US 12,294,783 B2
Image pickup apparatus, accessory apparatus, and communication control method
Masaru Ueda, Saitama (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on May 19, 2023, as Appl. No. 18/320,430.
Claims priority of application No. 2022-083901 (JP), filed on May 23, 2022.
Prior Publication US 2023/0379577 A1, Nov. 23, 2023
Int. Cl. H04N 23/663 (2023.01); H04L 67/104 (2022.01)
CPC H04N 23/663 (2023.01) [H04L 67/104 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A camera that is operable while a plurality of accessory apparatuses are connected to the camera, the camera comprising:
a memory device that stores a set of instructions; and
at least one processor that executes the instructions to:
control communication with the plurality of accessory apparatuses using a notification channel for notification with the plurality of accessory apparatuses and a data communication channel for data communication with the plurality of accessory apparatuses, and
perform first communication for simultaneous communication with the plurality of accessory apparatuses using the data communication channel, and second communication for individual communication with a specific accessory apparatus among the plurality of accessory apparatuses using the data communication channel,
wherein in performing the second communication with the plurality of accessory apparatuses by switching between specific accessory apparatuses in a predetermined order within one or more communication periods, at least one of the communication period, a communication speed, a data packet number, a data packet length, and a combination and an order of a communication source and a communication destination to be communicated for each communication period is determined based on accessory information acquired from the plurality of accessory apparatuses.