ELECTRONIC DEVICE AND ACCESSORY

Title:

ELECTRONIC DEVICE AND ACCESSORY

Document Type and Number:

WIPO Patent Application WO/2021/206009

Kind Code:

A1

Abstract:

[Problem] To reduce the occurrence of communication errors due to contact failure of some of terminals when attaching an accessory. [Solution] An electronic device (100) is configured so that an accessory (200) can be detachably attached thereto. The electronic device has a plurality of contacts (TC01-TC21) that are arranged in a line and are electrically connected to the accessory. The plurality of contacts include: an attachment detection contact (TC06) which is used in detecting attachment of the accessory to the electronic device; and a communication request contact (TC11) which is used in a communication request from the accessory to the electronic device. The attachment detection contact and the communication request contact are disposed between the contact farthest to one end side and the contact farthest to the other end side in the arrangement direction of the plurality of contacts, and the attachment detection contact is disposed between the communication request contact and the contact farthest to the one end side. In the contact arrangement direction, the distance between the attachment detection contact and the communication request contact is shorter than the distance between the communication request contact and the contact farthest to the other end side.

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Inventors:

SAKAMOTO HIROMICHI (JP)
TOHYAMA KEI (JP)
SHU TAKAYUKI (JP)
HAYASAKI HIROMI (JP)
IKEDA KOUJI (JP)
HATTORI YUHEI (JP)
ISHII KENJI (JP)
OKANO YOSHINOBU (JP)

Application Number:

PCT/JP2021/014288

Publication Date:

October 14, 2021

Filing Date:

April 02, 2021

Export Citation:

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Assignee:

CANON KK (JP)

International Classes:

G03B15/03; G03B15/05; G03B17/02; G03B17/56; H04N5/225

Foreign References:

JP2013048404A	2013-03-07
JP2020024378A	2020-02-13
JP2012189980A	2012-10-04
JP2013034172A	2013-02-14

Other References: