Device for generating tone signals using modulation
US5373098A · kind A · utility
8Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1992 |
| Grant date | Dec 13, 1994 |
| Priority date | — |
| Expiry date | Sep 3, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S84/09
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A desired sound signal that is input from outside is amplitude-modulated or frequency-modulated with a signal of a predetermined characteristic which is generated from a signal generating source. A frequency characteristic controlling circuit controls the frequency characteristic of the modulated sound signal in accordance with a characteristic of a tone to be generated, and it outputs the controlled signal as a tone signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.