Patent · US Active

System for calibrating a hands-free system

US7826799B2 · kind B2 · utility

3Cited by

7References

27Claims

0Family size

Assignee

HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH · DE

Inventors

Guido Kolano · Salach, DE
Gerhard Uwe Schmidt · Ulm, DE
Walter Schnug · Memmingen, DE
Michael Tropp · Blaustein, DE

Key dates

Filing date	Jul 24, 2007
Grant date	Nov 2, 2010
Priority date	—
Expiry date	Jul 31, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH04M1/6075
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A method for calibrating a hands-free system is provided. The hands-free system comprising a hands-free unit and a mobile phone, the method comprising the following steps of setting up a connection between the hands-free system and a distant terminal via a mobile telephony network of the mobile phone, transmitting a predetermined test signal from one of the hands-free system and the distant terminal to the other of the hands-free system and the distant terminal, the predetermined test signal being provided in both the hands-free system and the distant terminal as reference test signal, comparing the received test signal to the reference test signal stored in the other of the hands-free system and the distant terminal, and determining the calibration parameters of the hands-free system in accordance with the comparison.

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