JPS5943434A - Light pen switching control system - Google Patents

Abstract

PURPOSE:To indicate an optional position with one light pen and to shorten a time, by using the light pen which discriminates different display colors on plural color display monitors, and outputs corresponding color discrimination signals. CONSTITUTION:When the tip of the light pen 16 is pressed against either of CRT monitors 141 and 142 at a desired display position, a switch-on signal SW, ON is generated and inputted to CRT controllers 151 and 152. Consequently, both CRT monitors stop screen display and while a coordinate position on the monitor 142 is displayed in red, a coordinate position on the monitor 142 is displayed in green. The photosensor of the light pen 16 detects either one to generate and input a color photodetection signal R-DETECT or G-DETECT of red (R) or green (G) to the CRT controller 151 or 152. A microprocessor 10 reads correctly the contents of a CRT controller 15 corresponding to the CRT monitor 141 or 142 correctly.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a system in which a plurality of color display monitors (IHl) are installed, and the arbitrary coordinate position of the display screen of the N1 color display monitor can be determined with one light pen. This article relates to a light pen cutting method that is suitable for what you are giving instructions to.

[Technical background of the invention and its problems J When indicating the position (coordinate position) on the screen of a display monitor such as a color display monitor, a light ben is generally used. This light ben has 1 unit for 1 CRT monitor.
This is generally the case. However, in the field of process Witl Ijl'll, for example, two CRT monitors are arranged side by side on the left and right, and one operator instructs the position on both sides of both monitors with one light. This is necessary when there is too much display information to display on a single CRT monitor.
If the display device becomes unusable due to malfunction, etc., the remaining C
,I? The phase of trying to carry out work using the T table's power 11: (This is also necessary in the H backup system.
) Y and iru,.

However, one operator can use one light pen to
(T'F21! The CR of the CRT monitor
When specifying the position 11t on the screen of the T monitor, the operator has to perform an operation to specify which monitor to use each time, which has the disadvantage that the beam construction rate decreases. Also, I made a mistake in specifying the monitor. 1 go,
The wrong instructions would be given to the system, which could lead to erroneous actions and troubles between the parties.

By the way, as mentioned above, you can use multiple CRs with one light pen.
The light pen detection pattern for protruding 4>: on the screen of a desired monitor among the T monitors is the light pen detection pattern for protruding 4>: In general, the display was displayed on each CRT monitor at the same timing and for the same period in response to the wave switch signal from the light sensor. time zone) for each C
Shifted to RT monitor, consists of C RT monitor for light ben detection/? While the turn is displayed, the remaining C
1. Do not display any screen on the RT monitor. , a layered method has been proposed. In this method, the timing of light detection (from the light ben detection pattern) by the light ben is determined for each CR.
Since all T monitors are different, the timing of the light 4φ output signal from the light pen may vary depending on the pen (・'k l'lE's
The CRT monitors that have become cheap can be identified by MicroZoro Seven and others using their own V1 method, and the drawbacks mentioned above can be overcome.
). However, this method has the disadvantage that the time from the pen operation to the identification of the CRT monitor used as the countermeasure for the operation is I+41, that is, the time required to pick up the light pen is 1fjl.

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and its purpose is to:
I have a system with multiple color display monitors. ! 1kW is 17 father and from the table, let it be the pair '-σ! You can use a single light pen to point to any desired position on the display screen of a color display monitor without having to perform any special operation to specify the pointing monitor. Light pen 1τg life'+nl that can significantly shorten time
l (To provide the d11 method.

[1st aspect of the invention] In the present invention, the function of the display screen of a color display monitor is as follows:
(As a light pen to indicate 7t, the color of the picked up light is not the original one of '-1i!', 'nr, 14 and the corresponding color + Jtt,
53! Sawa 1 outputs the J signal (I try to use a light pen.

Further, in the present invention, when a light pen is pressed onto one display screen of a plurality of color display monitors and a pen switch-on signal is output from the light pen, a predetermined signal is applied to all color display monitors. The i4 turn for light bend detection is displayed in different display colors.

In such a case, the effective color identification signal output from the light pen is a unique color identification signal that corresponds to the display color of the light pen detection pattern displayed on the color display monitor to which the light pen is pressed. Yes, and therefore the color that the light pen is pressed against by this color identification signal! The display monitor can be identified.

