Walk the independent claim. Synaptics's grant US12130989B2, "System and method for touch-to-display noise mitigation" (issued October 29, 2024; inventors including Masaaki Shiomura), is a granted patent. Its CPC tags — G06F 3/04184, G06F 3/04166, G06F 3/044 — are all touch-signal-processing classes, pointing at the interference problem rather than the sensing principle.
The element that does the work is noise mitigation. A touchscreen sits directly on a display that is constantly switching pixels, and that switching couples electrical noise into the capacitive touch sensor. Left unaddressed, it produces jitter and false touches. The claim's contribution is a system and method to reject that display-induced noise so touch stays accurate during refresh.
What it reads on is the touch controller in essentially any modern phone, tablet, or laptop — Synaptics is a leading touch-and-display-driver vendor, and this is exactly the kind of enabling IP its silicon embodies. The value is invisible to the user and indispensable to the device: clean touch over a noisy display.
Scope discipline: the claim protects the recited noise-mitigation method, not capacitive touch generally. A controller that rejects display noise through a materially different scheme may operate outside it. The defensible element is the specific mitigation method claimed, not the broad goal of clean touch.
Granted status makes US12130989B2 a live consideration for any touch-controller design, particularly the integrated touch-and-display-driver (TDDI) parts where touch and display share the most silicon and the most noise. The mitigation layer is where the reliability — and the IP — concentrates.
For a strategist, the patent marks a component vendor's position in the unglamorous-but-essential noise layer. Synaptics competes on making touch reliable over increasingly integrated displays, and claims like this are the moat around that competence.