High-precision time synchronization for a cabled network in linear topology
US9297917B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2013 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Jul 22, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure relates to methods and apparatuses for reducing propagation delay uncertainty while conducting a survey. The apparatus includes a plurality of nodes along a communication path configured to allow communication between nodes with only one clock domain boundary crossing. Each node may include a clock, a memory, and a processor. The plurality of nodes is arranged in a linear topology. The linear topology may have first and second nodes on the ends of the line. The method may include reducing propagation delay uncertainty using at least one time marker transmitted to each of the plurality of nodes without crossing a clock domain boundary of any other node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.