Hierarchical telemetry system for seismic acquisition
US5627798A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 1995 |
| Grant date | May 6, 1997 |
| Priority date | — |
| Expiry date | May 5, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention is a seismic acquisition system for communicating seismic sensor signals to a recording unit, including a control unit and analog-to-digital conveyer units connected to the control unit. The conveyer units each include integral interconnecting cables having an hermaphroditic connector at each end, analog seismic sensor inputs and signal processing circuitry disposed within a watertight housing forming part of the cables. The circuitry includes analog-to-digital conveyers connected to the analog inputs, a buffer for digitized signals transmitted to one converter unit from other converter units interconnected to the conveyer unit opposite to the control unit connection, a digital transceiver for retransmission of digitized sensor signals and the buffered signals at a first data rate to the control unit. The control unit includes a second buffer for signals from the conveyer unit and for signals retransmitted from other control units serially codected to the control unit. The control unit further includes a second transceiver for retransmitting buffered signals from the conveyer units and from other control units to the recording unit at a second data rate higher than th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.