This publication describes a method for capacitive touch screen to detect finger press action with certain force to trigger specific operation system (OS) or application (App) response on consumer electronic devices. The new finger force press detection mechanism is software base solution with AI machine learning algorithm, which can save enormous hardware cost on force sensing technique on capacitive touch screen.
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INC, HP, "AI BASED FORCE SENSING TOUCH SCREEN", Technical Disclosure Commons, (January 17, 2023)