[Dog example of the invention]

The following is a drawing of an embodiment of the present invention. Please refer to it and visit.

Figure 1 shows an embodiment of the terminal system to which the present invention is applied, and 10 shows the entire system as ftjl.
, l r.

1 is a program memory in which each of the 4 city microprograms is stored, 12 is a host H+roux [% (not shown)
13 is a system path (microprocessor path). 14.
．． 14. is a color display monitor, for example, a color display monitor (hereinafter referred to as "I" as a CRT monitor), 15H
+152 is CRT monitor 4. 14. This is a CRT controller that performs displays 11i1 and 1111 for the images. In this Jj 17i1j +zll CRT controller 15t, 15. ), (unwisely the same number of grooves,
Connector (i'4 adapter 12) from the host (not shown)
The display data is transferred via the CRT monitor 14. .

1 resolution signal VII) gol, VII output to 14t
)B, Mouse 1 Chi's 1.02 is born. ′&Nonzo formation (not shown) is performed.
=1, 2), a red video signal Ri and a green video signal Gi.

[4f video/BJ, j Bj, same] Signal 8YNC
It is i. In addition, the CRT controller 15. ．． 15. is the corresponding CRT monitor 14. ．． The contents of a detection flip-flop (not shown) indicating that the light pen 14t has been operated, and a scanning counter (not shown) indicating the screen scanning position R are displayed at the coordinate position indicated by the light pen 16 (to be described later). In addition to the light pen at 9 (not shown) loaded as a light pen part 1 terminal T, ~Ts. This separate terminal T
If a valid binary signal is input to 1, the corresponding CRT
Controller 15. ．． The detection flip-flop in 152 is set and the current J-F! The contents of the 1 counter are loaded into the write address register, and a valid binary signal is manually input to the input address register. Matching, corresponding C
RT controller 15. ．． 152 prohibits the display of regular patterns, and! , The color display is color-retaining, and the color display is displayed on a CRT monitor (141°14). CRT controller with one core 15.
．． 15□ suppresses the display of the pattern I'〒V, and displays the A' turn for detecting the light pen in a dark color on the CRT monitor 141°14□.

16 is a light pen.The light pen 16 is purchased as shown in FIG. In the figure, 21 is a light sensor that only identifies red light, and 22 is a light sensor that only identifies green light. An amorphous jjj l+:5 color sensor is known. 2,? , 24 is an amplifier circuit that amplifies a photoelectric conversion signal to a predetermined signal level with optical sensors 21 and 22, and 25 and 26 are comparators. j 7 /'Plator time 1 case 25 compares the output of the amplifier circuit 23 and Kigo '1 Engineering King, and the amplifier lφ
The red light detection signal T<-DETJ is valid (logic 11゛) while the output of 1 signal 23 is greater than the base 1 ■' city 1 field.
Outputs CT (red ljM separate signal). In addition, the comparator circuit 1 circuit 26 is connected to the output of the amplifier circuit 24 ^", "A
It'(Compare with l King, Amplifier II! 1 jr,
The 1.13 color light detection signal G-DETE is valid (logic 1'1") while the output of 24 is greater than the reference value.
CT (color identification signal: I'4) is output. Reference numeral 27 denotes a reflector plate that only responds to the pressing operation of the light pen, and 28 denotes a photoelectric switch circuit (hereinafter simply referred to as simply (referred to as "switch time 1 Raku"). Switch times il'82
8, when the reflector 27 moves to the right in the drawing due to the light pen pressing operation, the reflected light from the reflector 27 (with respect to the output light from the light emitting element) is detected by the light sensor 7. Outputs a valid (logic 11) switch-on signal SWON.

Note that the conventional light pen has a light sensor in Fig. 2.
22. For reference, the amplifier circuit 'M 24 and the comparator circuit 26 have been removed, and in place of the optical sensor 2, a full-spectrum optical sensor 14' and I is installed in the groove b+i. 6. Also, referring to FIG. 1, 17 connects the switch-on No. 14 8WON output from the light pen 16 (switch circuit 28) to the secondary terminal T3 of the CRT controller 151 and the CRT controller 152. The line that connects to the control terminal T and i11 is the line. 18 is the comparator circuit 2 of the light pen 16 (
5) Red light detection signal output from R-10 bow TECT
The Cr1T controller 15□ city 116[)l terminal T
The signal line 19 connects the green light detection signal G-DETECT which is output from the light pen 16 (the comparator twice iV% 26 ) to the controller 15.1. The system? +fU terminal y/ is connected to the Igo line.

