| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an on-vehicle audio device capable of operating even if electric power from a battery of an automobile main body is not supplied and holding various settings of the device. <P>SOLUTION: A microcomputer 11 maintains data in a data memory 12 using electric power of a secondary battery 13 and performs limited operation of each part of the device set in advance when an accessory switch 31 is turned off and electric power from the on-vehicle battery 30 is not supplied. When the accessory switch 31 is turned on and electric power from the on-vehicle battery 30 is supplied, the microcomputer 11 performs usual operation by electric power from the on-vehicle battery 30 and stops use of electric power of the secondary battery 13. <P>COPYRIGHT: (C)2004,JPO</p> |
