The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 17, 2025

Filed:

Jun. 08, 2022
Applicant:

Mercedes-benz Group Ag, Stuttgart, DE;

Inventors:

Konrad Betz, Stuttgart, DE;

Matthias Reinhardt, Sindelfingen, DE;

Marco Leicht, Neuhausen, DE;

Assignee:

MERCEDES-BENZ GROUP AG, Stuttgart, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/02 (2018.01); B60R 25/24 (2013.01); G07C 9/00 (2020.01); H04W 12/08 (2021.01);
U.S. Cl.
CPC ...
H04W 4/023 (2013.01); B60R 25/24 (2013.01); G07C 9/00309 (2013.01); H04W 12/08 (2013.01); G07C 2009/00357 (2013.01); G07C 2209/63 (2013.01);
Abstract

A method for authorizing access to a motor vehicle involves monitoring a decrease in the signal strength of the second communication connection, while the identification transmitter is moved away from the motor vehicle, such that the spacing between the motor vehicle and the identification transmitter increase. The current signal strength of the second communication connection is stored as a reference value as soon as the first communication connection between the motor vehicle and the identification transmitter is deactivated/interrupted. The first communication connection is reactivated as soon as the signal strength of the second communication connection exceeds the stored reference value due to the decreasing spacing between the motor vehicle and identification transmitter when the identification transmitter is moved towards the motor vehicle again.


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