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Title:
電子機器
Document Type and Number:
Japanese Patent JP6381381
Kind Code:
B2
Abstract:
An electronic apparatus includes a first detection electrode group, a second detection electrode group, a third detection electrode group, a rotating member for moving among positions in which the rotating member faces the first to third detection electrode groups, a detection unit for detecting electrostatic capacitances of the first to third detection electrode groups, a determination unit for determining a rotation direction, a rotation amount, or a rotation angle of the rotating member in accordance with the electrostatic capacitances of the first to third detection electrode groups and threshold values for the first to third detection electrode groups, and an updating unit for updating a reference value of one of the first to third detection electrode groups corresponding to a selected smallest electrostatic capacitance using the selected smallest electrostatic capacitance.

Inventors:
Kento Inai
Application Number:
JP2014186902A
Publication Date:
August 29, 2018
Filing Date:
September 12, 2014
Export Citation:
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Assignee:
Canon Inc
International Classes:
G06F3/0362; H01H19/00; H01H36/00
Domestic Patent References:
JP2013030120A
JP2001296966A
JP2014119931A
Attorney, Agent or Firm:
Takuma Abe
Sogo Kuroiwa