Education and demonstration – Anatomy – physiology – therapeutic treatment – or surgery...
Patent
1989-11-13
1991-07-23
Hafer, Robert A.
Education and demonstration
Anatomy, physiology, therapeutic treatment, or surgery...
434319, 224224, G09B 2328, G09B 504, A45F 300
Patent
active
050339680
ABSTRACT:
Method and apparatus are provided to present voices or music to a fetus in a manner in which the sounds more accurately resemble the same sounds as the baby will hear after birth. An apparatus is disclosed for directing sound to a fetus in a mother's womb, which includes a contouring filter, having as an input an electronic signal representing such sound, for modifying the magnitude of the signal at any frequency generally inversely proportional to the attenuation of that frequency by the body of the mother over at least a portion of the audible range of frequencies; an amplification circuit to amplify the output signal of the contouring filter; and a speaker having as an input the output of the amplification circuit.
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Brown Michael
Hafer Robert A.
Prened, Inc.
Yeager Arthur G.
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