| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a keyboard device for an electronic keyboard musical instrument which is in simple structure and inexpensive. <P>SOLUTION: A stroke position of a key is detected as a 2nd detection point by using a keyboard switch 10 for each count signal outputted from a timer 15 and the 2nd detection point is compared with a sounding reference stroke position stored in a storage portion 16 to judge whether a sound is generated at the current stroke position of the key. Hence, a processing, for example, for speech conversion is not necessary and only numerals are compared to determine whether a sound is generated, so the load of arithmetic processing for sounding determination can be reduced. Consequently, the keyboard device for the electronic keyboard musical instrument is realized with simple constitution without using a high-performance arithmetic processing portion (in concrete, a CPU etc.). <P>COPYRIGHT: (C)2006,JPO&NCIPI |
