Patent ID: 7825916
Filing Date: 2010-11-02
Classification: G06F,G09G

Abstract:
1. A controller for controlling a display on a screen, comprising: at least one display control section for outputting display contents to be displayed on the screen; a display section for updating the display on the screen by displaying on the screen the display contents outputted from the at least one display control section; a failure monitoring section for detecting that a failure has occurred in one of the at least one display control section, outputting failure detection information, and restarting the one of the at least one display control section; a restoration monitoring section for detecting that the one of the at least one display control section has been restored from the failure and for outputting restoration detection information; a display update control section for controlling the display section so as to, in response to the failure detection information, suspend updating the display and in response to the restoration detection information, start updating the display; an input notification section for outputting an external input as input notification information to the one of the at least one display control section; and an input notification control section for, in response to the outputted failure detection information, suspending outputting the input notification information to the one of the at least one display control section, which is performed by the input notification section and in response to the outputted restoration detection information, starting outputting the input notification information to the one of the at least one display control section, which is performed by the input notification section, wherein the restoration monitoring section, when the input notification information outputted from the input notification section matches with predetermined specific input notification information, causes the one of the at least one display control section to terminate, thereafter restarts the one of the at least one display control section in a manner for coping with the predetermined specific input notification information, and outputs restoration interruption information, wherein the input notification control section controls the input notification section so as to, in response to the outputted failure detection information, output the input notification information to the restoration monitoring section and in response to the outputted restoration interruption information, output the input notification information to the one of the at least one display control section, wherein the display update control section controls the display section so as to start updating the display in response to the outputted restoration interruption information, and wherein the display section does not change the displayed contents on the screen after the display section is controlled so as to suspend updating the display until the display section is controlled so as to start updating the display.