| 摘要 |
PROBLEM TO BE SOLVED: To obtain an image processor that transfers image data at a stable frame rate even when another device on an interface bus is operated at the same time so as not to cause missing frames of a moving picture. SOLUTION: An image information precision conversion section 5 converts 8-bit data into f-bit data (f<=8) according to precision information from a transfer rate recognition section 7. An interface section 8 outputs digital image data whose quantization precision is converted to a USB 9 synchronously with a pixel transfer signal outputted from a personal computer. The transfer rate recognition section 7 measures a period of a frame transfer request signal sent from the personal computer via the USB 9 to recognize an effective transfer rate of the digital image data in the USB 9. |
