Patent ID: 7061476
Filing Date: 2006-06-13
Classification: G06F,G09G,H04N

Abstract:
1. A projection display apparatus, comprising: a communication control section configured to control communication with an external device by at least one of a first communication port and a second communication port, the second communication port adapted to be connected to an additional projection display apparatus; a storage section; and a control section configured to, in response to an initialization signal input through the first communication port, store ID information in the storage section regarding an identity of the projection display apparatus based on the initialization signal, update the initialization signal according to a predetermined rule, and transmit the updated initialization signal through the second communication port, the control section further configured to, in response to a command input through the first communication port, determine whether or not the command is directed to itself as a projection display apparatus of interest, based on address information included in the command and the ID information stored in the storage section, and the control section is further configured to carry out a processing specified by the command if the command is directed to itself as the projection display apparatus of interest.