The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 11, 2021
Filed:
Nov. 25, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Yutaka Watanabe, Utsunomiya, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A cameraand accessory devicesandperform communication via channels including a data communication channel used for data communication and a notification channel for notifying timing of communication performed via the data communication channel. Each of the accessory devicesandperforms switching from a first communication mode to a second communication mode upon receiving communication-partner designation data via the data communication channel with communication in the first communication mode, the communication-partner designation data indicating that the relevant accessory device has been selected as a communication partner with the camera