ELECTRONIC MUSICAL INSTRUMENT WITH A KEYBOARD DEVICE CAPABLE OF PRODUCING SPECIAL MUSICAL EFFECTS UPON KEY DEPRESSION
申请公布号:US3715447(A)
申请号:USD3715447
申请日期:1971.05.13
申请公布日期:1973.02.06
发明人:OHNO J,JA
分类号:G10H1/055;(IPC1-7):G10H1/02
主分类号:G10H1/055
摘要:In an electronic musical instrument, a keyboard device comprises a flexible and substantially non-extensible tape elastically supported on a keyboard frame below playing keys, and a first and a second detectors at both ends of the tape to generate electrical signals each having an amplitude corresponding to the amount of displacement of each tape end. The electric signals from the first and second detectors are supplied to a signal adder and a signal substractor, the adder giving out signals when the both tape ends move inward and the substractor giving out signals when one tape end moves inward and the other end outward. The output from the adder is supplied to a volume control circuit, while the output from the substractor is supplied to a vibrato effect producing circuit. On this instrument, a downward depression of the key produces an expression control effect, and a lateral movement of the key produces a vibrator effect.
LOCK MEANS FOR MULTIPLE CONTROL ELEMENTS
CONTROLS OF ROTARY-WING AIRCRAFT
FOLDING AND RECLINING ARMCHAIRS
Mixtures of polyvinyl ethers with phenol-acetylene resins
Flume gate for cranberry bogs and the like
Method of coating metal surfaces
Semiautomatic sole-edge inking machine
Preparation of alkylated aromatic hydrocarbons and sulfonation thereof