| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce currents in impedance matching, and to suppress the increase of costs and the upsizing of a device. <P>SOLUTION: This printer 1 is provided with a CPU 7 and an image memory 8. Furthermore, an interface circuit device 10 for inputting and outputting a signal expressing image data is installed between the CPU 7 and the image memory 8. The interface circuit device 10 is configured of a plurality of SSTL circuits 11 to 18. As for pixels P1 and P2 adjacent to each other in the image data, the pixel P1 is defined as a non-inverting pixel, and the pixel P2 is defined as an inverting pixel. In the SSTL circuits 11 to 14 to which a signal expressing the pixel P1 is input, the input signal is input to non-inverting elements 21 so that the input signal can be prevented from being inverted. Meanwhile, in the SSTL circuits 15 to 18 to which a signal expressing the pixel P2 as an inverting pixel is input, the input signal is input to inverting elements 23 so that the input signal can be inverted. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
