Method of and system for rapidly locating all passive...

Details Method of and system for rapidly locating all passive... Method of and system for rapidly locating all passive...

2007-01-30

2007-01-30

Wu, Daniel (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S568100, C340S010100, C340S855500, C340S005320

Reexamination Certificate

active

10800301

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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