Touch detecting device, electronic musical instrument, touch detecting method and storage medium

摘要

First and third counters count an ON time between first and second contact nodes of a key and an ON time between the second contact node and a third contact node, respectively. A second counter counts a time after counting of the first counter is completed. A counter memory stores velocity counter values representing count times of the first and third counters, and a correction time counter value representing the count time of the second counter. An arrival comparator circuit compares an arrival time value and the correction time counter value. In a case that the velocity count value of the first counter is larger than a threshold value, when the arrival comparator circuit detects that the arrival time value coincides with the correction time counter value, a controller outputs a sound generation instruction including touch information according to the velocity counter value loaded from the counter memory.

主权项

1. A touch detecting device comprising:
a first counter that counts a count value corresponding to a time from when a first contact node is turned on to when a second contact node is turned on in a case that at least two of the first contact node, the second contact node, and a third contact node are sequentially turned on according to a key pressing operation; and a control circuit that outputs a sound generation instruction signal regardless of whether the third contact node is turned on or off, in a case that the count value counted by the first counter is less than a threshold value, and that outputs the sound generation instruction signal after the third contact node is turned on, in a case that the count value counted by the first counter is not less than the threshold value.