Presentation device and display method

• US 20050243073A1
• Filed: 12/27/2004
• Published: 11/03/2005
• Est. Priority Date: 04/28/2004
• Status: Abandoned Application

• Current Assignee: Elmo Co., Ltd. (TECHNO HORIZON Co., Ltd.)
• Original Assignee: Elmo Co., Ltd. (TECHNO HORIZON Co., Ltd.)
• Inventors: Hashimoto, Susumu, Kojima, Mikihiro
• Application Number:
  US11/022,996
• Publication Number:
  US 20050243073A1
• Time in Patent Office: Days
• US Class Current: 345/184
• CPC Class Codes: G09G 2320/0686 with two or more screen areas displaying information with different brightness or colours
• CPC Class Codes: H04N 1/00236 using an image reading or reproducing device, e.g. a facsimile reader or printer, as a local input to or local output from a computer image input to or image output from a computer via a network H04N1/00209
• CPC Class Codes: H04N 1/00424 using a list of graphical elements, e.g. icons or icon bar
• CPC Class Codes: H04N 1/00432 using tabs
• CPC Class Codes: H04N 1/0044 for image preview or review, e.g. to help the user position a sheet
• CPC Class Codes: H04N 1/00469 with enlargement of a selected area of the displayed information
• CPC Class Codes: H04N 1/10 using flat picture-bearing surfaces H04N1/113, H04N1/195 take precedence
• CPC Class Codes: H04N 1/195 the array comprising a two-dimensional array or a combination of two-dimensional arrays
• CPC Class Codes: H04N 1/19594 using a television camera or a still video camera
• CPC Class Codes: H04N 2201/0081 Image reader H04N2201/0091 - H04N2201/0094 take precedence
• CPC Class Codes: H04N 2201/0436 Scanning a picture-bearing surface lying face up on a support H04N2201/0434 takes precedence; using cylindrical picture bearing surfaces H04N1/06; with manual scanning H04N1/107
• CPC Class Codes: H04N 23/62 Control of parameters via user interfaces
• CPC Class Codes: H04N 23/69 Control of means for changing angle of the field of view, e.g. optical zoom objectives or electronic zooming

Abstract

Upon certain operations by a user, the presentation device displays a zoom window ZW in an image. The user moves the zoom window ZW by moving a mouse 19, so as to indicate a desired area in the image. When the desired area is indicated by the user, the presentation device magnifies and displays the area in the zoom window ZW. The area H in the zoom window is displayed with relatively higher brightness than other areas. As a result, the presentation device of the invention allows the location of the magnified area to be readily indicated while previewed.

Claims

1. A presentation device allowing images, that have been obtained upon the projection of materials by a camera, to be displayed on a connected display device, the presentation device comprising:

a pointing device for indicating locations;

operation detecting unit that detects the pointing device operations;

window display unit that moves according to the moving operations of the pointing device and allows a window for showing part of the area in the image to be displayed in the image; and

magnifying display unit that, on the basis of certain operations, magnifies and displays the area shown in the window, which is the part of the area in the image projected by the camera and displayed on the display device.

2. A presentation device according to claim 1, further comprising:

cursor display unit that makes a cursor move according to the moving operations of the pointing device to be displayed on the image, wherein

the window display unit displays a window based on the cursor position, in such a way that the relative position of the cursor in the coordinate system in the image and the relative position of the cursor in the coordinate system in the window are the same.

3. A presentation device according to claim 1 or 2, wherein:

the window display unit displays the window by increasing the brightness of the part of the area in the image.

4. A presentation device according to claim 1, wherein the window display unit displays the window by lowering the brightness of the parts other than the part of the area in the image.

5. A presentation device according to claim 1, wherein the magnifying display unit magnifies image data projected by the camera, so as to magnify and display the area shown in the window.

6. A presentation device according to claim 1, wherein

the camera comprises a zoom mechanism capable of optically magnifying and projecting the materials, wherein

the magnifying display unit controls the zoom mechanism to magnify and project the area shown in the window, and displays the magnified projected image.

7. A magnifying display method for projecting materials on a presentation device comprising a camera, the method comprising the steps of:

producing images by projecting materials using the camera;

displaying the images on a connected display device;

detecting the operation of a pointing device for indicating locations;

displaying in the image a window that moves with the moving operation of the pointing device and shows a part of the area in the image; and

using certain operations to magnify and display the area shown in the window, which is the part of the area in the image projected by the camera and displayed on the display device.