Patent ID: 11907008
Assignee: CANON KABUSHIKI KAISHA
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. A method comprising:
causing a communication unit of a communication apparatus to operate in any one of a plurality of modes including a first mode and a second mode, the first operation mode being a mode in which the communication unit performs a normal communication with an external apparatus, the second mode being a mode in which the communication unit operates with lower power consumption than in the first mode;
controlling, in a case where the communication unit operates in the second operation mode, a supply unit of the communication apparatus so as not to supply a clock signal to the communication unit;
controlling the supply unit to start supply of the clock signal to the communication unit in response to receiving a predetermined signal while the communication unit is operating in the second mode and the clock signal is not being supplied to the communication unit; and
outputting the predetermined signal in response to lapse of a return period having been set.