JPS59160170A - image display device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image display device capable of displaying a plurality of overlapping pages simultaneously on one screen.

[Prior art]

Conventionally, in this type of image display device, the contents of a page to be inserted are generally displayed at an insertion position designated in advance using a key or the like. Yet another insertion position.

If specified, the display will suddenly appear at the specified position.

However, it is rare for the operator to remember everything about what content is written in which part of the page to be inserted, so the desired part of the page to be inserted is exactly displayed on the screen. Until then, it will be necessary to correct the insertion position designation several times. This creates a gap between the screen desired by the operator and the screen actually displayed, which not only leads to a decrease in the operator's work efficiency but also has a negative psychological impact.

[Purpose of the invention]

The purpose of the present invention is to improve the above-mentioned conventional difficulties, and to make it possible to spread out several pages of documents and diagrams on a desk and create a desired page of text or diagrams while referring to them. The purpose of this invention is to provide an image display device that makes it possible to perform various tasks.

[Configuration of Example]

Hereinafter, the configuration of an embodiment of the present invention will be described with reference to FIGS. 1 and 2.

The data bus of the keyboard section 1 and the data bus and address bus of the storage section 2 for storing the contents of documents input from the keyboard section 1 are connected to a central processing unit section (hereinafter referred to as CPtJ section) 3. The insertion position designation knob 4 can be slid left and right through the knob slide hole 5, and the knob itself can be rotated left and right.By operating this knob, a variable resistor 6 for the horizontal direction and a variable resistor for the vertical direction connected to the power supply VCC are connected. It is possible to avoid changing the resistance value of the variable resistor 7, and this horizontal and vertical variable resistor 6
, 7 are connected to an AD converter 11 via a first multiplexer 10 controlled by the 020 unit 3, and the data bus of this AD converter 11 is connected to the 020 unit 3. Hide ΔRA where the character code to be displayed on CRTl 2 is stored.
M <Readable and writable memo January 13 data bus t is connected to a character generator (hereinafter referred to as CG) 15 and 020 part 3 controlled by a CR controller 14, and an address bus is connected to 020 part 3 and CRT A second multiplexer 16 to the controller 14
connected via. Further, the data bus of the CG 15 is connected to a parallel-serial conversion circuit 17, and the output terminal of the parallel-serial conversion circuit 17 is connected to the CRTI 2, which is controlled by the CRT controller 14.

[Operation of the embodiment]

The operation of the above configuration will now be described with reference to FIGS. 1 to 3.

If it becomes necessary to refer to the contents of another page stored in the memory unit 2 while looking at the display on the cRT 12 while manually using the keys from the keyboard 1 to refer to the contents of another page stored in the memory unit 2, first press the keys manually. The desired page is designated by the button 4, and then the inserted page is moved to the desired position by the insertion position designation knob 4. The operation for moving this inserted page is as follows.

If the insertion position designation knob 4 is slid to the left, the resistance value of the lateral variable resistor 6 becomes too large (and the output voltage becomes low), and if it is slid to the right, the resistance 110 becomes small and the output voltage becomes high. Further, when the insertion position specifying knob 4 itself is turned to the left, the resistance value of the vertical variable resistor 7 increases and the output voltage becomes low (lower), and when it is turned to the right, the resistance value decreases and the output voltage becomes higher. The analog output horn signal of either the horizontal direction variable resistor 6 or the vertical direction variable resistor 7 is ClJ
The signals are alternately selected by the first multiplexer 10 according to instructions from the U section 3, outputted to the AD converter 11, converted into digital signals, and outputted to the CP and IJ sections 3.

020 part 3 is a video RAM that corresponds to the data sent from the △D converter 11 that specifies the insertion position of the page.
The content of the address in 13 is rewritten to the content of the insertion page 18 stored in the storage unit 2. In this way, the contents of the 1c video RAM 13 are rewritten, that is, CR
The code corresponding to the character displayed on Tl2 is CRT
Based on the refresh address from the controller 14, it is sequentially output to the CG 15, converted into a parallel signal corresponding to the pattern of each character, and outputted to the parallel-serial conversion circuit 16, where it is converted into a serial signal and outputted to the CRT12, and the CRT controller 14 Each character is displayed under the control of vertical and horizontal synchronization signals from.

FIG. 3 shows a state in which another page 18 is inserted on top of the display of one page 19. If you slide the insertion position designation knob 4 to the left, the insertion page 18 will expand to the left, and if you slide it to the right, it will narrow to the right.
If you slide it all the way to the right, it will disappear from the top of the CRTl2. Furthermore, when the insertion position designation knob 4 itself is turned to the left, the insertion page 18 will expand upward, when turned to the right, it will be narrowed downward, and when turned completely to the right, it will disappear from the CRT 12. Furthermore, when the insertion position designation knob 4 is slid all the way to the left and then turned all the way to the left, the insertion page 18 spreads over the entire surface of the CRTI 2 and completely replaces the page 19 that was initially displayed.

Also, if you want to insert another page overlappingly, press 010 to that effect from the keyboard section 1 to the CPU section 3.
The unit 3 rewrites the content of the address corresponding to the designation by the insertion position designation knob 4 in the video RAM 13 with the content of the desired page stored in the storage unit 2 by the same operation as described above. In this way, multiple pages are displayed partially but simultaneously on the CRTl 2.

〔Effect of the invention〕

As described in detail above, the image display device according to the present invention can determine the position of an insertion page by operating the insertion position designation knob.
You can move continuously while checking with T. Therefore, when displaying the desired part of the inserted page, the document on the desk,
It is possible to perform tasks such as creating diagrams, proofreading, etc. in a very similar way, and even if the operator does not have to clearly remember the contents of the inserted page, the desired part can be easily found. The efficiency and accuracy of work such as creation and proofreading of documents will be improved.

[Brief explanation of drawings]

FIG. 1 is a front view showing the display part of a word processor to which an embodiment of the present invention is applied, FIG. 2 is a block diagram of the word processor, and FIG. 3 is a diagram showing the display on a CRT when a page is inserted. be. In the figure, 1 is a keyboard section, 2 is a storage section, 3 is a CPU section,
4 is an insertion position designation knob, 5 is a knob slide hole, 6 is a horizontal variable resistor, 7 is a vertical variable resistor, 10 is a first multiplexer, 11 is an AD converter, 12 is a CRTl3 is a bidet ΔRAM, 18 is an insertion page, and 19 is a page that was initially displayed. Patent applicant Katsuji Kawashima, President and Director of Brazi Industries Co., Ltd.

Claims (1)

[Scope of Claims] 1. In an image display device that displays a predetermined page on a screen from a memory that stores documents or diagrams consisting of multiple pages, another page is read out from the memory and displayed on the screen over the predetermined page. and an external operating means for specifying the display position of pages to be superimposed on the screen, the external operating means for continuously moving the overlapping position of the screen in the vertical and horizontal directions. An image display device characterized in that a command is input to the superimposed display control means as an analog voltage value.