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. 28, 2011
Filed:
Apr. 22, 2008
Wilfred Edwin Booij, Nordby, NO;
Jonas Tysso, Oslo, NO;
Kristian Lund, Oslo, NO;
Endre Bakka, Lillestrøm, NO;
Wilfred Edwin Booij, Nordby, NO;
Jonas Tysso, Oslo, NO;
Kristian Lund, Oslo, NO;
Endre Bakka, Lillestrøm, NO;
Sonitor Technologies AS, Oslo, NO;
Abstract
An ultrasound position determination system includes a base unit and at least one mobile unit. Each of the mobile and base units are operable to transmit and receive ultrasonic signals. The mobile unit is adapted to transmit a predetermined signal in dependence upon the state of transmission of the base unit. The base unit is adapted to determine the time taken for the signal to pass from the mobile unit to the base unit and thereby calculate a distance between the mobile unit and the base unit.