| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve efficiency of reading data from a connected device. <P>SOLUTION: A projector 100 includes a USB host controller 111 configured to perform data transfer with a USB device, and a USB bus driver 113 configured to issue a READ request for data to the USB device, and resume issue of the READ request after elapse of a given retransmission time when an ACK response to the READ request is not received from the USB device. <P>COPYRIGHT: (C)2013,JPO&INPIT |
