US 11,837,257 B2
Electronic device and control methods thereof
Yuzo Matsui, Tokyo (JP); and Jun Otsuki, Kanagawa (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jan. 19, 2022, as Appl. No. 17/578,900.
Claims priority of application No. 2021-008939 (JP), filed on Jan. 22, 2021.
Prior Publication US 2022/0238138 A1, Jul. 28, 2022
Int. Cl. G11B 20/10 (2006.01); H04N 9/804 (2006.01)
CPC G11B 20/10527 (2013.01) [H04N 9/8042 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electronic device that can perform communication with a recording medium that has a first transfer mode in which a minimum transfer speed is guaranteed, and a second transfer mode in which a minimum transfer speed is not guaranteed and a higher transfer speed than the minimum transfer speed in the first mode is capable, the electronic device comprising:
a controller that communicates with a connected recording medium; and
one or more processors that execute a program and thereby function as
a determination unit that determines a transfer mode to be used by the controller for the communication,
wherein:
the determination unit first determines whether the connected recording medium supports the second transfer mode, and performs a comparison between the minimum transfer speed in the first mode and a necessary transfer speed; and
if determined that the connected recording medium supports the second transfer mode, directs the use of the first transfer mode as the transfer mode when the minimum transfer speed is higher than the necessary transfer speed for data that is to be recorded through the communication with the recording medium, and directs the use of the second transfer mode as the transfer mode when the minimum transfer speed is not higher than the necessary transfer speed; and
if determined that the connected recording medium does not support the second transfer mode, the determination unit directs the use of the first transfer mode as the transfer mode.