Slickline signal filtering apparatus and methods
US7053787B2 · kind B2 · utility
6Cited by
20References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2002 |
| Grant date | May 30, 2006 |
| Priority date | — |
| Expiry date | May 5, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H21/0012
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A signal filtering apparatus and associated methods enable noise to be significantly reduced or eliminated from a signal. In a described embodiment, the signal is indicative of tension in a slickline. An adaptive filter is used to effectively cancel the noise from the signal, using an input signal characteristic of a noise source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.