Patent ID: 9029678
Filing Date: 2015-05-12
Classification: G09B,G10G

Abstract:
1. A digital piano, comprising: a keyboard, comprising a plurality of keys; a plurality of LED prompting lights corresponding to and disposed on the plurality of keys respectively; a mode selector connected with the keyboard so as to make the digital piano at least work in a LED rectifying mode; a sound engine connected with the keyboard and configured to receive an input note information relative to a key pressed and to convert the input note information into a first note data; a digital music sheet processor connected respectively with the sound engine and the mode selector, configured to receive the first note data in real time from the sound engine, to compare an input note corresponding to the first note data with the note of a preset music sheet based on the preset music sheet and the first note data when the mode selector selects the LED rectifying mode and to determine whether to continue to play; and at least one speaker, configured to send out a sound according to a sound signal corresponding to the first note data, wherein when the mode selector selects the LED rectifying mode, if a current note of the preset music sheet is not corresponding with the input note, the LED prompting light on the key corresponding to the current note is turned on and the digital music sheet processor stops at the current note; and if the current note of the preset music sheet is corresponding with the input note, the LED prompting light remains turned off, and the digital music sheet processor works on a next note.