{
  "$type": "site.standard.document",
  "description": "An auto clean machine, comprising: an optical sensor; a light source, configured to generate a first light pattern; and a processing circuit, configured to determine which light pattern is the first light pattern if the optical sensor senses more than one light pattern. The present invention also…",
  "path": "/patents/1332088",
  "publishedAt": "2022-11-24T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C3/02",
    "PixArt Imaging Inc."
  ],
  "textContent": "An auto clean machine, comprising: an optical sensor; a light source, configured to generate a first light pattern; and a processing circuit, configured to determine which light pattern is the first light pattern if the optical sensor senses more than one light pattern. The present invention also discloses",
  "title": "OPTICAL NAVIGATION DEVICE WHICH CAN DETERMINE DIRTINESS LEVEL OF COVER OR FIX MULTI LIGHT PATTERN ISSUE"
}