Invention Grant
- Patent Title: Apparatus and method for reducing average scan rate to detect a conductive object on a sensing device
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Application No.: US13047035Application Date: 2011-03-14
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Publication No.: US08493351B2Publication Date: 2013-07-23
- Inventor: Tao Peng , Zheng Qin
- Applicant: Tao Peng , Zheng Qin
- Applicant Address: US CA San Jose
- Assignee: Cypress Semiconductor Corporation
- Current Assignee: Cypress Semiconductor Corporation
- Current Assignee Address: US CA San Jose
- Main IPC: G06F3/045
- IPC: G06F3/045

Abstract:
A switch circuit and method is described. In one embodiment, the switch circuit is configured to couple each of a plurality of plurality of capacitive sense elements and a plurality of capacitance sensors in different modes. In a first mode, the switch circuit is configured to couple each of the plurality of capacitance sensors to a group of two or more of the plurality of capacitive sense elements. In a second mode, the switch circuit is configured to couple the plurality of capacitance sensors to individual ones of the two or more of the plurality of capacitive sense elements in one of the groups.
Public/Granted literature
- US20120044194A1 APPARATUS AND METHOD FOR REDUCING AVERAGE SCAN RATE TO DETECT A CONDUCTIVE OBJECT ON A SENSING DEVICE Public/Granted day:2012-02-23
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