Ultramòbil: Ultrasound transducers for portable devices.

Company / Financial administration: 

ACC1Ó CIDEM /COPCA - Program Valtec. Ref: VALTEC08-2-0057


La Salle R&D

Entities participating: 

La Salle R&D

The use of parametric array technology allows generating limited zones of audible sound without needing to resort to physical barriers to separate different audio environments. This could open the possibility to listen to portable devices like mobiles or TV, without needing to use headphones. However, the main problem is parametric array high power consumption. New types of transducers based on a combination of magnetorestrictive and piezoelectric materials have been proposed to reduce power requirements. Results are protected by patent.

O. Guasch