Invention Grant
- Patent Title: Capacitive sensor interference determination
- Patent Title (中): 电容式传感器干扰测定
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Application No.: US12491102Application Date: 2009-06-24
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Publication No.: US08258797B2Publication Date: 2012-09-04
- Inventor: Shahrooz Shahparnia , Kirk Hargreaves
- Applicant: Shahrooz Shahparnia , Kirk Hargreaves
- Applicant Address: US CA Santa Clara
- Assignee: Synaptics Incorporated
- Current Assignee: Synaptics Incorporated
- Current Assignee Address: US CA Santa Clara
- Main IPC: G01R27/26
- IPC: G01R27/26
Abstract:
In a method of determining interference in a capacitance sensor, a signal is transmitted on a transmitter sensor channel of the capacitive sensor. The signal is received on a receiver sensor channel of the capacitive sensor, the receiver sensor channel being coupled with an amplifier. Behavior of the amplifier is examined for non-linearity to determine if a level of interference has been received by the receiver sensor channel in conjunction with receipt of the signal.
Public/Granted literature
- US20100327882A1 CAPACITIVE SENSOR INTERFERENCE DETERMINATION Public/Granted day:2010-12-30
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