IIIJ I'F', an example of the next VC-based IJJ,
*4.3 The timing of 1,000 yards is 81j<I! L
, I will explain 1. Now, CRT': 1 row -'715
H, 15□ jtill sub by CRT monitor 24. ．．
14. It is assumed that the normal screen display is performed at 1t1, and in this state, the operator displays the C1
4. Either display screen ((゛1ship #1fi)
i) From the display position of the upper C door S74 (Press the leading part of the light pen 16 to the seat (5, j position) a) and from the light pen 16 (switch times: 1 person 28) As shown in FIG. 3, a valid (logic "l") switch-on signal 8WON is output, "C", and this switch-on signal 8WON is output.
No. 5WON is connected to the CRT controller 151 via the signal line 17.4. fil terminal T
3 and CR'I' controller 15. Light pen!
jilJ (2 for lfll terminal T terminal, g3 Rikishu 1.
hand). With this) t, the CRT controller 151 stops the usual screen display and also turns on the light pen (detection 1[1.
As shown in FIG. As a result, each display (coordinates) on the CRT monitor 14
Light pen detection 1-1t no! 'Turn is even displayed in red, - Buha CRT controller 152 i
T! + 'j'j~'s (ii++ and the display screen stops and lights up) < y For detection/pattern, 1 image ('3 (signal G, converted to signal G and output to CRT monitor 14°, As a result, each of the positions 42 and 42 on the CRT monitor 14. is displayed with a light on (2) and a turn (different from the CRT monitor 14) in green.

Display when the operator presses the light pen 16: 1lii surface is the image of the CRT monitor 141! Assuming that it is the display surface, there is a mark written in red on the display position indicated by the light 16 on the surface of the collapsed shape display 1.
) The pen detection pattern is the optical sensor of the light pen 16.
2, the red light Koriyama (A; #R-L) ETECT is output (3rd). (See FIG. 4), this I-d R-DETECT is transmitted to the CRT controller 15 through the signal line 18 as a light wave il+lI f+tll If((, to the fourth child T8) υ
It will be destroyed. As a result, upper 11-wheel A;-R-1) E T
In response to ECT1. -(CRT Co7 to -La I, 5
.

The detection software 70 (not shown) in
coordinate position) is loaded into the light pen at1/threnostar (not shown). However, micro 0 rosetsusa 1 o
The light pen operation is detected on the CRT monitor 1 by the set output of the detection flip-flop in the CRT controller 151.
You can recognize what was done to 4.

Micro 0 Rosetsusa 1o is this 1 (L to Ninja Tsume q-shi
1\ζ At the same time, the contents held in the light pen address register in the CRT controller 15 (corresponding to the CRT monitor 14) are read. As a result, Microderose +) 1o
is indicated by the light pen 16 on the CRT monitor 14 . 1, which can correctly read the coordinates on the display screen of the CRT monitor 14. Assume that a light pen detection operation is performed for In this case, the switch-on signal 5 is output from the light pen 16 as in the case described above.
WON is output. Then, in response to this signal 5WON, the CRT controllers 15m, 15. Due to the control function 1, the CHi' monitor 141 displays a red light pen detection signal. The green light pen detection pattern is also displayed in "11".
It is the same as "Hago". CRT monitor 14. The light pen 4rb' is displayed in green on the CRT monitor 142, and the light pen 4rb' is displayed in green on the CRT monitor 142.
The output pattern is detected by the light sensor 22 of the light pen 16. As a result, active green light detection signals G-DF, TBC are output from the light pen 16 (contact/9 register circuit 26).
The output of T changes (see Figure 3). This signal G-1)E
TECT is the light pen 1 of the CRT controller 152
i l111+terminal T, which sets the detection flip-flop in the CRT controller 15□ and loads the current scan counter into the /)-writeven address l/raster. Therefore, the micro 7°0 setter 10 outputs the set output of the detection flip 70 in the CRT controller 152, and the light pen operation is performed on the CRT monitor 14. According to the present embodiment, as shown in this example, the CI (T controller 15, the controller 15) is kept in the holding area of the controller as the specified l1lE d. For example, the microprocessor will be able to read the CRT monitor that has been operated using a light pen, without having to perform the conventional LU change specification Fji4 operation to notify the microprocessor which CRT monitor is being used by the operator. Monitor! j((('M can be identified.Moreover) 1jR1+ Another thing to do is to check the state of the detection flip-flop in the 3CRT monitor, and check the display period of the light pen detection/gturn like There is no need for complicated processing such as setting the light output 1 to each CRT monitor 111 or monitoring the light 1 output timing.Furthermore, according to Makoto Motsuma and β11, the light bend detection/ Since there is no need to change the ('-mi-indication'J) 1i=r+ (display time zone) of the turn for each CRT monitor, the time it takes to pick up the light pen is significantly shortened. According to this practical example, as mentioned above, it is possible to switch between which CRT monitor is being used.
Since it is not inevitable to create a fixed 1.■, there is no need for a separate circuit. ~13
4. The reliability is improved as above. History Book<In,
+)ll, the above-mentioned specifying operation is unnecessary, and the fourth
(simply write on the display screen of the desired CRT monitor)
Since it is only necessary to press the ON button, the stem cropping efficiency is improved.

