MULTIFUNCTIONAL SPEAKER

• Main Authors: KAJIWARA NORIO, MIYAMOTO KAZUMI
• Format: Patent
• Language: English
• Published: 25.08.2005
• Edition: 7
• 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

PROBLEM TO BE SOLVED: To provide a multifunctional speaker which eliminates an adverse influence caused by an electromagnetic wave from the outside by shielding the electromagnetic wave. SOLUTION: In a multifunctional speaker 1, a magnetic circuit section (movable portion) 16 comprised of a pole pie...