Title:
STEREO HEADPHONE DEVICE FOR CONTROLLING THREE-DIMENSION SOUND FIELD
Document Type and Number:
Japanese Patent JP2939105
Kind Code:
B
Abstract:
PURPOSE: To reproduce sound with high accuracy by providing an acoustic interrupt device and an acoustic signal generator and controlling the sound so as to reproduce a sound filed in matching with a listener wearing a stainless- steel headphone based on a value measured a with sensor.
CONSTITUTION: Acoustic signal input terminals 101, 102 are connected to an acoustic generator and in close contact with an entry of an external ear of a listener. Furthermore, an external field sound interrupt device is mounted in a form of enclosing around the ear shell of the listener. Signals from plural sensors 106 fitted to a headphone section 103 are fed to a sensor information processing unit 104. A sensor information processing and external communication CPU 108 starts a sensor control section 109 based on a request signal from an external processing unit in the inside of the processing unit 104 to receive position information and temperature information from the sensors 106. Based on the content of a sensor information correction ROM 107, the information is corrected to calculate information of distance of left right ears, deviation of position of left and right ears, and size of a head. Then the CPU 108 sends the information to an external processing unit.
Inventors:
Nakazawa, Masayuki
Application Number:
JP1993000331277
Publication Date:
June 11, 1999
Filing Date:
December 27, 1993
Export Citation:
Assignee:
SHARP CORP
International Classes:
G01K5/00; G01C3/00; H04R1/10; H04R5/033; H04S1/00; G01K5/00; G01C3/00; H04R1/10; H04R5/00; H04S1/00; (IPC1-7): H04S1/00; H04R1/10; H04R5/033