{
  "$type": "site.standard.document",
  "description": "According to the present invention, a wireless power-transmission apparatus comprises: a wireless power-transmission unit which wirelessly transmits power to at least one wireless power-receiving unit through a magnetic-resonance coupling system; and a master wireless power-receiving unit which is…",
  "path": "/patents/976213",
  "publishedAt": "2014-04-16T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J50/12",
    "SAMSUNG ELECTRONICS CO LTD [KR]"
  ],
  "textContent": "According to the present invention, a wireless power-transmission apparatus comprises: a wireless power-transmission unit which wirelessly transmits power to at least one wireless power-receiving unit through a magnetic-resonance coupling system; and a master wireless power-receiving unit which is connected to the wireless power-transmission unit in a wired manner so as to perform communication, and which performs peer-to-peer wireless communication with said at least one wireless power-receiving unit. The frequency of resonance used in the peer-to-peer wireless communication between the master wireless power-receiving unit and said at least one wireless power-receiving unit is the same as the frequency of resonance used in the wireless power transmission between the wireless power-transmission unit and said at least one wireless power-receiving unit.",
  "title": "WIRELESS POWER-TRANSMISSION APPARATUS AND SYSTEM"
}