Patent ID: 8439818
Filing Date: 2013-05-14
Classification: A61M

Abstract:
1. A sleep inducing apparatus comprising: an audio generator for generating audio signals; a signal generator for generating electrical signals with a frequency between 0.4 HZ and 4 HZ; and a signal processor comprising: a switch unit switching between an open state and a closed state based on the electrical signals, and an adjusting unit adjusting the amplitudes of the audio signals based on the states of the switch unit; wherein the switch unit is a metal oxide semiconductor field effect transistor (MOSFET); the adjusting unit comprises a first resistor and a second resistor, and a gate of the MOSFET is electrically connected to the signal generator, a drain is electrically connected to an output node, a source is grounded via the second resistor, one end of the first resistor is electrically connected to the audio generator, the other end is electrically connected to the output node, the output node outputting the adjusted audio signals.