Invention Grant
- Patent Title: Multipoint touch surface controller
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Application No.: US17170384Application Date: 2021-02-08
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Publication No.: US11853518B2Publication Date: 2023-12-26
- Inventor: Steven P. Hotelling , Christoph H. Krah , Brian Q. Huppi
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Kubota & Basol LLP
- The original application number of the division: US11381313 2006.05.02
- Main IPC: G06F3/044
- IPC: G06F3/044 ; G06F3/041

Abstract:
A multipoint touch surface controller is disclosed herein. The controller includes an integrated circuit including output circuitry for driving a capacitive multi-touch sensor and input circuitry for reading the sensor. Also disclosed herein are various noise rejection and dynamic range enhancement techniques that permit the controller to be used with various sensors in various conditions without reconfiguring hardware.
Public/Granted literature
- US20210240304A1 MULTIPOINT TOUCH SURFACE CONTROLLER Public/Granted day:2021-08-05
Information query