{
  "$type": "site.standard.document",
  "description": "A system for providing operational control of a vehicle includes a first network device and control module. The first network device includes: polarized antennas; a transmitter transmitting an initiator packet via the polarized antennas from the vehicle to a second network device including a…",
  "path": "/patents/1259455",
  "publishedAt": "2020-04-16T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G07C9/00309",
    "DENSO International America, Inc."
  ],
  "textContent": "A system for providing operational control of a vehicle includes a first network device and control module. The first network device includes: polarized antennas; a transmitter transmitting an initiator packet via the polarized antennas from the vehicle to a second network device including a synchronization access word and a CW tone, one of the first and second network devices is implemented within the vehicle, the other one of the first and second network devices is a portable access device, and at any moment in time, at least one of the polarized antennas is not cross-polarized with an antenna of the second network device; and a receiver receiving a response packet from the second network device including the synchronization access word and the first CW tone. A control module determines a difference in RTT between the initiator and response packets and detects a range extension type relay attack.",
  "title": "PASSIVE ENTRY/PASSIVE START SYSTEMS USING CONTINUOUS WAVE TONES AND SYNCHRONIZATION WORDS FOR DETECTING RANGE EXTENDER TYPE RELAY STATION ATTACKS"
}