Method for producing half-tone, variable-density seismic trace recordings
US4086600A · kind A · utility
2Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 1976 |
| Grant date | Apr 25, 1978 |
| Priority date | — |
| Expiry date | Jul 15, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a seismic data processing system, seismic data in channel-sequential format intensity modulates the electron beam of a cathode-ray tube. A photographic drum plotter provides a recording of the seismic data displayed on the face of the cathode-ray tube. A screen of multilined squares is placed in contact with the photographic film on the drum plotter so that the seismic data is recorded in a half-tone, variable-density format.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.