Electronic musical instrument with automatic accompaniment unit
US4674384A · kind A · utility
8Cited by
7References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 8, 1985 |
| Grant date | Jun 23, 1987 |
| Priority date | — |
| Expiry date | Mar 8, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S84/12
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Key operation speed of a performance key in the keyboard is detected at speed detector to produce a speed detection signal which is supplied to overspeed detector. When the speed detection signal represents that the key operation speed is higher than a reference value preset in the overspeed detector, an address signal is supplied to a rhythm pattern memory to change a designation address thereof, thereby reading out different rhythm pattern data from the memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.