KR0175386B1 - Character and shape recognition device embedded in office automation equipment and document security method using this device - Google Patents

Abstract

The present invention relates to a character and a form recognition device embedded in an office automation device and a document security method using the device. The present invention relates to a special character recorded in a secret document for security of secret documents or the like in an office automation device such as a copy machine or a facsimile machine. The present invention relates to a text and form recognition device embedded in an office automation device that recognizes or permits copying or transmission of a form, and a document security method using the device.

Description

Character and shape recognition device embedded in office automation equipment and document security method using this device

1 is a view showing a conceptual diagram of an office automation device using a conventional optical sensing.

2 is a view showing a conceptual diagram of an office automation device using a conventional solid-state imaging device.

3 is a block diagram showing the configuration of a character and a form recognition device embedded in an office automation device according to an embodiment of the present invention.

4 is a diagram showing an example of applying a character and a form recognition device embedded in an office automation device according to an embodiment of the present invention to an office automation device using optical sensing.

5 is a view showing an example in which a character and a form recognition device incorporated in an office automation device according to an embodiment of the present invention are converted to an office automation device using a solid state image pickup device.

6 is a flowchart illustrating a document security method using a character and form recognition apparatus embedded in an office automation device according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

31: page memory 32: preprocessing unit

33: Scaling / rotating processing section 34: Pre-registered pattern section

35: pattern matching processing unit

The present invention relates to a device for recognizing characters and forms used in an office automation device and a document security method using the device. More specifically, the present invention relates to a secret document for security of secret documents or the like in an office automation device such as a copy machine or a facsimile machine. The present invention relates to a character and type recognition device embedded in an office automation device that recognizes or records a special written character or form, and to a document security method using the device.

In general, as office work becomes more complex and diverse, the spread of office automation equipment is gradually increasing, while security is becoming increasingly difficult. Copiers, for example, are almost always equipped with copiers in small offices, so you can always copy confidential documents.

Therefore, the conventional copier uses a method of printing important documents on a special sheet in order to prevent copying of documents that require confidentiality.

This special paper is designed to prevent copying by making the copy appear black enough to make the original unrecognizable, or the invisible markings appear on the original.

For reference, a conceptual diagram of a conventional office automation device is shown in FIGS. 1 and 2.

1 is a view showing a conceptual diagram of an office automation device using a conventional optical sensing.

1 is a conventional copier structure in which light reflected from a light source is reflected on a document to be copied, which is reflected by a lens and then scanned in a drum.

2 is a diagram illustrating a conceptual diagram of an office automation device using a solid-state imaging device.

2 is a conventional facsimile or electronic copier using a solid active element instead of the drum of the regeneration.

However, the above-described conventional method has a problem in that the cost of using a special paper increases, and that copying is not prevented in principle.

Accordingly, an object of the present invention is to solve the above-described problems, and to install a copy (in the case of a copying machine) by installing a device in an office automatic machine that recognizes a character and a form representing security in an original document requiring confidentiality, It is intended to provide a document security method using the device, which is a character and form recognition device embedded in an office automation device that automatically recognizes the device and prevents anyone from copying or transmitting documents when the transmission (fax) is attempted.

As a means for achieving the above object, the configuration of the present invention comprises a page memory for receiving serial data from any input device and storing one page, and the page described above. A pre-processing unit that receives data from the memory and removes the non-uniformity caused by the optical sensor from the data, and removes the non-uniformity caused by the light source. Scaling / Rotating Processing takes the data output from the pre-processing unit as an input, adjusts the size of the data to be uniform, and changes the angle so that the data is straight. Section, pre-Registered Patterns section for storing special characters and types of data indicating security, and the above scaling / The pattern matching processing unit detects whether the data input from the data processing unit contains data such as a special character or type indicating security and inputs the data from the pre-registered pattern unit. Is done.

As a means for achieving the above object, another configuration of the present invention comprises the steps of receiving one page of serial data from an input device, storing the same in a page memory, and in the preprocessing unit, data from the upper page memory. Receiving input, removing the non-uniformity caused by the optical sensor (GAmma Correction), removing the non-uniformity caused by the light source (Shadow Correction), and in the scaling / rotating processing unit, Receiving the data output from the pre-processing unit as an input, adjusting the size so that the size of the data is uniform, and changing the angle so that the data is straight, and in the pattern matching processing unit, the pre-registered pattern unit Scaling / rotating processing described above by importing special character or type data representing the stored security. Determining whether there is data such as a special character or type indicating security in the data inputted from the step; and in this step, a special character or type indicating security in the data input from the scaling / rotating processing unit described above. Outputting a control signal that permits copying / transmitting if there is no data such as the above, and in this step, data such as a special character or a form indicating security on the data input from the scaling / rotating processing unit is included. If so, according to the security level of the data (character and form), prohibiting copying / transmission, operating after storing the user identification number and contents, or outputting a control signal for operation after checking the identification number of the user. Is made of.

By the above configuration, the most preferred embodiment which can be easily carried out by those skilled in the art to which this invention belongs will be described in detail with reference to the accompanying drawings.

3 is a block diagram showing the configuration of a character and form recognition device built in an office automation device according to an embodiment of the present invention.

