Patent US5696530A successfully refreshed from Google Patents.
US5696530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of moving enlarged image with mouse cursor and device for implementing the method
Assignee: NEC Corp
•
Filing: 1995-05-08
•
Granted: 1997-12-09
•
Expires: 2015-05-08
Abstract
Abstract When drawing is being executed in an enlarged display that moves with the movement of a mouse, because the movement of the enlarged display area centers on the point of the whole image indicated by the moving mouse cursor, a difference arises between the amount of movement of the mouse cursor in relation to the whole image and the amount of movement of the mouse cursor in relation to the enlarged display image. An enlarged display movement method is disclosed that eliminates this difference. Enlarged display of an area centering on a point of a whole image indicated by a mouse cursor is displayed superposed over the original image and centered on the indicated point. As long as the mouse cursor is within the enlarged display area, drawing can be executed within the enlarged displayed area without the enlarged display area being moved, and when the mouse cursor moves outside the enlarged display area, a new enlarged display is executed centering on the present point indicated by the mouse cursor.
Inventors
- 👤 Yoshinobu Maejima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:28
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/048; G06F3/0481
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
148 words
A method of displaying an enlarged image on a display with a mouse cursor on the display, comprising: detecting a position of the mouse cursor on the display; enlarging a predetermined area corresponding to the mouse cursor position to thereby enlarge an image corresponding to the predetermined area; displaying the enlarged image on the display; as a first mode of operation, selectively maintaining the enlarged image on the display while permitting the mouse cursor to move within the area of the enlarged image and restoring the enlarged image to a state preceding the enlargement when the mouse cursor is moved outside the enlarged image area; enlarging a new predetermined area corresponding to a new mouse cursor position to thereby enlarge an image corresponding to the new predetermined area when the mouse cursor is moved outside the previously enlarged image area; displaying the new enlarged image on the display.
Claim 2
Independent Claim
148 words
A method of displaying an enlarged image on a display with a mouse cursor on the display, comprising: detecting a position of the mouse cursor on the display; enlarging a predetermined area corresponding to the mouse cursor position to thereby enlarge an image corresponding to the predetermined area; displaying the enlarged image on the display; as a first mode of operation, selectively maintaining the enlarged image on the display while permitting the mouse cursor to move within the area of the enlarged image and restoring the enlarged image to a state preceding the enlargement when the mouse cursor is moved outside the enlarged image area; enlarging a new predetermined area corresponding to a new mouse cursor position to thereby enlarge an image corresponding to the new predetermined area when the mouse cursor is moved outside the previously enlarged image area; displaying the new enlarged image on the display.
Claim 3
Dependent Claim
16 words
A method according to claim 1, wherein the predetermined area to be enlarged is selectively variable.
Claim 4
Dependent Claim
15 words
A method according to claim 1, wherein the size of the enlargement is selectively variable.
Claim 5
Dependent Claim
50 words
A method according to claim 1, further comprising: as a second mode of operation, selectively maintaining the mouse cursor always on a center of an image to be enlarged and enlarging and displaying the image centered around the mouse cursor position, wherein the first and second modes are selectively switchable.
Claim 6
Dependent Claim
33 words
A method according to claim 1, further comprising scrolling an entire image on the display and allowing display of portions not present before scrolling when the entire image is larger than the display.
Claim 7
Independent Claim
396 words
A device for displaying an enlarged image with a mouse cursor, comprising: a video memory device for storing image data; a display for displaying an image corresponding to the image data stored in the video memory device; a memory device for saving an image information other than that of the enlarged image from an area of the video memory device into which the enlarged image is written when enlarging any area of the display; a mouse for controlling movement of the mouse cursor; a mouse controller for detecting a position of the mouse cursor; an enlargement processor for processing the image data supplied when the mouse provides a command to enlarge an image and when the mouse provides another command to restore the image to a state preceding the enlargement; a data transmission controller for, when the image is to be enlarged, executing transmission control for saving from the video memory device to the memory device, the image information other than that of the enlarged image in the area of the video memory device into which the enlarged image is written, for transmitting the image data for enlarged display from the video memory device to the enlargement processor, for transmitting results of enlargement processing to the area of the video memory device into which the enlarged image is written; and when the enlarged image is to be restored to the state preceding the enlargement, executing transmission control for transmitting the image data from the area of the video memory device into which the enlarged image has been written to the enlargement processor, for transmitting the image data that has been reduced by the enlargement processor from the enlargement processor to the area of the video memory device preceding the enlargement, and for transmitting the information saved to the memory device to the area of the video memory device before saving, wherein, when the mouse issues the enlarged image command while the mouse cursor is moved, the mouse controller defers the output of the command for a new enlarged image as long as the mouse cursor is within the region of the enlarged image currently being executed, and when the mouse controllerdetects that the mouse cursor has moved outside the region of the enlarged image, the mouse controller outputs a command for display of a new enlarged image to the data transmission controller and the enlargement processor.
Claim 8
Independent Claim
396 words
A device for displaying an enlarged image with a mouse cursor, comprising: a video memory device for storing image data; a display for displaying an image corresponding to the image data stored in the video memory device; a memory device for saving an image information other than that of the enlarged image from an area of the video memory device into which the enlarged image is written when enlarging any area of the display; a mouse for controlling movement of the mouse cursor; a mouse controller for detecting a position of the mouse cursor; an enlargement processor for processing the image data supplied when the mouse provides a command to enlarge an image and when the mouse provides another command to restore the image to a state preceding the enlargement; a data transmission controller for, when the image is to be enlarged, executing transmission control for saving from the video memory device to the memory device, the image information other than that of the enlarged image in the area of the video memory device into which the enlarged image is written, for transmitting the image data for enlarged display from the video memory device to the enlargement processor, for transmitting results of enlargement processing to the area of the video memory device into which the enlarged image is written; and when the enlarged image is to be restored to the state preceding the enlargement, executing transmission control for transmitting the image data from the area of the video memory device into which the enlarged image has been written to the enlargement processor, for transmitting the image data that has been reduced by the enlargement processor from the enlargement processor to the area of the video memory device preceding the enlargement, and for transmitting the information saved to the memory device to the area of the video memory device before saving, wherein, when the mouse issues the enlarged image command while the mouse cursor is moved, the mouse controller defers the output of the command for a new enlarged image as long as the mouse cursor is within the region of the enlarged image currently being executed, and when the mouse controllerdetects that the mouse cursor has moved outside the region of the enlarged image, the mouse controller outputs a command for display of a new enlarged image to the data transmission controller and the enlargement processor.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-12-08 | 2001-06-09 | 2001-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-12-08 | 2005-06-09 | 2005-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-12-08 | 2009-06-09 | 2009-12-09 | $7700.00 | Window Closed / Lapsed |