Method and apparatus for controlling image display

• US 4,574,364 A
• Filed: 11/23/1982
• Issued: 03/04/1986
• Est. Priority Date: 11/23/1982
• Status: Expired due to Term

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Okada, Yasuyuki, Machida, Tetsuo, Tabata, Kuniaki, Tsuhara, Susumu, Iwami, Hidefumi
• Primary Examiner(s): Heckler, Thomas M.
• Application Number:
  US06/443,872
• Time in Patent Office: 1,197 Days
• Field of Search: 364/200 MS File, 364/900 MS File, 364/521, 364/300, 364/200, 364/900, 340/721, 340/724, 340/726, 340/727, 340/731, 340/754
• US Class Current: 715/798
• CPC Class Codes: G09G 5/14 Display of multiple viewports

Abstract

In a method for controlling an image display apparatus having a file management table for managing information including titles of image data stored in a file memory and storage addresses therefor and a window management table for managing information including locations and sizes of windows on a display screen and quarry locations of the image data, the content of the window management table in accordance with an input command is updated so that the location and size of the window, the superposition of the windows and the scrolling of the window can be interactively changed.

Claims

1. An image display control system comprising:

a file device for storing a plurality of image data;

image display means for displaying partial areas of said image data in a plurality of windows on a display screen;

a memory containing a file management table for managing information including titles of image data stored in said file device and storage addresses therefor and a window management table for managing information including locations and sizes of the windows on the display screen, titles of the image data, window levels indicative of the order of superposition of the windows on the display screen and quarry locations of the image data in the memory;

an input device for inputting commands and data on said locations and sizes of the windows, said titles of the image data, said window levels, and the quarry locations of the image data for storage in said memory; and

a processor connected to said image display means, said memory, said input device and said file device for reading out the image data from said file device in accordance with a command indicative of execution of display inputted from said input device for controlling the display of the desired quarried images obtained from said file device in the windows of said image display means on the basis of data stored in said file management table and said window management table.

2. A method for controlling an image display apparatus having a file management table in which information including retrieval keys for image data stored in a file memory and storage addresses therefor is stored and a window management table in which information including locations and sizes of windows on a display screen, titles of the image data, window levels indicative of the order of superposition of the windows on the display screen, and quarry locations of the image data in the memory is stored, comprising:

a first step for reading in a command from an input device and decoding said command;

a second step for updating the content of said window management table in accordance with the content of said command; and

a third step for displaying the image data in a predetermined window on the display screen by referring said window management table and said file management table.

3. A method for controlling an image display apparatus according to claim 2, wherein:

in said first step, a command for creating a predetermined window and a data for designating a location and a size on the display screen of the window to be created are inputted;

in said second step, the number of windows on the display screen including the window to be created is compared with a predetermined value and if it is within the predetermined value, said input data is registered in said window management table; and

in said third step, the image data retrieved from said file device is displayed in the window having the location and the size designated by said input data.

4. A method for controlling an image display apparatus according to claim 2, wherein:

in said first step, a command for deleting a predetermined window and a data for indicating the window to be deleted are inputted;

in said second step, a flag bit in said window management table corresponding to the window to be deleted is reset; and

in said third step, the image data for the windows registered in said window management table and having flag bits thereof set are retrieved from said file device and displayed.

5. A method for controlling an image display apparatus according to claim 2, wherein:

in said first step, a command for changing a size of a predetermined window, a data for indicating said window and a data for indicating a size of the window after the change are inputted;

in a second step, a data on a size of said window registered in said window management table is changed to said input data; and

in said third step, the image data is displayed in the window having the changed size by referring said window management table and said file management table.

6. A method for controlling an image display apparatus according to claim 2, wherein:

in said first step, a command for moving a predetermined window and a data for indicating said window and a move-to location therefor are inputted;

in said second step, a data on a location of said window registered in said window management table is changed to said input data, and

in said third step, the image data is displayed in the window at the changed location by referring said window management table and said file management table.

7. A method for controlling an image display apparatus according to claim 2, wherein:

in said first step, a command for changing superposition of predetermined windows and a data for indicating the windows whose superposition is to be changed are inputted;

in said second step, ones of said window levels in said window management table corresponding to the windows whose superposition is to be changed are changed in accordance with said input data; and

in said third step, the image data are displayed in the windows in the order of window levels registered in said window management table.

8. A method for controlling an image display apparatus according to claim 2, wherein:

in said first step, a command for retrieving and displaying an image data and a data for indicating a location of rectangular area to be quarried from the image data and a window in which the quarried image data is to be displayed are inputted;

in said second step, a data on a title of image data and the quarry location for said window registered in said window management table is changed in accordance with said input data; and

in said third step, the quarried data of the image data after the change is displayed in the window designated by said input data.

9. A method for controlling an image display apparatus according to claim 2, wherein:

in said first step, a command for scrolling a predetermined window and a data for indicating said window and a new quarry location of the image data for said window are inputted;

in said second step, a data on the quarry location for said window registered in said window management table is changed in accordance with said input data; and

in said third step, the image data of the changed quarry location is displayed in the window designated by said input data.

10. A method for controlling an image display apparatus according to claim 2, wherein:

in said first step, a command for exchanging image data to be displayed, between a plurality of predetermined windows and a data for indicating said windows for the exchange are inputted;

in said second step, the image data and the quarry locations for said windows registered in said window management table are exchanged; and

in said third step, the image data are displayed in said windows by referring the changed window management table and said file management table.