Digital arpeggio generating device
US4106385A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 6, 1975 |
| Grant date | Aug 15, 1978 |
| Priority date | — |
| Expiry date | Oct 6, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S84/22
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An arpeggio circuit for an electronic organ employing digital encoding, decoding and code conversion techniques to semiautomatically generate an arpeggio effect composed of tone signals having an octaval relationship and corresponding to selected note keys held down on an accompaniment keyboard. The rate of generation and order of the arpeggio tone signals is controlled by means of a plurality of manually actuatable arpeggio control switches. A plurality of individually identifiable control signals are sequentially generated in response to sequential actuation of the plurality of control switches. The control signals are binarily encoded. Tone signals provided by a set of tone generators are selectively associated with appropriate ones of the encoded control signals by a tone selector circuit which provides the selected one of the tone signals to an arpeggio output tone signal generating circuit when the associated encoded control signal is being generated. An octave select circuit of the output circuit selectively generates an output tone signal at a selected octavely related frequency to the selected tone signal in response to the encoded control signal associated therewith. Both…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.