Optical-acoustic conversion method and reader for bar code information

Abstract

The invention discloses a photo-acoustic conversion method for bar code information and a reader thereof. In the method, a bar code information base is constructed according to the phonation of speeches, and each speech with the same tone is provided with a bar code; a speech base is constructed, and corresponding relationships are constructed between each speech in the speech base and the bar code; in a recognition method for information carriers using the bar codes, an optical scanning way is adopted for scanning and transmitting the bar codes, corresponding speech positions are searched according to a processed structure, the speeches in the speech base are used, and a playing device is used for converting speech data into sound signals; the processing are successively implemented on the scanned bar codes to realize the photo-acoustic conversion of the bar code information. The reader comprises an optical scanning and preprocessing component, a register, a data distributer, a memory and a speech processor. The coding information of the bar codes is converted into audible sound information by the invention, and the functions of the bar codes are expanded.

Description

technical field [0001] The invention relates to identification and conversion of barcode information, in particular to a method for converting barcode information into voice information through photoacoustics, and a barcode information reader realized by the method. Background technique [0002] The most common barcode reader at present is usually composed of a scanning component, a software identification module and a data processing module. The marked barcode is scanned and information is transmitted, and then processed by a computer as text output or digital statistics; there are also barcode readers equipped with memory, digital processing circuits, and display screens that combine English and Chinese text translation devices. They are processed as visible text or digital information after barcode scanning and transmission. [0003] Therefore, the identification application of barcode information is limited, and it is difficult to use in the occasion where it is inconve...

AI Technical Summary

Problems solved by technology

[0003] Therefore, the identification application of barcode information is limited, and it is difficult to use in situations where it is inconvenient to use a computer or to read the displayed information, and the visually impaired cannot obtain the required information through the barcode reader

[0004] On the other hand, if it is necessary to convert the information obtained by the barcode reader into a voice signal, there are two common ideas: one is to establish a special vocabulary, match a certain barcode with the corresponding vocabulary, and then When using the barcode, call the voice information of the corresponding vocabulary from the vocabulary library to realize the pronunciation. This method is only suitable for some specific applications and cannot be popularized. The corresponding barcode reader is not universal; Barcode information is converted into corresponding text information first, and then converted into voice signals by text-to-speech conversion system. In this way, the amount of data to be processed when converting voice signals is large, and the information that can be stored in the corresponding barcode is limited, so Not suitable for small portable devices

Images