Invention Grant
- Patent Title: Apparatus for improving signal-to-noise performance of projected capacitance touch screens and panels
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Application No.: US15168319Application Date: 2016-05-31
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Publication No.: US09910543B2Publication Date: 2018-03-06
- Inventor: Attma Sharma , Cory Walton , Jerry Hanauer
- Applicant: Microchip Technology Incorporated
- Applicant Address: US AZ Chandler
- Assignee: MICROCHIP TECHNOLOGY INCORPORATED
- Current Assignee: MICROCHIP TECHNOLOGY INCORPORATED
- Current Assignee Address: US AZ Chandler
- Agency: Slayden Grubert Beard PLLC
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06F3/044 ; H03K17/22 ; H03K19/0175

Abstract:
Improved signal-to-noise performance of projected capacitance touch screens and panels is provided by an integrated circuit regulated high voltage source and high voltage/current drivers coupled to a plurality of projected capacitive touch elements that are controlled by a microcontroller. The single integrated circuit high voltage generator/driver may comprise a voltage boost circuit, a voltage reference, power-on-reset (POR), soft start, a plurality of voltage level shifters and a serial interface for coupling to the microcontroller that may control all functions related to using the projected capacitance touch screens and panels.
Public/Granted literature
- US20160274731A1 Apparatus for Improving Signal-to-Noise Performance of Projected Capacitance Touch Screens and Panels Public/Granted day:2016-09-22
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