Camera, interchangeable lens apparatus, adapter apparatus, control method, and storage medium
AssigneeCanon Kabushiki Kaisha
InventorJunji Shigeta
Life of this patent
Estimating the term…
Abstract
A camera includes a lens-camera communication controller and an adapter-camera communication controller. The camera-lens communication channel includes a first data communication channel used during a data communication and a first notification channel used for a notification of a timing of a communication via the first data communication channel. The camera-adapter communication channel includes a second data communication channel used during the data communication and a second notification channel used for a notification of a timing of a communication via the second data communication channel.
Claims12
An adapter apparatus to which the camera and interchangeable lens apparatus are capable to be connected, the adapter apparatus comprising:
- a relay channel for forming part of a camera-lens communication channel used for a communication between the camera and the interchangeable lens apparatus;
- an adapter-camera communication controller configured to communicate with the camera by using a camera-adapter communication channel provided separately from the relay channel;
- and
- an operation member that is operated by a user,
- wherein the camera-lens communication channel includes a first data communication line used during a data communication, a second data communication line used during a data communication and a first notification line used for a notification of a timing of a communication between the camera and the interchangeable lens apparatus,
- wherein the camera-adapter communication channel consists of a third data communication line used during a data communication and a second notification line used for a notification of a timing of a communication between the camera and the adapter apparatus, and
- wherein operation data of the operation member is transmitted via the third data communication line.
An apparatus connected to a camera, the apparatus comprising:
- a first communication controller configured to communicate with the camera by using a first communication channel;
- a second communication controller configured to communicate with the camera by using a second communication channel connected to the camera and provided separately from the first communication channel;
- and
- an operation member that is operated by a user,
- wherein the first communication channel includes a first data communication line used during a data communication, a second data communication line used during a data communication and a first notification line used for a notification of a timing of a communication via the first data communication line,
- wherein the second communication channel consists of a third data communication line used during a data communication and a second notification line used for a notification of a timing of a communication via the third data communication line, and
- wherein operation data of the operation member is transmitted via the third data communication line.
Dependencies are inferred from the claim text.