Mouse pad with wire-wound induction coil

• US 20050275629A1
• Filed: 04/15/2005
• Published: 12/15/2005
• Est. Priority Date: 06/15/2004
• Status: Abandoned Application

• Current Assignee: A Four Tech Company Limited
• Original Assignee: A Four Tech Company Limited
• Inventors: Chin, Chang-Chung
• Application Number:
  US11/106,445
• Publication Number:
  US 20050275629A1
• Time in Patent Office: Days
• US Class Current: 345/163
• CPC Class Codes: G06F 3/03543 Mice or pucks G06F3/03541 takes precedence
• CPC Class Codes: G06F 3/0395 Mouse pads

Abstract

The present invention offers a mouse pad with wire-wound (WW) induction coil, which is designed for use with battery-free wireless optical mouse. Both the mouse pad and battery-free wireless optical mouse are equipped with induction coils. The features include: the mouse pad device includes a mouse pad of smooth surface and a loop induction coil placed under the smooth surface. At the inner edge of the mouse pad, the loop induction coil forms a closed-loop coil wound by an enameled wire, and there is a proper clearance or close contact between an incoming line and an outgoing line. Also, closed-loop coil is delivered in any geometrical form free of any coil within the inner space, such that a uniformly distributed electromagnetic field can be generated in the mouse pad and most effective electrodynamic force is induced by battery-free wireless optical mouse.

Claims

1. A mouse pad, well-suited for a winding mode of induction coil, comprises a battery-free wireless optical mouse and a mouse pad. And, the battery-free wireless optical mouse is available with induction coils and an inductive power supply unit, while a smooth surface of mouse pad is provided with induction coils. The features include:

the mouse pad includes a mouse pad of smooth surface and a loop induction coil placed under the smooth surface. At the inner edge of the mouse pad, the loop induction coil forms a closed-loop coil wound by an enameled wire, while an incoming line and an outgoing line gain access to the center or adjacent locations of the mouse pad from lower inner edge of the exterior of smooth surface, rather than from lower inner edge of the mouse pad. When the user places the contact surface of wireless optical mouse onto the platform of mouse pad'"'"'s close-loop induction coil, the mouse induction coil of wireless optical mouse will receive the magnetic field induced by mouse pad'"'"'s induction coil, such that the inductive power supply is made available to the battery-free wireless optical mouse.

2. A mouse pad as defined in claim 1, a proper clearance or close contact between the induction coils.

3. A mouse pad as defined in claim 1, the inner space of induction coil free of any induction coil.

4. A mouse pad as defined in claim 1, at least one cycle for the induction coil.

5. A mouse pad as defined in claim 1, one layer or more for the winding layer of induction coil.

6. A mouse pad as defined in claim 1, copper foil line of PC board provided for the induction coil.

7. A mouse pad as defined in claim 1, enameled wire provided for the induction coil.

8. A mouse pad as defined in claim 1, flat coil provided for the induction coil.

9. A mouse pad as defined in claim 1, the induction coil is available in any closed geometrical form, including circle, oval, square, rectangle, polygon and random shapes.