Musical sound waveform generator having a carrier signal and a modulation signal mixed at a controlled mixing ratio
US5103711A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 12, 1990 |
| Grant date | Apr 14, 1992 |
| Priority date | — |
| Expiry date | Mar 12, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10H1/053
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A carrier signal generating unit generates a carrier signal. A modulation signal generating unit generates a modulation signal. A mixing controlling unit controls, in mixing the modulation signal with the carrier signal, a mixing ratio of the modulation signal to the carrier signal and outputs a mixed signal in which the modulation signal and the carrier signal are mixed in the controlled mixing ratio. A waveform outputting unit has a predetermined functional relation between its input and output and receives the mixed signal from the mixing controlling unit to provide a modulated musical sound waveform. In this case, the carrier signal and the modulation signal are set such that a desired musical sound waveform is obtained from the waveform outputting unit when the mixing ratio of the modulation signal to the carrier signal is controlled by the mixing controlling unit to a predetermined mixing ratio. And the present invention provides a method of setting the carrier signal and the modulation signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.