JPS58142485A - Mark slip and its read system - Google Patents

Abstract

PURPOSE:To improve readout precision remarkably and to relax the limit of a mark entry position, by coloring the groun in dropout color and providing data marks at all mark entry positions in a data area previously. CONSTITUTION:A slip 1a is provided with a colored part 3a in drouput color for showing the range of the data area and at all mark positions in the data area, positive marks 5a in black are printed previously. A person who enters data paints marks 5a with a white opaque paint to form negative marks. To read this slip 1a of said constitution through a mark document reader, the switch 14 of a circuit is set at a side (a). In this case, actual data is 0 at the stage of an output signal E', so this is inverted by a bistable circuit 12 and a gate circuit 13 to obtain data pulses G. The use of this slip stabilizes a read signal waveform because the marks 5a are printed correctly.

Description

DETAILED DESCRIPTION OF THE INVENTION 1. Field of the Invention The present invention relates to a marked form and a method for reading the same, and more particularly to a marked form and a method for reading the same in which the input method is improved to improve data reliability.

Prior Art Conventional mark form c (hereinafter simply referred to as ``cho-'') is 笥1
As shown in Figures (A) and (B) (Figure 1 (E) is an enlarged view of a part of Figure 1 (A)), a white background of a card or sheet-like recording medium is shown. Then, a format is printed using dropout color, and a black timing mark is printed in correspondence with the data mark entry position, and a mark is written on this using a black ship 1th clam. The reading device that reads the marks on the form detects the mark with the specified surface #* at the specified density, generates a reading signal, and then reads the mark for each column from the timing mark printed for each column. A read zone' having a constant width is set, and of the read signals, only those within the read zone are established as data, and those outside the read zone are discarded as noise. In Figures 1 (^) and (2), 3 is a frame indicating the data area printed in dropout color on the form L, and 4 is a frame indicating the mark entry position also printed by dropout color. , 6 are data marks written in the entry frame.

FIG. 2 shows the main parts of a conventional form reading device, and FIG. 3 shows its output signal waveform. In this example, a timing mark 2 is printed on the form L, from which a timing signal Bf is obtained, and a photoelectric conversion element 8 reads this and the data mark.
After the output is amplified by the amplifier circuit 9 (signal O), the data mark signal whose waveform has been adjusted by the slice forming circuit 10 is generated by the AND gate 11 and the AND signal IC1, thereby establishing the data. It is something.

There are cases where the tie-pointing signal B is not a timing mark but is generated by the timing generation mechanism of the mark reading device itself. Due to the inclination (skew), the timing signal and the data signal are out of phase and are not established as data (missing reading), or data is transferred to an adjacent column (data garbled). For this reason, although the recording density of the form is reduced, the sheet format is set at approximately twice the writing interval of the marks as fI-80 column perforated card, and the lead zone (timing mark signal) wh We are discussing countermeasures such as increasing the force.

On the other hand, 4:2 for the person writing the mark, as stated by KO, the frame 41 indicating the mark r person position It is printed in advance in drop-out color, and the person writing the mark ′ is instructed to write accurately within the frame. (See #1 in Figure (B)).

However, in reality, there are often marks outside the tolerance I11 - those that are not within the predetermined entry frame, density.

Omitted items with inappropriate thickness and length, example t-$4 (a)
t). In addition, h) is a preferable mark, li (b) and below are defective marks ((b) is a diagonal mark, (c) is a left-right misalignment mark, ni) is a vertical misalignment mark, ←) is a short mark, (to) is a thin mark, (
(G) indicates a round mark, (A) indicates a thick mark, (A) indicates a thin mark, (A) indicates an unerased mark, and (F) indicates a dirt). There is a problem that - is written and reading failure occurs.

Although these problems exist, the mark input method is relatively easy to learn compared to other input methods, and data can be entered without the need for special equipment, making it suitable for non-specific input methods. This method can be said to be optimal for having a large number of people create input data, and therefore, it is strongly desired to solve the above-mentioned problems.

The present invention has been made in view of the above circumstances, and its purpose is to solve the above-mentioned problems in the conventional mark input method, and to improve the reliability of input data created by an unspecified number of people. The purpose of the present invention is to provide a complete mark input method that makes it possible to read marks.