In addition, in the example of the fourth example, the case where the present invention was applied to a system equipped with 92 color CRT monitors was explained. It is. For example, in the case of a system with 3 color CRT monitors (4il+), each CRT monitor displays Jl<color, A, and 4-color light pen detection patterns (in addition to 4 colors, a blue light pen detection pattern is displayed). Its ii effect is given, and f, 4 < 2 of the figure (＾ Mortar/pigeon [11'' color light 7 is identified t7 and the corresponding blue light 5 ('extension signal B-]) E
'r All you need is one light pen equipped with a circuit that outputs IHCT. Then, in response to the switch-on signal SW ON from the light pen, each of the three CRT monitors may display a light detection/e turn in a different color. In addition, in order to apply it to a system with 11ft of color CRT monitors or more, it is necessary to
In addition to the red, green, and 11-color display function for light ben detection on the monitor, the
The colors obtained by combining, such as cyan (green), yellow (
Indication of the pattern for protruding the light pen 4 such as purple (red + white), 4% 'le'.
) S1Δ light detection signal R-1) ETECT and green light detection signal 0-1) E T I (AND output with CT is used as yellow light detection signal Y-J) ETECT, and this signal Y
- signal R-J) gTEcT if DBTECT is enabled
, G-1) It is sufficient to use a CRT controller that can distinguish various colors by means such as stopping the output of E T B CT as a behavioral signal. It is not necessary to have the light of the color of revenge J attack (for detecting / or the 11th rule of flying at the end of the turn. However, each C
The RT controller displays 1 color for each of the 4 turns. For only +1+<, its color must be different between all CRT controllers. Further, the present invention provides 1. system using a color HT monitor. I4Radito-1 also applies to systems using color display monitors such as color LCD monitors]
1. [Effect of the invention] According to the present invention, 1Ji can be used for both purposes.
Special operator operation +'r to specify the target display monitor 4' while (') on the first floor,
jz row... Even if you don't have to do it, you can use one light pen to pick up the light pen at any position on page 01 of the color display monitor.
The time required to do so can be significantly shortened.

[Brief explanation of the drawing]

Figure 41 shows the first example of the present invention, and Figure 2 shows the light pen 111zl.+ in the above example.
The block diagram shown in Figure 3 is the timing diagram of 1,000 yards. 1o...Microprocessor, J 4, + 142
...Color c RT monitor (CRT monitor), 15 (
, 15y...CRT controller, 16...Light pen, 21.22... Optical sensor (medium color power lar sensor).

Claims (1)

[Claims] In a system equipped with an M9i color display monitor, the system generates a pen switch-on signal in response to a pen operation, identifies the color of the picked-up light, and outputs a corresponding color identification signal. and means for displaying the A' turn for light pen detection in predetermined different display colors on the plurality of color display monitors in response to a switch-on signal from the light pen;
A light pen switching 1tjlln111 method characterized in that the method 13 identifies the color display monitor that is the object of the pen operation based on the color identification signal from the light pen. (2) The above-mentioned light ben is a monochromatic color sensor that identifies a specific color, and is equipped with iM number of 1'n color color sensors, each of which has a different color for identification purposes. Range'FJS1 entry 11ζ(
Light pen switch 4! υ method −