Device for changing over mobile telephone call signaling between acoustic, vibration warning has sensor that detects body close to device, triggers automatic change between acoustic, vibration warning

摘要

The mobile telephone is provided with a sensor that detects the presence of a body close to the device and triggers an automatic changeover between acoustic warning and vibration warning. The sensor evaluates the heart or pulse tones of the body picked up by the microphone (1) in the mobile telephone. The evaluation takes place in the telephone's speech processor (2).