Invention Application
- Patent Title: SINGLE-CHIP MULTI-STIMULUS SENSOR CONTROLLER
- Patent Title (中): 单芯片多传感器控制器
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Application No.: US15270950Application Date: 2016-09-20
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Publication No.: US20170010744A1Publication Date: 2017-01-12
- Inventor: Steven Porter HOTELLING , Christoph Horst KRAH , Marduke YOUSEFPOR , Thomas James WILSON
- Applicant: Apple Inc.
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06F3/044

Abstract:
A multi-stimulus controller for a multi-touch sensor is formed on a single integrated circuit (single-chip). The multi-stimulus controller includes a transmit oscillator, a transmit signal section that generates a plurality of drive signals based on a frequency of the transmit oscillator, a plurality of transmit channels that transmit the drive signals simultaneously to drive the multi-touch sensor, a receive channel that receives a sense signal resulting from the driving of the multi-touch sensor, a receive oscillator, and a demodulation section that demodulates the received sense signal based on a frequency of the receive oscillator to obtain sensing results, the demodulation section including a demodulator and a vector operator.
Public/Granted literature
- US09715306B2 Single chip multi-stimulus sensor controller Public/Granted day:2017-07-25
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