DISPLAY DEVICE, DISPLAY METHOD, AND PROGRAM

• US 20150185833A1
• Filed: 06/03/2013
• Published: 07/02/2015
• Est. Priority Date: 06/22/2012
• Status: Active Grant

• Current Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Original Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Inventors: Shiraishi, Seiji, Sugisaki, Haruhiko, Yamazaki, Hitoshi, Suzuki, Daisuke
• Granted Patent: US 9,411,418 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 2203/0381 Multimodal input, i.e. interface arrangements enabling the user to issue commands by simultaneous use of input devices of different nature, e.g. voice plus gesture on digitizer
• CPC Class Codes: G06F 3/002 Specific input/output arrangements not covered by G06F3/01 - G06F3/16 other optical apparatus G02B27/00
• CPC Class Codes: G06F 3/013 Eye tracking input arrangements G06F3/015 takes precedence
• CPC Class Codes: G06F 3/0485 Scrolling or panning
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures

Abstract

Information-processing device detects a visual line of a user, and displays cursor at the position viewed by the user. If the user touches a display area of an image using his/her finger while cursor is close to an edge of the display area, the position touched by the finger is recorded. When the user moves the finger, a scrolling speed is determined according to a distance the finger is moved and the image is scrolled in the direction of cursor. In a case where the position viewed by the user and a scrolling direction change, and where a line of a scrolling direction before the change crosses a line of a scrolling direction after the change, the scrolling direction changes while the scrolling speed is maintained.

Claims

1-4. -4. (canceled)

5. A display device, comprising:

a display unit having a display surface on which an image is displayed;

a first detecting unit that detects a visual line of a user;

a second detecting unit that detects an operation performed by the user on the display surface;

a direction determining unit that determines a scrolling direction of the image according to the visual line detected by the first detecting unit;

a speed determining unit that determines a scrolling speed of the image according to the operation detected by the second detecting unit; and

a display control unit that controls the display unit to scroll the image in the scrolling direction, when the scrolling direction changes and a line of a scrolling direction before the change crosses a line of a scrolling direction after the change, starts to scroll the image at the same scrolling speed as that before the scrolling direction changed, and when the scrolling direction after the change is in an opposite direction along a line of the scrolling direction before the change, starts to scroll the image at a predetermined speed or stops scrolling the image, and when the scrolling speed changes as a result of an input operation by the user, scrolls the image at a scrolling speed according to the input operation.

6. The display device according to claim 5, wherein the display control unit, when the visual line moves in a predetermined area of the display surface and then moves in a direction before the movement, starts to scroll the image faster than the scrolling speed before the visual line in the predetermined area was moved.

7. A display method, comprising the steps of:

detecting a visual line of a user;

detecting an operation performed by the user on a display surface of a display unit that displays an image;

determining a scrolling direction of the image according to the detected visual line;

determining a scrolling speed of the image according to the detected operation; and

controlling the display unit to scroll the image in the scrolling direction, when the scrolling direction changes and a line of a scrolling direction before the change crosses a line of a scrolling direction after the change, starts to scroll the image at the same scrolling speed as that before the scrolling direction changed, and when the scrolling direction after the change is in an opposite direction along a line of the scrolling direction before the change, starts to scroll the image at a predetermined speed or stops scrolling the image, and when the scrolling speed changes as a result of an input operation by the user, scrolls the image at a scrolling speed according to the input operation.

8. A program for causing a computer to execute the steps of:

detecting a visual line of a user;

detecting an operation performed by the user on a display surface of a display unit that displays an image;

determining a scrolling direction of the image according to the detected visual line;

determining a scrolling speed of the image according to the detected operation; and

controlling the display unit to scroll the image in the scrolling direction, when the scrolling direction changes and a line of a scrolling direction before the change crosses a line of a scrolling direction after the change, starts to scroll the image at the same scrolling speed as that before the scrolling direction changed, and when the scrolling direction after the change is in an opposite direction along a line of the scrolling direction before the change, starts to scroll the image at a predetermined speed or stops scrolling the image, and when the scrolling speed changes as a result of an input operation by the user, scrolls the image at a scrolling speed according to the input operation.