan Vesely, Cleveland Heights, OH (US);
Andrew W Gubbels, Mt. Brydges, CA;
Assignee:
Sonometrics Corporation, London, CA;
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
12866101 ; 128916 ;
Abstract
A method and apparatus for simultaneous measurement of multiple distances by means of networked piezoelectric transducers. Through the use of high frequency digital counters, the propagation delay between the activation of an ultrasonic transducer and the reception by similar transducers is quickly and accurately defined. By alternating the duty cycle between transmit and receive modes, the system can track and triangulate the three-dimensional positions for each transducer.
Published as:
US5515853A; CA2215508A1; WO9631753A2; AU5140496A; WO9631753A3; EP0879426A2; JPH11503629A; EP0879426B1; ATE195024T1; DE69609529D1; DE69609529T2;