Patent · US Active

Relay attack prevention

US11760305B2 · kind B2 · utility

1Cited by

1References

18Claims

0Family size

Assignee

NAGRAVISION SARL · CH

Inventors

Frederic Thomas · Loperhet, FR
Joel Conus · Yverdon-les-Bains, CH

Key dates

Filing date	Dec 16, 2021
Grant date	Sep 19, 2023
Priority date	—
Expiry date	Mar 15, 2042

Classification

Technology area (CPC G)Physics
CPC primaryG07C2209/63
WIPO fieldControl
WIPO sectorInstruments

Abstract

Passive entry systems, such as passive entry-passive start vehicle systems, using short-range wireless communication signals to determine a distance between nomadic devices and unlockable devices based on a round trip time of flight (TOF) measurement.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.