JPS5878277A - Optical character reader - Google Patents

Abstract

PURPOSE:To read efficiently data of a form where data are recorded in various character types, by selecting a prescribed dictionary in accordance with the character type designating code recorded on the form to recognize characters of recorded data. CONSTITUTION:A form 10 is provided with a read data recording area 11, where data to be read is recorded in one of plural kinds of character types which are determined preliminarily, and a character type designation information recording area 12 where character type designating information peculiar to the character type of data recorded in the area 11 is recorded. The pattern of the area 12 of the form 10 is read in a photoelectric converting part 105, and next, the pattern of the area 11 is read. This character pattern data is subjected to pattern recognition in one-character units in a character recognizing part 107, and a prescribed dictionary in a dictionary 104 is refered to recognize the pattern of the area 11. The character code resulting from this pattern recognition is stored in an answer buffer 108 successively.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an optical character reading system (9km) that can handle multiple types of books Jl type in which the fonts of recorded data are different.

The conventional optical character reading device (hereinafter referred to as 00R) reads the printed characters recorded (printed or blanked) on a form according to the font specified in advance by format control information (hereinafter referred to as FC). is being carried out.

Therefore, conventionally, the typefaces recorded on each of the plurality of forms to be stored are in the font specified by the FC.
x character 1 & with high reading accuracy! ! ! However, when reading a form with a so-called mixed font including a form in which fonts other than those specified by the PC are recorded, the reading vPIt! This had the disadvantage of causing a significant decrease in L.

In addition, in recent years, with the spread of orchid typewriters,
There has been a strong desire for an OOR that can handle not only type printed with a specific printing device such as a line printer, but also multiple types of forms printed with different fonts printed with other printing devices.

The present invention was made in view of the above-mentioned circumstances, and an object of the present invention is to provide an optical X-shaped reading device that can read a mixture of multiple types of forms in which the fonts of recorded data are different with high reading accuracy. shall be.

An embodiment of the present invention will be described below with reference to the following. 1st
The figure shows an example of the format of a form used in Embodiment 1 of the present invention.

In the figure, 10 is a form to be read by OOR.

11 is a reading data log area (hereinafter referred to as data area) where data to be read is printed (or printed);
2 is this data area 11 (2) A font/object information recording area in which a font designation code for specifying the font of recorded data (printed characters) is recorded (hereinafter referred to as the font code area).
There is vtヮ, and Mi
The fonts and characters that can be used are recorded from 2.Here, the 3-digit numerical code
data area 11 (in which two font designation codes are recorded).

Figure 2 is a block diagram showing the internal circuit components of the OOR in the embodiment of the present invention. , 102 is this μm0PUJ
ROM in which OJ control microprogram is stored;
A RAM 703 is used as a work area for the μm0PUJ OX. 104 is handled by this OOR. 11: Dictionary of n-+ possible fonts (hereinafter -FO-N)
(referred to as T) J 04. ．． 104. ．． 104°...10
4m, each D-FONT104゜, 104
1,104-... Each 104m has a unique font (=
A character-textile dictionary memory in which X-character recognition data is stored (
(hereinafter referred to as DPM).

105 is an optical conversion unit that reads the character pattern of the book $10;
A line buffer 106 stores pattern data read by the photoelectric conversion unit 105 in units of rows. 1
01 is Line Nokutuhua JOgl: Receives stored pattern data.

l\\ obtained by cutting out characters: X-character pattern data for each character is sequentially x-character ili! ! This is a part of the X-shaped character that will be discussed. xorR is a font code register that stores the contents of the font code area 12 read by this X character recognition unit 107, and the contents of this font code register 1orR (=therefore,
Between the X character and the data area 11 of the form 10, the width of the X character is 81M104, which is one D-FONT.
Select and specify 1041. In other words, each of the same characters in the font code register 101R is the D-FONT index value when DFMJ74P'i (:, :11 is subtracted) when the data area 11i of the form 10 is recorded. In addition, in the direct value of the character gmm in the font code area 12, the X character &! Execute !i!!!III of the pattern and store the numerical data in the font code register 10r.
Bi: Save.

108 is 1 &! ! An answer buffer 109 for storing processed data, that is, answers, is an external interface unit for transmitting and receiving data to and from an external device. , 1'10 is a system bus used for transferring data addresses and control information.

Now, the operation of the real example will be explained. In the book $10 to be read with 00R, a font code unique to the font of data recorded in the data area 11 is preliminarily recorded in the font code area 12 (=recorded (written or printed) in this form 10. is a reading scanning unit (not shown) from the document feed mechanism seat (
Under the control of μm0 PUI 01, the photoelectric conversion unit 105I first reads the pattern in the font code area 12, and then reads the pattern in the data area 11.
The pattern is read.

The x-shaped pattern data read by the photoelectric converter 105 is stored in the line buffer 1'06 in units of lines, and then sent to the character recognition unit 107 (2) at the IX character position.
Pattern controlled. Here, the x-shaped line part 107 inputs the 9-character pattern data in the font code area 12Q;
Pre-added specific D-FO of 071M104 (c)
Character recognition of the above numeric pattern is performed with reference to NT104°, and the numeric data of the recognized font designation code is latched to 0 in the font code register J67R4m.
Next C:, character 9IiIi1 part 101 is data area 11
When receiving the pattern data, the font code register 10
Contents of 7R C-1 D-FO of % DFM 104 yen according to
Follow NTJ 041.

The pattern ll1l#11 of data area 11 is performed with reference to the D-FONT 1'041.
8 (= is stored. Such a character g recognition operation by specifying the font for each form is repeated every time the 6 books #410... are sharpened.

As mentioned above, when reading the 6 forms w410..., the font 10I' - recorded font designation code (=
Therefore, select D-FONTJ 041 and create the same form 10.
By configuring the above ('''-1-1 The reading accuracy can be significantly improved.

As described in detail above, according to the present invention, it is possible to provide an optical character reading device that can perform mixed reading of multiple tIIia forms in which recorded data have different fonts with high reading accuracy.

[Brief explanation of the drawing]

Figures 1 and 2 are for explaining one embodiment of the present invention, and Figure IJ1 is Figure 51 showing an example of the format of a form.
Figure 11%2 is a block diagram showing the internal configuration of the OOR device. 10... Form, 11... Read data recording area (data area), ``12... Font designation information recording area (font code area), 101... Microprocessor (μ
m0'PU), 707...I'LOM. 103...RAM, J04...X character recognition dictionary memory (DFM), 104. ．． 104. ．． 104@=・10
4m...Dictionary (D-FONT), 105...Photoelectric conversion unit, 106...Line buffer% Iol...'
Y character g-m, 101R... font code register, 1o
8...Answer, Tsufa. Representative Patent Attorney Takehiko Suzue Figure 1 Figure 2 04 ■

Claims (1)

[Scope of Claims] A read data recording area in which animal increase data is recorded in an arbitrary font out of a plurality of predetermined fonts; a font designation information recording area in which font designation information of the plurality of fonts is recorded; According to the reading result of the font designation information, from the # mark multiple x characters g - font 1 = unique X specified by the font designation information
A dictionary selection means for selecting a character @ dictionary, and a part M for performing XF verification of data recorded in the read data recording area of the form using the selected character recognition dictionary. An optical character reading XI2 device characterized by: