Patent ID: 8296572
Filing Date: 2012-10-23
Classification: G06F,H04N

Abstract:
1. A projector system comprising: an information processing apparatus supplying image data to a projector; and the projector projecting an image based on the image data supplied from the information processing apparatus, wherein the projector includes: a device connection unit of the projector which enables communication between the information processing apparatus and the projector; a password generating unit of the projector which generates a password used for determining whether to start a process for projection before the process for projection has started; and an encryption unit of the projector which encrypts the password and outputs the encrypted password to the information processing apparatus through the device connection unit of the projector, wherein the information processing apparatus includes: a device connection unit of the information processing apparatus which enables communication between the projector and the information processing apparatus; a decryption unit of the information processing apparatus which decrypts the encrypted password input through the device connection unit of the information processing apparatus using a decryption key; and a password determining unit of the information processing apparatus which has functions of determining whether the decrypted decryption password is correct and outputting a signal directing to start the process for projection to be performed by the information processing apparatus in a case where the decrypted password is correct, wherein a predetermined valid period is set for the password, the information processing apparatus acquires the decryption key through a network, from a source external to the projector system, and the source external to the projection system is a source that does not supply image data.