| 摘要 |
PROBLEM TO BE SOLVED: To provide a tuning machine that can indicate with a small number of luminous elements the string to be tuned and whether a detected pitch is the just tune, or higher or lower than the just tune.MEANS FOR SOLVING THE PROBLEM: Tune indicating luminous elements, three each of string indicating luminous elements disposed on the same straight line on one side and the other side of six strings with the tune indicating luminous elements at the center and one string indicating luminous element corresponding to a string to be tuned to be the string to be tuned are caused to be indicated; if the detected pitch of an input signal is higher than the just tune, one out of five string indicating luminous elements other than one string indicating luminous element corresponding to the string to be tuned is caused to indicate that it is too high; if the detected pitch is lower than the just tune, another out of the five string indicating luminous elements corresponding to the string to be tuned is caused to indicate that it is too low; or if the detected pitch is the just tune, the tune indicating luminous elements are caused to indicate that it is the just tune.SELECTED DRAWING: Figure 1 |
