Article about what the bar code really is, how it is calculated and what it hides, so ingeniously. The numbers are represented by vertical lines and bars, with variable width, either black (which you easily see) or white (some of them you don't, like those at the margins). Those codes are said to make the work much easier, as there are used optical detectors to read the numbers. Each number is generated function of a product code.

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i need complete documentation and ppt for the topic qr codes for technical seminar .. please can any one help me with this... i neeed to submit the documentation tommorow. please mail to [email protected] ....etc

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could u plz post d detail seminar report on bar codes ....etc

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plz tell me the way to make the finger print scanning method..............plz reply me with the process and codes required to make finger print scanning system
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Error correction software for Bose-Chaudhuri-Hochquenghem (BCH) codes is optimized for general purpose processors that do not equip hardware for Galois field arithmetic. The developed software applies parallelization with a table lookup method to reduce the number of iterations, and maximum parallelization under a cache size limitation is sought for a high throughput implementation. Since this method minimizes the number of lookup tables for encoding and decoding processes, a large parallel factor can be chosen for a given cache size.The naive ....etc

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Turbo Codes

Increasing demand for information exchange is a characteristic of modern civilisation. The transfer of information from the source to its destination has to be done in such a way that the quality of the received information should be as close as possible to the quality of the transmitted information.The information to be transmitted can be machine generated (e.g., images, computer data) or human generated (e.g., speech). Regardless of its source, the information must be translated into ....etc

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In optical networks three multiple access tech. are used WDMA, TDMA, CDMA. In CDMA we need more and more orthogonal codes. It is different from normal orthogonal codes as that are bypolar where as in optical domin thing are unipolar. So this needs one new codes which have less weight. For this thing few techniques are available and we have to develop new one ....etc

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Author: Dr. Sami Khorbotly

Abstract

Here, students learn how error correction coding makes wireless communications more robust in the presence of noise. In the laboratory, the students work in Matlab to code two simple error correction schemes, and simulate their use in a wireless channel. In the process, they learn concepts such as bit error rate, and see the trade-off between processing time and robustness.

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Introduction
Increasing demand for information exchange is a characteristic of modern civilisation. The transfer of information from the source to its destination has to be done in such a way that the quality of the received information should be as close as possible to the quality of the transmitted information.

The information to be transmitted can be machine generated (e.g., images, computer data) or human generated (e.g., speech). Regardless of its source, the information must be translated into a set of signals optimized for the channe ....etc

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