Graphics processing unit for use with a stylus pen and tablet, and method therefore

• US 5,636,336 A
• Filed: 08/12/1996
• Issued: 06/03/1997
• Est. Priority Date: 10/19/1992
• Status: Expired due to Term

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Adachi, Motomitsu
• Primary Examiner(s): Tung, Kee M.
• Assistant Examiner(s): CHAUHAN, ULKA J
• Application Number:
  US08/695,876
• Time in Patent Office: 295 Days
• Field of Search: 345/121, 345/122, 345/126, 345/127, 345/131, 345/179, 395/128, 395/133, 395/139, 395/326, 395/339, 395/173, 395/501, 395/523
• US Class Current: 345/667
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures
• CPC Class Codes: G06T 11/00 2D [Two Dimensional] image generation

Abstract

An instruction for transformation processing of an image is detected. An instruction for specifying a targeted image which will be the object of transformation processing is detected. An instruction for specifying a fixed point of the image without changing the position thereof, independent of transformation processing, is detected. Then, the instructed transformation processing is executed on the targeted image. The targeted image is displayed such that the fixed points of the targeted image before/after image processing are matched.

Claims

1. A graphics processing unit comprising:

display means for displaying an image on a screen;

an operation section executing an operation including an instruction to said display means for a display process and an instruction for specifying a fixed point without changing a position thereof, independent of transformation processing;

an instruction detecting section detecting an instruction given by said operation section for transformation processing of said image, and for specifying a targeted image which will be an object of said transformation processing;

a targeted image specification processing section;

when said instruction detecting section detects the instruction for said transformation processing and the instruction for specifying said targeted image, said targeted image specification processing section executing a process including sending said targeted image to an image processing section;

a fixed-point specification processing section;

when said instruction detecting section detects the instruction for said transformation processing and an instruction for specifying a fixed point without changing a position thereof, independent of said transformation processing, said fixed-point specification processing section instructing said display means to display said targeted image such that fixed points of said targeted image before and after said transformation processing are matched to each other; and

an image processing section executing said instructed transformation processing on said specified targeted image;

wherein a targeted graphic item to be processed is shrunk and erased so as to appear to be sucked into a tip of a stylus pen, and wherein the targeted graphic item to be processed is enlarged so as to appear to be exploded from the tip of the stylus pen.

9. A graphics processing unit according to any one of claims 1 and 6, when a sound instruction given by said operation section is detected by said instruction detecting section, further comprising a sound generating instruction section instructing generation of a predetermined sound in synchronism with display of said image when said image processed by said image processing section is displayed on said display means;

and a sound generating unit for generating sound when an instruction is given by said sound generating instruction section.

2. A method of graphics processing, comprising the steps of:

detecting an instruction for transformation processing of an image;

detecting an instruction for specifying a targeted image which will be an object of said transformation processing and detecting an instruction for specifying a fixed point without changing a position thereof, independent of said transformation processing of said targeted image; and

executing said transformation processing on said detected targeted image and displaying said targeted image on a display means such that fixed points of said targeted image before and after said transformation processing are matched to each other;

further comprising the steps of;

detecting an instruction for shrink and erase processing of an image;

detecting an instruction for specifying a targeted image which will be an object of said erase processing and detecting an instruction for specifying a fixed point without changing a position thereof, independent of said erase processing of said image;

creating an image formed of pixels as a result of thinning out pixels forming said targeted image at one of every interval of a predetermined line number and every interval of a predetermined column number, to form a thinned-out image;

displaying the thinned-out image on said display means such that said fixed points of said image before and after it is thinned out are matched to each other; and

erasing said image after repeatedly thinning out said image until it shrinks into a predetermined number of pixels;

wherein a targeted graphic item to be processed is shrunk and erased so as to appear to be sucked into a tip of a stylus pen.

3. A method of graphics processing, comprising the steps of:

detecting an instruction for transformation processing of an image;

detecting an instruction for specifying a targeted image which will be an object of said transformation processing and detecting an instruction for specifying a fixed point without changing a position thereof, independent of said transformation processing of said targeted image; and

executing said transformation processing on said detected targeted image and displaying said targeted image on a display means such that fixed points of said targeted image before and after said transformation processing are matched to each other;

further comprising the steps of;

detecting an instruction for appear and enlarge processing of an image;

detecting a targeted image which will be the object to appear and enlarge and detecting a fixed point without changing a position thereof, independent of said appear and enlarge processing;

reading a smallest non-read image portion among a pre-created plurality of image portions formed of pixels as a result of thinning out pixels forming said targeted image at one of every interval of a predetermined line number and every interval of a predetermined column number;

displaying said image on said display means such that said fixed point of a newly-read image and that of a pre-read displayed image are matched to each other; and

repeating the display of said image portions in the order of smaller-sized portions until they return to an original size.