The above-mentioned object of the present invention is to color the ground color with a dropout color in a form that records mark codes on a card or a sheet-like recording medium, and to place all marks in the data area in advance. A form characterized by having a data mark provided thereon, and the data mark (
In a form reading device that reads a positive mark) and a negative mark formed by filling in the data mark with a photoelectric marking, after the reading signals of the positive mark and negative mark are digitally encoded. , a means for inverting the '0' and '1' is provided, and the positive mark t is set as 'no data' and the negative mark is set as 'data present', and the data is transferred to the host device. This is achieved by the method.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Figure 6) and (B) are views showing an example of a form according to the present invention. , 2 is a pre-printed black timing mark, 3 & is a drop-out to indicate *St in the data area, a gold-plated part with a color, and 5a is a black positive mark pre-printed at all mark positions in the data area. It's a mark. Further, 6 is a negative mark (actual data) formed by filling in the positive mark with white opaque paint by the data entry person. Here, the colored part 3&
It is necessary to select a color tone and density that will create an appropriate contrast between the sharp tape mark and the negative mark so that the person writing the negative mark can easily see both. There is. According to experiments, when coloring red, a POS value (paper reflectance - mark reflectance) of 7 is sufficient for the reflectance of paper to be around 0.05 (acceptable POg value of dropout color of 0.1).
2 or less).

11 and 6 are diagrams showing the main parts of the form reading device according to the present invention, and FIG. 7 is a diagram showing its output signal waveform.

Reference numerals 8 to 11 have the same configuration as shown in Figure 2! The blank tube is shown, 12 is set by the output of AND gate 11, and timing mark waveform B and leading edge pulse (TM IIC-P
), 13 is the bistable circuit 12
output 1 and timing mark waveform (trailing edge pulse of B' (
TM Tl-P), and 14 is a form of a form (conventional form or form of the present invention).
This is a read mode switch that can be selected according to the

As is clear from FIG. 6, when the switch 14 is set to the b side, the reading circuit of the device of this embodiment is the same as the circuit shown in FIG. 2, and when the switch 14 is set to the a side. In this case, the circuit outputs the 0'' and 1'' outputs of the circuit inverted. That is, in the case of the form according to the present invention, the actual data (negative mark) is 0'' at the stage of the output signal
By inverting ", 0", data pulse G is finally obtained. This corresponds to data pulse E in Figure 3.
The first effect of the above embodiment is that the reading mark 5a
is printed accurately and uniformly, so the read signal waveform is 0.
The point is that the wave height value, wave value, and time interval are all extremely stable, and the necessary and sufficient values are ensured. The causes of variations in the read signal waveform are variations in the marks written,
One example is the inclination (skew) of the form when it is run, but most of this is due to variations in the one-person mark, so
The reading mark is at the standard value (for example, width 0.5m, length 5cm).

If the card is printed with a PoB value of 0.6 or higher, it is easy to achieve a reading reliability close to that of a punch card.

On the other hand, the white negative mark 6 only needs to be filled in so that the black reading mark 5m disappears, and reading performance is not affected no matter what shape it is filled in as long as it does not interfere with the adjacent reading mark. The writing utensil, paper, and opaque water-based paint used for this purpose can be the same as the correction fluid used in dry copying machines. According to the results of the experiment - Black reading! - By lightly running the same brush over the
It turned out that the purpose could be achieved and that there would be no negative impact on the person who filled it out. From the above, handwritten negative
The quality of the mark is much more redundant than the conventional handwritten positive mark using a black pencil, and it can be seen that anyone can easily and sufficiently mark the mark.

In addition, the reading circuit of the above embodiment device has a signal inverting circuit (consisting of a front IF bistable circuit 12 and a gate circuit 13) added to the conventional reading circuit, and the presence or absence of signal inversion can be selected by the changeover switch 1. Therefore, not only can the conventional method of reading a document and the document reading according to the present invention be performed continuously, but even in a document containing data from both methods, a switching mark can be provided on the document to switch the document. It is possible to perform the reading by automatically generating a signal.

In addition, the conventional form reading device (equipment shown in Figure 2)
t- It is also possible to use it as is. That is,
As long as the user program performs the inversion of the signal, it is possible to perform all readings of a series according to the present invention.

As mentioned above, when data from both the conventional method and the method of the present invention are mixed on a single document, for example, when printing buri marks with a line printer, the buri mark area is printed using the conventional method, and the handwritten mark area is printed using the original method. It is conceivable to make it a method of invention.

