Scale indicator for a keyboard instrument
US6632991B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 2, 2002 |
| Grant date | Oct 14, 2003 |
| Priority date | — |
| Expiry date | Mar 23, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B15/02
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A scale indicator for a keyboard of a keyboard instrument has a stand, a belt and an indicating element. The belt is moveably mounted on the stand. A key selecting area is mounted on the belt and has multiple key-selecting blocks each illuminating at least one symbol of a musical key. A note illuminating area is mounted on the belt and has multiple note-illuminating blocks. Each note-illuminating block shows a symbol of a note and corresponds to one of the keys of the keyboard instrument. The indicating element corresponds to one of the key-selecting blocks to select the music key shown on the key-selecting block. Accordingly, the user can strike the keys on the keyboard according to the note symbols on the note-illuminating blocks in the selected music key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.