Detailed explanation of the most popular invisible

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Detailed explanation of invisible code digital anti-counterfeiting printing technology

the way is high, the devil is high, and the unscrupulous counterfeiting behavior puzzles the managers of the bill industry. Ordinary bills (such as tax bills) adopt the traditional analog form of special paper, special ink and other anti-counterfeiting means, which can no longer meet the requirements of current bill management and identification. A more high-tech, digital anti-counterfeiting technology has attracted the attention of users

breakthrough of digital anti-counterfeiting technology in the field of paper media

among the key technologies of bill anti-counterfeiting in China, ink and paper are mainly used to realize anti-counterfeiting, which not only requires to meet the needs of general public identification, but also meets the regulatory and arbitration role of government departments, and accurately distinguish the authenticity through the particularity and personalization of anti-counterfeiting information. This is also the new concept of modern anti-counterfeiting, that is, the combination of front-line public anti-counterfeiting, second-line instrument identification and third-line expert intelligent identification anti-counterfeiting, taking a comprehensive anti-counterfeiting path to help customers maintain industry-leading anti-counterfeiting technology through continuous innovation

to realize anti-counterfeiting on bill paper is the advantage of Apollo's anti-counterfeiting technology and a development direction of bill anti-counterfeiting. It is one of the most effective methods to fundamentally eliminate fake bills. Tianjin Apollo's screen coding technology (hereinafter referred to as invisible code) to avoid the instrument being under load for a long time is to realize the loading of personalized data of invisible code on paper media, which can be realized in the existing printing environment

as we all know, the existing anti-counterfeiting printing technology can usually be divided into dominant and recessive. Overt: it means that consumers can identify the true and false with the naked eye or temperature without the help of special tools, that is, light, that is, seamless steel pipes with a wall thickness greater than 1.2mm. Recessive: professionals use special tools to identify true and false. While solving the problem of consumers' visual identification, how to meet the inspection and identification of managers, but it is not easy to be forged, so that counterfeiters cannot copy bills in batches. Provide information support for quality traceability, recall and crackdown on counterfeiting for inspectors. At this point, the screen coding (hereinafter referred to as invisible code) technology of Tianjin Apollo company gives a perfect answer

the generation principle of this technology and the application of printing environment are described in detail below

the world's first information embedding stealth code

what technology is stealth code? In a word, recessive code is the world's first information embedding code considering the characteristics of printed screen. When you hear the information embedding code, you will definitely think of two-dimensional bar code. So what is the difference between invisible code and two-dimensional bar code? As we all know, printed matter depicts images through dots. However, on the surface of the printed matter, we can't see these dots with the naked eye. If we record the information by changing the geometric or physical form of these dots without changing the gray value of the dots, we can achieve the goal of not damaging the quality of the printed image and recording information in an invisible form to replace the bar code. The invisible code is developed based on this idea. For example, by changing different positions of points, changing directions, changing different shapes, or breaking points. By integrating several adjustments, the information can be well hidden in the image. Unlike QR code, it can embed a large amount of information without specific space

solid technical patent barriers and at the same time, it can also exempt two processing. It is the first to establish the industry standard

invisible code. Internationally and in China, it is a technology and product with high patent protection barriers. Its code data can reach more than 300 megabytes. Moreover, the code is not open and international management is achieved. Therefore, the code we provide to our customers is the only code representing the identity of each customer, with high security. Moreover, our patent barrier will make the application in this field more advantageous. So far, Apollo has applied for a total of 74 patents, including 64 domestic patents in China, 7 domestic patents in Japan, 1 U.S. patent and 3 PCT patents

since Apollo Japan has long served the world's top 500 enterprises, we have worked on patent protection for more than ten years. In the field of dot matrix code for recording information in printed images, early Fuji Xerox in Japan proposed the description of single bit information using different directions, shapes, sizes and positions of dot matrix geometry. In 2000, Ricoh in Japan obtained a patent in different directions, and Oki in Japan obtained a physical description of information through different propagation directions. At that time, Apollo obtained the patents of multi bit information description in different directions, shapes, sizes and positions, as well as the patents of recording information through different phase modulation methods, which ranked first in the field of international dot matrix code, Even the patents of the internationally famous Anoto company in Sweden and grid company in Japan are only a specific patent under the patents of different positions proposed by us, which are restricted by our patents. In particular, we have an exclusive patent in the world on the use of stealth codes to achieve digital anti-counterfeiting. In January, 2008, the National Bureau of quality supervision and the National Standardization Commission jointly approved the project and issued the national standard formulation plan for the technical requirements of the printer and copier information security scope function with screen coding as the technical core. The project has been completed and published to the international printer and copying industry in September, 2008

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