DISPLAY CONTROL DEVICE AND DISPLAY CONTROL METHOD

• US 20150138168A1
• Filed: 10/28/2014
• Published: 05/21/2015
• Est. Priority Date: 11/21/2013
• Status: Active Grant

• Current Assignee: Ricoh Company Limited
• Original Assignee: Ricoh Company Limited
• Inventors: NAGANO, Hiroyuki
• Granted Patent: US 9,483,128 B2
• Time in Patent Office: Days
• US Class Current: 345/179
• CPC Class Codes: G06F 2203/0384 Wireless input, i.e. hardware and software details of wireless interface arrangements for pointing devices
• CPC Class Codes: G06F 3/03545 Pens or stylus
• CPC Class Codes: G06F 3/0383 Signal control means within the pointing device
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text

Abstract

A display control device includes a display part, an indication part to indicate a position on the display part and output a value of residual electric energy thereof, a coordinate detection part to detect coordinates of the position on the display part, a rendering data production part to produce rendering data based on the coordinates of the position on the display part, a determination part to determine whether or not the value of residual electric energy is less than a threshold value, a rendering data processing part to process the rendering data to produce data for notification of electric energy reduction in a case where the determination part determines that the value of residual electric energy is less than the threshold value, and a display control part to display the rendering data and the data for notification of electric energy reduction on the display part.

Claims

1. A display control device, comprising:

a display part;

an indication part configured to indicate a position on the display part and output a value of residual electric energy thereof;

a coordinate detection part configured to detect coordinates of the position indicated by the indication part on the display part;

a rendering data production part configured to produce rendering data based on the coordinates of the position indicated by the indication part on the display part;

a determination part configured to determine whether or not the value of residual electric energy is less than a threshold value;

a rendering data processing part configured to process the rendering data to produce data for notification of electric energy reduction in a case where the determination part determines that the value of residual electric energy is less than the threshold value; and

a display control part configured to display the rendering data and the data for notification of electric energy reduction on the display part.

2. The display control device as claimed in claim 1, wherein the rendering data production part is further configured to produce the rendering data in such a manner that the rendering data include data of a rendering line, and the rendering data processing part is further configured to produce the data for notification of electric energy reduction in such a manner that the data for notification of electric energy reduction include data of a part of the rendering line and one or more blank lines in a direction parallel to a direction of the rendering line.

3. The display control device as claimed in claim 1, wherein the rendering data production part is further configured to produce the rendering data in such a manner that the rendering data include data of a rendering line, and the rendering data processing part is further configured to produce the data for notification of electric energy reduction in such a manner that the data for notification of electric energy reduction include data of a part of the rendering line and one or more blank lines in a direction orthogonal to a direction of the rendering line.

4. The display control device as claimed in claim 1, wherein the rendering data production part is further configured to produce the rendering data in such a manner that the rendering data include data of a rendering line, and the rendering data processing part is further configured to produce the data for notification of electric energy reduction in such a manner that the data for notification of electric energy reduction include data of a line with a line density less than a density of the rendering line.

5. The display control device as claimed in claim 3, wherein the rendering data processing part is further configured to produce the data for notification of electric energy reduction in such a manner that a number of the one or more blank lines is step-wise changed with respect to a time when the indication part indicates a position on the display part.

6. The display control device as claimed in claim 4, wherein the rendering data processing part is further configured to produce the data for notification of electric energy reduction in such a manner that the line density is step-wise changed with respect to a time when the indication part indicates a position on the display part.

7. The display control device as claimed in claim 1, wherein the rendering data production part is further configured to produce the rendering data in such a manner that the rendering data include data of a rendering line, and the rendering data processing part is further configured to produce the data for notification of electric energy reduction in such a manner that the data for notification of electric energy reduction include data of a line with a color different from a color of the rendering line.

8. The display control device as claimed in claim 1, further comprising:

a user recognition sensing part configured to sense that a user recognizes electric energy reduction of the indication part,

wherein the display control part is further configured to display the rendering data on the display part in a case where the user recognition sensing part senses that a user recognizes electric energy reduction of the indication part.

9. The display control device as claimed in claim 1, further comprising:

a storage part configured to store the rendering data therein.

10. A display control method, comprising:

indicating a position on a display unit by an indication unit;

outputting a value of residual electric energy of the indication unit from the indication unit;

detecting coordinates of the position indicated by the indication unit on the display unit;

producing rendering data based on the coordinates of the position indicated by the indication unit on the display unit;

determining whether or not the value of residual electric energy is less than a threshold value;

processing the rendering data to produce data for notification of electric energy reduction when determining that the value of residual electric energy is less than the threshold value; and

displaying the rendering data and the data for notification of electric energy reduction on the display unit.

11. The display control method as claimed in claim 10, wherein the rendering data are produced to include data of a rendering line, and the data for notification of electric energy reduction are produced to include data of a part of the rendering line and one or more blank lines in a direction parallel to a direction of the rendering line.

12. The display control method as claimed in claim 10, wherein the rendering data are produced to include data of a rendering line, and the data for notification of electric energy reduction are produced to include data of a part of the rendering line and one or more blank lines in a direction orthogonal to a direction of the rendering line.

13. The display control method as claimed in claim 10, wherein the rendering data are produced to include data of a rendering line, and the data for notification of electric energy reduction are produced to include data of a line with a line density less than a density of the rendering line.

14. The display control method as claimed in claim 12, wherein a number of the one or more blank lines are step-wise changed with respect to a time when the indication unit indicates a position on the display unit.

15. The display control method as claimed in claim 13, wherein the line density is step-wise changed with respect to a time when the indication unit indicates a position on the display unit.

16. The display control method as claimed in claim 10, wherein the rendering data are produced to include data of a rendering line, and the data for notification of electric energy reduction are produced to include data of a line with a color different from a color of the rendering line.

17. The display control method as claimed in claim 10, further comprising:

sensing that a user for the displaying unit and the indication unit recognizes electric energy reduction of the indication unit,

wherein the rendering data are displayed on the display unit when sensing that a user for the displaying unit and the indication unit recognizes electric energy reduction of the indication unit.

18. The display control method as claimed in claim 10, further comprising:

storing the rendering data.