Coordinates input device
A coordinates input device includes an operation unit that receives an operation input, a vibration generator that applies a vibration to the operation unit, and a vibration control unit that controls the vibration generator to apply the vibration to the operation unit when the operation input is received by the operation unit. The vibration generator includes a power feed unit provided to the operation unit, and a magnetic-field applying unit having sub-units. Each of the sub-units has first and second magnets spaced apart from each other with a given gap. The magnetic flux produced by the first and second magnets crosses a current flowing in the power feed unit.
1. A coordinates input device comprising:
an operation unit that receives an operation input;
a vibration generator that applies a vibration to the operation unit; and
a vibration control unit that controls the vibration generator to apply the vibration to the operation unit when the operation input is received by the operation unit,
the vibration generator including:
a power feed unit provided to the operation unit; and
a magnetic-field applying unit having sub-units,
each of the sub-units having first and second magnets spaced apart from each other with a given gap, a magnetic flux produced by the first and second magnets crossing a current flowing in the power feed unit, each of the sub-units being arranged under the operation unit.
2. The coordinates input device as claimed in claim 1 , wherein:
the power feed unit comprises a coil arranged along sides of the operation unit; and
the sub-units of the magnetic-field applying unit are arranged along the sides of the operation unit.
3. The coordinates input device as claimed in claim 1 , wherein:
the power feed unit comprises coils arranged along sides of the operation unit; and
the sub-units of the magnetic-field applying unit are arranged along the sides of the operation unit.
4. The coordinates input device as claimed in claim 3 , wherein each of the sub-units of the magnetic-field applying unit faces a part of a corresponding one of the coils.
5. The coordinates input device as claimed in claim 1 , wherein:
the power feed unit comprises two coils arranged along opposing sides of the operation unit; and
the sub-units of the magnetic-field applying unit are arranged along the opposing sides of the operation unit.
6. The coordinates input device as claimed in claim 1 , wherein:
the power feed unit comprises four coils arranged along four sides of the operation unit; and
the sub-units of the magnetic-field applying unit are arranged along the sides of the operation unit.
7. The coordinates input device as claimed in claim 1 , wherein:
each of the sub-units comprises a third magnet spaced apart from the second magnet with another given gap; and
another magnetic flux produced by the second and third magnets crossing the current flowing in the power feed unit.
8. The coordinates input device as claimed in claim 1 , wherein:
the power feed unit comprises coils arranged along sides of the operation unit;
the sub-units of the magnetic-field applying unit are arranged along the sides of the operation unit;
each of the sub-units comprises a third magnet spaced apart from the second magnet with another given gap; and
another magnetic flux produced by the second and third magnets crossing the current flowing in the power feed unit.
9. The coordinates input device as claimed in claim 1 , further comprising a spacer provided in the given gap.
10. The coordinates input device as claimed in claim 1 , wherein:
the power feed unit comprises coils arranged along sides of the operation unit; and
the vibration control unit supplies driving currents to the coils.
11. The coordinates input device as claimed in claim 1 , wherein the vibration control unit periodically changes a direction in which the current that flows in the power feed unit.
12. The coordinates input device as claimed in claim 1 , further comprising members that slide the operation unit.
13. The coordinates input device as claimed in claim 1 , further comprising:
members that slide the operation unit; and
a detector that detects a slide of the operation unit.
14. The coordinates input device as claimed in claim 1 , wherein the vibration control unit comprises an H-bridge circuit of transistors.
15. The coordinates input device as claimed in claim 1 , wherein the operation unit includes a touch panel.
16. The coordinates input device as claimed in claim 1 , further comprising a display unit, wherein the vibration generator is interposed between the operation unit and the display unit.
17. A vibration generator to apply vibration to an input unit of a coordinates input device, comprising:
a power feed unit coupled to and provided under the input unit;
one or more magnetic-field applying units provided under the power feed unit;
wherein each of the magnetic-field applying units includes at least first and second magnets, spaced with a gap between, to produce a magnetic flux to cross a current in the power feed unit.
