Circuit structure for operating a mobile telephone with an interface to data transmission connects to an antenna in a motor vehicle

摘要

Antennas (4-7) in a motor vehicle can transmit in transmitter and receiver frequency bands for a mobile telephone (1). Linked to an interface (2), an evaluatory circuit (3) receives and evaluates data available on the interface for quality of radio connection and forms a control signal that depends on the quality of the radio connection.