Computer-readable storage medium, coordinate processing apparatus, coordinate processing system, and coordinate processing method

• US 8,773,382 B2
• Filed: 03/12/2012
• Issued: 07/08/2014
• Est. Priority Date: 10/28/2011
• Status: Active Grant

• Current Assignee: Nintendo Company Limited
• Original Assignee: Nintendo Company Limited
• Inventors: Ohta, Keizo
• Primary Examiner(s): HALEY, JOSEPH R
• Application Number:
  US13/417,794
• Publication Number:
  US 20130106729A1
• Time in Patent Office: 848 Days
• Field of Search: None
• US Class Current: 345/173
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: G06V 30/347 Sampling; Contour coding; Stroke extraction

Abstract

A following coordinate which follows an input coordinate late is calculated. Then, an inference moving amount is calculated on the basis of a moving amount of an input coordinate, and an inference moving direction is calculated on the basis of a moving direction of the following coordinate. An inference movement vector is set on the basis of the inference moving amount and inference moving direction calculated thus. The following coordinate has low correlation with an actual moving amount of a finger of an operator, and the moving direction of the input coordinate has low correlation with an actual moving direction of the finger of the operator due to fluctuation of the input coordinate. Thus, the inference movement vector which is set as described above more accurately reflects the actual moving amount and moving direction of the finger of the operator.

Claims

1. A non-transitory computer-readable storage medium having stored therein a coordinate processing program for processing input coordinate data outputted from a coordinate input device, the coordinate processing program causing a computer to operate as:

a second coordinate series calculator configured to calculate, on the basis of a first coordinate series indicated by the input coordinate data, a second coordinate series which represents an input trajectory having a shape smoother than a shape of an input trajectory represented by the first coordinate series;

a moving amount calculator configured to calculate a moving amount of a coordinate on the basis of the first coordinate series;

a moving direction calculator configured to calculate a moving direction of the coordinate on the basis of the second coordinate series; and

a processing section configured to perform predetermined processing by using the moving amount calculated by the moving amount calculator and the moving direction calculated by the moving direction calculator,

wherein the moving direction calculator calculates the moving direction on the basis of a direction of a straight line connecting a latest coordinate of the second coordinate series to a coordinate immediately previous to the latest coordinate.

2. The non-transitory computer-readable storage medium according to claim 1, wherein the moving amount calculator calculates the moving amount on the basis of at least a distance between a latest coordinate of the first coordinate series and a coordinate immediately previous to the latest coordinate.

10. The non-transitory computer-readable storage medium according to claim 1, wherein the processing section performs the predetermined processing in real time in accordance with output of the input coordinate data from the coordinate input device.

3. A non-transitory computer-readable storage medium having stored therein a coordinate processing program for processing input coordinate data outputted from a coordinate input device, the coordinate processing program causing a computer to operate as:

a second coordinate series calculator configured to calculate, on the basis of a first coordinate series indicated by the input coordinate data, a second coordinate series which represents an input trajectory having a shape smoother than a shape of an input trajectory represented by the first coordinate series;

a moving amount calculator configured to calculate a moving amount of a coordinate on the basis of the first coordinate series;

a moving direction calculator configured to calculate a moving direction of the coordinate on the basis of the second coordinate series; and

a processing section configured to perform predetermined processing by using the moving amount calculated by the moving amount calculator and the moving direction calculated by the moving direction calculator,

wherein the second coordinate series calculator calculates, as a coordinate of the second coordinate series, a following coordinate which follows a target coordinate which is set on the basis of the input coordinate data.

4. The non-transitory computer-readable storage medium according to claim 3, wherein the second coordinate series calculator calculates, as a coordinate of the second coordinate series, a following coordinate which follows the target coordinate at a predetermined rate.

5. The non-transitory computer-readable storage medium according to claim 3, wherein the second coordinate series calculator updates the following coordinate at all times such that the following coordinate approaches the target coordinate by a predetermined rate of a distance from the following coordinate to the target coordinate.

6. The non-transitory computer-readable storage medium according to claim 3, wherein the target coordinate is an allowance coordinate which, when being distant from an input coordinate indicated by the input coordinate data by more than a predetermined distance, moves toward the input coordinate so as to be located at a position away from the input coordinate by the predetermined distance.

7. A non-transitory computer-readable storage medium having stored therein a coordinate processing program for processing input coordinate data outputted from a coordinate input device, the coordinate processing program causing a computer to operate as:

a second coordinate series calculator configured to calculate, on the basis of a first coordinate series indicated by the input coordinate data, a second coordinate series which represents an input trajectory having a shape smoother than a shape of an input trajectory represented by the first coordinate series;

a moving amount calculator configured to calculate a moving amount of a coordinate on the basis of the first coordinate series;

a moving direction calculator configured to calculate a moving direction of the coordinate on the basis of the second coordinate series; and

a processing section configured to perform predetermined processing by using the moving amount calculated by the moving amount calculator and the moving direction calculated by the moving direction calculator,

wherein the processing section includes a movement vector generator configured to generate a movement vector indicating a moving amount and a moving direction of a coordinate, by using the moving amount calculated by the moving amount calculator and the moving direction calculated by the moving direction calculator.

8. The non-transitory computer-readable storage medium according to claim 7, wherein the processing section includes a third coordinate series calculator configured to calculate a third coordinate series by using the moving amount calculated by the moving amount calculator and the moving direction calculated by the moving direction calculator.

