Communications – electrical: acoustic wave systems and devices – Distance or direction finding – With time interval measuring means
Reexamination Certificate
2011-06-28
2011-06-28
Pihulic, Dan (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Distance or direction finding
With time interval measuring means
Reexamination Certificate
active
07969820
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.
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Bakka Endre
Booij Wilfred Edwin
Lund Kristian
Tysso Jonas
O'Shea Getz P.C.
Pihulic Dan
Sonitor Technologies AS
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