Invention Grant
- Patent Title: Capacitive-matrix keyboard with multiple touch detection
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Application No.: US12217143Application Date: 2008-07-01
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Publication No.: US08258986B2Publication Date: 2012-09-04
- Inventor: Mykhailo Makovetskyy
- Applicant: Mykhailo Makovetskyy
- Applicant Address: US CA San Jose
- Assignee: Cypress Semiconductor Corporation
- Current Assignee: Cypress Semiconductor Corporation
- Current Assignee Address: US CA San Jose
- Main IPC: G06F3/044
- IPC: G06F3/044 ; G06F3/041

Abstract:
An apparatus and method for detecting activation of one or more capacitive keys when presences of the one or more touches are detected on unique combinations of three or more sensor elements at the respective locations of the capacitive keys on which the one or more touches are detected. In one embodiment, the method correctly detects the activations of multiple keys when multiple substantially simultaneous touches are detected.
Public/Granted literature
- US20120044095A1 Capacitive-matrix keyboard with multiple touch detection Public/Granted day:2012-02-23
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