{
  "$type": "site.standard.document",
  "description": "A method for detecting a foreign object disposed in a charging area of a wireless power transmitter can include transmitting, by the wireless power transmitter, a power signal having a predetermined strength; measuring, via a controller, a peak frequency of the power signal; receiving, from a…",
  "path": "/patents/1250219",
  "publishedAt": "2019-12-12T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J50/60",
    "LG INNOTEK CO., LTD."
  ],
  "textContent": "A method for detecting a foreign object disposed in a charging area of a wireless power transmitter can include transmitting, by the wireless power transmitter, a power signal having a predetermined strength; measuring, via a controller, a peak frequency of the power signal; receiving, from a wireless power receiver, information about a reference peak frequency of the wireless power receiver; determining, via the controller, a threshold frequency based on the reference peak frequency; and determining, via the controller, whether the foreign object is present in the charging area based on a comparison of the measured peak frequency of the power signal with the determined threshold frequency.",
  "title": "METHOD FOR DETECTING FOREIGN MATERIAL, AND DEVICE AND SYSTEM THEREFOR"
}