Patent · US Active

Method for synchronizing clocks of at least two devices

US11740652B2 · kind B2 · utility

0Cited by

6References

23Claims

0Family size

Assignee

VOLKSWAGEN AKTIENGESELLSCHAFT · DE

Inventors

Arul Matheswaran · Herne, DE
Jürgen Elberich · Wuppertal, DE
Rijo Varghese · Bochum, DE

Key dates

Filing date	Dec 7, 2021
Grant date	Aug 29, 2023
Priority date	—
Expiry date	Jan 27, 2042

Classification

Technology area (CPC H)Electricity
CPC primaryH04W56/001
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method for synchronizing clocks of at least two devices in a distributed network of a vehicle, comprising: establishing unencrypted communication between the at least two devices to determine a temporal difference between the clocks of the two devices, exchanging messages between the at least two devices via the unencrypted communication, ascertaining a temporal difference between the clocks of the at least two devices using the messages, establishing encrypted communication between the at least two devices to authenticate the exchange of messages, authenticating the messages that were used to ascertain the temporal difference, using the ascertained temporal difference, when the authentication of exchanged messages has been completed successfully.

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