Invention Grant
- Patent Title: Control apparatus for operation panel and electronic apparatus
- Patent Title (中): 操作面板和电子设备的控制装置
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Application No.: US13221564Application Date: 2011-08-30
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Publication No.: US08830173B2Publication Date: 2014-09-09
- Inventor: Yuichi Naoi , Yasufumi Ogasawara
- Applicant: Yuichi Naoi , Yasufumi Ogasawara
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon USA, Inc., IP Division
- Priority: JP2006-181893 20060630
- Main IPC: G06F3/02
- IPC: G06F3/02 ; G09G3/14 ; G09G3/36
Abstract:
A signal line used in a key matrix is shared between a signal line used in a first display unit and a signal line used in a second display unit. Two types of periodical pulse signals are superimposed on a level signal which indicates data displayed on the second display unit. One type is a pulse signal for detecting key input and another type is a pulse signal which indicates data displayed on the first display unit.
Public/Granted literature
- US20110316786A1 CONTROL APPARATUS FOR OPERATION PANEL AND ELECTRONIC APPARATUS Public/Granted day:2011-12-29
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