Data transmission device
US5691915A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Mar 13, 1995 |
| Grant date | Nov 25, 1997 |
| Priority date | — |
| Expiry date | Mar 13, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/17318
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
When the terminal 5 requests a partial access of a desired karaoke song to the center 3 in S380, only the climactic passage data of the karaoke song is transmitted from the center 3 to the terminal 5. The terminal 5 reproduces the climactic passage in S400. Then, the terminal 5 determines whether or not the user will pay for the karaoke song in S410. When the payment is confirmed, the terminal 5 requests total access to the center 3 in S340, receives the entire data of the karaoke song in S350, and reproduces the data in S360. It is possible to prevent the user from erroneously requesting a total access of a karaoke song which the user does not want to sing. It is ensured that the user can obtain karaoke songs which he/she really wants to sing, within a short period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.