System for high accuracy remote decoding
US4613980A · kind A · utility
36Cited by
2References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 4, 1984 |
| Grant date | Sep 23, 1986 |
| Priority date | — |
| Expiry date | Sep 4, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/26
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An encode-decoder system for generating highly accurate, coinciding synchronizing signals at each of plural separated locations; for example, a system generating start signals for a seismic data acquisition system. The system transmits psuedo random code data over selected communication link to a respective position decoder which samples the incoming code and compares it with a standard code. If there can be established a predetermined number of successive code matches, an output start signal is enabled when the code match count first peaks and then decreases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.