Pointing apparatus using piezoelectric film, method for producing the apparatus, apparatus and method for detecting pointing information thereof
First Claim
1. A pointing apparatus using a piezoelectric film, the apparatus comprising:
- a plurality of first strips arranged in a first direction at a first predetermined interval, each of which is extended in a second direction perpendicular to the first direction and at least some of the plurality of first strips is touched when a pointer is moved in the first direction; and
a plurality of second strips, which are lapped over the plurality of the first strips and arranged in the second direction at a second predetermined interval, each of which is extended in the first direction and at least some of the plurality of second strips is touched when the pointer is moved in the second direction, wherein each of the first and second strips generates electric charges in a quantity corresponding to pressure applied when a respective one of each of the first and second strips is touched and outputs touch signals having levels corresponding to the quantity of the electric charges, and moving direction and amount of movement of the pointer are determined by the number of times and the order in which the touch signals are generated.
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Accused Products
Abstract
A pointing apparatus using a piezoelectric film, a method for producing the apparatus, and apparatus and method for detecting pointing information therefor are provided. The pointing apparatus includes a plurality of first strips arranged in a first direction at a first predetermined interval, each of which is extended in a second direction perpendicular to the first direction and is touched when a pointer is moved in the first direction, and a plurality of second strips, which are lapped over the plurality of the first strips and arranged in the second direction at a second predetermined interval, each of which is extended in the first direction and is touched when the pointer is moved in the second direction. Each of the first and second strips generates electric charges in a quantity corresponding to pressure applied by a user and outputs touch signals having levels corresponding to the quantity of the electric charges, and moving direction and amount of movement of the pointer are determined by the number of times and the order in which the touch signals are generated. The pointing apparatus can be folded and thus is convenient to carry, can input pointing information by using the part of the human body, for example, finger(s) without a special tool such as a ball or pen, and thus is convenient to use and its manufacturing costs can be reduced.
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Citations
14 Claims
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1. A pointing apparatus using a piezoelectric film, the apparatus comprising:
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a plurality of first strips arranged in a first direction at a first predetermined interval, each of which is extended in a second direction perpendicular to the first direction and at least some of the plurality of first strips is touched when a pointer is moved in the first direction; and
a plurality of second strips, which are lapped over the plurality of the first strips and arranged in the second direction at a second predetermined interval, each of which is extended in the first direction and at least some of the plurality of second strips is touched when the pointer is moved in the second direction, wherein each of the first and second strips generates electric charges in a quantity corresponding to pressure applied when a respective one of each of the first and second strips is touched and outputs touch signals having levels corresponding to the quantity of the electric charges, and moving direction and amount of movement of the pointer are determined by the number of times and the order in which the touch signals are generated. - View Dependent Claims (2, 5, 6, 7, 8, 9, 10, 11, 12)
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3. A method for producing a pointing apparatus using a piezoelectric film, the apparatus comprising a plurality of first strips arranged in a first direction at a first predetermined interval, each of which is extended in a second direction perpendicular to the first direction and at least some of the plurality of first strips is touched when a pointer is moved in the first direction;
- and a plurality of second strips, which are lapped over the plurality of the first strips and arranged in the second direction at a second predetermined interval, each of which is extended in the first direction and at least some of the plurality of second strips is touched when the pointer is moved in the second direction, wherein each of the first and second strips generates electric charges in a quantity corresponding to pressure applied when a respective one of each of the first and second strips is touched and outputs touch signals having levels corresponding to the quantity of the electric charges, and moving direction and amount of movement of the pointer are determined by the number of times and the order in which the touch signals are generated, the method comprising the steps of;
forming part of the first strips in a first layer, forming the remainder of the first strips in a second layer, forming part of the second strips in a third layer, and forming the remainder of the second strips in a fourth layer;
interlacing the second layer with the first layer to form the first strips in a common layer, and interlacing the fourth layer with the third layer to form the second strips in another common layer;
lapping the common layer having the first strips over the common layer having the second strips so that the first strips perpendicularly intersect the second strips; and
housing the lapped-over layers.
