Two-dimensional code, printed publication applying the two-dimensional code and decoding process

Abstract

The invention discloses a two-dimensional code, printed publication using the two-dimensional code and a decoding method. The two-dimensional code is characterized in that rectangular code symbol includes a code unit with different optical reflectivity arranged on a substrate; the code units in the code symbol are solid round dots arranged at equal distance; the units at four corners of the code symbol are location dots for border location and recognition, and the rest units are data dots; and the area of the location dots are larger than that of the data dots. The two-dimensional code can form images under the condition of deep defocusing, and has the advantages of rapid data reading, high reliability, low requirement for reading equipment and wide application.

Description

[0001] The present invention application is a divisional application of the patent application 200610156879.4 "two-dimensional code and its decoding method, and printed publications using the two-dimensional code". The filing date of the original application is November 16, 2006. 【Technical field】 [0002] The invention relates to a two-dimensional code, its application on printed publications and a decoding method. 【Background technique】 [0003] It is customary for people to read traditional publications such as books and newspapers with their eyes. After a long time, the eyes are prone to fatigue. This way of obtaining information is relatively boring, and blind people or people with eye diseases cannot read such traditional publications. For this reason, voice reading publications have appeared in recent years. Using a two-dimensional code voice reading device, the content in a book can be decoded and pronounced for readers to listen to, which improves the efficiency of r...

AI Technical Summary

Problems solved by technology

This kind of clear code can only appear in the blank space of the layout, usually in the form of a single code, which will more or less affect the beauty of the layout

And in order to make the clear code easy to be found, the clear code is usually printed larger, so that although the printing accuracy is low, when reading, the reading head of the reader is required to have a larger opening

[0005] The two-dimensional code audio reading devices that have appeared on the market use conventional two-dimensional codes to identify the pronunciation position, and the number of pronunciation indexes is limited, causing different publications to share the same coding code, so that the pronunciation files in the reading device correspond to the target publications , there is confusion in reading the pronunciation content

Images