As shown in FIG. 3, the structure of the character and shape recognition device incorporated in the office automation device according to the embodiment of the present invention receives serial data from an ordinary solid-state image pickup device (not shown). The page memory 31 which stores the quantity and data are input from the above-mentioned page memory 31, and from this data, the non-uniformity produced by the optical sensor is removed (Gamma Correction), and the ratio by the light source is removed. The pre-processing unit 32 for shadow correction, and the data output from the pre-processing unit 32 as input, adjust the size so that the size of the data is equal, and make the data straight. A scaling / rotating processing unit 33 which serves to change the angle as much as possible, and pre-registered for storing data of a special character or type indicating security; A special character indicating security, inputted from the pre-registered pattern portion 34, to the data input from the pattern portion 34 and the scaling / rotating processing portion 33 described above. The pattern matching processing unit 35 detects whether there is data like a shape and outputs a control signal.

With the above configuration, the operation according to the embodiment of the present invention is as follows.

To copy a document (for a copy machine) or to send a document (for a fax) in an office automation machine, use the contrast of the document (typically, for documents with many letters, light is paper and dark is text). Detect.

The conventional method recognizes the information thus obtained simply as contrast (a good office device identifies the intensity of the contrast by several values, while an ordinary office device recognizes the contrast as simple black and white). This is because a method of reading a document reads line by line by scanning.

In this embodiment, the contrast information read line by line is stored in the semiconductor memory element, and then the operation of the office automation device is controlled by finding out whether there is the same character (or symbol) or form already stored.

Once the same is detected, the operation may be allowed in accordance with the allowed complementary handling of the office equipment user.

An embodiment according to the present invention will be described in more detail with reference to FIGS. 3 and 6.

The page memory 31 receives and stores one page of serial data from the input device when a normal solid state image pickup device generates a serial signal in a line sensing manner. (S10)

In the preprocessing unit 32 that receives data from the page memory 31, the non-uniformity generated by the optical sensor is removed from this data (Gamma Correction), and the non-uniformity caused by the light source is removed. (Shadow Correction). (S20)

The scaling / rotating processing unit 33 receives the data output from the pre-processing unit 32 as an input, adjusts the size so that the size of the data is equal, and changes the angle of the data straight. (S30)

After performing this pre-owning method, the pattern matching processing unit 35 imports data of a special character or form indicating security stored in the pre-registered pattern unit 34, It is determined whether the data input from the scaling / rotating processing unit 33 contains data such as a special character or a form indicating security. (S40)

In step S40, if the data input from the scaling / rotating processing unit 33 does not have data such as a special character or a form indicating security, the pattern matching processing unit 35 copies / transmits the data. Output a control signal to allow. (S50)

In the step S40, if the data input from the scaling / rotating processing section 33 contains data such as a special character or a form indicating security, the pattern matching processing section 35 displays data (characters). And a control signal for prohibiting copying / transmission, operating after storing the user's unique number and contents, or outputting a control signal after confirming the user's unique number. (S60)

In this way, the output of the pattern matching processing unit 35 is used to control the operation of the office automation device.

On the other hand, Figure 4 is an example of applying the character recognition device embedded in the office automation device according to an embodiment of the present invention to the office automation device (copier) using the light sensing, by separating the light emitted through the lens into two places After the conversion from the solid-state image pickup device to an electrical signal, the data is transferred to a character and shape recognition device. When the signal is recognized by the character and shape recognition device, a control signal may be generated to stop copying or may be used as a signal for confirming whether the copying card is identical to the copying card.

5 is an example in which the character and form recognition device incorporated in the office automation device according to the embodiment of the present invention is applied to an office automation device (facsimile or electronic copying machine) using a solid state image pickup device.

As described above, in the embodiment of the present invention, by fundamentally controlling the copying / transmission of documents, complete complementary control is possible compared to the conventional method, and there is an economic advantage that the maintenance cost is almost inferior to the conventional method, and In addition, it is possible to provide a character and form recognition device embedded in an office automation device that enables differentiation control according to security personnel by recognizing the type of security and a document security method using the device.

This effect of the present invention can be used in all office automation equipment.

Claims (2)

Page memory that receives serial data from a certain input device, stores one page, and receives data from the above page memory to remove non-uniformity caused by the optical sensor. And a pre-processing unit that removes the non-uniformity caused by the light source, and the data output from the pre-processing unit as an input, and adjusts the size so that the data is equal in size, and the data is A scaling / rotating processing unit for changing the angle so as to be correct, a pre-regitered pattern unit storing data of a special character or type indicating security, and Special data indicating security, input from the pre-registered pattern portion, to data input by one scaling / rotating processing portion. And a pattern matching processing unit for detecting the presence of data such as one character or form and outputting a control signal. Receiving one page of serial data from an input device and storing the same in page memory; and a pre-processing unit receiving data from the page memory and using the non-uniformity generated by the optical sensor from the data. Gamma Correction, Shadow Correction by the light source, and the scaling / rotating processing unit receives data output from the preprocessing unit as an input, and Adjusting the size of the to equal size, changing the angle so that the data is straight, and having a special character or type of data representing the security stored in the pre-registered pattern portion in the pattern matching processing portion. And special characters or forms that indicate security on the data entered from the scaling / rotating processing section described above. Determines whether there is data, and if the data input from the scaling / rotating processing unit in the step does not contain data such as a special character or type indicating security, a control signal for allowing copy / transmission is provided. Outputting, and in the step, if there is data such as a special character or type indicating security in the data input from the scaling / rotating processing unit, copying according to the security level of the data (character and type) / Characters and forms embedded in the office automation device comprising the step of outputting a control signal to prohibit the transmission, to operate after storing the user's unique number and contents, or to check the user's unique number Document security method using recognition device.