Circuit for automatically switching on a device has signal plausibility monitoring device that only outputs signal for switching on device if data are contained in input signal

摘要

The circuit has a device for monitoring a signal input for the application of an input signal (31) in sleep or wait mode and a switch-on device (15) for switching on the switched device when receiving a switch-on signal (32) from the monitoring device (12). The monitoring device has a signal plausibility monitoring device (21) that only outputs a signal for switching on the switched device if data are contained in the input signal. Independent claims are also included for the following: a method of automatically switching on a device.