Resources Contact Us Home
Electronic organ with multi-pitch note generators

Image Number 7 for United States Patent #4038896.

An organ is described in which a small number of note generators, each comprising a binary divider, a group of keyers, and an envelope generator, serves an entire keyboard. Each note generator is selectively operable by multiplexed signals from a keyboard to produce either of two adjacent notes in any octave interval. Six of these note generators are provided for each manual of a spinet size organ. A seventh note generator, which is selectively operable to produce any of the notes available from the other six, is provided together with selection circuitry which causes the seventh note generator to augment any one of the other six which is called upon to produce two adjacent, or two octavely related, notes simultaneously. The pitch of all notes is determined by a set of top octave dividers which drive the binary dividers individual to each note generator. Synchronizing circuitry is provided to control the phase relation between binary dividers, when they are driven by a common source, to avoid cancellation effects.

  Recently Added Patents
Housing for gas flow indicator
Systems and methods for sorting particles
Enabling improvement in cellular network coverage
Linked area parameter adjustment for spinal cord stimulation and associated systems and methods
Systems and methods for reducing narrow bandwidth interference contained in broad bandwidth signals
Inhibitors of bacterial tyrosine kinase and uses thereof
Registry key federation systems and methods
  Randomly Featured Patents
Base for a mogul-based lamp
Trigger device for chain brake
Shoe outsole
Power conditioner for circuit breaker panel and method of use
Unitized pallets
Modulator apparatus configured for implantation
Memory structure having a floating body and method for fabricating the same
Image compressing method
Compact virtual local area network mapper for the gigabit-passive optical network optical network management and control interface
Selectively adaptable far-end echo cancellation in a packet voice system