Invention Grant
- Patent Title: Capacitive sensing
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Application No.: US14189461Application Date: 2014-02-25
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Publication No.: US10060959B2Publication Date: 2018-08-28
- Inventor: Krishnasawamy Nagaraj , Paul Kimelman , Abhijit Kumar Das
- Applicant: Texas Instruments Incorporated
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Michelle F. Murray; Charles A. Brill; Frank D. Cimino
- Main IPC: G01R27/26
- IPC: G01R27/26 ; G01R29/26
Abstract:
A capacitive sensing system includes a controller, a node connected to one side of a capacitance, the controller configured to measure the capacitance by measuring a time for a voltage across the capacitance to reach a predetermined reference voltage, a noise measurement circuit configured to measure electrical noise on the node, and the controller receiving the measurement of noise from the noise measurement circuit.
Public/Granted literature
- US20140239977A1 CAPACITIVE SENSING Public/Granted day:2014-08-28
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