Abstract: An identification system which may be employed in a transport or monitoring system has at least one stationary and at least one mobile transmission unit which are each provided with an antenna, which antennas in turn are coupled inductively or capacitively to each other during the transmission of data. At least one of the antennas is designed such that in response to a mutual displacement of the coupled antennas a direction-dependent modulation of the transmitted signals occurs which is demodulated and evaluated in at least one of the transmission units, for example, by a demodulation unit and a processor, optionally a signal processor, in order to obtain information relating to the relative motion of the two transmission units. In addition to known identification functions, the identification system may perform additional important functions without requiring any significant additional expense.

Abstract: An identification system which may be employed in a transport or monitoring system has at least one stationary and at least one mobile transmission unit which are each provided with an antenna, which antennas in turn are coupled inductively or capacitively to each other during the transmission of data. At least one of the antennas is designed such that in response to a mutual displacement of the coupled antennas a direction-dependent modulation of the transmitted signals occurs which is demodulated and evaluated in at least one of the transmission units, for example, by a demodulation unit and a processor, optionally a signal processor, in order to obtain information relating to the relative motion of the two transmission units. In addition to known identification functions, the identification system may perform additional important functions without requiring any significant additional expense.

Abstract: The inventive method allows to control a mobile wireless terminal such as a cordless or a cellular mobile station in order to limit or completely avoid disturbances the mobile terminal may cause during the receipt of a call which is a first or a second stage is acoustically or mechanically signalled to the user of the mobile terminal, comprising the steps of detecting a mechanical stimulus at least during the time an incoming call is signalled, stopping acoustical or mechanical signalling in case that a mechanical stimulus is detected and subsequently signalling the incoming call by emission of optical signals or automatically accepting the call and sending a recorded message to the calling party or switching the mobile wireless terminal off.

Abstract: The method is used for optimizing a user signal, which is to be transmitted, in a stationary or mobile voice terminal by means of which a user signal consisting of a voice signal and a first background signal is picked up via a microphone, is supplied, possibly after analog or digital signal processing, to an output stage and is delivered by the latter to a transmission medium. In the voice terminal, a memory unit is provided in which at least one second background signal is stored which is called up by a control unit and is superimposed during the entire period or part of the period of the call on the voice signal to be transmitted.

Abstract: The loudness level of an electroacoustic transducer (6) of a device (1) is controlled such that a loss in the sound pressure caused by an acoustic leak is compensated as best as possible. The device (1) is, for example, a receiver of a telephone, a hand-held radio telephone, a cordless telephone or the like. A variable interspace (22) is formed between the receiver, or earpiece (3) thereof and the ear (16) of the user. The sound pressure in the interspace (22) is measured with the aid of an acoustic sensor (11). The power of the loudspeaker (6) is controlled as a function of the measured sound pressure with the aid of a control circuit (9). The acoustic sensor (11) is, for example, a microphone which is arranged in a separate spatial volume (14) next to the loudspeaker (6).