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Hand type musical timepiece
   
Document Number
US Patent 4474480
Issued Date
October 2, 1984
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Abstract
A hand type musical timepiece, namely, an analog musical timepiece comprising a hand adapted to be driven by a step motor for the visual indication of tones of a melody, a staff or a pattern of a keyboard formed on a plane extending adjacently to an imaginary plane to be swept by the hand, a melody playing device, and a normal-reverse rotation controller to move the hand in synchronism with the melody so that the hand indicates the position corresponding to the individual tone of the melody on the staff or on the keyboard. The time indicating operation and the tone indicating operation of the hand and the mode changeover operation are controlled by an exclusive circuit designed therefor and a programmed microcomputer.
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Hand type musical timepiece - US Patent 4474480 Drawing
Drawing from US Patent 4474480
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Number of Claims:
8
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Owner
Published
October 2, 1984
Application Number
06/536,776
Filed
September 28, 1983
US Classification
368/80   368/223 368/272 968/490 968/605 968/900 D10/33
Int'l Classification
G04C   3/00   (20060101)   G04C   3/14   (20060101)   G04G   1/00   (20060101)   G04C   23/00   (20060101)  
Examiner
Attorney/Law Firm
Priority Data
Oct 01, 1982 [JP] 57-173728
USPTO Field of Search
368/76   368/80   368/272   368/273  
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Description
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