Telecommunications – Transmitter and receiver at separate stations – Having measuring – testing – or monitoring of system or part
Reexamination Certificate
2007-07-24
2010-11-02
Tran, Tuan A (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Having measuring, testing, or monitoring of system or part
C455S423000, C455S424000, C455S425000, C455S067110, C455S067130, C455S068000, C455S074100, C455S570000, C455S115100, C455S115200, C455S226100, C702S085000, C702S107000, C702S117000, C324S130000, C324S527000, C324S755090, C324S763010
Reexamination Certificate
active
07826799
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.
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Kolano Guido
Schmidt Gerhard Uwe
Schnug Walter
Tropp Michael
Harman / Becker Automotive Systems GmbH
The Eclipse Group LLP
Tran Tuan A
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