Patent ID: 8207751
Filing Date: 2012-06-26
Classification: G09G,H04N

Abstract:
1. A semiconductor integrated circuit device comprising: an inter-equipment authentication section formed on a chip and configured to perform inter-equipment authentication between the inter-equipment authentication section itself and source equipment; a control section formed on the chip and configured to control the inter-equipment authentication section, the control section operating when a system clock from an oscillation section is supplied, and being capable of giving instructions to stop the oscillation of the oscillation section; an oscillation stop canceling section configured to output an oscillation stop canceling signal to restart the oscillation of the oscillation section, based upon whether or not 5 volts of DDC from the source equipment is supplied to an input terminal; and an oscillation control section configured to control the oscillation section on the basis of an on or off condition of a main power supply, instructions to stop the oscillation from the control section and the oscillation stop canceling signal from the oscillation stop canceling section.