Patent · US Active

Shared use of a motor vehicle antenna by an E-Call controller

US9966645B1 · kind B1 · utility

4Cited by

6References

17Claims

0Family size

Assignee

AUDI AG · DE

Inventors

Aurel Papp · Ribnitz-Damgarten, DE
Andreas Pohl · Groß-Umstadt, DE
Jürgen SPEHL · Wettstetten, DE
Lars REICHARDT · Wettstetten, DE

Key dates

Filing date	Feb 27, 2016
Grant date	May 8, 2018
Priority date	—
Expiry date	Feb 27, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH04L67/12
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A switching apparatus alternately connects a mobile radio module and an E-Call controller to an antenna/ The switching apparatus includes a first signal input, a second signal input, an antenna connection and a changeover device that changes between a first switching state and a second switching state, based on at least one switching signal. In the first switching state, only the first signal input is electrically connected to the antenna connection, and in the second switching state, only the second signal input is electrically connected to the antenna connection. To prevent a connected transmission devices from diagnosing decoupling from the antenna connection as a fault, in at least the second switching state the changeover device electrically connects the signal input that is decoupled from the antenna connection to a terminating device which emulates an antenna at the signal input that is connected to the terminating device.

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