Title:
ELECTRONIC DEVICE, AND ACCESSORY
Document Type and Number:
WIPO Patent Application WO/2021/206006
Kind Code:
A1
Abstract:
[Problem] To reduce the effect of noise from a clock signal on a signal of an adjacent contact while suppressing an increase in the number of contacts. [Solution] An electronic device (100) is configured so that an accessory (200) can be detachably attachment thereto. The electronic device has a plurality of contacts that are arranged in a line and are electrically connected to the accessory. The plurality of contacts include: an attachment detection contact (TC06) that is used to detect the attachment of the accessory to the electronic device; and a first clock contact (TC07) that is used, in communication between the electronic device and the accessory, to transmit a first clock signal. The potential of the attachment detection contact changes from a predetermined potential to a ground potential after the accessory is attached to the electronic device. The attachment detection contact is disposed next to the first clock contact.
Inventors:
IKEDA KOUJI (JP)
TOHYAMA KEI (JP)
SAKAMOTO HIROMICHI (JP)
SHU TAKAYUKI (JP)
HAYASAKI HIROMI (JP)
HATTORI YUHEI (JP)
ISHII KENJI (JP)
OKANO YOSHINOBU (JP)
TOHYAMA KEI (JP)
SAKAMOTO HIROMICHI (JP)
SHU TAKAYUKI (JP)
HAYASAKI HIROMI (JP)
HATTORI YUHEI (JP)
ISHII KENJI (JP)
OKANO YOSHINOBU (JP)
Application Number:
PCT/JP2021/014282
Publication Date:
October 14, 2021
Filing Date:
April 02, 2021
Export Citation:
Assignee:
CANON KK (JP)
International Classes:
G03B15/03; G03B15/05; G03B17/02; G03B17/14; G03B17/56; H04N5/225
Domestic Patent References:
| WO2017073081A1 | 2017-05-04 | |||
| WO2015068492A1 | 2015-05-14 |
Foreign References:
| JP2015099396A | 2015-05-28 | |||
| JP2018205738A | 2018-12-27 | |||
| JP2019078931A | 2019-05-23 | |||
| JP2013034172A | 2013-02-14 |
Other References:
See also references of EP 4134739A4
Attorney, Agent or Firm:
FUJIMOTO Ryosuke (JP)
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