Method and device for initializing data, and particularly seismic data, acquisition apparatus
US4897821A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1989 |
| Grant date | Jan 30, 1990 |
| Priority date | — |
| Expiry date | Jan 27, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and device are provided for initializing acquisition apparatus including the use of coded infrared rays for transmitting data and a control case, the initialization being provided by modulating a light beam in amplitude by means of a carrier signal, this latter being modulated both in frequency and in phase and the modulation depending on the initialization signals. A programmable processing unit delivers the digital data to an infrared ray transmitter, the light signals received in return from the acquisition cases provided with similar transmission means being received by an infrared receiver, decoded and reshaped before being applied to the processing unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.