FACILITIES FOR WORKING

PURPOSE:To improve work efficiency by giving insignificant noise (sound whose spectrum is continuous and has a small timewise change) to an operator under an environment in which a surrounding sound (sound coming toward the operator) being one of causes to decrease the work efficiency of the operato...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YAMAMORI KAZUHIKO, SAWAKI MINAKO
Format:	Patent
Sprache:	eng
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHYSICS SOUND-PRODUCING DEVICES TELEPHONIC COMMUNICATION
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Beschreibung
Zusammenfassung:	PURPOSE:To improve work efficiency by giving insignificant noise (sound whose spectrum is continuous and has a small timewise change) to an operator under an environment in which a surrounding sound (sound coming toward the operator) being one of causes to decrease the work efficiency of the operator is in existence. CONSTITUTION:The facilities are so constituted that a directive sound collection device 21 picking up only a surrounding sound and not picking up the voice of the operator is installed and insignificant noise is generated to the ear of the operator in matching with the sound volume of the sound picked up by the sound collection device 21. Even when the insignificant noise (sound disturbing the work of the operator) is in existence around the operator, more excellent state is formed than the case with only the surrounding sound and the work efficiency is improved.