INFORMATION PROCESSING APPARATUS, PARAMETER SETTING METHOD, AND PROGRAM

• US 20120054665A1
• Filed: 06/28/2011
• Published: 03/01/2012
• Est. Priority Date: 08/30/2010
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Ohki, Yoshihito, Komori, Akihiro, Miyazaki, Reiko, KANO, Ritsuko
• Granted Patent: US 9,026,933 B2
• Time in Patent Office: Days
• US Class Current: 715/776
• CPC Class Codes: G06F 3/04847 Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text

Abstract

There is provided an information processing apparatus including a position detection unit for detecting a contact position of an operating tool which has contacted a screen, an area size detection unit for detecting a contact area size of the operating tool which has contacted the screen, a pressure detection unit for detecting a pressure of the operating tool pressing the screen, and a parameter setting unit for setting, according to the contact area size of the operating tool on an object for parameter setting displayed on the screen and the pressure of the operating tool pressing the object, a size of a parameter associated with the object.

Claims

1. An information processing apparatus comprising:

a position detection unit for detecting a contact position of an operating tool which has contacted a screen;

an area size detection unit for detecting a contact area size of the operating tool which has contacted the screen;

a pressure detection unit for detecting a pressure of the operating tool pressing the screen; and

a parameter setting unit for setting, according to the contact area size of the operating tool on an object for parameter setting displayed on the screen and the pressure of the operating tool pressing the object, a size of a parameter associated with the object.

2. The information processing apparatus according to claim 1,

wherein the parameter setting unit sets the parameter to be larger as the contact area size of the operating tool on the object for parameter setting is larger and sets the parameter to be larger as the pressure of the operating tool pressing the object is higher.

3. The information processing apparatus according to claim 2,

wherein the parameter setting unit sets, as the parameter, an amount proportional to an integral value I obtained by integrating, with respect to a time t during which the object for parameter setting is being contacted, a product S(t)*P(t) of a contact area size S(t) of the operating tool on the object and a pressure P(t) of the operating tool pressing the object.

4. The information processing apparatus according to claim 1,

wherein the object for parameter setting is provided for each colour, and

wherein the parameter is an amount of ink assumed to have been attached to the operating tool which contacted the object in a case the operating tool contacted the object for parameter setting.

5. The information processing apparatus according to claim 4, further comprising:

a drawing unit for drawing, in a case the operating tool contacts a drawing area on the screen, a dot at a contact position of the operating tool with a density according to the amount of ink assumed to have been attached to the operating tool,

wherein the parameter setting unit decreases the amount of ink assumed to have been attached to the operating tool every time a dot is drawn by the drawing unit, and

wherein the drawing unit decreases the density of a dot to be drawn in the drawing area every time the amount of ink assumed to have been attached to the operating tool is decreased.

6. The information processing apparatus according to claim 5,

wherein the drawing unit makes the dot to be drawn in the drawing area larger as the contact area size of the operating tool is larger and increases the density of the dot to be drawn in the drawing area as the pressure of the operating tool is higher, and

wherein the parameter setting unit greatly decreases the amount of ink assumed to have been attached to the operating tool as the dot drawn in the drawing area is larger and greatly decreases the amount of ink assumed to have been attached to the operating tool as the dot drawn in the drawing area is denser.

7. The information processing apparatus according to claim 6,

wherein the drawing unit decreases the density of the dot to be drawn in the drawing area as a speed of movement of the operating tool is greater.

8. The information processing apparatus according to claim 7,

wherein, in addition to the object for parameter setting provided for each colour, an object for parameter setting for deleting the dot drawn in the drawing area is provided on the screen, and

wherein, in a case the operating tool contacts the dot drawn in the drawing area after the operating tool contacts the object for parameter setting for deleting the dot, the drawing unit lightens a colour of the dot at the contact position of the operating tool or deletes the dot according to the pressure of the operating tool.

9. The information processing apparatus according to claim 1, further comprising:

a book display unit for causing a digital book having a plurality of pages to be displayed on the screen; and

a page-turning unit for turning, when an action of turning the pages is performed by the operating tool, the pages by a number of pages according to the size of a parameter set by the parameter setting unit.

10. A parameter setting method performed by an information processing apparatus including a position detection unit for detecting a contact position of an operating tool which has contacted a screen, an area size detection unit for detecting a contact area size of the operating tool which has contacted the screen, and a pressure detection unit for detecting a pressure of the operating tool pressing the screen, comprising:

setting, according to the contact area size of the operating tool on an object for parameter setting displayed on the screen and the pressure of the operating tool pressing the object, a size of a parameter associated with the object.

11. A program for causing a computer to realize:

a position detection function of detecting a contact position of an operating tool which has contacted a screen;

an area size detection function of detecting a contact area size of the operating tool which has contacted the screen;

a pressure detection function of detecting a pressure of the operating tool pressing the screen; and

a parameter setting function of setting, according to the contact area size of the operating tool on an object for parameter setting displayed on the screen and the pressure of the operating tool pressing the object, a size of a parameter associated with the object.