4. A method of graphics processing, comprising the steps of:

detecting an instruction for transformation processing of an image;

detecting an instruction for specifying a targeted image which will be an object of said transformation processing and detecting an instruction for specifying a fixed point without changing a position thereof, independent of said transformation processing of said targeted image; and

executing said transformation processing on said detected targeted image and displaying said targeted image on a display means such that fixed points of said targeted image before and after said transformation processing are matched to each other;

wherein during transformation processing of said image, further comprising the step of displaying said image subjected to said transformation processing on said display means while it rotates at a center about said specified fixed point at a predetermined angle;

wherein a targeted graphic item to be processed is shrunk and erased so as to appear to be sucked into a tip of a stylus pen, and wherein the targeted graphic item to be processed is enlarged so as to appear to be exploded from the tip of the stylus pen.

5. A graphics processing unit comprising:

display means for displaying an image on a screen;

an operation section executing an operation, including giving an instruction to the screen for a display process;

an instruction detecting section detecting said instruction given by said operation section for transformation processing of said image, or for specifying a target image which will be an object of said transformation processing, or for a process of specifying a fixed point;

a target image specification processing section sending said target image to an image processing section when said instruction detecting section detects the instruction for said transformation processing and the instruction for specifying said target image;

an image processing section executing said instructed transformation processing on said specified target image; and

a high-speed display instruction section;

when said instruction detecting section detects said instruction for said transformation processing and detects a process executing time when said transformation-processed image should be displayed, said high-speed display instruction section instructing said display means to display said transformation-processed target image at high speed;

wherein a targeted graphic item to be processed is shrunk and erased so as to appear to be sucked into a tip of a stylus pen, and wherein the targeted graphic item to be processed is enlarged so as to appear to be exploded from the tip of the stylus pen.

6. A method of graphics processing comprising the steps of:

detecting an instruction for transformation processing of an image;

detecting an instruction for specifying a targeted image which will be the object of said transformation processing;

detecting a process-executing time when said transformation-processed image should be displayed; and

displaying said targeted image at high speed after said targeted image is transformation-processed;

wherein a targeted graphic item to be processed is shrunk and erased so as to appear to be sucked into a tip of a stylus pen, and wherein the targeted graphic item to be processed is enlarged so as to appear to be exploded from the tip of the stylus pen.

7. A graphics processing unit comprising:

display means for displaying an image on a screen;

an I/O-integrated operation section giving an instruction to the screen for a display process by using a tablet arranged on the screen and a stylus pen and an instruction for specifying a fixed point without changing a position thereof, independent of said transformation processing;

an instruction detecting section detecting operational instructions given by said operation section for transformation processing of said image, and for specifying a targeted image which will be the object of said transformation processing;

a targeted image specification processing section sending said targeted image to an image processing section when said instruction detecting section detects an instruction for said transformation processing and an instruction for specifying said targeted image;

a fixed-point specification processing section;

when said instruction detecting section detects the instruction for said transformation processing and an instruction for specifying a fixed point without changing a position thereof, independent of said transformation processing, said fixed-point specification processing section instructing said display means to display said targeted image such that said fixed point of said targeted image before and after said transformation processing are matched to each other;

an image processing section executing said instructed transformation processing on said specified targeted image; and

a level variable specification processing section;

when said instruction detecting section detects a level variable indicating a region to be transformed, a transformation speed, a density of display, or a color of display, said level variable specification processing section processing said level variable to said display means and said image processing section such that said image is displayed or transformation-processed according to the detected level variable;

wherein a targeted graphic item to be processed is shrunk and erased so as to appear to be sucked into a tip of a stylus pen, and wherein the targeted graphic item to be processed is enlarged so as to appear to be exploded from the tip of the stylus pen.

8. A method of graphics processing comprising the steps of:

detecting an instruction for transformation processing of an image given by an I/O-integrated operation section;

detecting an instruction for specifying a targeted image which will be an object of said transformation processing and which is set by said I/O-integrated operation section, and detecting an instruction for specifying a fixed point without changing a position thereof, independent of said transformation processing, and detecting a level variable indicating a region to be transformed, a transformation speed, a density of display, or a color of display, set by said I/O-integrated operation section; and

executing said transformation processing on said targeted image according to the detected level variable, and subsequently, matching said fixed point of said targeted image before and after said transformation processing and displaying said targeted image having said level variable;

wherein a targeted graphic item to be processed is shrunk and erased so as to appear to be sucked into a tip of a stylus pen, and wherein the targeted graphic item to be processed is enlarged so as to appear to be exploded from the tip of the stylus pen.