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US 4,741,240 AGranted
Recorder
AssigneeNippon Gakki Seizo Kabushiki Kaisha
InventorsShuhei Kawano, Yuko Yamada, Masaaki Mizuguchi, Akihiko Takeuchi
Life of this patent
Estimating the term…
Abstract
In construction of a musical recorder, a sound collector such as a microphone is attached to the body of the recorder at the position of the constant belly of the basic vibration of resonant air columns formed in the bore of the recorder at musical tone generation in order to obtain constant sound collecting level with large howling margin at musical tone regeneration without any influence of the wall configuration of the bore.
Claims11
An improved recorder, comprising:
- (A) an elongated tube having a bore formed therein, said bore being open at one end of said tube and closed at the other end of said tube, a wind-way formed at said other end of said tube in communication with said bore, a radially open window formed in the vicinity of said wind-way in communication with said bore and a plurality of aligned sound holes in communication with said bore, and
- (B) sound sensing means located internally of said tube at said other end of said tube and adjacent said bore for sensing the vibrations in said bore and producing electrical signals as a function thereof.
Dependencies are inferred from the claim text.