Abstract

VHDL is an acronym which stands for VHSIC Hardware Description Language. VHSIC is yet another acronym which stands for Very High Speed Integrated Circuits
VHDL can wear many hats. It is being used for documentation, verification, and synthesis of large digital designs. This is actually one of the key features of VHDL, since the same VHDL code can theoretically achieve all three of these goals, thus saving a lot of effort.

In addition to being used for each of these purposes, VHDL can be used to take three different approaches to ....etc

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Abstract

The microcontroller based Barcode Decoder decodes code 39 .Code 39 was first barcode symbology to encode alphanumeric data strings .It is for this many industrial groups accepted this technology for their labeling requirements .It is widely used as standard for their labeling requirements .It is widely used in variety of applications. Hewlet- Packard's industrial Digital slot Reader is used here.

HP Barcode decoders provide an excellent scanning performance on a wide range of bar-coded cards and badges .When a bar coded card is s ....etc

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Abstract

VHDL is an acronym which stands for VHSIC Hardware Description Language. VHSIC is yet another acronym which stands for Very High Speed Integrated Circuits
VHDL can wear many hats. It is being used for documentation, verification, and synthesis of large digital designs. This is actually one of the key features of VHDL, since the same VHDL code can theoretically achieve all three of these goals, thus saving a lot of effort.

In addition to being used for each of these purposes, VHDL can be used to take three different approaches to ....etc

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Telephony Communication
DTMF decoder

This circuit detects the dial tone from a telephone line and decodes the keypad pressed on the remote telephone. two distinct frequency tones make up the DTMF(dual tome multiple frequency), and hence the name. The the dialer and the telephone exchange communicate one way through the DTMF communication.the tone generator and the tone decoder consist of a complete communication setup. In this project, IC MT8870DE is used to decode the input dial tone to the dialled numbers. These digital bits can ....etc

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Abstract

The microcontroller based Barcode Decoder decodes code 39 .Code 39 was first barcode symbology to encode alphanumeric data strings .It is for this many industrial groups accepted this technology for their labeling requirements .It is widely used as standard for their labeling requirements .It is widely used in variety of applications. Hewlet- Packard's industrial Digital slot Reader is used here.

HP Barcode decoders provide an excellent scanning performance on a wide range of bar-coded cards and badges .When a bar coded card is s ....etc

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DESIGN AND IMPLEMENTATION OF GOLAY ENCODER AND DECODER


The encoder and decoder, which are designed in this project, are useful in error detection and correction of digital data. Many error detection and correction standards employ cyclic codes like Golay codes because of their special properties that makes it easier to encode and decode these codes in an efficient manner. The error correction aspect of these codes is very important in areas like Satellite Communication where it is often impossible to retransmit the information if an error ....etc

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Abstract

In recent years, several commercial system-on-chip solutions for MP3 decoding have been developed. They are usually built around a specialised RISC processor with an instruction set suitable for MPEG audio decoding. The purpose of this project is to evaluate and implement the different parts of the MP3 decoding without using a processor core. Instead, small hardware accelerators are implemented for each stage in the decoding chain. Using specialised logic could lower the power consumption that is of most importance in ha ....etc

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Viterbi Decoder is a parameterizable high performance IP core that performs decoding of the convolutionally encoded data as well as punctured codes. The core is compatible with various standards such as DVB, 3G, WLAN, WIMAX IEEE 802.16d and 802.16e. This low latency decoder core supports various code rates, constraint lengths and generator polynomials and supports soft decision decoding. The core offers wireless Chipset designers, OEMâ„¢s and ODMâ„¢s a standard compliant platform to
accelerate development process ....etc

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I am pursuing my pg project and i have got stuck in implementing vhdl decoder so please send me vhdl codes for viterbi decoding. ....etc

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HIGH THROUGHPUT AND LOW POWER REED SOLOMEN DECODER FOR ULTRA WIDE BAND FREQUENCIES

Abstract:- Reed Solomon (RS) codes have been widely used in a variety of communication systems such as space communication link, digital subscriber loops and wireless systems, as well as in networking Communications and magnetic and data storage systems. Continual demand for ever-higher data rates and storage capacity makes it necessary to devise very high-speed implementations of RS Decoders. Newer and faster implementations of the decoder are being developed ....etc

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