DISPOSITIVO ELETTROACUSTICO CON RISPOSTA DIREZIONALE D'INTERVALLO DI FREQUENZE DI LARGA BANDA

An electroacoustic device comprises an array of electroacoustic transducer elements for producing a prescribed directional response pattern at a first frequency. Each element includes apparatus for restricting the frequency range of sound waves incident on said element so that the directional respon...

Full description

Saved in:
Bibliographic Details
Main Author JAMES LOTON FLANAGAN
Format Patent
LanguageItalian
Published 20.03.1986
Edition4
Subjects
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
FOR PERFORMING MECHANICAL WORK IN GENERAL
GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY
PERFORMING OPERATIONS
PUBLIC ADDRESS SYSTEMS
TRANSPORTING
Online AccessGet full text

Cover

More Information
Summary:An electroacoustic device comprises an array of electroacoustic transducer elements for producing a prescribed directional response pattern at a first frequency. Each element includes apparatus for restricting the frequency range of sound waves incident on said element so that the directional response pattern is invariant over a prescribed frequency band.
Bibliography:Application Number: IT19860019818