- and a plurality of second strips, which are lapped over the plurality of the first strips and arranged in the second direction at a second predetermined interval, each of which is extended in the first direction and at least some of the plurality of second strips is touched when the pointer is moved in the second direction, wherein each of the first and second strips generates electric charges in a quantity corresponding to pressure applied when a respective one of each of the first and second strips is touched and outputs touch signals having levels corresponding to the quantity of the electric charges, and moving direction and amount of movement of the pointer are determined by the number of times and the order in which the touch signals are generated, the method comprising the steps of;
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4. A method for producing a pointing apparatus using a piezoelectric film, the apparatus comprising a plurality of first strips arranged in a first direction at a first predetermined interval, each of which is extended in a second direction perpendicular to the first direction and at least some of the plurality of first strips is touched when a pointer is moved in the first direction;
- and a plurality of second strips, which are lapped over the plurality of the first strips and arranged in the second direction at a second predetermined interval, each of which is extended in the first direction and at least some of the plurality of second strips is touched when the pointer is moved in the second direction, wherein each of the first and second strips generates electric charges in a quantity corresponding to pressure applied when a respective one of each of the first and second strips is touched and outputs touch signals having levels corresponding to the quantity of the electric charges, and moving direction and amount of movement of the pointer are determined by the number of times and the order in which the touch signals are generated, the method comprising the steps of;
forming all the first strips in a fifth layer and forming all the second strips in a sixth layer;
lapping the fifth layer over the sixth layer so that the first strips perpendicularly intersect the second strips; and
housing the lapped-over layers.
- and a plurality of second strips, which are lapped over the plurality of the first strips and arranged in the second direction at a second predetermined interval, each of which is extended in the first direction and at least some of the plurality of second strips is touched when the pointer is moved in the second direction, wherein each of the first and second strips generates electric charges in a quantity corresponding to pressure applied when a respective one of each of the first and second strips is touched and outputs touch signals having levels corresponding to the quantity of the electric charges, and moving direction and amount of movement of the pointer are determined by the number of times and the order in which the touch signals are generated, the method comprising the steps of;
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13. A method for detecting pointing information of a pointing apparatus using a piezoelectric film, the apparatus comprising a plurality of first strips arranged in a first direction at a first predetermined interval, each of which is extended in a second direction perpendicular to the first direction and at least some of the plurality of first strips is touched when a pointer is moved in the first direction;
- and a plurality of second strips, which are lapped over the plurality of the first strips and arranged in the second direction at a second predetermined interval, each of which is extended in the first direction and at least some of the plurality of second strips is touched when the pointer is moved in the second direction, wherein each of the first and second strips generates electric charges in a quantity corresponding to pressure applied when a respective one of each of the first and second strips is touched and outputs touch signals having levels corresponding to the quantity of the electric charges, and moving direction and amount of movement of the pointer are determined by the number of times and the order in which the touch signals are generated, the method comprising the steps of;
(a) converting the touch signals generated from the first strips into first square waves to obtain the first information signals and converting the touch signals generated from the second strips into second square waves to obtain the second information signals; and
(b) checking the order in which the first and second information signals are generated and detecting the components of the first and second directions from the checked order. - View Dependent Claims (14)
- and a plurality of second strips, which are lapped over the plurality of the first strips and arranged in the second direction at a second predetermined interval, each of which is extended in the first direction and at least some of the plurality of second strips is touched when the pointer is moved in the second direction, wherein each of the first and second strips generates electric charges in a quantity corresponding to pressure applied when a respective one of each of the first and second strips is touched and outputs touch signals having levels corresponding to the quantity of the electric charges, and moving direction and amount of movement of the pointer are determined by the number of times and the order in which the touch signals are generated, the method comprising the steps of;
Specification