Image display system

• US 4,366,475 A
• Filed: 02/20/1981
• Issued: 12/28/1982
• Est. Priority Date: 02/23/1980
• Status: Expired due to Term

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Kishi, Hajimu, Tanaka, Kunio
• Primary Examiner(s): TRAFTON, DAVID
• Application Number:
  US06/236,552
• Time in Patent Office: 676 Days
• Field of Search: 340/711, 340/712, 340/731
• US Class Current: 345/668
• CPC Class Codes: G05B 19/4069 Simulating machining process on screen G05B19/4068 takes precedence
• CPC Class Codes: G05B 2219/35072 Scale, zoom a designed figure
• CPC Class Codes: G05B 2219/36015 Display areas, fields on screen correspond to position of keys on panel, matrix
• CPC Class Codes: G06F 3/04892 Arrangements for controlling cursor position based on codes indicative of cursor displacements from one discrete location to another, e.g. using cursor control keys associated to different directions or using the tab key arrangements for controlling cursor position based on coordinate signals G06F3/038
• CPC Class Codes: H04N 1/3875 combined with enlarging or reducing enlarging or reducing per se H04N1/393
• CPC Class Codes: Y02P 90/02 Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

An image display system suitable for use in displaying, at an enlarged scale, any desired portion of an image presented on a picture surface of a display apparatus, or in displaying, in a reduced scale, the whole portion of the image presented on the picture surface. The picture surface is divided into sub-regions arranged in m lines and n columns. Sub-region appointing numeral keys are arranged to correspond to these sub-regions, so that any desired sub-region is appointed by a depression of the corresponding appointing keys, thus designating that to make the image portion in the appointed sub-region be enlarged and displayed over the entire area of the picture surface or that the whole part of the image on the display surface be reduced and displayed in the appointed sub-region of the picture surface.

Claims

1. An image display system comprising:

a display device having a picture surface on which an image to be enlarged or reduced is formed, said picture surface being divided into m×

n sub-regions arranged in m lines and n columns where m and n are integers;

a plurality of numeral keys bearing different numerical values, said keys for appointing said sub-regions and for generating numerical values;

an operation unit, operatively connected to said plurality of numeral keys, for making the numerical values input through said plurality of numeral keys correspond to said sub-regions and for generating a corresponding output; and

a picture processing device, operatively connected to said operation unit and to said display device, for transmitting to said display device, upon receipt of the output from said operation unit, the image of the sub-region appointed by the numeral key input at an enlarged scale for display on said picture surface.

2. An image display system as claimed in claim 1, further comprising:

an enlarge key, operatively connected to said operation unit, for generating an enlarge order signal for initiating display at an enlarged scale; and

a reduce key, operatively connected to said operation unit, for generating a reduce order signal for initiating display at a reduced scale, whereby, as the reduce order signal for initiating display at reduced scale is input through said reduce key, said picture processing device reducing the image presented on said picture surface and transmitting the reduced image to be displayed in the sub-region appointed through said reduce key input into said display device.

3. An image display system as claimed in claim 1, wherein said display device has the number of sub-regions in the line direction equal to the number of sub-regions in the column direction, so that magnifications and reductions of m and 1/m, respectively, are obtained for the displays at enlarged and reduced scales, respectively.

4. An image display system as claimed in claim 1, wherein said display device has the sub-region at the line i and column j on said picture surface corresponding to the sub-region appointing key represented by a numerical value of (i-1).m j, where i and j are integers.

5. An image display system as claimed in claim 1, wherein said picture processing unit has a picture origin point for the display at the enlarged scale calculated from data for the position of the sub-region in dependence upon the numerical value of the one of the plurality of numeral keys through which the appointing is made.

6. An image display system as claimed in claim 4, wherein said display device has said picture surface divided into 9 sub-regions arranged in 3 lines and 3 columns, and wherein said plurality of numeral keys for appointing said sub-regions is a ten-key type input device.

7. An image display system as claimed in claim 6, wherein said ten-key type input device has a "0" key for generating the enlarge order signal for initiating the display at an enlarged scale, and has a decimal point key for generating the reduce order signal for initiating the display at a reduced scale.

8. An image display system as claimed in claim 4, wherein said operation unit is adapted to appoint an imaginary sub-region having the same area as said sub-region and extending at least over said plurality of adjacent sub-regions and inputs are made through said plurality of numeral keys corresponding to a plurality of adjacent sub-regions of the picture surface.

9. An image display system comprising:

input means for inputting n×

m sub-region appointment indicators, where n and m are integers, and for inputting a magnification indicator;

calculation means, operatively connected to said input means, for calculating a picture origination point and manification including;

a distribution circuit, operatively connected to said input means, for distributing the sub-region appointment indicators and the magnification indicator;

origination means, operatively connected to said distribution circuit, for calculating the picture origination point in dependence upon the sub-region appointment indicators; and

factor means, operatively connected to said distribution circuit and said origination means, for calculating a magnification factor and a calculation factor in dependence upon the magnification indicator; and

display means, operatively connected to said origination means and said factor means for storing the picture image divided into n×

m sub-regions and for visually displaying an enlarged or reduced version of the picture image stored in dependence upon the picture origination point and the magnification factor, so that the picture image is displayed in a reduced or enlarged fashion in dependence upon the sub-region appointed and the magnification indicator and so that said sub-region appointed is displayed in a reduced or enlarged manner.

