Screen coding embedded information communication device

A technology of information communication and coding, applied in the direction of cooperative devices, instruments, computer parts, etc., can solve the hidden danger of confidentiality and other problems, achieve reliable performance, promote the development of the whole society, and have the effect of simple structure

Inactive Publication Date: 2008-01-23
天津市阿波罗信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the hidden danger of confidentiality in the transmission and communication of traditional confidential documents, and to provide a screen code embedded information communication device that can control only legal readers to read through a dedicated confidential terminal

Method used

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  • Screen coding embedded information communication device
  • Screen coding embedded information communication device

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0022] Example 1: Central processing unit CPU3-1, through function selection interface 3-8, when obtaining the command of screen coding information transmission, the program in the fixed memory 3-10 is first read from the human body code recognizer interface 3-3 The human body code of the sender is combined with the code of the authorized person embedded in the file by the screen code in advance, and if the same result is obtained, the standard or specific computer code can be sent through the interface 3-6 of the encryptor. Enter the interface conversion of the encryptor 1-6 in the interface converter of the encryptor 1-5, until the information is launched. Otherwise the program in the non-volatile memory 3-10 will issue a command to deny the launch. Here, the circuit 3 of the screen code microprocessor 1-1, 2-1 can be a microprocessor for the screen code transmitting terminal.

example 2

[0023] Example 2: when the central processing unit CPU3-1 obtains the command of the screen coding information display through the function selection interface 3-8, similarly, the program in the fixed memory 3-10 is first read from the human body code recognizer interface 3-3 Read the human body code of the reader, and combine it with the code of the authorizer embedded in the file with the screen code in advance. If a consistent result is obtained, the standard or specific computer code can be sent through the display interface 3-4. into the display for display. Otherwise the program in nonvolatile memory 3-10 will issue a command to refuse to display. Here, the circuit 3 of the screen coding microprocessors 1-1, 2-1 can also be a microprocessor for a screen coding display terminal.

[0024] The encrypted information received by the receiver 2-7 is decrypted by the decryptor 2-6 and becomes a standard computer code, and then sent to the circuit 3 of the screen coding micropr...

example 3

[0026]Example 3: when the central processing unit CPU3-1 obtains an order for screen coding information printing through the function selection interface 3-8, the program in the fixed memory 3-10 is first read from the human body code recognizer interface 3-3 The recipient's human body code is combined with the code of the authorizer embedded in the file with the screen code in advance, and if a consistent result is obtained, the program in the fixed memory 3-10 converts the standard computer code into the screen Encode and print out the received information in a covert way of screen coding through the printing interface 3-5. Otherwise the program in the fixed storage 3-10 will issue a command to refuse printing. Here, the circuit 3 of the screen code microprocessors 1-1, 2-1 may be a microprocessor for a screen code receiving terminal.

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Abstract

The related device comprises an emission part with a screen code MPU connected through I / O interface to an encryption device and then a transmitter, an image reader, a recognizer for human code, and a display; and a receive part with a receiver, a decipher device, and an I / O interface to connect the screen code MPU. This invention can close all the communication process, and has high security.

Description

technical field [0001] The invention relates to a communication device for automatically transmitting and receiving computer information printed on media and recorded in the form of graphic codes, that is, a screen code embedded information communication device. Background technique [0002] At present, in the field of information security research, the research on digital watermarking theory of embedding computer information in images printed on paper is very attractive. As a representative achievement in Japan, "Technology for Falsification Identification of Printed Documents Using Digital Watermarking" was published [Patent Publication 2003-209676]. This method uses information modules with different inclination angles to represent the information code "1" or "0". Through the calculation of classical Fourier transform, the information embedding method that identifies the propagation direction of the information module is the problem. The capacity of the record is very lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K17/00
Inventor 顾泽苍
Owner 天津市阿波罗信息技术有限公司
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