Title:
ACOUSTIC/ELECTRIC TRANSDUCER AND ELECTRONIC EQUIPMENT
Document Type and Number:
Japanese Patent JP2003163993
Kind Code:
A
Abstract:
To realize the miniaturization, weight reduction, and cost reduction of equipment having a plurality of speakers or microphones.
This acoustic/electric transducer for converting a sound into an electric signal, or for converting an electric signal into a sound is provided with a first coil 11 formed at one side of one permanent magnet 2, a first diaphragm 21 connected to the first coil 11, a second coil 12 formed at the other side of one permanent magnet 2, and a second diaphragm 22 connected to the second coil 12. Also, this electronic equipment is provided with the acoustic/ electric transducer.
Inventors:
NEGISHI TORU
Application Number:
JP2001361939A
Publication Date:
June 06, 2003
Filing Date:
November 28, 2001
Export Citation:
Assignee:
SONY CORP
International Classes:
H04R9/06; H04B7/26; H04M1/02; H04R1/02; H04R1/30; H04R7/02; H04R9/02; H04R9/04; H04R9/10; H04W88/02; (IPC1-7): H04R9/06; H04B7/26; H04M1/02; H04Q7/32; H04R1/02; H04R1/30; H04R7/02; H04R9/02; H04R9/04; H04R9/10
Attorney, Agent or Firm:
Kuninori Funabashi
Previous Patent: SPEAKER
Next Patent: AERIAL ULTRASONIC MICROPHONE AND ULTRASONIC DETECTOR EQUIPPED THEREWITH
Next Patent: AERIAL ULTRASONIC MICROPHONE AND ULTRASONIC DETECTOR EQUIPPED THEREWITH