The Proactive Desk is a new digital desk with haptic feedback. The concept of a digital desk was proposed by Wellner in 1991 for the first time. A typical digital desk enables a user to seamlessly handle both digital and physical objects on the desk with a common GUI standard. The user, however, handles them as virtual GUI objects. Our Proactive Desk allows the user to handle both digital and physical objects on a digital desk with a realistic feeling. In the Proactive Desk, two linear induction motors are equipped to generate an omnidirectional translational force on the user's hand or on a physical object on the desk without any mechanical links or wires, thereby preserving the advantages of the digital desk. In this article, we first discuss applications of a digital desk with haptic feedback; then we mention the design and structure of the first trial Proactive Desk, and its performance.

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