Human interactive type display system

• US 6,683,628 B1
• Filed: 05/11/2000
• Issued: 01/27/2004
• Est. Priority Date: 01/10/1997
• Status: Expired due to Term

• Current Assignee: Godo Kaisha IP Bridge 1 (IP Bridge, Inc.)
• Original Assignee: Tokyo University of Agriculture and Technology
• Inventors: Oguni, Tsuyoshi, Nakagawa, Masaki
• Primary Examiner(s): CHANG, KENT WU
• Application Number:
  US09/568,982
• Time in Patent Office: 1,356 Days
• Field of Search: 345/438, 345/121, 345/123, 345/173, 345/676, 345/672, 345/682, 345/684, 345/784, 345/786, 345/781, 345/798, 345/799, 345/680
• US Class Current: 715/799
• 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

A human interactive type dynamic display system including an electronic whiteboard, a pen-like member for marking a point on the whiteboard, and a computer for controlling an image displayed on the whiteboard. On the whiteboard, there is defined an operation region such as a scroll operation region extending along a periphery of the whiteboard. When a user points any point within the scroll operation region with the aid of the pen-like member as a start point, an enable signal for initiating the scroll operation is produced. Then, the displayed image is scrolled in a direction by a distance which are derived by processing a direction and an amount of a dragging operation of the pen-like member on the whiteboard from the start point. Not only the scroll operation, page up and down operation, window shift operation and count value changing operation can be performed in a similar manner.

Claims

1. A human interactive type image display system comprising:

a display means having a display panel on which an image is displayed, said display panel having a predetermined operation region;

a marking means for pointing a point on said display panel; and

a controlling means for detecting a marking operation of a user by said marking means for a point within said operation region in the display panel to produce an enable signal and coordinates of points on the display panel pointed by said marking means successively from said point within the operation region to produce a position signal during a marking operation of the user, processing said enable signal and position signal to detect a direction and a distance of a movement of said marking operation of the user and controlling the image displayed on the display panel in accordance with said detected direction and distance of the movement of the marking operation to perform a desired functionality in a human interactive manner, wherein said display means comprises an electronic whiteboard, said marking means comprises a pen-like member which is brought into contact with a display panel of the electronic whiteboard for marking a point on said display panel, and said enable signal is generated by processing a contact signal representing a contact condition of the pen-like member to the point within said operation region in the display panel, said display system for performing a window shift functionality for shifting a window displayed on the display panel, wherein the window displayed on the display panel is shifted in a direction over a distance which are defined by the direction and amount of the movement of the pen-like member on the display panel during the marking operation of the user such that a position of said window after shifting is different from a position at which said pen-like member is penned up from the display panel and said distance over which said window is moved is larger than said distance over which said pen-like member is moved.

2. A display system according to claim 1, wherein said operation region is set to a tool bar of the window.

3. A display system according to claim 1, wherein said controlling means derives the direction and the distance of a window shift operation during the marking operation by effecting a calculation of [(x_now−

x_prev)×

k, (y_now−

y_prev)×

k], where x_prev and y_prev are x and y coordinates of a start contact point, x_now and y_now are x and y coordinates of a current contact point and k is a coefficient.

4. A display system according to claim 1, wherein during the window shift operation, a segment is displayed on the display panel of the whiteboard, said segment connecting a tip of the pen-like member to a predetermined point of the window.

5. A display system according to claim 3, wherein said coefficient k is larger than 1.0.

6. A display system according to claim 3, wherein said operation region is set to a tool bar of the window.

7. A display system according to claim 2, wherein during the window shift operation, a segment is displayed on the display panel of the whiteboard, said segment connecting a tip of the pen-like member to a predetermined point of the window.

8. A display system according to claim 3, wherein during the window shift operation, a segment is displayed on the display panel of the whiteboard, said segment connecting a tip of the pen-like member to a predetermined point of the window.

9. A human interactive type image display system comprising:

a display means having a display panel on which an image is displayed, said display panel having a predetermined operation region;

a marking means for pointing a point on said display panel; and

a controlling means for detecting a marking operation of a user by said marking means for a point within said operation region in the display panel to produce an enable signal and coordinates of points on the display panel pointed by said marking means successively from said point within the operation region to produce a position signal during a marking operation of the user, processing said enable signal and position signal to detect a direction and a distance of a movement of said marking operation of the user and controlling the image displayed on the display panel in accordance with said detected direction and distance of the movement of the marking operation to perform a desired functionality in a human interactive manner, wherein said display means comprises an electronic whiteboard, said marking means comprises a pen-like member which is brought into contact with a display panel of the electronic whiteboard for marking a point on said display panel, and said enable signal is generated by processing a contact signal representing a contact condition of the pen-like member to the point within said operation region in the display panel, said display system for performing a window shift functionality for shifting a window displayed on the display panel, wherein the window displayed on the display panel is shifted in a direction over a distance which are defined by the direction and amount of the movement of the pen-like member on the display panel during the marking operation of the user, wherein said controlling means derives the direction and the distance of a window shift operation during the marking operation by effecting a calculation of [(x_now−

x_prev)×

k, (y_now−

y_prev)×

k], where x_prev and y_prev are x and y coordinates of a start contact point, x_now and y_now are x and y coordinates of a current contact point and k is a coefficient and said controlling means detects a velocity of the movement of the pen-like member and said coefficient k is changed in proportion to the decreased velocity.