Method, apparatus, and article for force feedback based on tension control and tracking through cables

This invention describes a device that lets a user feel virtual objects by providing force feedback. A user holds a tool connected by four cables to four separate motor-driven spools. By precisely controlling the winding and unwinding of these four cables, the system can move the tool and apply forces, simulating touch and tracking the tool's position.

Why it matters: Filed before modern VR/AR and the widespread availability of powerful, low-cost microcontrollers and precision sensors. These advancements make building and controlling such a complex haptic system more feasible and cost-effective now.

Status: ExpiredProtection ended and was never renewed
How hard to build: SpecializedMotors, spools, sensors, complex control software.

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