In the first embodiment, an example of a reading circuit that establishes data based on all the timing marks printed in advance on the form was demonstrated, but in the form according to the present invention, it is possible to establish data from the positive data mark printed in advance on the form. You can easily create a timing pulse, so the timing on the report! - can be omitted in connection with the twilling circuit. Similarly, positive data on the ledger! It is also possible to check the reading element and the slanted running of the form by using this function.

In other words, if there is no output from the reading element in each column on the form, the reading element is abnormal, and if at least two or more positive data marks remain in the same column on the form, there is a time difference. A peak method can be used that determines whether the seat is tilted abnormally when a predetermined level is achieved. This makes it possible to omit checkmarks for these purposes on the form.

By omitting the timing mark and the check-only mark, the space utilization efficiency of the form is improved.

As described above, according to the present invention, in a form in which mark codes are distributed on a recording medium such as a card or a sheet, the ground color is colored with a dropout color, and all marks in the data area are colored. A form that is characterized by having a data mark provided in advance at the entry position, a form that can be read in conjunction with the data mark (positive mark) on the form, and a negative mark that is filled in with a photoelectrically insensitive color. In the reading device, after digitally encoding the reading signals of the positive mark and the negative mark, a means is provided for inverting the read signals of the positive mark and the negative mark;
By providing a form reading method that is characterized by transferring data to the upper system as ``no V data'' or ``negative mark?'' or ``with data,'' it is possible to obtain a number of effects as shown below. .

Since the reading mark (positive mark) to be sensed by the α)+llF device is printed accurately and uniformly in advance, the reading accuracy is dramatically improved and the reliability of mark input is greatly improved. Printing accuracy is ±0.2■ for misalignment between data mark and timing mark, ±01■ for mark width, and ±3 for mark inclination.
0', and for the mark density, the POa value is ±0.0
5 is guaranteed, so a sufficient reading margin can be secured.

Furthermore, compared to the conventional case of reading handwritten positive marks, the accuracy of the parts of the reading device can be relaxed, so there is an effect that the cost of the device can be reduced.

In the 121-line method, the data is a white mark that is written to erase the printed reading mark, but this white mark can be painted over so that it is not detected by the reading device, and there are significant restrictions on the writing position. eased.

Since this is easy to ensure for an unspecified number of people filling out the form, the reliability of mark input is greatly improved. The P person condition for the platinum mark is ■Is the black mark in question? 11
1λ, ■Adjacent black mark? Part 2 of not erasing
Even if we compare the distance to the adjacent black mark (Tsuru 4 Ayu) with the mark entry frame (approximately 1.2 m) in the conventional method, it is difficult to enter the mark using this method. It is clear that this is an easy method.

(3) In the form mark entry method according to the present invention,
If the black mark is filled in completely white by mistake, it can be easily corrected by writing a black mark over the 0 mark with a pencil, and the problem of unerased parts is less likely to occur as with the conventional method. So, theta springs up due to this! , +(L, etc.) will not occur.In this sense as well, there is an effect of increasing the reliability of mark human power.

[Brief explanation of the drawings] Figure 1 (A) and (B) are diagrams showing conventional forms.
The figure shows an example of a conventional reading circuit, the third figure is its time chart, the fourth figure shows markings, and the δv! J
(A) and (B) are diagrams showing a form according to the present invention, FIG. 6 is a diagram showing a reading pigeon according to the present invention, and FIG. 7 is a diagram showing a liability time charge. 1.1a: Form, 2; Timing mark, 3. (
A) 34t data area, 4: mark entry frame, 6.5&
: data mark, 6: negative mark, 8: photoelectric conversion element, 9: amplification pigeon, 10 slice molding circuit, 11
: and game), 121 bistable circuit 13; and gauge %14: changeover switch. Figure 1 Cow Diagram (a)
to) (g) (chiu (su) (shi() (i→
Figure 5

Claims (1)

[Claims] (1) In a mark form in which mark codes are recorded on a card or sheet-like recording medium, the ground color is colored with a dropout color, and data marks are placed in advance at all mark entry positions in the data area. A marked form with a unique feature. ■A marked sheet consisting of data marks (positive marks) placed in advance at all mark entry positions in the data area, and negative marks made by filling in the data marks with a photoelectrically insensitive color. In the mark form reading device that reads the mark tube above, '#J positive! - negative mark reading signal i
After digital encoding, means are provided to invert the ``0'' and ``1'' to the positive mark t-''.
A mark characterized by converting a stem negative mark without data into "with data" and transmitting the data to the host device.
Vote reading method.