TEXT CHARACTER INPUT DEVICE AND TEXT CHARACTER INPUT METHOD

• US 20150370338A1
• Filed: 02/13/2014
• Published: 12/24/2015
• Est. Priority Date: 02/15/2013
• Status: Active Grant

• Current Assignee: DENSO Corporation
• Original Assignee: DENSO Corporation
• Inventors: NARUSE, Youichi
• Granted Patent: US 10,209,780 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 3/018 Input/output arrangements for oriental characters
• CPC Class Codes: G06F 3/0236 using selection techniques to select from displayed items
• CPC Class Codes: G06F 3/0338 with detection of limited linear or angular displacement of an operating part of the device from a neutral position, e.g. isotonic or isometric joysticks
• CPC Class Codes: G06F 3/03548 Sliders, in which the moving part moves in a plane
• CPC Class Codes: G06F 3/03549 Trackballs G06F3/03541 takes precedence
• CPC Class Codes: G06F 3/0362 with detection of 1D translations or rotations of an operating part of the device, e.g. scroll wheels, sliders, knobs, rollers or belts
• CPC Class Codes: G06F 3/04886 by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus

Abstract

A text character input device for inputting a text character selectively from text characters displayed on a display screen is provided. The text character input device includes an area storage that stores positions of areas in the display screen, a text character storage that stores inputtable text characters assigned to any of the areas, a visual line detector that detects a position of a user'"'"'s visual line in the display screen; a text character display that deploys and displays the text characters assigned to an area when the user'"'"'s visual line is present within the area; and a text character selector that selects an input text character from the displayed text characters in accordance with a user'"'"'s operation.

Claims

1. A text character input device for inputting a text character selectively from a plurality of text characters displayed on a display screen, the text character input device comprising:

an area storage that stores positions of a plurality of areas in the display screen, wherein the areas are configured on the display screen;

a text character storage that stores inputtable text characters assigned to any of the areas;

a visual line detector that detects a position of a visual line of a text character input person in the display screen, wherein the text character input person is a person attempting to input the text character;

a text character display that,

when the position of the visual line of the text character input person is present within any of the areas of the display screen,

deploys and displays in the display screen the text characters assigned to the area within which the position of the visual line of the text character input person is present; and

a text character selector that selects an input text character from the text characters displayed on the display screen in accordance with an operation performed by the text character input person.

2. The text character input device according to claim 1, wherein:

the area storage stores the plurality of areas provided with a predetermined gap therebetween in the display screen; and

the text character display displays the text characters assigned to the area in such a manner that the text characters assigned to the area do not overlap with an area adjacent to the area.

3. The text character input device according to claim 1, wherein:

the text characters assigned to an area are displayed within the area by the text character display.

4. The text character input device according to claim 1, wherein:

upon elapse of a predetermined stop time since the position of the visual line moved out of an area, the text character display stops displaying the text characters assigned to the area.

5. The text character input device according to claim 1, wherein:

upon elapse of a predetermined display time since the position of the visual line moved into an area, the text character display starts displaying the text characters assigned to the area.

6. The text character input device according to claim 4, wherein:

the text character display starts displaying the text characters assigned to an area upon elapse of a predetermined display time since the position of the visual line moved into the area, wherein the predetermined display time is shorter than the predetermined stop time.

7. The text character input device according to claim 1, wherein:

the display screen is mounted to a vehicle and visually recognizable by a driver of the vehicle; and

the visual line detector detects a position of a visual line of the driver in the display screen.

8. The text character input device according to claim 1, wherein:

when the position of the visual line of the text character input person is present within any of the areas, the text character display deploys and displays in the display screen a plurality of text characters assigned to the area in which the position of the visual line of the text character input person is present; and

from the plurality of text characters deployed in the display screen, the text character selector selects a single text character in accordance with the operation performed by the text character input person.

9. The text character input device according to claim 8, wherein:

the plurality of text characters are deployed in the display screen in accordance with the position of the text character input person'"'"'s visual line in the display screen; and

the single text character is selected by the text character selector from the plurality of deployed text characters in accordance with the text character input person'"'"'s operation of an operation knob separated from the display screen.

10. A text character input method for inputting a text character selectively from a plurality of text characters displayed on a display screen, the text character input method comprising:

detecting a position of a visual line of a text character input person in the display screen, wherein the text character input person is a person attempting to input the text character;

determining whether the position of the visual line of the text character input person is present within any of areas pre-configured on the display screen;

when the position of the visual line of the text character input person is present within any of the areas, reading out stored text characters assigned to the area within which the position of the visual line of the text character input person is present and displaying the read out text characters on the display screen; and

detecting an operation performed by the text character input person to select an input text character from the text characters displayed on the display screen.

11. The text character input method according to claim 10, wherein:

when the position of the visual line of the text character input person is present within any of the areas, a plurality of text characters assigned to the area within which the position of the visual line of the text character input person is present are deployed and displayed in the display screen; and

a single text character is selected from the plurality of text characters deployed in the display screen by detecting the operation performed by the text character input person.

12. The text character input method according to claim 11, wherein:

the plurality of text characters is deployed in the display screen in accordance with the position of the visual line of the text character input person; and

the single text character is selected from the plurality of deployed text characters in the display screen by detecting the text character input person'"'"'s operation of an operation knob separated from the display screen.