18. A coordinates input device comprising:
an operation unit that receives an operation input;
a vibration generator that applies a vibration to the operation unit; and
a vibration control unit that controls the vibration generator to apply the vibration to the operation unit when the operation input is received by the operation unit,
the vibration generator including:
a power feed unit provided to the operation unit; and
a magnetic-field applying unit having sub-units,
each of the sub-units having first and second magnets spaced apart from each other with a given gap, a magnetic flux produced by the first and second magnets crossing a current flowing in the power feed unit;
wherein the power feed unit comprises two coils arranged along opposing sides of the operation unit; and
the sub-units of the magnetic-field applying unit are arranged along the opposing sides of the operation unit.
19. A coordinates input device comprising:
an operation unit that receives an operation input;
a vibration generator that applies a vibration to the operation unit; and
a vibration control unit that controls the vibration generator to apply the vibration to the operation unit when the operation input is received by the operation unit,
the vibration generator including:
a power feed unit provided to the operation unit; and
a magnetic-field applying unit having sub-units,
each of the sub-units having first and second magnets spaced apart from each other with a given gap, a magnetic flux produced by the first and second magnets crossing a current flowing in the power feed unit;
wherein the power feed unit comprises four coils arranged along four sides of the operation unit; and
the sub-units of the magnetic-field applying unit are arranged along the sides of the operation unit.
20. A coordinates input device comprising:
an operation unit that receives an operation input;
a vibration generator that applies a vibration to the operation unit; and
a vibration control unit that controls the vibration generator to apply the vibration to the operation unit when the operation input is received by the operation unit,
the vibration generator including:
a power feed unit provided to the operation unit; and
a magnetic-field applying unit having sub-units,
each of the sub-units having first and second magnets spaced apart from each other with a given gap, a magnetic flux produced by the first and second magnets crossing a current flowing in the power feed unit;
wherein each of the sub-units comprises a third magnet spaced apart from the second magnet with another given gap; and
another magnetic flux produced by the second and third magnets crossing the current flowing in the power feed unit.
21. A coordinates input device comprising:
an operation unit that receives an operation input;
a vibration generator that applies a vibration to the operation unit; and
a vibration control unit that controls the vibration generator to apply the vibration to the operation unit when the operation input is received by the operation unit,
the vibration generator including:
a power feed unit provided to the operation unit; and
a magnetic-field applying unit having sub-units,
each of the sub-units having first and second magnets spaced apart from each other with a given gap, a magnetic flux produced by the first and second magnets crossing a current flowing in the power feed unit;
wherein the power feed unit comprises coils arranged along sides of the operation unit;
the sub-units of the magnetic-field applying unit are arranged along the sides of the operation unit;
each of the sub-units comprises a third magnet spaced apart from the second magnet with another given gap; and
another magnetic flux produced by the second and third magnets crossing the current flowing in the power feed unit.
22. A coordinates input device comprising:
an operation unit that receives an operation input;
a vibration generator that applies a vibration to the operation unit; and
a vibration control unit that controls the vibration generator to apply the vibration to the operation unit when the operation input is received by the operation unit,
the vibration generator including:
a power feed unit provided to the operation unit; and
a magnetic-field applying unit having sub-units,
each of the sub-units having first and second magnets spaced apart from each other with a given gap, and a spacer provided in the given gap, a magnetic flux produced by the first and second magnets crossing a current flowing in the power feed unit.
23. A coordinates input device comprising:
an operation unit that receives an operation input;
members that slide the operation unit;
a detector that detects a slide of the operation unit;
a vibration generator that applies a vibration to the operation unit; and
a vibration control unit that controls the vibration generator to apply the vibration to the operation unit when the operation input is received by the operation unit,
the vibration generator including:
a power feed unit provided to the operation unit; and
a magnetic-field applying unit having sub-units,
each of the sub-units having first and second magnets spaced apart from each other with a given gap, a magnetic flux produced by the first and second magnets crossing a current flowing in the power feed unit.
24. A coordinates input device comprising:
an operation unit that receives an operation input;
a vibration generator that applies a vibration to the operation unit; and
a vibration control unit that controls the vibration generator to apply the vibration to the operation unit when the operation input is received by the operation unit,
the vibration generator including:
a power feed unit provided to the operation unit; and
a magnetic-field applying unit having sub-units,
each of the sub-units having first and second magnets spaced apart from each other with a given gap, a magnetic flux produced by the first and second magnets crossing a current flowing in the power feed unit;
wherein the vibration control unit comprises an H-bridge circuit of transistors.