| 摘要 |
Since a power supply circuit for a controller ( 31 ) and a power supply circuit for a buffer storage unit ( 32 ) are independently provided, the power voltage for the buffer storage unit ( 32 ) need only be reduced to obtain a corresponding reduction in the amplitude of the signal waveform of digital image data transmitted along an FFC ( 40 ), without the operation of the controller ( 31 ) being adversely affected. In addition, so long as a coil ( 47 ) is located at one position in the internal power supply circuit of a control chip ( 24 ), or the external circuit thereof near its power supply circuit, the signal waveform for the digital image data transmitted along the FFC ( 40 ) can be attenuated.
|
