{
"$type": "site.standard.document",
"description": "The watch (2) comprises a memory (4) and a detection device (6) comprising an acceleration sensor (8), capable of measuring an acceleration vector of the watch in a three-dimensional reference frame of this watch, and an electronic unit (12) arranged to be able to process measurements provided by…",
"path": "/patents/1388139",
"publishedAt": "2025-10-29T00:00:00.000Z",
"site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
"tags": [
"G01C21/166",
"ETA SA MFT HORLOGERE SUISSE [CH]"
],
"textContent": "The watch (2) comprises a memory (4) and a detection device (6) comprising an acceleration sensor (8), capable of measuring an acceleration vector of the watch in a three-dimensional reference frame of this watch, and an electronic unit (12) arranged to be able to process measurements provided by the acceleration sensor. The electronic unit (12) is arranged to be able to detect in association with the memory, at least for a rocket of a given type, a crossing of the Kármán line by this rocket solely by means of the watch on board this rocket. A detection of a crossing of the Kármán line by the watch is performed by its detection device (6) on the basis of periodic measurements performed by the acceleration sensor from a takeoff of the rocket until the crossing of the Kármán line, as defined before the space flight, and of at least one corresponding reference value stored in the memory. The Kármán line is defined by a given altitude or a selectable altitude.",
"title": "PORTABLE OBJECT, IN PARTICULAR WATCH, PROVIDED WITH A DEVICE FOR DETECTING THE PASSAGE OF THE KARMAN LINE, AND DETECTION METHOD",
"updatedAt": "2026-06-14T15:41:10.973Z"
}