Patents Examined by David Wallen
  • Data mask tone variation in an electronic musical instrument
    Patent number: 4638707
    Abstract: A keyboard operated electronic musical instrument is disclosed which has a number of tone generators that are assigned to actuated keyswitches. The generated musical tones are selectively varied in tone color by multiplying tone data values by a masking function. A library of masking functions are stored and are selected by a control signal. Musical tones with time variant harmonics can be generated.
    Type: Grant
    Filed: October 4, 1984
    Date of Patent: January 27, 1987
    Assignee: Kawai Musical Instrument Mfg. Co., Ltd.
    Inventor: Ralph Deutsch