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Priority claimed from JP4174807Aexternal-prioritypatent/JP2591404B2/en
Priority claimed from JP5157934Aexternal-prioritypatent/JPH0659667A/en
Application filed by Yamaha CorpfiledCriticalYamaha Corp
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Publication of TW247954BpublicationCriticalpatent/TW247954B/en
An acoustic piano, an electronic sound producing system and a controlling system form a keyboard instrument for selectively producing acoustic sounds and electronically synthesized sounds, and the controlling system has a catcher stopper for restricting rotations of catchers before hammer heads strike sets of strings in the electronic sound producing mode, thereby giving the unique piano key-touch to a player without mixing noise with the synthesized sounds.
TW082110091A1992-06-091993-11-30Keyboard instrument having catcher stopper for silent performance on keyboard
TW247954B
(en)