| CPC H04N 1/00896 (2013.01) | 11 Claims |
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1. An electronic device configured to take a plurality of power states including a first power state and a second power state, the electronic device comprising:
a first controller that controls a power state of the electronic device; and
a second controller connected to the first controller via a serial communication line and a single signal line,
wherein the first controller controls the power state of the electronic device into:
the first power state in response to a first command being input via the serial communication line;
the second power state in response to a second command being input via the serial communication line;
the first power state in response to a first pattern signal being input from the single signal line; and
the second power state in response to a second pattern signal being input from the single signal line, and
wherein if power control indicated by a command input via the serial communication line is different from power control indicated by a signal pattern input from the single signal line, the first controller controls the power state of the electronic device so that the power state indicated by the signal pattern input from the single signal line is applied.
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