| 摘要 |
<P>PROBLEM TO BE SOLVED: To perform authentication of a projector by receiving input of authentication information from an authentication terminal which has a separate body from the projector. <P>SOLUTION: A projector 1 becomes available only when first terminal identification information 42a for identifying an authentication terminal and first authentication information 43a for making the projector 1 available, which are received from an authentication terminal 40, agrees with second terminal identification information 21a for receiving an authentication request to the projector 1 and second authentication information 21b for making the projector 1 available, which are stored in an authentication information storage unit 21 in the projector 1, respectively. <P>COPYRIGHT: (C)2013,JPO&INPIT |
