High speed downhole communications network having point to multi-point orthogonal frequency division multiplexing
US6580751B1 · kind B1 · utility
27Cited by
25References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2000 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | Feb 1, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2601
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and related apparatus for high speed digital data conmunications from multiple distributed modems to a single central modem or a common transmission medium. In one embodiment, multiple downhole modems, with each modem associated with a geophone, transmit data to a surface modem over a single transmission medium. In a second embodiment, multiple transmission mediums are used and a plurality of downhole modems associated with geophones communicate to the surface modem over the downhole modem's respective transmission medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.