Signal select in underground line location
US9473203B2 · kind B2 · utility
2Cited by
11References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2013 |
| Grant date | Oct 18, 2016 |
| Priority date | — |
| Expiry date | Apr 30, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/15
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A transmitter and receiver for performing a signal select algorithm are provided. A transmitter for providing a signal on a line to be located includes at least one direct digital synthesizer, the direct digital synthesizer producing two component frequencies in response to an input square wave signal; and a feedback loop providing the input square wave.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.