Automatic rhythm generator for electronic musical instrument
Patent 4656911 Issued on April 14, 1987. Estimated Expiration Date: 
March 8, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 8, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMusical instrument rhythm programmer having provision for automatic pattern variation Electronic musical instrument Patent #: 4171658 InventorAssigneeApplicationNo. 06/709539 filed on 03/08/1985US Classes:84/611, Rhythm84/613, Chords84/650, Accompaniment (e.g., chords, etc.)84/651RhythmExaminersPrimary: Witkowski, S. J.Assistant: Warren, David Attorney, Agent or FirmInternational ClassG10H 1/38 (20060101)Foreign Application Priority Data1984-03-15 JPAbstractEvery time a new chord signal is supplied to a chord memory circuit, a previous chord signal is supplied to a chord comparison and calculation circuit together with the new chord signal to obtain a chord change signal representing a degree of change between the two sequentially designated chords. The chord change signal is stored in chord change memory circuits. Chord name signals and chord change signals are compared with chord change pattern signals outputted from a change pattern memory to cause a coincidence signal to hold a latch. A rhythm pattern selection signal thus is supplied from the latch to a rhythm pattern memory circuit. | |
