Abstract: A connection device, in particular a screw connection device, including: an energy supply device; a communication device, and a sensor system, wherein the energy supply device is configured to supply the sensor system and/or the communication device with energy, wherein the communication device is configured to transfer a sensor value with the aid of the sensor system to the outside.

Abstract: In embodiments, instead of a uniform (global) hopping pattern that is used equally by all data transmitters and data receivers of a communication system, data transmitters and the data receiver use an individual hopping pattern for the communication. This individual hopping pattern may depend on an operation and is therefore only used by the data transmitter and the data receiver themselves or by a small group of data transmitters and/or data receivers, which may significantly increase the interference immunity.

Abstract: A participant of a communication system includes a microcontroller and a configuration interface, wherein the configuration interface includes an electromagnetic resonant circuit directly connected to the microcontroller, configured to detect and/or to generate a magnetic signal including data to be transmitted to and/or from the participant, wherein the microcontroller is connected to at least one tuning element for tuning the electromagnetic resonant circuit, wherein the microcontroller is configured to switch at least one pin of the microcontroller, with which the at least one tuning element is connected, to one of several different operating modes in order to tune the electromagnetic resonant circuit, wherein the electromagnetic resonant circuit is connected in series between a first pin of the microcontroller and a reference potential terminal, wherein the at least one tuning element is connected between the first pin and at least one second pin of the microcontroller, wherein the microcontroller is conf

Abstract: Embodiments provide a method for transmitting data between a user terminal and another apparatus. The method has a step of generating a signal for driving an electromagnetic functional unit, the electromagnetic functional unit being an actuator of a loudspeaker of the user terminal or the electromagnetic functional unit being an electromagnetic oscillating circuit connected to the user terminal. Additionally, the method has a step of driving the electromagnetic functional unit by the generated signal to produce, by the electromagnetic functional unit, a magnetic signal which carries first data to be transmitted from the user terminal to the other apparatus. Additionally, the method has a step of detecting another signal output by the other apparatus, the other signal carrying second data to be transmitted from the other apparatus to the user terminal. Thus, the magnetic signal and the other signal differ in the physical signal type.

Abstract: In embodiments, instead of a uniform (global) hopping pattern that is used equally by all data transmitters and data receivers of a communication system, data transmitters and the data receiver use an individual hopping pattern for the communication. This individual hopping pattern may depend on an operation and is therefore only used by the data transmitter and the data receiver themselves or by a small group of data transmitters and/or data receivers, which may significantly increase the interference immunity.