Method of and system for rapidly locating all passive underground electronic marker types
First Claim
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1. A method of locating multiple passive electronic marker types;
- said method comprising;
transmitting a signal;
receiving a signal from a marker; and
determining a marker type based upon said receiving.
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Abstract
A method of and system for rapidly locating all passive underground electronic marker types in an area under survey may locate various marker types simultaneously. In accordance with one aspect of the present invention, a marker locator may sequentially transmit and receive multiple frequencies very quickly; alternatively, the transmitter may transmit a broadband signal on multiple frequencies.
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Citations
12 Claims
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1. A method of locating multiple passive electronic marker types;
- said method comprising;
transmitting a signal;
receiving a signal from a marker; and
determining a marker type based upon said receiving. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- said method comprising;
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10. A method of locating multiple passive electronic marker types;
- said method comprising;
sequentially transmitting and receiving at each of a plurality of marker type frequencies; and
determining an amplitude value for each marker type frequency received responsive to said sequentially transmitting and receiving. - View Dependent Claims (11, 12)
- said method comprising;
Specification