Position pointing device, system and method employing AC field
AssigneeWacom Co., Ltd.
InventorsYasuhiro Fukuzaki, Yuji Katsurahira
Life of this patent
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Abstract
Detailed information about plural factors determining a color and the coordinate value of a pointed position are determined from a position pointing device. The detailed information about the plural colors is by factors such as detailed gradation information on basic colors such as red, green, and blue. The amplitude or frequency of an AC field is controlled in accordance with the set color information. The AC field has a spatial distribution corresponding to the coordinate value of the pointed position.
Claims30
A position pointing device for deriving a coordinate value of a pointed position and information concerning a color by exchanging an AC field with a position detecting device, said position pointing device comprising:
- means for generating an AC field having a spatial distribution corresponding to the coordinate value of the pointed position relative to the position detecting device and an amplitude or frequency responsive to an external control;
- color information setting means for setting detailed information related to plural factors defining a particular color;
- control means for controlling said AC field generating means in accordance with said detailed information;
- and
- power supplying means for supplying power to component units of the position pointing device.
A position pointing device for deriving a coordinate value of a pointed position and information concerning a color by exchanging an AC field with a position detecting device, said position pointing device comprising:
- means for generating an AC field having a spatial distribution corresponding to the coordinate value of the pointed position relative to the position detecting device and an amplitude or frequency responsive to an external control;
- color information setting means for setting detailed information related to plural factors defining a particular color;
- control means for controlling said AC field generating means in time series in accordance with said detailed information;
- and
- power supplying means for supplying power to component units of the position pointing device.
A position pointing device for deriving a coordinate value of a pointed position and information concerning a color by exchanging an AC field with a position detecting device, said position pointing device comprising:
- means for generating an AC field having a spatial distribution corresponding to the coordinate value of the pointed position relative to the position detecting device and an amplitude or frequency responsive to an external control;
- color information setting means for setting a plurality of bits of binary code expressing detailed information related to a plurality of factors defining a particular color;
- control means for controlling said AC field generating means in time series in accordance with said plurality of bits of binary code;
- and
- power supplying means for supplying power to component units of the position pointing device.
A method of supplying a position detecting device with a coordinate value of a pointed position of a position pointing device and information concerning a selected color associated with the position pointing device on the position detecting device comprising:
- generating on the position pointing device an AC field having a spatial distribution corresponding to the coordinate value of the pointed position relative to the position detecting device derived on the position pointing device;
- setting controllers on the position pointing device with detailed information related to plural factors defining a particular color;
- and
- controlling the amplitude or frequency of said AC field in accordance with the plural factors defining the particular color.
In combination,
- a position pointing device for deriving a coordinate value of a pointed position and information concerning a color, and
- a position detecting device,
- said position pointing device comprising:
- (a) means for generating an AC field having a spatial distribution corresponding to the coordinate value of the pointed position relative to the position detecting device;
- (b) color information setting means for setting detailed information related to plural factors defining a particular color;
- (c) control means for controlling the amplitude or frequency of said AC field generating means in accordance with said detailed information;
- and
- (d) power supplying means for supplying power to component units of the position pointing device,
- the position detecting device including:
- means responsive to the AC field for deriving signals indicative of (i) the position of the position pointing device relative to the position detecting device and (ii) the plural factors defining the particular color.
A position pointing device for deriving a coordinate value of a pointed position and information concerning a parameter by exchanging an AC field with a position detecting device, said position pointing device comprising:
- means for generating an AC field having a spatial distribution corresponding to the coordinate value of the pointed position relative to the position detecting device;
- parameter information setting means for setting detailed information related to plural factors defining a particular parameter;
- control means for controlling the amplitude or frequency of said AC field derived by the means for generating in accordance with the plural factors defining the particular parameter;
- and
- power supplying means for supplying power to component units of the position pointing device.
Dependencies are inferred from the claim text.