JPH0418349B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention The present invention relates to an optical pattern input device.

Prior Art Conventional optical pattern input devices include those in which the pattern scanning direction on the surface of an input medium is constant and the orientation of the input area within the medium is uniquely determined by the scanning direction, or those in which the pattern scanning direction on the medium surface is determined uniquely by the scanning direction. There are some that change the direction of the input area by making themselves variable.

However, the former has the disadvantage that it is not suitable as an input device even though the orientation of the input area is mixed, and the latter has the disadvantage that the scanning direction control mechanism and circuit system are complicated.

Purpose of the Invention It is an object of the present invention to input area input information in which the scanning direction is constant and direction correction is performed by giving necessary rotation to the input area according to the orientation definition for each of a plurality of input areas in which characters are arranged in different directions. An object of the present invention is to provide a pattern input device with a high degree of freedom in creating data.

Embodiment of the Invention An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is an input recording medium, 3,
4, 5, 6, 7 indicate the required input areas on the medium,
2 are scanned in the same direction, but with respect to the pattern arrangement orientation of regions 3 and 4, region 5 is rotated 90 degrees to the left, region 6 is rotated 90 degrees to the right, and region 7 is rotated 180 degrees to perform photoelectric conversion. Indicates what will be done. The patterns taken into the 11 pattern memories by the photoelectric conversion device shown in FIG. 2 and 8 in the same direction as shown in FIG.
Based on the control signal 20 from the input area control device No. 12, data for one area is extracted by the input area cutting device No. 9 from the range information of one area that needs to be input. Next, for this one area of data, 12
In response to the rotation instruction signal 21 output from the input area control device, the ten data rotation devices rotate in the instructed direction, thereby producing input data 13 for one area.

FIG. 3 shows a more specific example of data rotation.
Consider a binary black and white bit pattern 30 as input one-area cutout data. As a rotation control signal for this area, a rotation direction of 90 degrees to the right, an area height Hi, and an area width Wi are given, and 31 rotation bit patterns are given. The rotation parameters of this rotation control signal are registered for each region, for example, as in the parameter table shown in FIG. 4. The rotation parameter is given to the rotation direction according to each cut out input region, and is set to, for example, no rotation, 90° to the right, 90° to the left, 180°, etc. The parameters shown in FIG. 4 include rotation parameters, area height, and area width.

FIG. 5 shows a specific example of the data rotation device.
In this example, to simplify the explanation, we will consider a binary black and white bit pattern as the input area cutout data 30, but it goes without saying that it is also possible to apply it to run-length encoded data, etc. .

From the rotation parameters specified by signal 21,
In the rotation control logic section 55, the rotation direction, area height,
Depending on the area width, the read control signal 101, read line,
Column address 104, data inversion signal 102, write control signal 103, write row, column address 105
occurs. The data reading circuit 50 outputs one row or one column of data designated by signals 101 and 104 to a row reading buffer 60 or a column reading buffer 61 and outputting it to a reading 201, as shown in FIG. As shown in FIG. 7, the data inversion circuit 51 converts the data input to the shift register 62 into
The data is reversed in accordance with the reverse signal 102 or is output as is through the read data buffer 63 to 202 .
The data write circuit No. 52 is as shown in FIG.
A signal 103 selects whether to write in row units or column units, and writes to a write address 105. With this circuit configuration, when the area rotation parameter specifies 90° clockwise rotation, 101 column units,
104 is read from the first column, 102 is reversed, 1
This is achieved by writing 03 in row units, 105 in writing from the first row, and transferring the column data of the width of the area to output 31. When specifying 90° counterclockwise rotation, 101 in column units and 104 in writing from the last column. This is achieved by setting 102 to non-reversal, 103 to line by line, and 105 to writing from the first line.If 180° rotation is specified, 10
1 for each column, 104 for reading from the last column, 10
2 is reversed, 103 is column-by-column, 105 is writing from the first column, and the column data of the width of the area is transferred to the output 31, and in the case of no rotation, 101 is column-by-column, 104 is written from the first column. This can be realized by setting 102 to non-inversion, 103 to column units, and 105 to writing from the first column. From this configuration, 101,
With another combination of selections 102, 103, 104,
It is also easy to achieve the same rotation function.

This method is also suitable for implementation as program logic.

Effects of the Invention According to the present invention, for each input area on an input medium,
Since the rotation direction can be selected according to each input area by specifying the parameter that gives the orientation, in the unidirectional scanning photoelectric conversion input method on the input medium surface, multiple areas with different orientations within one medium can be input in the same direction. This has the effect of improving the degree of freedom in pattern input.

[Brief explanation of drawings]

Fig. 1 is a diagram showing the input medium, input area, and scanning direction, Fig. 2 is a configuration diagram of this device, Fig. 3 is a diagram showing input area data and rotation data, and Fig. 4 is a diagram showing input area rotation parameters. 5 is a configuration diagram of a data rotation device, FIG. 6 is a diagram showing a data reading circuit, FIG. 7 is a diagram showing a data reversing circuit, and FIG. 8 is a diagram showing a data reversing circuit.
The figure shows a data write circuit. DESCRIPTION OF SYMBOLS 10...Data rotation device, 50...Data read circuit, 51...Data inversion circuit, 52...Data write circuit, 55...Rotation control logic unit.

Claims (1)

[Claims] 1. A photoelectric conversion means that optically scans and outputs a pattern on a form having a plurality of character areas in which characters are written in different directions within the same form, and a memory that stores the output of the photoelectric conversion means for each form; Store in advance a cutout area in which the character arrays of the patterns stored in the memory are aligned in the same direction, and correction information for rotating the character arrays of each cut out pattern so that the orientations of the character arrays are aligned in the same form. input area setting means; a cutting means for cutting out and outputting the pattern stored in the memory according to the cutting area stored in the input area setting means; and a cutting means for cutting out and outputting the pattern stored in the memory according to the cutting area stored in the input area setting means; An optical pattern input device further comprising data rotation means for correcting the pattern output from the cutting means in one of predetermined rotation directions and outputting the corrected pattern.