Karaoke system including host apparatus that downloads information file based on list of necessary information files
US5824934A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1996 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | Oct 29, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10H2240/241
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A host apparatus stores all of music-piece files and information files, and also stores lists information files (information file lists) required for a plurality of areas where communication karaoke apparatuses are located. When music-piece files are downloaded to a communication karaoke apparatus, information files are simultaneously downloaded. Information files required for the area are determined based on the area where the communication karaoke apparatus is located, and only the necessary information files are downloaded together with the music-piece files. As a result, the operation efficiency and the communication efficiency can be enhanced. At this time, a list of information files stored in the communication karaoke apparatus is requested, and only difference information files are downloaded so that the efficiencies can be further enhanced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.