Apparatus for switching picture items of different types by suitable transition modes
US6248944A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 14, 1999 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | Sep 14, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B15/02
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A karaoke apparatus is constructed for producing karaoke accompaniments of requested songs while switching picture items of different types displayed on a monitor. In the karaoke apparatus, a sound source block works in an operating period when a requested song is present for producing the karaoke accompaniment, and does not work in a non-operating period when a requested song is absent. A picture source block provides picture items of different types suitable for use in either of the operating period and the non-operating period. A picture mixing block provides a plurality of transition modes selectively adaptable when a preceding picture item is switched to a succeeding picture item along a passage of the operating period and the non-operating period. A control block selects one of the transition modes according to the type of the preceding picture item and the type of the succeeding picture item for enabling the picture mixing block to connect the preceding picture item to the succeeding picture item by the selected transition mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.