{
  "$type": "site.standard.document",
  "description": "A system to detect obstacles includes a power beam transmission circuit, a power beam reception circuit arranged to receive a power beam from the power beam transmission circuit, an emitter module, and a detector module arranged to distinguish between a first characteristic and a second…",
  "path": "/patents/1369324",
  "publishedAt": "2024-09-19T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01V8/22",
    "LaserMotive, Inc."
  ],
  "textContent": "A system to detect obstacles includes a power beam transmission circuit, a power beam reception circuit arranged to receive a power beam from the power beam transmission circuit, an emitter module, and a detector module arranged to distinguish between a first characteristic and a second characteristic. The emitter module includes a first emitter arranged to emit a first signal having the first characteristic, the first signal emitted in proximity to the power beam, and a second emitter arranged to emit a second signal having the second characteristic, the second characteristic different from the first characteristic. The detector module includes a first detector arranged to respond to the first signal emitted by the first emitter, the detector module being arranged to determine when an obstacle is in or near a line-of-sight transmission path between the first emitter and the first detector.",
  "title": "LIGHT CURTAIN SAFETY SYSTEM"
}