Physics of Sound and Vibration: Effects On Human Electro-Dynamic Physiology

  Patent No. 5023783 Evoked response audiometer for testing sleeping subjects (Cohen, et al., Jun 11, 1991) Abstract An evoked response audiometer for sleeping subjects comprising a function generator for supplying to a sleeping patient an auditory signal consisting of a carrier frequency which is periodically modulated at frequencies in excess of 60 Hz, the frequency of modulation being varied in a generally increasing manner for auditory signals of higher frequencies such that the stimulus is frequency specific, a detector for sampling and analyzing brain potentials evoked by said signal, a low-pass filter providing a time window which samples the brain potentials for a predetermined interval to provide sets of fourier analysis samples containing amplitude and phase data in narrow bands centered on the modulation frequency and its second harmonic, a computer for analyzing the Fourier analysis samples to extract means values of t...

  Patent No. 4573449   Method for stimulating the falling asleep and/or relaxing behavior of a person and an arrangement therefor (Warnke, Mar 4, 1986) Abstract A method and apparatus is provided with which a person suffering from sleeplessness can be more easily relaxed and may more rapidly fall asleep. In particular, sound pulses are emitted by an electro-acoustic transducer, according to the cadence of which, the person seeking to fall asleep is induced to breathe in and out over a predetermined period of time. By suitably selecting the pulse sequence frequency, the pitch and the amplitude of the sound pulses may be adjusted thereby enhancing the process of falling asleep. Notes: BACKGROUND OF THE INVENTION The invention relates to a method for stimulating falling asleep and/or relaxing behavior of a person by means of an electronic arrangement. From numerous medical publications as well as from daily...