9. The non-transitory computer-readable storage medium according to claim 7, wherein the processing section includes a coordinate complementation section configured to complement the input coordinate data by using the moving amount calculated by the moving amount calculator and the moving direction calculated by the moving direction calculator, when output of the input coordinate data from the coordinate input device is temporarily interrupted.

11. A coordinate processing apparatus for processing input coordinate data outputted from a coordinate input device, the coordinate processing apparatus comprising:

a second coordinate series calculator configured to calculate, on the basis of a first coordinate series indicated by the input coordinate data, a second coordinate series which represents an input trajectory having a shape smoother than a shape of an input trajectory represented by the first coordinate series;

a moving amount calculator configured to calculate a moving amount of a coordinate on the basis of the first coordinate series;

a moving direction calculator configured to calculate a moving direction of the coordinate on the basis of the second coordinate series; and

a processing section configured to perform predetermined processing by using the moving amount calculated by the moving amount calculator and the moving direction calculated by the moving direction calculator,

wherein the moving direction calculator is further configured to calculate the moving direction on the basis of a direction of a straight line connecting a latest coordinate of the second coordinate series to a coordinate immediately previous to the latest coordinate.

12. A coordinate processing system for processing input coordinate data outputted from a coordinate input device, the coordinate processing system comprising:

a second coordinate series calculator configured to calculate, on the basis of a first coordinate series indicated by the input coordinate data, a second coordinate series which represents an input trajectory having a shape smoother than a shape of an input trajectory represented by the first coordinate series;

a moving amount calculator configured to calculate a moving amount of a coordinate on the basis of the first coordinate series;

a moving direction calculator configured to calculate a moving direction of the coordinate on the basis of the second coordinate series; and

a processing section configured to perform predetermined processing by using the moving amount calculated by the moving amount calculator and the moving direction calculated by the moving direction calculator,

wherein the moving direction calculator is further configured to calculate the moving direction on the basis of a direction of a straight line connecting a latest coordinate of the second coordinate series to a coordinate immediately previous to the latest coordinate.

13. A coordinate processing apparatus for processing input coordinate data outputted from a coordinate input device, the coordinate processing apparatus comprising:

processing resources that include at least one processor;

a second coordinate series calculator configured to calculate, by using the processing resources and on the basis of a first coordinate series indicated by the input coordinate data, a second coordinate series which represents an input trajectory having a shape smoother than a shape of an input trajectory represented by the first coordinate series;

a moving amount calculator configured to calculate, by using the processing resources, a moving amount of a coordinate on the basis of the first coordinate series;

a moving direction calculator configured to calculate, by using the processing resources, a moving direction of the coordinate on the basis of the second coordinate series; and

a processing section configured to perform, by using the processing resources, predetermined processing by using the moving amount calculated by the moving amount calculator and the moving direction calculated by the moving direction calculator,

wherein the second coordinate series is further configured to calculate, as a coordinate of the second coordinate series, a following coordinate which follows a target coordinate which is set on the basis of the input coordinate data.

14. A coordinate processing system for processing input coordinate data outputted from a coordinate input device, the coordinate processing system comprising:

at least one processor;

a second coordinate series calculator configured to, by using the at least one processor calculate, on the basis of a first coordinate series indicated by the input coordinate data, a second coordinate series which represents an input trajectory having a shape smoother than a shape of an input trajectory represented by the first coordinate series;

a moving amount calculator configured to, by using the at least one processor, calculate a moving amount of a coordinate on the basis of the first coordinate series;

a moving direction calculator configured to, by using the at least one processor, calculate a moving direction of the coordinate on the basis of the second coordinate series; and

a processing section configured to, by using the at least one processor, perform predetermined processing by using the moving amount calculated by the moving amount calculator and the moving direction calculated by the moving direction calculator,

wherein the second coordinate series calculator is further configured to calculate, as a coordinate of the second coordinate series, a following coordinate which follows a target coordinate which is set on the basis of the input coordinate data.

15. A coordinate processing apparatus for processing input coordinate data outputted from a coordinate input device, the coordinate processing apparatus comprising:

a second coordinate series calculator configured to calculate, on the basis of a first coordinate series indicated by the input coordinate data, a second coordinate series which represents an input trajectory having a shape smoother than a shape of an input trajectory represented by the first coordinate series;

a moving amount calculator configured to calculate a moving amount of a coordinate on the basis of the first coordinate series;

a moving direction calculator configured to calculate a moving direction of the coordinate on the basis of the second coordinate series; and

a processing section configured to perform predetermined processing by using the moving amount calculated by the moving amount calculator and the moving direction calculated by the moving direction calculator,

wherein the processing section includes a movement vector generator configured to generate a movement vector indicating a moving amount and a moving direction of a coordinate, by using the moving amount calculated by the moving amount calculator and the moving direction calculated by the moving direction calculator.

16. A coordinate processing system for processing input coordinate data outputted from a coordinate input device, the coordinate processing system comprising:

a second coordinate series calculator configured to calculate, on the basis of a first coordinate series indicated by the input coordinate data, a second coordinate series which represents an input trajectory having a shape smoother than a shape of an input trajectory represented by the first coordinate series;

a moving amount calculator configured to calculate a moving amount of a coordinate on the basis of the first coordinate series;

a moving direction calculator configured to calculate a moving direction of the coordinate on the basis of the second coordinate series; and

a processing section configured to perform predetermined processing by using the moving amount calculated by the moving amount calculator and the moving direction calculated by the moving direction calculator,

wherein the processing section includes a movement vector generator configured to generate a movement vector indicating a moving amount and a moving direction of a coordinate, by using the moving amount calculated by the moving amount calculator and the moving direction calculated by the moving direction calculator.