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| System for displaying graphic and alphanumeric data |
| What is claimed is: 1. A device for producing electrical signals used to simultaneously display ... |
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| Weight coded delivery conveyor system |
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| Machine tool control |
| According to the invention, there is provided a machine tool control system for machining a surface ... |
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| Method and device for excess modulation detection for signal analysis |
| The present invention seeks to overcome deficiencies in the prior art by providing an automated ... |
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| Master-slave signal transfer system for elevator |
| This invention has been made in order to solve the problems mentioned above, and has for its object ... |
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| System for the demand-dependent control of guided vehicles |
| We claim: 1. A system for the demand-dependent control of guided vehicles where the equipment ... |
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| Multi-purpose survival canteen |
| An object of the present invention is to provide a multi-purpose survival canteen having the ... |
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| Passive ranging system utilizing range tone signals |
| Accordingly, it is an object of the present invention to provide an improved low cost ranging ... |
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| Automatic transmission controls with off-highway mode |
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Graphic processing method and system for displaying a combination of images
| Details |
Inventors: Katsura, Koyo; Matsuo, Shigeru; Sato, Jun; Sone, Takashi; Yokota, Yoshikazu; Kikuchi, Masahiko;
Assignee: Hitachi, Ltd. (Tokyo, JP); Hitachi Engineering Co., Ltd. (Hitachi, JP)
Primary Examiner: Tung; Kee M.
Assistant Examiner:
Attorney, Agent or Firm: Antonelli, Terry, Stout & Kraus, LLP
A graphic processing method and system which is capable of displaying a combination of images from, for example, an external source such as TV signals and graphic data generated by a graphic processor, whereby the graphic processor fetches horizontal synchronizing signals and vertical synchronizing signals, via respective terminals, from a source external of the system, and reads out the data from a frame buffer in accordance with the fetched signals to display the data. |
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DETAILED DESCRIPTION It is therefore an object of the present invention to provide a graphic processing system which enables the graphic processor to access the system memory so as to increase the speed of the drawing operation on the system memory and in which, when a parallel processing is executed by a plurality of processors, fundamental information such as a character font to be commonly used is located in the system memory so as to be shared among the processors.
Another object of the present invention is to provide a graphic processing apparatus in which processing of a pixel is accomplished on through a write operation so as to generate and to draw graphic data including a line, an arc, and the like.
Still another object of the present invention is to provide a graphic processing apparatus in which a microprogram to achieve the coordinate calculation and a microprogram to execute the memory address calculation are separated from each other so as to improve the describability or the describing capability of a program.
Further, another object of the present invention is to provide a graphic processing apparatus including a multi-way branch method improving the efficiency of a microprogram.
Another object of the present invention is to provide a graphic processing apparatus having an efficient method of debugging a microprogram in which a microprogram in execution is halted at a desired address, internal information of the graphic processing apparatus is read out, and thereafter the halted microprogram is restarted for the execution thereof.
Still another object of the present invention is to provide an graphic processing apparatus which is capable of effecting a drawing operation by use of as the basic unit a picture element (PEL), namely, a dot having an arbitrary shape and an arbitrary size configured in association with a plurality of picture cells (pixels).
Another object of the present invention is to provide an graphic processing apparatus in which during the drawing operation using the pel as the basic unit, a high-speed drawing operation and a drawing operation through a control effected on a pel region for a drawing area can be effected
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Graphic Cards 
