Sony patents PlayStation controller with buttons that change stiffness during gameplay

Sony has filed a patent for a new PlayStation controller whose buttons and controls can dynamically change stiffness during gameplay, according to Cheat Happens.

The patent describes the use of a magnetoviscoelastic elastomer, a material that becomes softer or harder depending on the strength of a magnetic field. Sony is also exploring an alternative approach based on fluid-filled membranes.

The goal is to make gameplay feel more immersive by allowing the controller to physically react to what's happening on screen in real time.

For example, controls could become softer when a character is moving through mud or other soft terrain, and firmer when interacting with hard surfaces or solid objects.

The patent, titled Operation device, information processing apparatus, control method thereof, and program, also describes a feature called "finger grab." In this mode, buttons can initially deform under the user's fingers before stiffening to hold their shape and improve grip.

Sony also suggests the technology could have accessibility benefits. The controller could adapt its physical controls for users who interact with games using their hands, elbows, or other assistive methods.