Key transposing electronic organ
US4058042A · kind A · utility
4Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 1975 |
| Grant date | Nov 15, 1977 |
| Priority date | — |
| Expiry date | Jun 20, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10H1/20
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A transposing electronic instrument wherein the clock frequency applied to control a top octave frequency generator is derived by comparing any single output of the generator with the response of a frequency reference circuit to that output, deriving a dc voltage representative of the difference in frequency of the input and output of the reference circuit and controlling the clock frequency from the dc voltage, thereby transposing all the outputs of the top octave frequency generator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.