Method and device for the high-rate transmission of data following a quasi-asynchronous mode
US5077698A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 1990 |
| Grant date | Dec 31, 1991 |
| Priority date | — |
| Expiry date | Oct 30, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method and device for the high-rate transmission of data between a multiplicity of acquisition apparatuses (Ai) and a central station to which they are connected by a common transmission channel (V1) for commands and by a high-rate transmission channel (V2) for data. A first clock signal (H1) serves for the transmission of the orders, the acquisition of the data and their storage in a memory (10). A second clock signal (H2) with a higher frequency non synchronous with the first one is used for reading the data stored by each acquisition apparatus. A determined time interval (or window) is assigned to each apparatus and the reading of each stored sample is activated by an order signal indicating the beginning of this window. Application to a seismic transmission system for example.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.