“A” speaker can send audio only to “U”

When listening to music at work or watching TV at home while other people are sleeping, it’s convenient to have a speaker that only delivers sound in the user’s direction.

patent-claimed“A” speaker does exactly that. It’s parametric speaker, that is, a speaker that sends audio only to those people who want to hear it by creating a narrow beam of sound, in much the same way that a laser creates a beam of light to focus on a precise area. Instead of producing ordinary sound waves with a single, moving electromagnetic coil and cone, “A” generates ultrasonic waves (high-frequency sound waves) that are then turned into audible sound waves. Users can connect “A” to mobile devices, stereos, TVs or any other audio sources via a 3.5mm mini-jack.