User management system for musical accompaniment playing apparatus
US5218580A · kind A · utility
11Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 1992 |
| Grant date | Jun 8, 1993 |
| Priority date | — |
| Expiry date | Apr 9, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10H2240/181
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A user management system is provided for a musical accompaniment playing (KARAOKE) apparatus. The system comprises an individual information recording medium, an input unit, a music information reproducing unit, a control unit and a calculation unit. The input unit is used to input user identification information and music piece selection. The control unit serves to set a musical environment and to record changes in the environment for the user. The calculation unit makes adjustments based on the number of music pieces recorded on the individual information recording medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.