Sennheiser Electronic Gmbh & Co Kg

Stefan Thien

Kai Tossing

Andrew E Greenwood

Frank Hagemeyer

Sebastian Elliot Chafe

Stephan Scherthan

For mobile devices used in a wireless audio transmission system, for example for stage technology, like wireless microphones, body-pack transmitters with an audio input, and body-pack receivers with an audio output, electronic displays are known, on which a respective radio frequency or radio channel in use or other alphanumeric information is displayed. This information can be input at the transmitting end, for example, at a central location like a mixing desk. The displays, however, only function while the mobile devices are switched on so that it is not possible to see the association(s) of the mobile device(s) in their switched-off state. For improved identification of wireless microphones, body-pack transmitters, or body-pack receivers in which an automatic alphanumeric identification of the transmission channel in use is displayed in the switched-on state, according to the invention the display of the identification is retained even after the microphone, body-pack transmitter or body-pack receiver is switched off. In this way, mobile devices can be associated with a radio transmission path, an artist or a stage position even in the switched-off state.

Automatic identification of a wireless microphone, a body-pack transmitter or a body-pack receiver

A microphone unit is provided which includes a microphone for picking up sound of a unit which sound is to be picked up, a clamping unit having a first end configured to clamp to the unit and a second end for holding the microphone, a contactless vibration sensor configured to detect vibrations of the unit, and an audio gate unit coupled to the output of the microphone and to the output of the contactless vibration sensor as a trigger signal to allow the output of the microphone to be forwarded to an output terminal.

Microphone unit

A wireless receiver for receiving a wireless transmitted audio signal from a wireless transmitter is provided. The wireless receiver comprises a tuning assisting unit for assisting in the tuning of a music instrument coupled to the wireless transmitter. The tuning assisting unit indicates whether the audio signal from the music instrument corresponds to a specified frequency. The wireless receiver furthermore comprises an audio amplifier for amplifying the received audio signal. The wireless receiver furthermore comprises a housing which incorporates the tuning assisting unit and the audio amplifier.

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Hannover, Germany

Stefan Thien