Patent ID: 11949767
Assignee: CANON KABUSHIKI KAISHA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A non-transitory storage medium storing a program to execute a control method for controlling a communication apparatus including a first counter and a second counter, the control method comprising:
generating a first clock signal for the first counter to increment a value of the first counter and a second clock signal for the second counter to increment a value of the second counter;
incrementing the value of the first counter based on the first clock signal;
incrementing the value of the second counter based on the first clock signal;
generating a synchronization signal each time the value of the second counter is incremented by a predetermined number;
transmitting the synchronization signal to another apparatus;
acquiring an error based on the value of the first counter and the value of the second counter; and
controlling the second counter based on a correction value so that the value of the second counter is closer to the value of the first counter,
wherein, in the controlling, a value based on the error acquired in the acquiring is set as the correction value in a case where the error is smaller than a predetermined value, and
wherein, in the controlling, a value smaller than the predetermined value is set as the correction value in a case where the error acquired in the acquiring is larger than the predetermined value.