| 摘要 |
#CMT# #/CMT# The device has filtering units for filtering sound of audio having spectrum of 8 kilohertz, where cut off frequency of the sound varies from 300 Hertz to 8 kilohertz in a given time and a given demand. The units are operated based on a variable high-pass filter (1), with characteristics that change over time. The filter depends on a frequency of a variable clock (3) obtained from a voltage controlled oscillator (2). #CMT#USE : #/CMT# Device for inducing a physical person to a sleep state from an awakening state by filtering sound in a clock-making field. #CMT#ADVANTAGE : #/CMT# The device induces the physical person to the sleep state from the awakening state by filtering sound in effective manner in order to provide efficient relaxation to the person and to preserve accumulation of types of fatigue such as physical, mental, neurological, and energetic. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a block diagram of a physical person leading device. 1 : Variable high-pass filter 2 : Voltage controlled oscillator 3 : Variable clock. |
