# US 10,321,319 B2 · Securing access to vehicles

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,321,319 B2
- Document ID: US10321319B2
- Status: Granted
- Kind: B2
- Application number: 15/565,876
- Filed: 2016-02-24
- Published: 2018-04-05
- Granted: 2019-06-11
- Earliest claimed: 2015-04-13
- Assignees: Huf Huelsback & Fuerst GmbH & Co. KG
- Applicants: Huf HüLsbeck & FüRst GmbH & Co. KG
- Inventors: Sven Gennermann
- Web page: https://patentgrep.com/patent/US10321319B2

## CPC

- H04W 12/08: Access security
- B60R 25/24: using electronic identifiers containing a code not memorised by the user
- G07C 9/00571: {operated by interacting with a central unit}
- H04L 67/04: specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
- H04L 67/1095: Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
- H04L 67/1097: for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
- H04L 67/12: specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04W 12/082: using revocation of authorisation
- H04W 12/12: Detection or prevention of fraud
- H04W 12/126: Anti-theft arrangements, e.g. protection against subscriber identity module [SIM] cloning
- B60R 25/2018: {Central base unlocks or authorises unlocking}
- B60R 2325/101: Bluetooth®
- B60R 2325/103: Near field communication [NFC]
- B60R 2325/205: Mobile phones
- H04L 2463/121: Timestamp
- H04W 12/61: Time-dependent
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- G07C: TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

A method for securing an access method for vehicles includes a mobile device and a remote control device for administration of access rights. The mobile device is repeatedly connected to the remote control device and characteristic synchronizing data are generated for each connection. One part of the synchronization data is stored in the mobile device and in the remote control device. Characteristic prior synchronization data of a preceding connection is transmitted from the mobile device to the remote control device. A consistency check is performed in the remote control device between the prior synchronization data received from the mobile device and the prior synchronization data stored in the remote control device. If the data are consistent, the connection is terminated and a synchronization interval is waited before the connection is restored for the next synchronization. If the data are inconsistent, the mobile device is blocked from further access to vehicles.

## Claims

### Claim 1

A method for securing an access method for vehicles, wherein the access method has at least one mobile device and one remote control system for administration of access rights, having the steps,
repeated autonomous connection of the mobile device to the remote control system,
generation of characteristic new synchronization data for each connection in the remote control system and transmitting the characteristic new synchronization data from the remote control system to the mobile device,
storing at least part of the characteristic new synchronization data in the mobile device and in the remote control system,
transmission of characteristic prior synchronization data of a preceding connection of the mobile device to the remote control system,
checking for consistency in the remote control system between the prior synchronization data received from the mobile device and the prior synchronization data stored in the remote control system, wherein,
in the event that the data are consistent, interrupting the connection, and waiting a synchronization interval, before resuming the connection for the next synchronization; and
in the event that the data are inconsistent, blocking the mobile device from further access to vehicles.

### Claim 2 (depends on 1)

The method according to claim 1, wherein asymmetric data are stored in the mobile device and in the remote control system.

### Claim 3 (depends on 1)

The method according to claim 1, wherein a central platform is used as the remote control system, which administers the access rights for numerous users, vehicles and dedicated mobile devices, and communicates with numerous vehicle-side vehicle control systems for controlling access thereto.