Image processing apparatus

An image processing apparatus, comprising:

• a receiver circuit configured to receive a transmission signal using serial communication, the transmission signal including (a) image data and (b) a synchronization signal that has a pulse period fluctuated in a predetermined fluctuation range;
• a data reception processing unit configured to (a) extract the image data and the synchronization signal from the received transmission signal, and (b) write each line of the image data into a line memory among line memories while selecting the line memory line by line in turn in accordance with the synchronization signal;
• a line data reading unit configured to read each line of the image data from a line memory among the line memories while selecting the line memory line by line in turn in accordance with the synchronization signal;
• and
• an error detecting unit configured to determine whether a pulse period of the synchronization signal is in the predetermined fluctuation range or not, and if the pulse period of the synchronization signal is not in the predetermined fluctuation range, discard the image data written into the line memory in this pulse period.