Patents Assigned to Leson Laboratorio de Engenharia Sonica S.A.
  • Electroacoustic transducer
    Patent number: 5245669
    Abstract: The invention relates to an improved piezoelectric loudspeaker for high frequency, more commonly known as a tweeter. The invention embraces a technological improvement which permits the size of the tweeter to be substantially reduced while maintaining or even improving its performance when compared to other tweeters. In the device, a diaphragm is placed at least partially inside a coil so that the size of the tweeter can be reduced. The coil activates a piezoelectric element which drives the diaphragm causing it to vibrate and produce sound.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: September 14, 1993
    Assignee: Leson Laboratorio de Engenharia Sonica S.A.
    Inventor: Helio T. Bittencourt