Browsing Tarptautiniai patentai / International patents by Type (PDB) "N1d - Patentas, įregistruotas Korėjos ar Kinijos patentų biure / Patent registered in the Korean or Chinese patent offices"
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Method for generating parametric sound and means for carrying out method
(2022)The present invention discloses a method for producing parametric sound using parametric sound system which is based on ultrasonic electrostatic transducers. It comprises modulation of a carrier ultrasonic signal with a ...