Patent ID: 8813207
Filing Date: 2014-08-19
Classification: G09C,H04L,H04N

Abstract:
1. An image generating apparatus comprising: a timepiece determining section that determines whether or not the setting of an internal clock is normal; a certificate determining section that determines, when the timepiece determining section determines that the setting of the internal clock is normal, whether or not a received electronic certificate from a communication target apparatus is valid based on the setting of the internal clock; a communication section that performs communication for authentication with the communication target apparatus when the certificate determining section determines that the received electronic certificate is valid, and receives image information from an image supplying apparatus belonging to a network to which the communication target apparatus belongs or the communication target apparatus; a control section that instructs the communication section to perform communication for temporary authentication with the communication target apparatus, without updating the setting of the internal clock and determining whether the received electronic certificate is valid prior to performing the communication for temporary authentication, when the timepiece determining section determines that the setting of the internal clock is not normal, and instructs the communication section to receive time information from a time information supplying apparatus belonging to a network to which the communication target apparatus belongs or the communication target apparatus, and update the setting of the internal clock based on the time information when the timepiece determining section determines that the setting of the internal clock is not normal and the control section determines that the temporary authentication is performed successfully; and an image generating section that generates an image based on the image information.