{
  "$type": "site.standard.document",
  "description": "A portable device is provided that functions as a wireless key for a door and operates on a secondary battery. The portable device includes a wireless communicator for performing wireless communication with a system that controls a lock state of the door, and a controller that controls the wireless…",
  "path": "/patents/1381668",
  "publishedAt": "2026-04-30T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60R25/406",
    "DENSO CORPORATION"
  ],
  "textContent": "A portable device is provided that functions as a wireless key for a door and operates on a secondary battery. The portable device includes a wireless communicator for performing wireless communication with a system that controls a lock state of the door, and a controller that controls the wireless communicator. The controller is configured to perform, by using the wireless communicator, transmitting an advertise signal being a wireless signal for establishing communication connection with the system, acquiring data indicating a remaining power of the secondary battery, and changing an operating mode of the portable device based on the remaining power. The operating mode relates to transmission of the advertise signal.",
  "title": "PORTABLE DEVICE AND MODE CONTROL METHOD"
}