| 摘要 |
<P>PROBLEM TO BE SOLVED: To propose use of a memory different from a memory in a sound source LSI as a memory to hold a plurality of musical data, by replacing an ROM where musical data in the sound source LSI are written with a data rewritable RAM. <P>SOLUTION: A vacant area of a memory part for communication required for communication control or a new memory is used to replace a memory in a sound source LSI for writing musical data with a rewritable memory (RAM) and hold a plurality of musical data. When an alarm signal is regenerated, a musical datum is transferred from the memory for communication to the RAM in the sound source LSI in advance or at need, and is regenerated as a alarm signal. In addition, by using a removable memory to hold musical data, complicated operations such as registration are not required and the musical datum can be replaced with one of various musical data easily. <P>COPYRIGHT: (C)2004,JPO |
