Display apparatus having a scroll feature
First Claim
Patent Images
1. A display apparatus, comprising:
- a display memory for storing an image of a first area forming a portion of an entire image;
a display section including a display screen having a display area usable for displaying at least a partial image of the first area;
a case for exposing the display screen;
scroll means for moving a display screen area appearing on the display screen over the entire image in accordance with a movement of the case;
control means for providing a virtual memory for storing an image of a second area having a size greater than the size of the first area in the entire image when the scroll means moves the display screen area beyond the first area; and
a table of management states of the virtual memory area in a respective memory device, in which the table of management states includes a listing representative of a plurality of virtual memory areas and an identification, a memory device name, an image file name, and an image file size for each of the virtual memory areas.
2 Assignments
0 Petitions
Accused Products
Abstract
A display apparatus includes a display memory for storing an image of a first area forming a portion of an entire image; a display section including a display screen having a display area usable for displaying at least a partial image of the first area; a case for exposing the display screen; a scroll unit operable to move a display screen area appearing on the display screen over the image in accordance with a movement of the case; and a controller operable to provide a virtual memory area for storing an image of a second area having a size greater than the size of the first area in the image when the scroll unit moves the display screen area beyond the first area.
18 Citations
15 Claims
-
1. A display apparatus, comprising:
-
a display memory for storing an image of a first area forming a portion of an entire image; a display section including a display screen having a display area usable for displaying at least a partial image of the first area; a case for exposing the display screen; scroll means for moving a display screen area appearing on the display screen over the entire image in accordance with a movement of the case; control means for providing a virtual memory for storing an image of a second area having a size greater than the size of the first area in the entire image when the scroll means moves the display screen area beyond the first area; and a table of management states of the virtual memory area in a respective memory device, in which the table of management states includes a listing representative of a plurality of virtual memory areas and an identification, a memory device name, an image file name, and an image file size for each of the virtual memory areas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A display apparatus, comprising:
-
a display memory for storing an image of a first area forming a portion of an entire image; a display section including a display screen having a display area usable for displaying at least a partial image of the first area; a case for exposing the display screen; a scroll unit operable to move a display screen area appearing on the display screen over the entire image in accordance with a movement of the case; a controller operable to provide a virtual memory for storing an image of a second area having a size greater than the size of the first area in the entire image when the scroll unit moves the display screen area beyond the first area; and a table of management states of the virtual memory area in a respective memory device, in which the table of management states includes a listing representative of a plurality of virtual memory areas and an identification, a memory device name, an image file name, and an image file size for each of the virtual memory areas. - View Dependent Claims (13, 14)
-
-
15. A display apparatus, comprising:
-
a display memory for storing an image of a first area forming a portion of an entire image; a display section including a display screen having a display area usable for displaying at least a partial image of the first area; a case for exposing the display screen; scroll means for moving a display screen area appearing on the display screen over the entire image in accordance with a movement of the case; and control means for controlling a virtual memory area for storing an image of a second area of the entire image when the scroll means moves the display screen area beyond the first area, the control means being operable to divide the virtual memory area or the second area into a plurality of partial areas and to select a respective memory device from a plurality of memory devices for each of the partial areas based on an amount of image data of each of the partial areas and based on a storage capacity and/or access speed of each of the memory devices.
-
Specification