10. An image display system as claimed in claim 9, wherein said factor means comprises:

a judging circuit, operatively connected to said distribution circuit, for generating an enlarged or reduced signal in dependence upon the magnification indicator;

a magnification calculation circuit, operatively connected to said judging circuit, for generating the magnification factor and the calculation factor in dependence upon whether the enlarged or reduced signal is received; and

a register, operatively connected to said magnification calculation circuit and said origination means for storing and passing therethrough the magnification factor and the calculation factor.

11. An image display system as claimed in claim 9, wherein said origination means comprises:

a first register, operatively connected to said distribution circuit, for storing and passing therethrough one of the sub-region appointment indicators and for storing corresponding column and line indicators;

a judging circuit, operatively connected to said first register, for determining whether the column and line indicators indicate the sub-region appointed by the one of the sub-region appointment indicators and for generating a greater than signal when the column and line indicators do not indicate the sub-region appointed by the one of the sub-region appointment indicator and for generating a less than signal when the line and column indicators indicate the one of the sub-region appointed by the sub-region appointment indicators;

a first operation circuit, operatively connected to said judging circuit and said first register, for receiving the column and line indicators and for calculating new values for the column and line indicators whenever the greater than signal is received and for storing said new values in said first register as the column and line indicators;

a second operation circuit, operatively connected to said judging circuit and said factor means for calculating first and second lengths for each sub-region in dependence upon predetermined picture lengths and the magnification factor;

a second register, operatively connected to said second operation circuit, for storing and passing therethrough the first and second lengths;

a calculation circuit, operatively connected to said first register, said second operation circuit, said second register and said factor means for calculating the picture origination point in dependence upon a predetermined initial picture origination point, the first and second lengths, the column and line indicators and the calculation factor; and

a third register, operatively connected to said calculation circuit and said display means, for storing and passing therethrough the picture origination point, so that said display means displays an enlarged or reduced version of the picture image stored in dependence upon the picture origination point and the magnification factor.

12. An image display system as claimed in claim 9, wherein said origination means comprises:

a first register, operatively connected to said distribution circuit, for storing and passing therethrough at least two sub-region appointment indicators and for storing for each sub-region appointment indicator corresponding column and line indicators;

a judging circuit, operatively connected to said first register, for determining whether the corresponding column and line indicators indicate the sub-region appointed by the corresponding sub-region appointment indicator, for generating a corresponding greater than signal when the corresponding column and line indicators do not indicate the corresponding sub-region appointed by the corresponding sub-region appointment indicator and for generating a corresponding less than signal when the corresponding line and column indicators indicate the corresponding sub-region appointed by the corresponding sub-region appointment indicator;

a first operation circuit, operatively connected to said judging circuit and said first register, for receiving the corresponding column and line indicators and for calculating new values for the corresponding column and line indicators when the corresponding greater than signal is received and storing the new values as the corresponding column and line indicators;

an arithmetic circuit, operatively connected to said first register and said judging circuit, for calculating an imaginary column and line indicator in dependence upon the column and line indicators corresponding to said at least two sub-region appointment indicators when the corresponding less than signals are received;

a second register, operatively connected to said arithmetic circuit, for storing and passing therethrough the imaginary column and line indicators;

a second operation circuit, operatively connected to said arithmetic circuit and said factor means for calculating first and second lengths for an imaginary sub-region in dependence upon predetermined picture lengths and the magnification factor;

a third register, operatively connected to said second operation circuit, for storing and passing therethrough the first and second lengths;

a calculation circuit, operatively connected to said second register, said second operation circuit, said third register and said factor means for calculating the picture origination point in dependence upon a predetermined initial picture origination point, the first and second lengths, the imaginary column and line indicators and the calculation factor; and

a fourth register, operatively connected to said calculation circuit and to said display means, for storing and passing therethrough the picture origination point, so that an imaginary sub-region between the sub-regions appointed by said at least two sub-region appointment indicators is displayed in an enlarged or reduced manner.

13. An image display system as claimed in claim 10, wherein said magnification calculation circuit calculates a magnification or reduction factor of m or 1/m, respectively, in dependence upon whether the enlarged signal or the reduced signal is received, respectively.

14. An image display system as claimed in claim 11 or 12, wherein m and n are equal to 3.

15. An image display system as claimed in claim 14, wherein said input means is a ten-key type key pad having numeral keys 0 through 9 and a decimal key, wherein said sub-region appointment indicators are the numeral keys 1 through 9 and the magnification indicator includes a reduction indicator and an enlarge indicator, wherein said enlarge indicator is the 0 numeral key and said reduction indicator is the decimal point key.