{
  "$type": "site.standard.document",
  "description": "A power transmitter () provides power to a power receiver () via an inductive power transfer signal which is also used by the power receiver () for communication by load modulation. The power receiver () comprises a transmitter () arranged to transmit symbols in accordance with a first or second…",
  "path": "/patents/1373147",
  "publishedAt": "2025-01-30T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J50/80",
    "KONINKLIJKE PHILIPS N.V."
  ],
  "textContent": "A power transmitter () provides power to a power receiver () via an inductive power transfer signal which is also used by the power receiver () for communication by load modulation. The power receiver () comprises a transmitter () arranged to transmit symbols in accordance with a first or second communication mode where the first mode modulates data symbols by a chip sequence from a set of sequences and the second communication mode does not. The power receiver () may transmit data symbols requesting a power transfer signal variation using a chip sequence from the set. A detector () may detect if the variation occurs, and if so a selector () selects the first communication mode and otherwise it selects the second communication mode. The approach may allow selection of an appropriate communication mode without requiring data to be transmitted from the power transmitter. The approach may provide improved backwards compatibility.",
  "title": "WIRELESS POWER TRANSFER"
}