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.

“Driving a display of an input-display device includes generating, during a first display frame, a first touch sensing waveform to be applied to a touch screen of the display, and generating, during a second display frame, a second touch sensing waveform to be applied to the touch screen.”— U.S. Patent No. 12,130,989 source

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.